Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7128090 | Water-hammer preventing unit for check valve | Akira Muroi | 2006-10-31 |
| 6122469 | Image forming apparatus including a preventing mechanism for preventing a developing unit from rotating | Satoshi Hatori, Kazuyuki Sugihara, Tomoji Ishikawa, Yoshiyuki Kimura, Kenji Maeda | 2000-09-19 |
| 5784669 | Toner replenishing device for an image forming apparatus | Satoshi Hatori, Leo Munakata | 1998-07-21 |
| 5270783 | Image forming equipment having improved toner sensing | Takashi Bisaiji, Kouji Hayashi, Noboru Sawayama, Takeyoshi Sekine, Takayuki Maruta +5 more | 1993-12-14 |
| 5227842 | Electrophotographic image forming apparatus which controls developer bias based on image irregularity | Kouji Hayashi, Takashi Bisaiji, Norimitsu Kikuchi, Takeyoshi Sekine, Noboru Sawayama +4 more | 1993-07-13 |
| 4565914 | Method and apparatus for demounting a spot welded metal plate | Hidenori Suzaki, Masanori Maeda, Koji Inaoka | 1986-01-21 |