Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755363 | Automated biopolymer crystal preparation apparatus | Shozo Fujita, Hachiro Yasuda, Akio Sugama, Naomi Nakane | 1988-07-05 |
| 4522909 | Process for preparing electrostatic developer | Toshiaki Narusawa, Seiji Okada, Kiyohide Muramatsu, Hirofumi Okuyama | 1985-06-11 |
| 4513075 | Developer materials for electrostatic images | Toshiaki Narusawa, Seiji Okada, Kiyohide Muramatsu, Hirofumi Okuyama | 1985-04-23 |
| 4455361 | Process for preparing developer materials for electrostatic images | Toshiaki Narusawa, Seiji Okada, Kiyohide Muramatsu, Hirofumi Okuyama | 1984-06-19 |
| 4454213 | Organic photosensitive material for electrophotography | Seiji Okada, Toshiaki Narusawa, Hirofumi Okuyama | 1984-06-12 |
| 4362801 | Copper phthalocyanine photosensitive material for electrophotography with binder and an oxadiazole | Seiji Okada, Toshiaki Narusawa, Hirofumi Okuyama | 1982-12-07 |
| 4352877 | Electrophotographic developing process using flash fixation and toner therefor | Toshiaki Narusawa, Seiji Okada, Kiyohide Muramatsu, Hirohumi Okuyama | 1982-10-05 |