SO

Seiji Okunomiya

HI Hitachi: 9 patents #4,653 of 28,497Top 20%
RS Ricoh Printing Systems: 1 patents #97 of 200Top 50%
📍 Hitachinaka, JP: #494 of 2,447 inventorsTop 25%
Overall (All Time): #521,672 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
7441766 Paper feeder with separation pad and vibration buffers Hiroyuki Seki, Shunichi Oohara, Yoshiaki Yamauchi, Takamitsu Ikematsu, Kazuo Kikuchi 2008-10-28
6661994 Electrophotographic image forming system Yoshio Ohuchi, Kazuhiro Wakamatsu, Hisao Suka, Katsumi Kumada, Chikara Hiraoka +6 more 2003-12-09
5352049 Means for holding thermal transfer printing ink-sheet in cartridge Mikio Shiraishi, Toshihiko Gotoh, Hiroshi Shimizu 1994-10-04
5259680 Thermal transfer printer and ink sheet cassette for use in same Hiroshi Shimizu, Naohiro Ozawa, Toshihiko Gotoh, Kentaro Hanma, Tetsuo Nakano 1993-11-09
5249873 Method and apparatus for thermal transfer recording and ink paper cassette therefor Masashi Yoshida 1993-10-05
5168287 Platen locking mechanism for thermal transfer recording apparatus Youichi Narui, Masami Takada, Naohiro Ozawa 1992-12-01
5092698 Platen roller apparatus Youichi Narui, Masami Takada 1992-03-03
5079565 Thermal transfer printing apparatus and ink paper cassette Hiroshi Shimizu, Naohiro Ozawa, Toshihiko Gotoh, Kentaro Hamma, Youichi Narui 1992-01-07
5037218 Thermal transfer printer capable of using and detecting a plurality of multicolor ribbons Hiroshi Shimizu, Naohiro Ozawa, Toshihiko Gotoh, Kentaro Hanma, Tetsuo Nakano 1991-08-06
D314005 Ink ribbon cassette Yoichi Narui, Katsuya Sato, Masahi Yoshida, Kohichi Tomatsuri, Naohiro Ozawa +3 more 1991-01-22