Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829457 | Driving apparatus and image formation apparatus using the driving apparatus | Takahiko Ryuzaki, Norio Hokari, Satoru Nishikawa, Susumu Kibayashi, Yoshihiko Mitamura +1 more | 2004-12-07 |
| 5392339 | Telephone transfer apparatus using a special signal for transfer in facsimile communication | Nobukiyo Sakai, Tadashi Ishikawa, Takashi Sakayama, Takashi Nakajima | 1995-02-21 |
| 5343142 | Sheet size detection device | Toshinori Sasaki, Akira Kanazawa, Kenji Hara, Tomoo Fukao, Masahiko Ishizuka +2 more | 1994-08-30 |
| 5289532 | Facsimile apparatus providing facsimile transmission with forwardable voice communication | Tadashi Ishikawa, Takashi Sakayama, Nobukiyo Sakai, Takashi Nakajima | 1994-02-22 |