Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7026088 | Master batch and toner for use in electrophotography | Sayaka Fujita, Toshihiko Murakami, Eiji Tenjiku | 2006-04-11 |
| 6011119 | Resin composition for electrophotographic toner, and toner | Nobuhiro Hirayama, Eishi Tanaka, Junko Tobita | 2000-01-04 |
| 5502110 | Resin composition for electrophotographic toner | Nobuhiro Hirayama, Kenji Uchiyama, Shoji Kawasaki, Tamami Fukui, Katsuo Uramoto | 1996-03-26 |
| 5468585 | Resin composition for use in an electrophotographic toner | Nobuhiro Hirayama, Shoji Kawasaki, Kenji Uchiyama, Katsuo Uramoto, Tamami Fukui | 1995-11-21 |