Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717636 | Electrophotographic photosensitive member containing polyvinylarylal | Hideyuki Takahashi, Masataka Yamashita, Minoru Mabuchi | 1988-01-05 |
| 4702982 | Electrophotographic photosensitive member comprising disazo pigment | Takao Takiguchi, Masataka Yamashita, Shoji Umehara, Shozo Ishikawa | 1987-10-27 |
| 4666809 | Electrophotographic photosensitive member | Masataka Yamashita | 1987-05-19 |
| 4666810 | Photosensitive member for electrophotography comprising azo pigments | Shoji Umehara, Takao Takiguchi, Masataka Yamashita, Shozo Ishikawa | 1987-05-19 |
| 4615965 | Method of making photoconductive film and electrophotographic photosensitive member | Hideyuki Takahashi | 1986-10-07 |
| 4615963 | Electrophotographic photosensitive member and preparation of photoconductive composition therefor | Hideyuki Takahashi | 1986-10-07 |
| 4610943 | Electrophotographic photosensitive member contains disazo photoconductive compound | Takao Takiguchi, Hajime Miyazaki, Shozo Ishikawa | 1986-09-09 |
| 4550638 | Portable keyboard-type musical instrument | Kenkichi Kaneko, Takeshi Hattori, Kensaku Hakamata, Satoru Hayashi, Takayuki Goshima | 1985-11-05 |
| 4427753 | Electrophotographic photosensitive member with disazo or trisazo compound | Naoto Fujimura, Takashi Tanaka, Takeshi Fujita, Norie Takebayashi, Yoshio Takasu +1 more | 1984-01-24 |
| 4378721 | Pickup apparatus for an electric string type instrument | Kenkichi Kaneko, Katsuyuki Tanaka, Satoru Hayashi, Kensaku Hakamada, Shinji Tagaki +1 more | 1983-04-05 |
| 4287277 | Hologram recording material | Katsuhiko Nishide | 1981-09-01 |
| 4258111 | Hologram and method of production thereof with photo-crosslinkable polymers | Katsuhiko Nishide | 1981-03-24 |
| 4201441 | Hologram and method of production thereof | Koujiro Yokono, Takashi Tanaka, Shigeo Toganou, Hiroyoshi Kishi, Katsuhiko Nishide | 1980-05-06 |