Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350169 | Tray apparatus | Masakazu Hiroi, Akimitsu Hoshi, Tadayuki Kitajima, Nobutaka Uto | 1994-09-27 |
| 5316287 | Tray apparatus | Masakazu Hiroi, Akimitsu Hoshi, Tadayuki Kitajima, Nobutaka Uto | 1994-05-31 |
| 5215300 | Tray apparatus | Masakazu Hiroi, Akimitsu Hoshi, Tadayuki Kitajima, Nobutaka Uto | 1993-06-01 |
| 4917364 | Sheet processing apparatus | Nobutaka Uto, Masakazu Hiroi, Akimitsu Hoshi | 1990-04-17 |
| 4883265 | Tray apparatus | Nobutaka Uto, Masakazu Hiroi, Akimitsu Hoshi | 1989-11-28 |
| 4717134 | Sheet folding apparatus | Nobutaka Uto, Masakazu Hiroi, Akimitsu Hoshi | 1988-01-05 |
| 4521099 | Copying apparatus | Hajime Katayama, Hiroshi Nitanda, Tateki Nagaoka, Hirotoshi Kishi, Yusaku Takada +2 more | 1985-06-04 |
| 4261660 | Surface potentiometer for use in an electrostatic copier | Koji Suzuki, Hajime Katayama | 1981-04-14 |