Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9304428 | Full-color image-forming method | Shigeto Tamura | 2016-04-05 |
| 8728689 | Full-color image-forming method | Shigeto Tamura | 2014-05-20 |
| 8551680 | Toner | Atsushi Tani, Tsuneyoshi Tominaga | 2013-10-08 |
| 8383313 | Toner | Tsuneyoshi Tominaga | 2013-02-26 |
| 8372573 | Toner | Atsushi Tani, Tsuneyoshi Tominaga | 2013-02-12 |
| 7943281 | Black toner | Takaaki Kaya, Shigeto Tamura, Yayoi Tazawa, Ryoichi Fujita, Yuichi Yajima | 2011-05-17 |
| 7858282 | Toner | Tsuneyoshi Tominaga | 2010-12-28 |
| 7718338 | Charge control resin, and toner | Norikazu Fujimoto, Shigeto Tamura, Tetsuya Yano | 2010-05-18 |
| 7381509 | Toner kit, deep-color cyan toner, pale-color cyan toner, and image forming method | Takeshi Ikeda, Tomohito Ishida, Nobuyuki Itoh | 2008-06-03 |
| 7343112 | Image forming apparatus using hypochromatic toner and hyperchromatic toner | Nobuyuki Ito, Takeshi Ikeda, Yukio Nagase, Isami Itoh, Tomohito Ishida | 2008-03-11 |
| 7300737 | Process for producing toner | Koji Abe | 2007-11-27 |
| 7288356 | Toner kit, deep-color cyan toner, pale-color cyan toner, and image forming method | Takeshi Ikeda, Tomohito Ishida, Nobuyuki Itoh | 2007-10-30 |
| 7250241 | Toner and process for producing toner | Koji Abe | 2007-07-31 |
| 7049039 | Coloring agent for toner, and toner | Yayoi Tazawa | 2006-05-23 |
| 6996358 | Toner kit, toner, method for forming an image, and image forming apparatus | Takeshi Ikeda, Yukio Nagase, Nobuyuki Itoh, Isami Itoh, Tomohito Ishida | 2006-02-07 |
| 6879788 | Image forming apparatus with density detecting means | Nobuyuki Ito, Takeshi Ikeda, Yukio Nagase, Isami Itoh, Tomohito Ishida | 2005-04-12 |
| 6808855 | Process for producing toner | Hitoshi Itabashi, Yayoi Tazawa | 2004-10-26 |
| 6803932 | Image forming apparatus | Isami Itoh, Takeshi Ikeda, Yukio Nagase, Nobuyuki Itoh, Tomohito Ishida | 2004-10-12 |
| 6610454 | Toner and image forming method | Akira Hashimoto, Tsutomu Kukimoto, Manabu Ohno, Tsuyoshi Takiguchi, Satoshi Handa +2 more | 2003-08-26 |
| 6566028 | Toner, and process for producing toner | Yayoi Tazawa, Takeshi Ikeda, Yoshinobu Baba, Hitoshi Itabashi, Yuzo Tokunaga | 2003-05-20 |
| 6358658 | Toner, and process for producing toner | Yayoi Tazawa, Takeshi Ikeda, Yoshinobu Baba, Hitoshi Itabashi, Yuzo Tokunaga | 2002-03-19 |
| 6337169 | Toner and image forming method using the toner | Akira Hashimoto, Satoshi Yoshida, Manabu Ohno, Satoshi Handa, Keiji Komoto | 2002-01-08 |
| 6177223 | Toner and image forming method using the toner | Akira Hashimoto, Satoshi Yoshida, Manabu Ohno, Satoshi Handa, Keiji Komoto | 2001-01-23 |
| 6124070 | Toner and process for producing toner | Yoshinobu Baba, Tetsuro Fukui, Hiroshi Aoto, Hitoshi Itabashi | 2000-09-26 |
| 6106990 | Process for producing toner particles | Yayoi Tazawa, Yoshinobu Baba, Hitoshi Itabashi, Yuzo Tokunaga | 2000-08-22 |