Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968574 | Toner for electrophotography | Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Hirozo Funaki, Minoru Kohara | 1990-11-06 |
| 4657837 | Toner for developing an electrostatically charged image | Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Shinichiro Yasuda | 1987-04-14 |
| 4564573 | Electrostatic image forming toner | Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Isao Furuta, Minoru Tsuneyoshi | 1986-01-14 |
| 4514487 | Method for manufacturing toner for electrophotography | Takahira Kasuya, Hiroyuki Takagiwa, Goichi Yamakawa | 1985-04-30 |
| 4473628 | Toner for developing of electrostatic latent image | Takahira Kasuya, Goichi Yamakawa, Makoto Tomono, Isao Furuta, Minoru Tsuneyoshi | 1984-09-25 |