Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395843 | Electrostatic image developing toner | Hiroshi Maekawa, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima | 2002-05-28 |
| 6284423 | Electrostatic image developing toner | Hiroshi Maekawa, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima | 2001-09-04 |
| 5427883 | Toner composition for electrophotography | Akira Misawa, Keiichi Ishikawa, Kazuo Hagiwara, Masaaki Shin | 1995-06-27 |
| 5279915 | Toner composition for electrophotography | Kazuo Hagiwara, Akira Misawa, Keiichi Ishikawa, Masaaki Shin | 1994-01-18 |
| 5202212 | Toner composition for electrophotography | Masaaki Shin, Kazuo Hagiwara, Akira Misawa, Keiichi Ishikawa | 1993-04-13 |
| 5037715 | Resins for toner of electrophotography and method for manufacturing the same | Kazuo Hagiwara, Akira Misawa, Masaaki Shin | 1991-08-06 |
| 4981923 | Resins for toner of electrophotography and method for manufacturing the same | Kazuo Hagiwara, Akira Misawa, Masaaki Shin | 1991-01-01 |
| 4833057 | Toner composition for the electrophotography | Akira Misawa, Hisatomo Sato, Keiichi Ishikawa, Masaaki Shin, Akio Fujiwara +2 more | 1989-05-23 |