Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7288354 | Toner | Shuhei Moribe, Nobuyuki Okubo, Tsutomu Onuma, Koji Nishikawa, Takashige Kasuya | 2007-10-30 |
| 7273686 | Toner | Tsutomu Onuma, Nobuyuki Okubo, Takashige Kasuya, Koji Nishikawa, Shuhei Moribe | 2007-09-25 |
| 6881527 | Toner, and process cartridge | Shuhei Moribe, Hirohide Tanikawa, Hiroshi Yusa, Takashige Kasuya, Yoshihiro Ogawa +1 more | 2005-04-19 |