Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601475 | Carrier and developing agent for electrophotography | Takeshi Katoh, Toshihisa Ishida, Kazuya Korematu, Takeshi Takayama, Mitsuhiro Hasegawa | 2009-10-13 |
| 7455945 | Coated carrier and two-component developing agent | Takeshi Katoh, Kazuya Korematu | 2008-11-25 |
| 7393622 | Two-component developing agent for electrophotography | Takeshi Katoh | 2008-07-01 |
| 6177224 | Method of manufacturing electrophotographic toner | Tatuo Imafuku, Tadashi Nakamura, Hitoshi Nagahama, Yasuharu Morinishi, Satoshi Ogawa | 2001-01-23 |
| 6110635 | Toner for electrophotography and a production method thereof | Tatsuo Imafuku, Toshihisa Ishida, Takahiro Bito, Tadashi Nakamura, Yoshiaki Akazawa +2 more | 2000-08-29 |
| 6066423 | Toner for electrophotography | Tatsuo Imafuku, Toshihisa Ishida, Takahiro Bito, Nobuyasu Honda | 2000-05-23 |
| 6004713 | Toner, Developer, and process for producing the same | Hitoshi Nagahama, Yasuharu Morinishi, Satoshi Ogawa, Toshihisa Ishida, Tadashi Nakamura +1 more | 1999-12-21 |
| 5799881 | Method and system of producing toner | Takao Yoneda, Yoshiaki Akazawa, Yasuharu Morinishi, Nobuhiko Nakano, Tadashi Nakamura +2 more | 1998-09-01 |
| 5358819 | Developer for electrophotography | Toshihisa Ishida, Norio Tateishi, Shigeaki Tasaka, Naotaka Funayama | 1994-10-25 |