HO

Hirobumi Ouchi

HI Hitachi: 8 patents #5,191 of 28,497Top 20%
RS Ricoh Printing Systems: 3 patents #44 of 200Top 25%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #387,110 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7813674 Developing toner for electrophotography and electro-photographic device Junji Kobayashi, Shigenori Yaguchi, Tomonari Hokkyo 2010-10-12
7570904 Image forming apparatus Shigenori Yaguchi, Junji Kobayashi, Tomonari Hokkyo 2009-08-04
7435519 Electrophotographic toner and image forming apparatus Shigenori Yaguchi, Junji Kobayashi, Tomonari Hokkyo 2008-10-14
7144667 Electrostatic charge image developing toner, and developer, image forming apparatus and image forming method using the same toner Tsuneaki Kawanishi, Junji Kobayashi, Ryuuichi Shimizu, Shigenori Yaguchi 2006-12-05
5634183 Image printer Yosuke Saito, Yasuo Kikuchi, Katsuhiro Akinaga, Tomio Sugaya 1997-05-27
5245491 Magneto-optical head employing optical fiber connected stationary and movable portions Makoto Horie, Hideyuki Takashima, Shigeru Nakamura, Masahiro Ojima 1993-09-14
5095472 Focusing error detecting system for optical head Akihiro Uchino, Seigo Naitoh, Shigeru Nakamura 1992-03-10
4816890 Optoelectronic device Ichiro Fujiwara, Hiroshi Matsuda, Kazuhiro Ito, Kazuyuki Nagatsuma 1989-03-28
4740819 Photo semiconductor device Hiroshi Matsuda, Makoto Morioka, Masahiko Kawata, Kazuhiro Kurata, Yasushi Koga 1988-04-26
4563764 Semiconductor laser device Takao Kuroda, Takashi Kajimura, Yasutoshi Kashiwada, Naoki Chinone, Tsukuru Ohtoshi 1986-01-07
4367483 Optical semiconductor device Takeo Takahashi, Kazuhiro Kurata, Yuichi Ono, Kazuhiro Ito, Makoto Morioka +5 more 1983-01-04
4346395 Light detecting photodiode-MIS transistor device 1982-08-24
4242695 Low dark current photo-semiconductor device Toji Mukai 1980-12-30