Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601475 | Carrier and developing agent for electrophotography | Takeshi Katoh, Toshihisa Ishida, Yoshinori Urata, Takeshi Takayama, Mitsuhiro Hasegawa | 2009-10-13 |
| 7455945 | Coated carrier and two-component developing agent | Takeshi Katoh, Yoshinori Urata | 2008-11-25 |
| 7206539 | Non-magnetic single component developing device | Akihiko Kawahara, Tadayuki Sawai, Toru Nishikawa | 2007-04-17 |