Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6740463 | Method for producing toner by mixing colored particles and outer-additive by mixer with stirrer of high speed rotation | Kazunori Shigemori, Yoshihiro Makuta, Hirosi Yamamoto, Nobuyasu Ota, Kazuhiro Sato +1 more | 2004-05-25 |
| 6534233 | Method for producing toner | Hiroshi Yamamoto, Kazuhiro Sato, Makoto Watanabe | 2003-03-18 |
| 6054245 | Electrophotographic developer and producing method thereof | Hiroshi Yamamoto | 2000-04-25 |
| 6025106 | Electrophotographic developer and producing method thereof | Hiroshi Yamamoto | 2000-02-15 |