Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6322940 | Electrophotographic photoreceptor and electrophotographic image forming process | Satoshi Nishigaki | 2001-11-27 |
| 6150063 | Electrophotographic photoconductor and image formation method | Yuko Takeda | 2000-11-21 |
| 6143453 | Electro-photographic photoreceptor and image-forming apparatus using same | Akihiro Kondoh | 2000-11-07 |
| 6022655 | Photoreceptor for electrophotography, bishydrazone compound and intermediate thereof, and method for producing bishydrazone compound and intermediate thereof | Akihiro Kondo, Yuko Inoue, Takatsugu Obata | 2000-02-08 |
| 5789126 | Electrophotographic photoconductor | — | 1998-08-04 |
| 5492786 | Electrophotographic photoreceptor | Satoshi Katayama, Kazushige Morita, Yoshimi Kojima, Yoshimasa Fujita, Satoshi Nishigaki +1 more | 1996-02-20 |
| 5489496 | Electrophotographic photoconductor and a method for forming the same | Satoshi Katayama, Satoshi Nishigaki, Kazuhiro Emoto, Kazushige Morita, Yoshimi Kojima +1 more | 1996-02-06 |
| 5393636 | Process for producing toner for the development of an electric image | Jun Sugita, Kazushige Morita, Satoshi Katayama, Satoshi Nishigaki, Kazuhiro Emoto | 1995-02-28 |
| 5116706 | 1,2,4,5-benzoylenebis(naphtho[1,8-de]pyrimidine) compounds and their use in photosensitive layers | Yoshimi Kojima, Satoshi Katayama, Yoshihide Shimoda, Eiji Imada | 1992-05-26 |
| 4963451 | 1,2,4,5-benzoylenebis(anthraquinone[1,2-d]imidazole) compounds and photosensitive members containing them | Satoshi Katayama, Yoshihide Shimoda, Eiji Imada, Shuhei Tsuchimoto | 1990-10-16 |
| 4908457 | 1,2,4,5-benzoylenebis(anthraquinone[1,2-d]imidazole) compounds | Satoshi Katayama, Yoshihide Shimoda, Eiji Imada, Shuhei Tsuchimoto | 1990-03-13 |
| 4883733 | Electrophotographic printing process using photochromic compound | Eiji Imada, Yoshimi Kojima, Shuhei Tsuchimoto | 1989-11-28 |
| 4715121 | Grip scissors | Makoto Sugiyama, Naoyoshi Machida, Yoshiichi Murai | 1987-12-29 |