Papers and Proceedings

Yosuke Ito, Tatsuya Goto and Takuma Hori:
“Simulation of scalar-mode optically pumped magnetometers to search optimal operating conditions”,
IEICE Transactions on Electronics, Vol.E107-C, No.6, pp.164-170, 2023SEI0002 (7 pages) (2023)
Yosuke Ito, Hiroyuki Ueda, Takenori Oida, Takahiro Moriya, Akinori Saito and Motohiro Suyama:
“Simplified Shielded MEG-MRI Multimodal System with Scalar-mode Optically Pumped Magnetometers as MEG Sensors”,
arXiv, arXiv:2401.13287 [physics.med-ph] (2024)
Hiroyuki Ueda and Yosuke Ito:
“Dynamics of magnetization under the spin-lock pulse: general solution of the Bloch equation”,
IEEE Transactions on Magnetics, Vol.59, No.11, 5101005 (5 pages) (2023)
Kazuki Namita, Yosuke Ito and Tetsuo Kobayashi:
“Vector measurement of pico tesla magnetic fields using an optically pumped magnetometer by varying pump beam direction”,
Japanese Journal of Applied Physics, Vol.60, No.7, 076507 (7 pages) (2021)
Naoya Furuhashi, Shiho Okuhata and Tetsuo Kobayashi:
“A Robust and Accurate Deep-Learning-based Method for the Segmentation of Subcortical Brain: Cross-dataset Evaluation of Generalization Performance”,
Magnetic Resonance in Medical Sciences, Vol.20, No.2, pp.166-174 (2021)
Hiroyuki Ueda, Yosuke Ito, Takenori Oida, Yo Taniguchi and Tetsuo Kobayashi:
“Magnetic resonance imaging simulation with spin-lock preparations to detect tiny oscillatory magnetic fields”,
Journal of Magnetic Resonance, Vol.324, 106910 (10 pages) (2021)
Tomoyuki Sogabe, Hiroyuki Ueda, Yosuke Ito, Yo Taniguchi and Tetsuo Kobayashi:
“Dependence of stimulus-induced rotary saturation on the direction of target oscillating magnetic fields: A phantom and simulation study”,
Journal of Magnetic Resonance, Vol.321, 106849 (7 pages) (2020)
Yoshikaze Masuda, Go Okada, Masahiro Takamura, Chiyo Shibasaki, Atsuo Yoshino, Satoshi Yokoyama, Naho Ichikawa, Shiho Okuhata, Tetsuo Kobayashi, Shigeo Yamawaki, Yasumasa Okamono:
“Age-related white matter changes revealed by a whole-brain fiber-tracking method in bipolar disorder compared to major depressive disorder and healthy controls”,
Psychiatry and Clinical Neurosciences, (2020)
Yoshikaze Masuda, Go Okada, Masahiro Takamura, Chiyo Shibasaki, Atsuo Yoshino, Satoshi Yokoyama, Naho Ichikawa, Shiho Okuhata, Tetsuo Kobayashi, Shigeo Yamawaki, Yasumasa Okamono:
“White matter abnormalities and cognitive function in euthymic patients with bipolar disorder and major depressive disorder”,
Brain and Behabior, Vol.10, No.12, e01868 (11 pages) (2020)
Hiroyuki Ueda, Yosuke Ito, Takenori Oida, Yo Taniguchi and Tetsuo Kobayashi:
“Detection of tiny oscillatory magnetic fields using low-field MRI: A combined phantom and simulation study”,
Journal of Magnetic Resonance, Vol.319, 106828 (8 pages) (2020)
Yosuke Ito, Masahito Ueno and Tetsuo Kobayashi:
“Neural magnetic field dependent fMRI toward direct functional connectivity measurements: A phantom study”,
Scientific Reports, Vol. 10, 5463 (11 pages) (2020)
Shiho Okuhata, Hodaka Miki, Ryosuke Nakai and Tetsuo Kobayashi:
“An atlas-based whole-brain fiber-tracking method with automatic setting of an optimal starting plane in all parcels”,
Journal of Neuroscience & Biomedical Engineering, Vol.1, No.1, pp.28-36 (2019)
Takenori Oida, Kentaro Kato, Yosuke Ito and Tetsuo Kobayashi:
“Remote detection of magnetic signals with a compact atomic magnetometer module towards human MRI-MPI hybrid systems”,
International Journal on Magnetic Particle Imaging, Vol.5, No.1, 1906001 (7 pages) (2019)
Sho Ito, Yosuke Ito and Tetsuo Kobayashi:
“Temperature characteristics of K-Rb hybrid optically pumped magnetometers with different density ratios”,
Optics Express, Vol.27, No.6, pp.8037-8047 (2019)
