Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7846630 | Binder resin for toner, toner, and method of manufacturing binder resin for toner | Shuichi Murakami, Yoshihito Hirota | 2010-12-07 |
| 6733942 | Toner composition and method for production thereof | Yuji Emura, Shoji Kawasaki, Hiroshi Matsuoka | 2004-05-11 |
| 6497983 | Toner binder for electrophotography and toner for electrophotography | Tsuyoshi Iwa, Kazuya Sakata, Shoji Kawasaki | 2002-12-24 |
| 5427883 | Toner composition for electrophotography | Akira Misawa, Kazuo Hisamatsu, Keiichi Ishikawa, Kazuo Hagiwara | 1995-06-27 |
| 5370958 | Electrophotographic toner and production process thereof | Kenji Uchiyama, Yasuo Okada | 1994-12-06 |
| 5362595 | Electrophotographic toner production process | Nobuhiro Hirayama, Shoji Kawasaki, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1994-11-08 |
| 5334473 | Continuous method of treating polymer reaction mixture | Nobuki Kobayashi, Yoku Shiraishi, Takashi Yamamoto | 1994-08-02 |
| 5279915 | Toner composition for electrophotography | Kazuo Hagiwara, Akira Misawa, Kazuo Hisamatsu, Keiichi Ishikawa | 1994-01-18 |
| 5202212 | Toner composition for electrophotography | Kazuo Hagiwara, Akira Misawa, Kazuo Hisamatsu, Keiichi Ishikawa | 1993-04-13 |
| 5084368 | Electrophotographic toner | Nobuhiro Hirayama, Shoji Kawasaki, Akira Misawa, Akio Fujiwara, Kenji Uchiyama | 1992-01-28 |
| 5066727 | Resin for toner and toner containing same | Hironori Aizawa, Atsuo Okubo | 1991-11-19 |
| 5037715 | Resins for toner of electrophotography and method for manufacturing the same | Kazuo Hagiwara, Akira Misawa, Kazuo Hisamatsu | 1991-08-06 |
| 5001031 | Electrophotographic toner comprising a color agent and a mixture of vinyl polymers as a binder | Takashi Yamamoto | 1991-03-19 |
| 4981923 | Resins for toner of electrophotography and method for manufacturing the same | Kazuo Hagiwara, Akira Misawa, Kazuo Hisamatsu | 1991-01-01 |
| 4963456 | Electrophotographic toner | Nobuhiro Hirayama, Keiichi Ishikawa, Akira Misawa | 1990-10-16 |
| 4857433 | Electrophotographic toner for high speed electrophotography | Akio Fujiwara, Hiroshi Taniwaki | 1989-08-15 |
| 4849316 | Heat fixing electrophotographic toner containing olefin wax | Shoji Kawaski, Hisatomo Sato, Takashi Yamamoto | 1989-07-18 |
| 4833057 | Toner composition for the electrophotography | Akira Misawa, Hisatomo Sato, Keiichi Ishikawa, Akio Fujiwara, Kazuo Hisamatsu +2 more | 1989-05-23 |
| 4727010 | Electrophotographic process uses toner comprising vinyl copolymer | Akio Fujiwara, Hiroshi Taniwaki | 1988-02-23 |
| 4405671 | Optical information recording disk | Hiroshi Ozawa, Akio Fuziwara, Mitsuyoshi Nakamura, Ichiro Otsuka, Kazuo Sugazaki | 1983-09-20 |