Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833057 | Toner composition for the electrophotography | Hisatomo Sato, Keiichi Ishikawa, Masaaki Shin, Akio Fujiwara, Kazuo Hisamatsu +2 more | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833057 | Toner composition for the electrophotography | Hisatomo Sato, Keiichi Ishikawa, Masaaki Shin, Akio Fujiwara, Kazuo Hisamatsu +2 more | 1989-05-23 |