Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6241234 | Sheet processing apparatus and image forming apparatus using same | Yoshifumi Takehara, Kazuyuki Iwamoto, Kenichi Hayashi, Wataru Kawata | 2001-06-05 |
| 5992838 | Sheet processing apparatus and image forming apparatus | — | 1999-11-30 |
| 5932722 | Hydroxygallium phthalocyanine compound, production process therefor and electrophotographic photosensitive member using the compound | Katsuaki Hirai, Noriyoshi Ueda, Yoshifumi Takehara, Masaaki Sato, Katsuhito Kato +1 more | 1999-08-03 |
| 5911414 | Sheet transport apparatus having a hole puncher, and sheet processing device | Katsuhito Kato, Noriyoshi Ueda, Yoshifumi Takehara, Kazuyuki Iwamoto, Kenichi Hayashi +1 more | 1999-06-15 |
| 5897250 | Sheet processing apparatus | Katsuaki Hirai, Noriyoshi Ueda, Yoshifumi Takehara, Masaaki Sato, Katsuhito Kato +1 more | 1999-04-27 |