Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6250743 | Tandem type of direct printing apparatus using gating apertures for supplying toner | Toshio Yamaki, Hirokatsu Shimada, Yoshifumi Shibata, Hiroshi Hiraguchi | 2001-06-26 |
| 6250744 | Printing device for propelling printing material onto a recording medium to form images | Hiroshi Hiraguchi, Hirokatsu Shimada, Yoshifumi Shibata, Toshio Yamaki | 2001-06-26 |
| 6244692 | Tandem type of direct printing apparatus and method for making a registration of composite image therein | Hiroshi Hiraguchi, Hirokatsu Shimada, Yoshifumi Shibata, Toshio Yamaki | 2001-06-12 |
| 6241343 | Direct printing apparatus | Hirokatsu Shimada, Toshio Yamaki, Yoshifumi Shibata, Hiroshi Hiraguchi | 2001-06-05 |
| 6231164 | Apparatus and method for direct printing using first and second electrodes to deposit charged particles | Yoshifumi Shibata, Toshio Yamaki, Hirokatsu Shimada, Hiroshi Hiraguchi | 2001-05-15 |
| 6227656 | Depositing charged particles onto a sheet based on distances relative to a print head | Yoshifumi Shibata, Toshio Yamaki, Hirokatsu Shimada, Hiroshi Hiraguchi | 2001-05-08 |
| 6176567 | Direct printing apparatus with automatic cleaning of excess print particles | Toshio Yamaki, Hirokatsu Shimada, Yoshifumi Shibata, Hiroshi Hiraguchi | 2001-01-23 |
| 6151475 | Developing apparatus for preventing deterioration of toner charge quantity and filming of toner | — | 2000-11-21 |
| 5978637 | Image forming apparatus capable of obtaining stable transfer using a particular transfer roller | Tetsuya Sakai, Yasuo Tanaka, Kazuyoshi Hara | 1999-11-02 |
| 5868451 | Storage structure for motor vehicle seat | Koji Kamida, Kunimichi Odagaki | 1999-02-09 |
| 5832336 | Image forming apparatus | Akihiro Kawasaki, Tamotsu Sakuraba, Hiroyuki Maeda | 1998-11-03 |
| 5689777 | Image forming apparatus having contact charger | Masashi Yamamoto, Hitoshi Saito | 1997-11-18 |
| 5587775 | Image forming apparatus with rotating brush for charging | Kazuko Taniguchi, Akihito Ikegawa, Hitoshi Saito | 1996-12-24 |
| 5541717 | Cleaning method for contact charging means in image forming apparatus | Hitoshi Saito, Akihiro Kawasaki, Masashi Yamamoto | 1996-07-30 |
| 5287146 | Contact type charging device having voltage limiter | Yasuo Tanaka, Tateki Oka, Hitoshi Saito | 1994-02-15 |
| 5287152 | Electric charge supplying device and system employing the same | Tateki Oka, Kazuyoshi Hara, Hitoshi Saito, Yasuo Tanaka | 1994-02-15 |
| 5262828 | Developing bias power unit for use in an image forming apparatus | Tateki Oka, Hiroshi Goto, Yasuo Tanaka, Tamotsu Sakuraba, Kazuyoshi Hara +1 more | 1993-11-16 |