Hiroyuki Ueda, Hiroaki Seki, Yosuke Ito, Takenori Oida, Yo Taniguchi and Tetsuo Kobayashi:
“Dynamics of magnetization under stimulus-induced rotary saturation sequence”,
Journal of Magnetic Resonance, Vol.295, pp.38-44 (2018)
Kazumasa Nishi, Yosuke Ito and Tetsuo Kobayashi:
“High-sensitivity multi-channel probe beam detector towards MEG measurements of small animals with an optically pumped K-Rb hybrid magnetometer”,
Optics Express, Vol.26, No.2, pp.1988-1996 (2018)
Ryosuke Shiraishi and Tetsuo Kobayashi:
“An fMRI-EEG integrative method with model selection procedures for reconstruction of multiple cortical activities”,
Neuroscience & Biomedical Engineering, Vol.5, pp.1-7 (2017)
Yuhki Mamishin, Yosuke Ito and Tetsuo Kobayashi:
“A novel method to accomplish simultaneous multilocation magnetic field measurements based on pump beam modulation of an atomic magnetometer”,
IEEE Trans. on Magnetics, Vol.53, No.5, pp.1-6 (2017)
Ingo Hilschenz, Hiroaki Natsukawa, Yosuke Ito, Takenori Oida, Tetsuya Yamamoto and Tetsuo Kobayashi:
“Remote detected low-field MRI using an optically pumped atomic magnetometer combined with a liquid cooled pre-polarization coil”,
Journal of Magnetic Resonance, Vol.274, pp.89-94 (2017)
Yosuke Ito, Daichi Sato, Keigo Kamada and Tetsuo Kobayashi:
“Optimal densities of alkali metal atoms in an optically pumped K-Rb hybrid atomic magnetometer considering spatial distribution of spin polazization”,
Optics Express, Vol.24, Iss.14, pp.15391-15402 (2016)
Shoji Hamada:
“Electrostatic field analysis of anisotropic conductive media using voxel-based static method of moments with fast multipole method”,
European Journal of Computational Mechanics, Vol.25, Nos.1/2, pp.54-70 (2016)
Takafumi Yano, Hiroaki Natsukawa and Tetsuo Kobayashi:
“Improvements of a normalized integrative fMRI-MEG method by iterative model selection”,
Neuroscience & Biomedical Engineering, Vol.4, No.2, pp.104-112 (2016)
Sunao Ichihara, Natsuhiko Mizutani, Yosuke Ito and Tetsuo Kobayashi:
“Differential measurement using equalized response of optically pumped atomic magnetometers”,
IEEE Trans. on Magnetics, Vol.52, No.8, 4002709 (9 pages) (2016)
Hiroaki Natsukawa, Tetsuo Kobayashi:
“Cortical Activation Associated with Determination of Depth Order during Transparent Motion Perception: A Normalized Integrative fMRI-MEG Study”,
Human Brain Mapping, Vol.36, No.10, pp.3922-3934 (2015)
Keigo Kamada, Yosuke Ito, Sunao Ichihara, Natsuhiko Mizutani and Tetsuo Kobayashi:
“Noise reduction and signal-to-noise ratio improvement of atomic magnetometers with optical gradiometer configurations”,
Optics Express, Vol.23, No.5, pp.6976-6987 (2015)
Keigo Kamada, Daichi Sato, Yosuke Ito, Hiroaki Natsukawa, Kazuhisa Okano, Natsuhiko Mizutani and Tetsuo Kobayashi:
“Human magnetoencephalogram measurements using newly developed compact module of high-sensitivity atomic magnetometer”,
Japanese Journal of Applied Physics, Vol.54, No.2, 026601 (5 pages) (2015)
Yuki Kaga, Takenori Oida and Tetsuo Kobayashi:
“Hyperpolarized xenon imaging with the SWIFT approach in ultra-low field MRI: A simulation study”,
Advanced Biomedical Engineering, Vol.4, pp.42-47 (2015)
Takenori Oida, Masahiro Tsuchida and Tetsuo Kobayashi:
“Actively shielded bias field tuning coil for optically pumped atomic magnetometer toward ultra-low field MRI”,
IEEE Sensors Journal, Vol.15, No.3, pp.1732-1737 (2015)
Mariko Tada, Tatsuya Nagai, Kenji Kirihara, Shinsuke Koike, Motomu Suga, Tsuyoshi Araki, Tetsuo Kobayashi and Kiyoto Kasai:
“Differential alterations of auditory gamma oscillatory responses between pre-onset high-risk individuals and first-episode schizophrenia”,
Cerebral Cortex, pp.1-9 (Advance Access published Dec.1, 2014)
