Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7967450 | Light amount control device and projector | Fumio Koyama | 2011-06-28 |
| 4797344 | Encapsulated toner having shell with first vinyl polymer with Mn of 2000-225000 and second vinyl polymer with Mn of 1000-15000 | Toshiaki Nakahara, Ichiro Ohsaki, Hisayuki Ushiyama, Masuo Yamazaki, Yasuhide Goseki +1 more | 1989-01-10 |
| 4430411 | Developing method for electrostatic image | Yasuyuki Tamura, Tohru Takahashi, Yasuo Mitsuhashi, Seiji Tomari | 1984-02-07 |
| 4418137 | Electrophotographic process | Yasuo Mitsuhashi | 1983-11-29 |
| 4340660 | Toner for development having crosslinked polymers | Yoshio Takasu, Hiroshi Fukumoto, Takashi Hino, Masaki Uchiyama, Yasuo Mitsuhashi | 1982-07-20 |
| 4299900 | Electrostatic image magnetic developing process | Yasuo Mitsuhashi, Yoshio Takasu, Hiroshi Fukumoto, Takashi Hino, Masaki Uchiyama | 1981-11-10 |
| 4206064 | Negatively charged toner for developing electrostatic images containing metal complex of salicyclic acid compound as charge control agent | Isamu Maki | 1980-06-03 |
| 4206247 | Electrophotographic process | Yasuo Mitsuhashi | 1980-06-03 |