Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204202 | Electrophotographic photosensitive element comprising a protective layer with a porous surface impregnated with lubricant | Fuminori Ishikawa, Kunihiro Tamahashi, Masatoshi Wakagi, Masanobu Hanazono, Mitsuyoshi Shoji +4 more | 1993-04-20 |
| 5073466 | Electrophotographic member containing a fluorine-containing lubricating agent and process for producing the same | Fuminori Ishikawa, Kunihiro Tamahashi, Masatoshi Wakagi, Masanobu Hanazono, Mitsuyoshi Shoji +5 more | 1991-12-17 |
| 4791040 | Multilayered electrophotographic photosensitive member | Makoto Fujikura, Toshiyuki Ohno, Kunihiro Tamahashi, Mitsuo Chigasaki, Yasuo Shimamura | 1988-12-13 |
| 4430404 | Electrophotographic photosensitive material having thin amorphous silicon protective layer | Akira Hosoya, Kunihiro Tamahashi, Atsushi Kakuta, Yasuki Mori, Katsuhito Suzuki +1 more | 1984-02-07 |
| 4405703 | Electrophotographic plate having an age-hardened aluminum substrate and process for producing the same | Kunihiro Tamahashi, Akira Hosoya, Atsushi Kakuta, Yasuki Mori, Hirosada Morishita | 1983-09-20 |