Shoji Hamada:
“Voxel-based analysis of electrostatic fields in virtual-human model Duke using indirect boundary element method with fast multipole method”,
CMES: Computer Modeling in Engineering & Sciences, Vol. 102, No. 5, pp.407-424 (2014)
Yosuke Ito, Daichi Sato, Keigo Kamada, Tetsuo Kobayashi:
“Measurements of magnetic field distributions with an optically pumped K-Rb hybrid atomic magnetometer”,
IEEE Transactions on Magnetics, Vol.50, No.11, 4006903 (3 pages), (2014)
Natsuhiko Mizutani, Kazuhisa Okano, Kazuhiro Ban, Sunao Ichihara, Akira Terao and Tetsuo Kobayashi:
“A plateau in the sensitivity of a compact optically pumped atomic magnetometer module”,
AIP advances, Vol.4, 057132-1-7 (2014)
Hirokazu Kawaguchi and Tetsuo Kobayashi:
“A method for precise extraction of EEG rhythmic activities using multivariate empirical mode docomposition and Hilbert transform”,
Neuroscience & Biomedical Engineering, Vol.1, No.2, pp.153-162 (2014)
Shoji Hamada:
“A voxel-based electrostatic field analysis for the virtual-human model Duke using the indirect boundary element method With a GPU-accelerated fast multipole method”,
Boundary Elements and other Mesh Reduction Methods XXXVII, pp.135-147 (2014)
Shoji Hamada:
“Voxel-based analysis of electrostatic fields in virtual-human model Duke using indirect boundary element method with fast multipole method”,
Advances in Boundary Element & Meshless Techniques XV, pp.93-100 (2014)
Akira Terao, Kazuhiro Ban, Sunao Ichihara, Natsuhiko Mizutani and Tetsuo Kobayashi:
“Highly responsive AC scalar atomic magnetometer with long relaxation time”,
Physical Review A, Vol.88, 063413 (6 pages), (2013)
Shizue Nagahara, Masahito Ueno and Tetsuo Kobayashi:
“Spin-lock imaging for neural magnetic-field-dependent fMRI: Simulations and phantom studies”,
Advanced Biomedical Engineering, Vol.2, pp.63-71 (2013)
Shiho Okuhata, Takuya Kusanagi and Tetsuo Kobayashi:
“Parietal EEG alpha suppression time of memory retrieval reflects memory load while the alpha power of memory maintenance is a composite of the visual process according to simultaneous and successive Sternberg memory tasks”,
Neuroscience Letters, Vol.555, No.25, pp.79-84 (2013)
Hirokazu Kawaguchi, Takahiro Kume and Tetsuo Kobayashi:
“A background EEG removal method combining PCA with multivariate empirical mode decomposition for event-related potential measurements”,
IEEJ Transactions on Electrical and Electronic Engineering, Vol.8, No.S-1, S53-S60 (2013)
Kazuo Kato, Osamu Miura, Arimitsu Shikoda, Tomohiro Kuroki, Atsuo Ishikawa and Tetsuo Kobayashi:
“Event-related potentials affected by spatial frequencies of background visual pattern during a cognitive task”,
IEEJ Transactions on Electrical and Electronic Engineering, Vol.8, No.5, pp.483-488 (2013)
Shoji Hamada:
“Performance comparison of three types of GPU-accelerated indirect boundary element method for voxel model analysis”,
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Vol.26, No.4, pp.337-354 (2013)
Utako Yamamoto, Akifumi Hisada, Tetsuo Kobayashi, Shinsuke Kito and Yoshihiko Koga:
“Analyses of disruption of white matter integrity in schizophrenia using DTI tracking with automatic region of interest construction”,
Advanced Biomedical Engineering, Vol.2, pp.1-10 (2013)
Tetsuo Kobayashi, Koichiro Akamatsu and Hiroaki Natsukawa:
“Cortical neural activities associated with binocular rivalry: An EEG-fMRI integrative study”
Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'13), pp.5414-5417 (2013)
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada and Tetsuo Kobayashi:
“Rate-Equation Approach to Optimal Density Ratio of K-Rb Hybrid Cells for Optically Pumped Atomic Magnetometers”,
Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'13), pp.3254-3257 (2013)
Takenori Oida and Tetsuo Kobayashi:
“Free Induction Decay MR Signal Measurements toward Ultra-low Field MRI with an Optically Pumped Atomic Magnetometer”,
Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'13), pp.2615-2618 (2013)
Shizue Nagahara and Tetsuo Kobayashi:
“Bloch simulations towards direct detection of oscillating magnetic fields using mri with spin-lock sequence”,
Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'13), pp.1061-1064 (2013)
Shizue Nagahara, Takenori Oida and Tetsuo Kobayashi:
“An explanation of signal changes in DW-fMRI: Monte Carlo simulation study of restricted diffusion of water molecules using 3D and two-compartment cortical cell models”,
IEICE TRANSACTIONS on Information and Systems, Vol.E96-D, No.6, pp.1387-1393 (2013)
Hiroaki Natsukawa and Tetsuo Kobayashi:
“Dynamic cortical activations associated with saccade execution: A normalized integrative fMRI-MEG study”,
Advanced Biomedical Engineering, Vol.1, pp.27-35 (2012)
Kazuhisa Okano, Akira Terao, Kazuhiro Ban, Sunao Ichihara, Natsuhiko Mizutani and Tetsuo Kobayashi:
“Development of high-sensitivity portable optically pumped atomic magnetometer with orthogonal pump and probe laser beams”,
Proceedings of IEEE Sensors 2012, pp.1-4 (2012)
Keigo Kamada, Yosuke Ito, Tetsuo Kobayashi:
“Human MCG measurements with high-sensitivity potassium atomic magnetometer”,
Physiological Measurement, Vol.33, pp.1063-1071 (2012)
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada and Tetsuo Kobayashi:
“Development of optically pumped atomic magnetometer using a K-Rb hybrid cell and its application to magnetocardiography”,
AIP advances, Vol.2, 032127-1-5 (2012)
Takenori Oida, Masahiro Tshuchida and Tetsuo Kobayashi:
“Direct detection of magnetic resonance signals in ultra-low fiels MRI using a optically pumped atomic magnetometer”,
IEEE Trans. Magnetics, Vol.48, No.11, pp.2877-2880 (2012)
Natsuhiko Mizutani and Tetsuo Kobayashi:
“Magnetic field vector detection in frequency domain with an optical pumping atomic magnetometer with two probe beams”,
IEEE Trans. Magnetics, Vol.48, No.11, pp.4096-4099 (2012)
Yosuke Ito, Hiroyuki Ohnishi, Keigo Kamada and Tetsuo Kobayashi:
“Effect of spatial homogeneity of spin polarization on magnetic field response of an optically pumped atomic magnetometer using a hybrid cell of K and Rb atoms”,
IEEE Trans. Magnetics, Vol.48, No.11, pp.3715-3718, (2012)
Teruyoshi Sasayama, Shoji Hamada and Tetsuo Kobayashi:
“Application of prewhitening beamformer with linear constraints for correlated EEG signal source estimation”,
Chapter 25, in Biomedical Engineering and Cognitive Neuroscience for Healthcare: Interdisciplinary Applications, (ed.) J.Wu (IGI Global, USA), pp.243-254 (2012)
Takenori Oida, Yosuke Ito, Keigo Kamada, and Tetsuo Kobayashi:
“Detecting rotating magnetic fields using optically pumped atomic magnetometers for measuring ultra-low-field magnetic resonance signals”,
Journal of Magnetic Resonance, vol.217, 6-9 (2012)
Tatsuya Yamashita, Takenori Oida, Shoji Hamada, and Tetsuo Kobayashi:
“Thermal noise calculation method for precise estimation of the signal-to-noise ratio of ultra-low-field MRI with an atomic magnetometer”,
Journal of Magnetic Resonance, vol.215, 100-108 (2012)
Tetsuo Kobayashi:
“Toward ultra-low field multimodal MRI with atomic magnetomer”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 1- 4(2012)
Shiho Okuhata, Tsuyoshi Kusanagi, Hirokazu Kawaguchi and Tetsuo Kobayashi:
“Sequential memory scanning during Sternberg memory task regardless of the differerence presentation style”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 86-89 (2012)
