Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6011119 | Resin composition for electrophotographic toner, and toner | Katsuru Matsumoto, Eishi Tanaka, Junko Tobita | 2000-01-04 |
| 5677409 | Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani, Tetsunosuke Shiomura | 1997-10-14 |
| 5658999 | Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax | Norihide Inoue, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani, Tetsunosuke Shiomura | 1997-08-19 |
| 5573881 | Toner composition for electrophotography | Shoji Kawasaki, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama, Katuo Uramoto | 1996-11-12 |
| 5502110 | Resin composition for electrophotographic toner | Katsuru Matsumoto, Kenji Uchiyama, Shoji Kawasaki, Tamami Fukui, Katsuo Uramoto | 1996-03-26 |
| 5468585 | Resin composition for use in an electrophotographic toner | Katsuru Matsumoto, Shoji Kawasaki, Kenji Uchiyama, Katsuo Uramoto, Tamami Fukui | 1995-11-21 |
| 5389483 | Electrophotographic toner having two ethylene polymers | Shoji Kawasaki, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama | 1995-02-14 |
| 5362595 | Electrophotographic toner production process | Masaaki Shin, Shoji Kawasaki, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1994-11-08 |
| 5266434 | Electrophotographic toner composition | Kenji Uchiyama, Shoji Kawasaki, Hisatomo Sato, Hiromi Akiyama | 1993-11-30 |
| 5241019 | Binder for dry toner | Tateo Otsuki, Kazuya Tsukamoto | 1993-08-31 |
| 5230978 | Electrophotographic toner composition | Shoji Kawasaki, Kenji Uchiyama, Hisatomo Sato, Hiromi Akiyama | 1993-07-27 |
| 5084368 | Electrophotographic toner | Masaaki Shin, Shoji Kawasaki, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1992-01-28 |
| 4963456 | Electrophotographic toner | Masaaki Shin, Keiichi Ishikawa, Akira Misawa | 1990-10-16 |