Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985324 | Electrophotographic photoreceptor | Katsuji Kitatani, Satoshi Hoshi, Hideo Sato, Shigeru Ohno | 1991-01-15 |
| 4977051 | Trisazo electrophotographic photoreceptor | Shigeru Ohno, Katsuji Kitatani, Satoshi Hoshi, Hideo Sato | 1990-12-11 |
| 4973536 | Electrophotographic photoreceptor containing phthalocyanine and hydrazone | Seiji Horie, Hideo Sato | 1990-11-27 |
| 4851322 | Optical recording medium | Yoshio Inagaki, Takanori Hioki, Keiichi Adachi, Yoshiaki Suzuki | 1989-07-25 |
| 4840862 | Photoconductive composition having an azaazulenium salt | Takanori Hioki, Yoshio Inagaki, Seiji Horie | 1989-06-20 |
| 4814245 | Electrophotographic photoreceptor containing a phthalocyanine pigment and a bishydrazone compound | Seiji Horie, Hideo Sato | 1989-03-21 |
| 4752548 | Light-sensitive bisazulenium salt compound compositions and electrophotographic photoreceptors formed therewith | Seiji Horie, Shu Watarai, Hideo Sato | 1988-06-21 |
| 4731315 | Electrophotographic photoreceptor containing a trisazo compound and a charge transport material | Seiji Horie, Hideo Sato | 1988-03-15 |
| 4724192 | Electrophotographic photoreceptor containing a bisstilbene compound | Seiji Horie, Syu Watarai, Hideo Sato | 1988-02-09 |
| 4629672 | Light-sensitive composition having a tetrakisazo compound | Kenji Sano, Seiji Horie, Hideo Sato | 1986-12-16 |
| 4622280 | Disazo compound, and photoconductive composition and electrophotographic photoreceptor containing the same | Kouichi Kawamura, Seiji Horie, Hideo Sato | 1986-11-11 |
| 4619880 | Electrophotographic light sensitive material contains hydrazone compound | Seiji Horie, Hideo Sato | 1986-10-28 |
| 4619881 | Photoconductive composition and electro-photographic light-sensitive material containing a trisazo compound | Seiji Horie, Hideo Sato | 1986-10-28 |
| 4612271 | Photosensitive composition comprising azo compounds | Seiji Horie, Hideo Sato | 1986-09-16 |
| 4598033 | Photoconductive compositions comprising a disazo compound | Kouichi Kawamura, Seiji Horie, Hideo Sato | 1986-07-01 |
| 4568623 | Photoconductive compositions containing novel disazo compounds and electrophotographic photoreceptors using the same | Seiji Horie, Kouichi Kawamura, Hideo Sato | 1986-02-04 |
| 4557988 | Disazo compounds, photoconductive compositions and electrophotographic light-sensitive materials containing the same | Seiji Horie, Kouichi Kawamura, Hideo Sato | 1985-12-10 |
| 4533613 | Disazo compounds and photoconductive composition as well as electrophotographic light sensitive element containing the same | Kouichi Kawamura, Seiji Horie, Hideo Sato | 1985-08-06 |
| 4508805 | Disazo compounds, photoconductive compositions and electrophotographic light-sensitive materials containing the same | Kouichi Kawamura, Seiji Horie, Hideo Sato | 1985-04-02 |
| 4504559 | Disazo compounds and photoconductive composition as well as electrophotographic light sensitive element containing the same | Seiji Horie, Kouichi Kawamura, Hideo Sato | 1985-03-12 |