Utako Yamamoto, Yoshihide Sakagami, Takenori Oida and Tetsuo Kobayashi:
“MR diffusion tensor tractography by searching minimum curvature deviation in the vicinity of fiber crossing area”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 588-592 (2012)
Hirokazu Kawaguchi and Tetsuo Kobayashi:
“A locally removal method of eye-blink artifacts forcusing on reduction of EEG information loss”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 615-618 (2012)
Shizue Nagahara, Takenori Oida and Tetsuo Kobayashi:
“Simulation studies on appropriate imaging parameters for DW-fMRI using 3D and 2-compartment models”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 619-622 (2012)
Hiroaki Natsukawa and Tetsuo Kobayashi:
“Functional MRI and magnetoencephalographic studies on cortical activities during visually guided saccades”,
Proceedings of 2012 IEEE/ICME International Conference on Complex Medical Engineering, pp. 643-646 (2012)
Teruyoshi Sasayama and Tetsuo Kobayashi: 　“Movement-imagery brain-computer interface: EEG classification of beta rhythm synchronization based on cumulative distribution function”, 　IEICE Transaction on Information and Systems, Vol.E94-D, No.12, pp.2479-2486 (2011)
Shuji Taue, Yasuyuki Sugihara, Tetsuo Kobayashi, Kiyoshi Ishikawa and Keigo Kamada:
“Magnetic field mapping and biaxial vetor operation for biomagnetic appications using high-sensitivity optically pumped atomic magnetometers”,
Japanese Journal of Applied Physics, vol.50, p.116604 (2011)
Yousuke Ito, Hiroyuki Ohnishi, Keigo Kamada, Tetsuo Kobayashi:
“Sensitivity improvement of spin-exchange relaxation free atomic magnetometers by hybrid optical pumping of potassium and rubidium”,
IEEE Transactions on Magnetics, Vol.47, No.10, pp.3550-3553 (2011)
Takenori Oida, Yuta Kawamura and Tetsuo Kobayashi:
“Optimization of flux transformer for ultra-low field MRI systems with optically pumped atomic magnetometers”,
IEEE Transactions on Magnetics, Vol.47, No.10, pp.3074-3077 (2011)
Keigo Kamada, Shuji Taue, Tetsuo Kobayashi:
“Pump laser power dependent bandwidth and sensitivity of optically pumped atomic magnetometers”,
Japanese Journal of Applied Physics, Vol.50, 056602-1-7 (2011)
Takenori Oida, Shizue Nagahara and Tetsuo Kobayashi:
“Acquisition parameter settings in diffusion tensor imaging for emphasizing frectional anisotropy”,
Magnetic Resonance in Medical Sciences, Vol.10, No.2, pp.121-128 (2011)
Utako Yamamoto, Yoshiaki Kono, Tetsuo Kobayashi, Shinsuke Kito and Yoshihiko Koga:
“Study on disruption of cerebral white matter integrity in schizophrenia with MR-DTI tractgraphy”,
IFMBE Proceedings, (Proceedings of 5th European Conference of the Internatiopnal Federation for Medical and Biological Engineering), Vol.37, (DVD), pp.618-621 (2011)
Hiroaki Natsukawa and Tetsuo Kobayashi:
“Cortical activities during transparent motion perception: An fMRI-MEG integrative study”,
IFMBE Proceedings, (Proceedings of 5th European Conference of the Internatiopnal Federation for Medical and Biological Engineering), Vol.37, (DVD), pp.1194-1197 (2011)
Tetsuo Kobayashi:
“Binocular Rivalry: A key phenomenon to understand temporal dynamics of conscious perception”,
Proceedings of 2011 International Symposium on Nonlinear Theory and its Applications (DVD), Vol.1, pp.80-83 (2011)
Teruyoshi Sasayama, Shoji Hamada and Tetsuo Kobayashi:
“Application of the linearly-constrained prewhitening beamformer to reconstruction of highly correlated EEG singal sources”,
Proceedings of 2011 IEEE/ICME International Conference on Complex Medical Engineering, pp.593-598 (2011)
Shuji Taue, Yasuyuki Sugihara, Tetsuo Kobayashi Sunao Ichihara, Kiyoshi Ishikawa and Natsuhiko Mizutani:
