SI

Shigeyuki Itoh

HI Hitachi: 62 patents #151 of 28,497Top 1%
HS Hitachi Video And Information Systems: 12 patents #5 of 269Top 2%
SC Sumitomo Chemical: 6 patents #802 of 4,033Top 20%
Ricoh Company: 2 patents #5,693 of 9,818Top 60%
KL Kenwood Limited: 1 patents #119 of 319Top 40%
Samsung: 1 patents #49,284 of 75,807Top 70%
Overall (All Time): #27,018 of 4,157,543Top 1%
73
Patents All Time

Issued Patents All Time

Showing 1–25 of 73 patents

Patent #TitleCo-InventorsDate
12428248 Sheet processing apparatus, image forming apparatus, and image forming system Yusuke Tanaka, Kentaroh Fukami, Atsushi Kuriyama, Yuuki Nakagawa, Yiru Chen +5 more 2025-09-30
11528376 Sheet alignment apparatus, post-processing apparatus, and image forming system Ikumi Takashima 2022-12-13
8987170 Succinimide compound Ryo Ishikawa 2015-03-24
8618329 Iminopropene compound and use thereof Atsushi Iwata 2013-12-31
8410316 Iminopropene compound and use thereof Atsushi Iwata 2013-04-02
8318981 Imidate compound and use thereof for pest control Hideo Kamiyama 2012-11-27
8314858 Imaging and recording apparatus controlling erasure of data in flash type memory Iwao Aizawa, Manabu Wakabayashi 2012-11-20
8278473 Alpha, beta-unsaturated imidate compound and pesticidal composition containing the same Tomohiro Araki 2012-10-02
8084644 Iminopropene compound and use thereof Atsushi Iwata 2011-12-27
7379915 Electronic purse loan system Nonaka Tomoyuki, Kenji Matsumoto, Masayuki Inoue 2008-05-27
7346579 Electronic purse application system and method thereof Kenji Matsumoto, Yutaka Takami, Masayuki Inoue, Iwao Aizawa 2008-03-18
7304669 Imaging and recording apparatus Iwao Aizawa, Manabu Wakabayashi 2007-12-04
7278029 Program writable IC card and method thereof Masayuki Inoue, Yutaka Takami, Kenji Matsumoto 2007-10-02
6976625 Electronic purse Yutaka Takami, Kenji Matsumoto, Masayuki Inoue 2005-12-20
6938165 Program writable IC card and method thereof Masayuki Inoue, Yutaka Takami, Kenji Matsumoto 2005-08-30
6902106 Electronic money transaction system with a radio transmitter and receiver using a portable telephone Yutaka Takami, Kenji Matsumoto 2005-06-07
6827258 Electronic purse Yutaka Takami, Kenji Matsumoto, Masayuki Inoue 2004-12-07
6813321 Digital demodulator Hisakazu Katoh, Akinori Hashimoto, Yuichi Iwadate, Kazuhiko Shibuya, Fumiaki Minematsu +5 more 2004-11-02
6732272 Program writable integrated circuit card and method therefore Masayuki Inoue, Yutaka Takami, Kenji Matsumoto 2004-05-04
6679423 Electronic-money rewarding system for lost and found IC card Makoto Ijichi, Masaaki Hiroya, Hiroshi Asao, Naomi Sato, Kei Yonezawa 2004-01-20
6677989 Imaging and recording apparatus Iwao Aizawa, Manabu Wakabayashi 2004-01-13
6634549 IC card automated transaction terminal and IC used therein Kenji Matsumoto, Yutaka Takami, Masayuki Inoue 2003-10-21
6536661 Electronic money transaction system with a radio transmitter and receiver using a portable telephone Yutaka Takami, Kenji Matsumoto 2003-03-25
6505297 IC card terminal device and installation of application program into IC card terminal device Tetsuharu Inamitsu, Masayuki Inoue, Koichi Yoneta, Yutaka Takami, Kenji Matsumoto +1 more 2003-01-07
6490010 AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio Kazuhiko Shibuya, Junji Kumada, Yuichi Iwadate, Hiroyuki Hamazumi, Toshihiro Nomoto +8 more 2002-12-03