Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10933741 | Vehicular propeller shaft | Kouki Kawarada, Atsushi Mori, Atsuo Mikazuki | 2021-03-02 |
| 10767686 | Vehicular propeller shaft | Atsuo Mikazuki, Kohki Kawarada, Atsushi Mori | 2020-09-08 |
| 8233016 | Image forming apparatus, and exposure control method therefor | Tetsuya Sakai, Katsuyuki Hirata, Takashi Harashima, Toshio Tsuboi | 2012-07-31 |
| 7840148 | Image forming apparatus and method for detecting separated state of transfer member | Masaki Tanaka, Katsuyuki Hirata, Mitsuru Obara, Toshio Tsuboi | 2010-11-23 |
| 7809320 | Image forming apparatus including a toner guide member | Yoshiki Nakane, Toshikazu Suzaki | 2010-10-05 |
| 7697856 | Image forming apparatus and method for detecting separated state of transfer unit | Toshio Tsuboi, Masaki Tanaka, Mitsuru Obara, Katsuyuki Hirata | 2010-04-13 |
| 7181148 | Image forming apparatus and device for determining the density and position of a toner pattern | Tetsuya Sakai, Katsuyuki Hirata, Hironori Akashi, Takashi Harashima, Masaki Tanaka | 2007-02-20 |
| 7149439 | Method and device for estimating toner concentration and image forming apparatus equipped with such device | Katsuyuki Hirata, Tetsuya Sakai, Hironori Akashi, Toshio Tsuboi, Takashi Harashima +1 more | 2006-12-12 |
| 5652948 | Image forming apparatus | Genta Sakaguchi, Toshihiko Kumon, Hitoshi Sekino, Kazuyoshi Hara | 1997-07-29 |