Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8026031 | Toner, vessel with the toner, developer, image forming apparatus and process cartridge and image forming method | Naohiro Watanabe, Yohichiroh Watanabe, Masahide Yamada, Tsunemi Sugiyama, Masahiro Ohki +4 more | 2011-09-27 |
| 7989131 | Toner, developer, image forming method, image forming apparatus, process cartridge, and toner container | Ryota Inoue, Naohiro Watanabe, Masahide Yamada, Akinori Saitoh, Masahiro Ohki +4 more | 2011-08-02 |
| 7939238 | Dry toner and method of preparing same | Hiroshi Yamashita, Tsunemi Sugiyama, Masami Tomita | 2011-05-10 |
| 7879523 | Toner composition and method for manufacturing the toner composition | Hiroshi Yamashita, Masami Tomita, Tsunemi Sugiyama | 2011-02-01 |