Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8294813 | Imaging device with a scene discriminator | Yasutoshi Yamamoto, Yuki Miura, Akihiro Okamoto, Shoichi YOKOI, Hidetsugu Ichino +2 more | 2012-10-23 |
| 8174033 | Light emission device including semiconductor light emitting elements | Akinori Yoneda, Akiyoshi Kinouchi | 2012-05-08 |
| 7576714 | Display-panel driving method | Hirofumi Honda, Tetsuro Nagakubo | 2009-08-18 |
| 6528645 | Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material and production method of the same | Kazunari Hamasaki, Yukimasa Watanabe, Mitsuo Ihara, Susumu Hiroshima, Daisuke Kuboshima | 2003-03-04 |
| 6432595 | Single-layer type electrophotosensitive material and image forming apparatus using the same | Yuji Tanaka, Yukikatsu Imanaka, Nobuko Akiba | 2002-08-13 |
| 6271891 | Video signal processing circuit providing optimum signal level for inverse gamma correction | Shuji Ogawa, Nozomu Kikuchi, Junichi Usui, Masayuki Takeda | 2001-08-07 |
| 6190813 | Imaging method and imaging device | Yuji Tanaka | 2001-02-20 |
| 6177220 | Stilbene derivative and method of producing the same, and electrophotosensitive material | Yukimasa Watanabe | 2001-01-23 |
| 6090514 | Electrophotographic photoreceptor | Mikio Kakui, Akihiko Kawahara, Kazunari Hamasaki, Yoshio Inagaki, Ayako Yashima | 2000-07-18 |
| 6022998 | Stilbene derivative and method for producing the same | Yukimasa Watanabe, Yoshio Inagaki | 2000-02-08 |
| 5994012 | Naphthoquinone derivative and electrophotosensitive material using same | Yukimasa Watanabe, Sakae Saito, Akiyoshi Urano, Fumio Sugai, Atsushi Fujii +7 more | 1999-11-30 |
| 5911744 | Refrigerating method and apparatus for showcases and vending machines as well as open type showcases and vending machines utilizing said method and apparatus | — | 1999-06-15 |
| 5863688 | Naphthoquinone derivative | Yukimasa Watanabe, Sakae Saito, Akiyoshi Urano, Fumio Sugai, Atsushi Fujii +7 more | 1999-01-26 |
| 5817810 | Tryptanthrine compounds | Fumio Sugai, Syunichi Matsumoto, Nobuko Akiba, Yukimasa Watanabe, Sakae Saitoh | 1998-10-06 |
| 5773613 | Tryptoanthrinimine derivative and electrophotosensitive material using the same | Nobuko Akiba, Yukimasa Watanabe, Hiroaki Iwasaki, Yasuyuki Hanatani, Yasufumi Mizuta +7 more | 1998-06-30 |
| 5753394 | Trinitrofluorenonimine derivative and electrophotosensitive material using the same | Syunichi Matsumoto | 1998-05-19 |
| 5705694 | Trinitrofluoroenonimine derivative and electrophotosensitive material using the same | Yasufumi Mizuta, Syunichi Matsumoto, Nobuko Akiba, Toshiyuki Fukami, Ichiro Yamazato +2 more | 1998-01-06 |
| 5616441 | Tryptoanthorine derivative contained in electrophotosensitive material | Yasufumi Mizuta, Syunichi Matsumoto, Nobuko Akiba, Toshiyuki Fukami, Ichiro Yamazato +2 more | 1997-04-01 |
| 5514508 | Electrophotosensitive material | Toshiyuki Fukami, Hideo Nakamori, Hiroshi Shiomi, Hisakazu Uegaito, Nariaki Muto +4 more | 1996-05-07 |