Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7288348 | Color toner | Kazuhiko Hayami, Tetsuya Ida, Nozomu Komatsu, Yasuhiro Ichikawa, Akira Hashimoto +5 more | 2007-10-30 |
| 7279262 | Magnetic carrier and two-component developer | Takayuki Itakura, Takakuni Kobori, Koh Ishigami, Nobuyoshi Sugahara, Yoshinobu Baba +1 more | 2007-10-09 |
| 7272348 | Developing method using a developer with a specified degree of compression and shearing stress | Naoki Okamoto, Koh Ishigami, Nobuyoshi Sugahara, Yoshinobu Baba, Takayuki Itakura | 2007-09-18 |
| 7147981 | Toner | Masami Fujimoto, Takakuni Kobori, Masaaki Taya | 2006-12-12 |
| 7147980 | Toner and image forming apparatus | Takayuki Itakura, Takaaki Kotaki, Yasuhiro Ichikawa, Takaaki Kaya, Wakashi Iida +3 more | 2006-12-12 |
| 6670087 | Toner, image-forming apparatus, process cartridge and image forming method | Masaaki Taya, Takakuni Kobori, Masami Fujimoto | 2003-12-30 |
| 6653036 | Magnetic toner and image forming method | Hirohide Tanikawa, Masami Fujimoto, Takakuni Kobori | 2003-11-25 |
| 6620860 | Friction material | Katsuya Okayama, Yukinori Yamashita | 2003-09-16 |
| 6235441 | Positively chargeable toner, image forming method and image forming apparatus | Hirohide Tanikawa, Masami Fujimoto, Takakuni Kobori | 2001-05-22 |
| 6203959 | Toner | Hirohide Tanikawa, Masami Fujimoto, Takakuni Kobori | 2001-03-20 |
| 6156471 | Toner and image forming method | Takakuni Kobori, Hirohide Tanikawa, Masami Fujimoto | 2000-12-05 |
| 6120961 | Toner for developing electrostatic images | Hirohide Tanikawa, Masami Fujimoto, Tsutomu Onuma | 2000-09-19 |
| 6020102 | Positive-chargeable toner, image forming method and apparatus unit | Masami Fujimoto, Hirohide Tanikawa, Tsutomu Onuma | 2000-02-01 |
| 5968701 | Toner and image forming method | Tsutomu Onuma, Hirohide Tanikawa, Masami Fujimoto | 1999-10-19 |
| 5641444 | Method of manufacturing disk brake pad | Yukinori Yamashita, Kazuhiko Mizuguchi | 1997-06-24 |
| 4939119 | Process for producing a superconducting article | Kouichi Iwata, Shuji Yazu, Tetsuji Jodai | 1990-07-03 |