Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5521044 | Electrophotosensitive material | Nariaki Muto, Keisuke Sumida, Hiroaki Iwasaki, Tsuneo Oki, Yasuyuki Hanatani +1 more | 1996-05-28 |
| 5424157 | Electrophotosensitive material containing disazo compound as charge-generating agent | Yasufumi Mizuta | 1995-06-13 |
| 5336576 | Electrophotographic photosensitive member having a photosensitive layer comprising the azo compound | Yasuyuki Hanatani, Hiroaki Iwasaki, Yasufumi Mizuta, Akihiko Kawahara | 1994-08-09 |
| 5288576 | Electrophotographic member having an azo compound with diphenoquinone | Yasuyuki Hanatani, Hiroaki Iwasaki, Yasufumi Mizuta, Akihiko Kawahara | 1994-02-22 |
| 5274084 | Bisazo compounds which contain a diphenoquinone tetraazo component and an electrophotographic photosensitive member having a photosensitive layer comprising the bisazo compound | Yasuyuki Hanatani, Hiroaki Iwasaki, Yasufumi Mizuta, Akihiko Kawahara | 1993-12-28 |
| 5223364 | Electrophotographic photoconductor and a method for preparing the same | Tatsuo Maeda, Nariaki Muto | 1993-06-29 |
| 5213923 | Photosensitive material for electrophotography comprising a charge transport layer comprising an organopolysilane and diphenoquinone | Masaaki Yokoyama, Yasuhiro Yamaguchi | 1993-05-25 |
| 5168026 | Bis-azo compound and electrophotographic photosensitive member with a light receiving layer containing said bis-azo compound | — | 1992-12-01 |
| 5106536 | .alpha.-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same | Nariaki Mutou, Tooru Nakazawa, Tatsuo Maeda | 1992-04-21 |
| 4971877 | .alpha.-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same | Nariaki Mutou, Tooru Nakazawa, Tatsuo Maeda | 1990-11-20 |
| 4877702 | Electrophotographic sensitive material | Nariaki Mutou, Tooru Nakazawa | 1989-10-31 |