Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11106147 | Electrophotographic photoconductor | — | 2021-08-31 |
| 9904234 | Electrophotographic image forming method | — | 2018-02-27 |
| 7785559 | Method of forming hypobromous acid in aqueous system | Zenichi Nishi, Naoya Okamoto | 2010-08-31 |
| 5349426 | Toner guide roller for image-forming process and apparatus applied therewith | Eiichi Sakai, Yoshiaki Takei | 1994-09-20 |
| 4952470 | Electrophotographic photosensitive member | Kiyoshi Tamaki, Yoshihiko Etoh, Yoshiaki Takei | 1990-08-28 |
| 4888262 | Image forming method | Kiyoshi Tamaki, Yoshihiko Etoh, Yoshiaki Takei | 1989-12-19 |