“Development of a highly sensitive optically pumped atomic magnetometer for biomagnetic field measurements: A phantom study”,
IEEE Transactions on Magnetics, Vol.46 No.9, pp.3635-3638 (2010)
Akifumi Ikeda, Shinsuke Kito, Jiuk Jung, Tetsuo Kobayashi and Yoshihiko Koga:
“Decreased cross-sectional area of anterior tharamic peduncle in bipolar disorder: A fiber trackimg study”,
Journal of International Society of Life Information Science (ISLIS), Vol.28, No.1, pp.14-22 (2010)
Teruyoshi Sasayama, Tomoaki Iida, Takenori Oida, Shoji Hamada and Tetsuo Kobayashi:
“Constraction of human head voxel models from MR images for EEG analysis based on EM algorithm”,
Proceedings of 2010 IEEE/ICME International Conference on Complex Medical Engineering (DVD), pp.100-105 (2010)
Akimasa Hirata, Kenichi Yamazaki, Shoji Hamada, Yoshitsugu Kamimura, Hiroo Tarao, Kanako Wake, Yukihisa Suzuki, Noriyuki Hayashi, and Osamu Fujiwara:
“Intercomparison of induced fields in Japanese male model for ELF magnetic field exposures: effect of different computational methods and codes”,
Radiation Protection Dosimetry, Vol. 138, No. 3, pp. 237-44 (2010)
Shinsuke Kito, Jiuk Jung, Tetsuo Kobayashi and Yoshihiko Koga:
“Fiber tracking of white matter integrity connecting the mediodorsal nucleus of the thalamus and the prefrontal cortex in schizophrenia: A diffusion tensor imaging study”,
European Psychiatry, Vol.24, pp.269-274 (2009)
Mitsuhiro Kitano, Shoji Hamada and Tetsuo Kobayashi:
“Analytical formula of induced electric fields in a spherical conductor by an ELF field source”,
Electrical Engineering in Japan, Vol.166, No.3, pp.8-17 (2009)
Jiuk Jung and Tetsuo Kobayashi:
“Event-related fields in a common fate grouping task”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.7-10 (2009)
Hiroaki Natsukawa, Jiuk Jung and Tetsuo Kobayashi:
“Brain activations associated with determination of depth order in transparent motion perception: An MEG study”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.15-18 (2009)
Kazuo Kato, S. Suzuki, S. Shidara, K. Sugawara, A. Ishikawa and Tetsuo Kobayashi:
“Event-retated potentials related to working memory in the presence of ambient noises”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.19-22 (2009)
Teruyoshi Sasayama, Jiuk Jung and Tetsuo Kobayashi:
“Classifiers of EEG beta rhythms between right and left wrist-bending hand movements and teir imageries”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.167-170 (2009)
Hirokazu Kawaguchi, Teruyoshi Sasayama, Jiuk Jung, Takenori Oida and Tetsuo Kobayashi:
“Spatial filtering of steady-state samatosensory evoked potentials toward the development of brain-machine interface”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.175-178 (2009)
Shuji Taue, Yasuyuki Sugihara, Tetsuo Kobayashi, Sunao Ichihara, Kiyoshi Ishikawa, and Natsuhiko Mizutani:
“Phantom measurements of magnetic field distributions by a newly developed optically-pumped atomic magnetometer: A basic study toward biomagnetic applications”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.181-184 (2009)
Takenori Oida, Shizue Nagahara and Tetsuo Kobayashi:
“Aquisition parameters in MR diffusion tensor imaging for clarifying the direction of nerve fibers”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.209-212 (2009)
Shizue Nagahara, Takenori Oida and Tetsuo Kobayashi:
“Appropriate MPG parameters for diffusion weighted functional MRI”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.213-216 (2009)
Utako Yamamoto, Tetsuo Kobayashi, Shinsuke Kito and Yoshihiko Koga:
“A MR diffusion tensor imaging study on disruption of cerebral white matter integrity in schizophrenia: Fiber tracking of the superior longitudinal fasciculus”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.219-222 (2009)
