TN

Toshihiko Nagase

KT Kabushiki Kaisha Toshiba: 77 patents #149 of 21,451Top 1%
Toshiba Memory: 27 patents #16 of 1,971Top 1%
SH Sk Hynix: 9 patents #856 of 4,849Top 20%
Kioxia: 7 patents #175 of 1,813Top 10%
NU National University Corporation Tohoku University: 1 patents #86 of 170Top 55%
📍 Seoul, KR: #206 of 39,741 inventorsTop 1%
Overall (All Time): #9,727 of 4,157,543Top 1%
121
Patents All Time

Issued Patents All Time

Showing 101–121 of 121 patents

Patent #TitleCo-InventorsDate
7298644 Magnetoresistance effect device having crystal grain boundary and method of manufacturing the same Katsuya Nishiyama 2007-11-20
7272107 Optical recording medium having super resolution layer Katsutaro Ichihara, Akira Kikitsu 2007-09-18
7193890 Magnetoresistive effect device, magnetic random access memory, and magnetoresistive effect device manufacturing method Sumio Ikegawa 2007-03-20
7190613 Magnetic random access memory device having thermal agitation property and high write efficiency Hiroaki Yoda, Masatoshi Yoshikawa, Tadashi Kai, Tatsuya Kishi, Hisanori Aikawa +1 more 2007-03-13
7081328 Optical disk having super-resolution film Kenji Todori, Katsutaro Ichihara, Naoko Kihara 2006-07-25
7054087 Magnetic recording-reproducing apparatus Tadashi Kai, Akira Kikitsu, Tomoyuki Maeda, Junichi Akiyama 2006-05-30
6972992 Tunneling magnetoresistive random access memory with a multilayer fixed layer Yoshiaki Fukuzumi 2005-12-06
6972923 Magnetic recording medium and magnetic recording/reproducing apparatus using the same Junichi Akiyama, Akira Kikitsu, Tadashi Kai, Tomoyuki Maeda, Hisanori Aikawa 2005-12-06
6930847 Magnetic recording-reproducing apparatus Tadashi Kai, Akira Kikitsu, Tomoyuki Maeda, Junichi Akiyama 2005-08-16
6830824 Magnetic recording medium with multiple magnetic layers capable of being exchange coupled at elevated temperatures and magnetic recording apparatus Akira Kikitsu, Junichi Akiyama, Katsutaro Ichihara, Tadashi Kai, Tomoyuki Maeda 2004-12-14
6826144 Optical recording medium, optical recording and/or reproducing method, and optical recording and/or reproducing system Katsutaro Ichihara, Akira Kikitsu 2004-11-30
6795380 Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus Junichi Akiyama, Akira Kikitsu, Tadashi Kai, Tomoyuki Maeda 2004-09-21
6777078 Magnetic recording medium with L10 crystal grains including three or more elements Tomoyuki Maeda, Akira Kikitsu, Junichi Akiyama 2004-08-17
6744717 Optical disk and optical disk drive Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa 2004-06-01
6738335 Optical recording medium, reproducing method, and reproducing apparatus Kenji Todori, Katsutaro Ichihara 2004-05-18
6606291 Optical disk and optical disk drive Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa 2003-08-12
6554972 Information recording medium and its manufacturing method Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Naomasa Nakamura 2003-04-29
6385162 Optical disk Katsutaro Ichihara 2002-05-07
6339582 Optical disk and recording/reproducing method thereof Katsutaro Ichihara 2002-01-15
6296915 Optical recording medium Keiichiro Yusu, Sumio Ashida, Akira Kikitsu, Katsutaro Ichihara, Naomasa Nakamura +2 more 2001-10-02
6187406 Optical disk and optical disk drive Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa 2001-02-13