Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6188857 | Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit | Toshio Yamanaka, Yoshiharu Yoneda, Yasuo Kitabatake, Hideaki Kadowaki, Yoshikazu Harada | 2001-02-13 |
| 6161446 | Image forming apparatus provided with photoreceptor unit with internal gear unit, the photoreceptor unit with internal gear, and internal gear unit | Toshio Yamanaka, Yoshiharu Yoneda, Yasuo Kitabatake, Hideaki Kadowaki, Yoshikazu Harada | 2000-12-19 |
| 6014920 | Paper-punching device for use in a image-forming apparatus | Toshio Yamanaka, Masafumi Okumura, Masashi Hirai, Kyousuke Taka, Kinji Uno +2 more | 2000-01-18 |
| 5927148 | Image forming apparatus equipped with photoreceptor having an internal gear | Toshio Yamanaka, Yoshiharu Yoneda, Yasuo Kitabatake, Hideaki Kadowaki, Yoshikazu Harada | 1999-07-27 |
| 5839336 | Paper-punching device for use in an image-forming apparatus | Toshio Yamanaka, Masafumi Okumura, Masashi Hirai, Kyousuke Taka, Kinji Uno +2 more | 1998-11-24 |
| 5315360 | Copying machine for copying a one-side subject copy on both sides of a copying sheet | Yuji Okamoto | 1994-05-24 |
| 5190274 | Sheet treatment device with a variable time period for jamming indication | Koji Kamamoto, Kazutoshi Yamamoto | 1993-03-02 |
| 4982241 | Automatic original document feeder | Yuji Okamoto, Masato Tamehira | 1991-01-01 |