Kenji Kirihara, T. Arai, Y. Kawakubo, T. Onitsuka, Tetsuo Kobayashi, and Kiyoto Kasai:
“Gamma band activity during gaze perception in schizophrenia”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.223-226 (2009)
Shoji Hamada:
“GPU accelerated lead field calculation by indirect boundary element method for voxel models”,
Brain Topography and Multimodal Imaging, (eds.) Kobayashi, T. et al, (Kyoto University Press, Kyoto, Japan), pp.187-190 (2009)
Kazuo Kato, O. Miura, Arimitsu Shikoda, K. Sugawara, Atsuko Ishikawa and Tetsuo Kobayashi:
“Effect of visual image features on neural activities: An fMRI study”,
Proceedings of World Congress on Medical Physics and Biomedical Engineering 2009, pp.312-314 (2009)
Tetsuo Kobayashi:
“An integrative fMRI-MEG method analyzing dynamic activations of multiple cortical areas”,
Proceedings of the 2009 International Symposium on Early Detection and Rehabilitation Technology of Dementia (DVD), pp.40-43 (2009)
Osamu Yamamoto, Hirotaka Hayashi, Toshihiko Wadahama, Daisuke Takeda, Shoji Hamada, Yasuharu Ohsawa:
“Charging characteristics of an insulating hollow cylinder in vacuum”,
IEEJ Trans. FM, Vol. 128, No. 10, pp. 606-610 (2008)
Shoji Hamada and Tetsuo Kobayashi:
“Analysis of electric field induced by ELF magnetic field utilizing fast-multipole surface charge simulation method for voxel data”,
Electrical Engineering in Japan, Vol.165, No.4, pp.1-10 (2008)
Shoji Hamada, Mitsuhiro Kitano and Tetsuo Kobayashi:
“Application of the equivalent multipole moment method with polar translations to forward calculation of neuromagnetic fields”,
Electronics and Communication in Japan, Vol.91, No.4, pp.34-44 (2008)
Akiyoshi Tatematsu, Shoji Hamada, and Tadasu Takuma:
“Estimation of charge distribution on a bulky solid dielectric using regularization technique”,
Electrical Engineering in Japan, Vol. 163, No. 2, pp. 1-13 (2008)
Shuji Taue, Sunao Ichihara, Yasuyuki Sugihara, Kiyoshi Ishikawa, Hideyuki Sugioka, Natsuhiko Mizutani, Shujie Liu, Yoshikazu Hirai, Osamu Tabata and Tetsuo Kobayashi:
“Measurement of Biomagnetic Fields in Small Animals by use of an Optical Pumping Atomic Magnetometer”,
Biomagnetism: Interdisciplinary Research and Exploration, (eds.) Kakigi, R. et al. (Hokkaido University Press, Sapporo, Japan), pp.9-11 (2008)
Tomoaki Iida, Teruyoshi Sasayama, Takenori Oida, Masaki Ino and Tetsuo Kobayashi:
“Brain activation during exacution and imagery of simple wrist-bending movement: An fMRI study”,
Proceedings of The 2nd International Symposium on Complex Medical Engineering, pp.41-44 (2008)
Hiroaki Natsukawa, Tetsuo Kobayashi, Takenori Oida and Jiuk Jung:
“Optokinetic eye movements elicited by transparent drifting random dot patterns”,
Proceedings of The 2nd International Symposium on Complex Medical Engineering, pp.87-90 (2008)
Takenori Oida, Daiki Orio and Tetsuo Kobayashi:
“Optimization of imaging parameters in MR-DTI for maximizing frectional anisotropy”,
Proceedings of The 2nd International Symposium on Complex Medical Engineering, pp.91-94 (2008)
Teruyoshi Sasayama, Tomoaki Iida, Jiuk Jung and Tetsuo Kobayashi:
“Descrimination between right and left hand movements and/or their imageries based on EEG fast oscillatory activities”,
Proceedings of The 2nd International Symposium on Complex Medical Engineering, pp.109-112 (2008)
Tetsuo Kobayashi and Takenori Oida:
“An MR-DTI based fiber tracking method toword the multimodal study on cognitive brain functions”,
Proceedings of the 30th Annual International Conference of the IEEE Eingineering in Medicine and Biology Society, pp.5498-5501(2008)
Yusuke Okada, Jiuk Jung and Tetsuo Kobayashi:
