Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733942 | Toner composition and method for production thereof | Yuji Emura, Masaaki Shin, Hiroshi Matsuoka | 2004-05-11 |
| 6497983 | Toner binder for electrophotography and toner for electrophotography | Tsuyoshi Iwa, Kazuya Sakata, Masaaki Shin | 2002-12-24 |
| 5573881 | Toner composition for electrophotography | Nobuhiro Hirayama, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama, Katuo Uramoto | 1996-11-12 |
| 5502110 | Resin composition for electrophotographic toner | Katsuru Matsumoto, Nobuhiro Hirayama, Kenji Uchiyama, Tamami Fukui, Katsuo Uramoto | 1996-03-26 |
| 5468585 | Resin composition for use in an electrophotographic toner | Katsuru Matsumoto, Nobuhiro Hirayama, Kenji Uchiyama, Katsuo Uramoto, Tamami Fukui | 1995-11-21 |
| 5389483 | Electrophotographic toner having two ethylene polymers | Nobuhiro Hirayama, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama | 1995-02-14 |
| 5362595 | Electrophotographic toner production process | Nobuhiro Hirayama, Masaaki Shin, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1994-11-08 |
| 5266434 | Electrophotographic toner composition | Nobuhiro Hirayama, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama | 1993-11-30 |
| 5230978 | Electrophotographic toner composition | Nobuhiro Hirayama, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama | 1993-07-27 |
| 5084368 | Electrophotographic toner | Nobuhiro Hirayama, Masaaki Shin, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1992-01-28 |
| 4833057 | Toner composition for the electrophotography | Akira Misawa, Hisatomo Sato, Keiichi Ishikawa, Masaaki Shin, Akio Fujiwara +2 more | 1989-05-23 |