KO

Kenji Ohta

Sharp Kabushiki Kaisha: 207 patents #8 of 10,731Top 1%
HI Hitachi: 11 patents #3,813 of 28,497Top 15%
Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
HM Hitachi Maxell: 7 patents #125 of 1,211Top 15%
Nissan Motor Co.: 6 patents #1,257 of 8,689Top 15%
HC Hitachi Automotive Engineering Co.: 4 patents #36 of 314Top 15%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
HC Hitachi Car Engineering Co.: 3 patents #152 of 465Top 35%
OC Olympus Optical Co.: 2 patents #1,178 of 2,334Top 55%
SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
AT Agency Of Industrial Science And Technology: 2 patents #293 of 1,778Top 20%
JC Jidosha Denki Kogyo Co.: 2 patents #38 of 121Top 35%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
ME Mitsubishi Engineering-Plastics: 1 patents #79 of 163Top 50%
MM Mitsubishi Metal: 1 patents #45 of 150Top 30%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
SH Shap: 1 patents #2 of 6Top 35%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
DC Dai Nippon Toryo Co.: 1 patents #73 of 196Top 40%
Overall (All Time): #2,007 of 4,157,543Top 1%
249
Patents All Time

Issued Patents All Time

Showing 26–50 of 249 patents

Patent #TitleCo-InventorsDate
D507526 Battery charger for an input/output terminal of a computer 2005-07-19
D507592 Cash register Kanji Mizusugi 2005-07-19
6876603 Information write/read head including an optical slit having a light emitting section whose width is shorter than a light beam diffraction limit Hiroshi Fuji, Hiroyuki Katayama, Kunio Kojima 2005-04-05
D501207 Input/output terminal for a computer Kanji Mizusugi 2005-01-25
6819648 Optical sample and method of writing and reading information on the same Junji Tominaga, Nobufumi Atoda, Hiroshi Fuji, Hiroyuki Katayama 2004-11-16
6804822 Magnetic recording medium and magnetic recording apparatus using same Junichi Sato, Kosuke Watanabe, Kunio Kojima, Hiroyuki Katayama, Hiroshi Fuji 2004-10-12
6687216 Cartridge in which disk is stored Hiroshi Nakashima, Noriaki Kitani, Takao Enomoto, Hiroyoshi Takagi, Hikaru Mizutani +1 more 2004-02-03
6665235 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium Yoshiteru Murakami, Junji Hirokane, Junichiro Nakayama, Junsaku Nakajima, Akira Takahashi +1 more 2003-12-16
6661745 Optical reproducing and recording method, recording medium, and optical device Junji Tominaga, Nobufumi Atoda, Hiroshi Fuji, Hiroyuki Katayama 2003-12-09
6648822 Communication apparatus and communication method for outputting an estimate of a patient's mental state Masaki Hamamoto, Yoshiji Ohta, Keita Hara 2003-11-18
6504679 Erasure prevention in disc cartridge 2003-01-07
6483785 Magneto-optical recording method using the relation of beam diameter and an aperture of converging lens Yoshiteru Murakami, Junji Hirokane, Junichiro Nakayama, Junsaku Nakajima, Akira Takahashi +1 more 2002-11-19
6457353 Apparatus of diagnosing an internal combustion engine and a method of diagnosing of an internal combustion engine Atsushi Kanke, Minoru Ohsuga 2002-10-01
6397673 Air flow measuring apparatus Atsushi Kanke, Yasuo Makie 2002-06-04
6379864 Method for manufacturing an optical disk Tetsuya Inui, Akira Takahashi 2002-04-30
6339231 Gate commutated turn-off thyristor module 2002-01-15
6321165 Air flow measurement apparatus Atsushi Kanke 2001-11-20
6261707 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium Yoshiteru Murakami, Junji Hirokane, Junichiro Nakayama, Junsaku Nakajima, Akira Takahashi +1 more 2001-07-17
6230559 Thermal type flow measuring instrument and temperature-error correcting apparatus thereof Shinya Igarashi, Yasuo Makie, Atsushi Kanke, Takashi Kadohiro, Chihiro Kobayashi 2001-05-15
D435854 Disc cartridge Hiroyoshi Takagi, Hikaru Mizutani, Noriaki Kitani, Takao Enomoto, Hiroshi Nakashima +2 more 2001-01-02
6143436 Magnetic recording medium and information recording-reproduction method using the same Junsaku Nakajima, Akira Takahashi, Junji Hirokane, Yoshiteru Murakami 2000-11-07
6067285 Optical disc Toshikazu Nagaura, Masayasu Futagawa, Shinji Yamagami, Yoshiteru Murakami, Hiroyuki Ikenaga +3 more 2000-05-23
6058100 Optical recording medium having pit rows Michinobu Mieda, Junji Hirokane, Akira Takahashi, Shigeo Terashima 2000-05-02
6055223 Optical memory apparatus Yoshikazu Fujii, Tetuya Inui, Toshihisa Deguchi, Shigemi Maeda 2000-04-25
D423040 Copier Takaaki Kuwahara, Keiichi Takao 2000-04-18