“An automatic identification and removal method for eyeblink artifacts in event-related magnetoencephalographic measurements”,
Physiological Measurements, Vol. 28, pp.1523-1532 (2007)
Tetsuo Kobayashi, Yasuyuki Innami, Shumpei Ohashi, Yusuke Okada, Jiuk Jung and Shoji Hamada:
“fMRI-MEG integrative neuroimaging in an apparent visual motion perception task”,
Proceedings of IEEE/ICME International Conference on Complex Medical Engineering, pp.1-4 (2007)
Shoji Hamada, Mitsuhiro Kitano, Tetsuo Kobayashi:
“Numerical calculation of neuromagnetic fields by fast-multipole surface-charge-simulation method for voxel models”,
Proceedings of APCOM'07 in conjunction with EPMESC XI, MS6-3-1(MS6-3-1.pdf, 10pages), (2007)
Shoji Hamada and Akiyoshi Tatematsu:
“Solving regularized least squares with qualitatively controlled adaptive cross-approximated matrices”,
Electrical Engineering in Japan, Vol. 159, No. 3, pp. 10-18 (2007)
Osamu Yamamoto, Takehiro Sato, Hirotaka Hayashi, Shoji Hamada, Tetsuo Kobayashi, Hiroshi Omura and Hiroshi Morii:
“Effects of roughening insulator surface on charging and flashover characteristics of a long glass insurator”,
IEEJ Trans. EIS, Vol.126, No.8, pp.769-774 (2006)
Shoji Hamada, Osamu Yamamoto and Tetsuo Kobayashi:
“Analysis of electric field induced by ELF magnetic field utilizing generalized equivalent multiple-moment method”,
Electrical Engineering in Japan, Vol.156, No.2, pp.1-14 (2006)
Jiuk Jung and Tetsuo Kobayashi:
“The analyses of brain functions based on wavelet coherence of EEG gamma-band activities: An application to a perceptual grouping task”,
Proceedings of World Congress on Medical Physics and Biomedical Engineering 2006, pp.2613-2616 (2006)
Shoji Hamada and Tetsuo Kobayashi:
“Analysis of current density distribution induced by ELF magnetic fields utilizing fast-multipole surface-charge-simulation method for voxel data”,
Proceedings of The Progress in Electromagnetics Research Symposium, pp. 483-487 (CD-ROM), (2006)
Osamu Yamamoto, Hirotaka, Hayashi, Takehiro Satoh, Shoji Hamada, Tetsuo Kobayashi, Hiroshi Omura, Hirosi Morii:
“Flashover and charging characteristics of a long solid insulator exposed to ac voltage in vacuum”,
Proceedings of The XXIInd International Symposium on Discharges and Electrical Insulation in Vacuum, Vol.1, pp. 109-112 (2006)
Jiuk Jung, Shohko Tokita and Tetsuo Kobayashi:
“Brain activity in a similarity grouping task: A functional MRI study”,
Proceedings of The First International Conference on Complex Medical Engineering, pp.843-846 (2005)
Jiuk Jung and Tetsuo Kobayashi:
“Induced gamma-band activity in a similarity grouping task”,
International Congress Series, vol.1270, pp.225-228 (2004)
: Frontiers in Human Brain Topography”, (eds.) M. Nakagawa, K. Hirata, Y. Koga and K. Nagata
(Elsevier Science B.V., 2004)
Yoshimitsu Okita, Tetsuo Kobayashi, Noboru Ohki, Isao Takahashi, Teruhisa, Kazui, Motohiko Kimura and Toshifumi Sugiura:
“Event-related potentials in a memory scan task concerned with movement directions”,
International Congress Series, vol.1270, pp.266-269 (2004)
: Frontiers in Human Brain Topography, (eds.) M. Nakagawa, K. Hirata, Y. Koga and K. Nagata
(Elsevier Science B.V., 2004)
Tetsuo Kobayashi:
“Neocortical dynamics detected by steady-state multisensory evoked neuromagnetic fields”,
Proceedings of 2004 International Symposium on Nonlinear Theory and its Applications, Vol.1, pp.299-302 (2004)
Osamu Yamamoto, Shoji Hamada, Tetsuo Kobayashi, Hiroshi Omura:
“Comparison of insulator charging phenomena in vacuum subjected to AC and DC voltages”,
Proceedings of 12th Asian Conference on Electrical Discharge, pp.400-403 (2004)

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