Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6160969 | Image forming apparatus with a voltage applying unit for image transfer | Kouji Ishigaki, Haruji Mizuishi, Masaru Tanaka, Hiroyuki Ohkaji, Hiroshi Mizusawa +3 more | 2000-12-12 |
| 6085062 | Electrophotographic image forming apparatus | Haruji Mizuishi, Ken Amemiya, Hiroshi Mizusawa, Hiroyuki Ohkaji, Mayumi Ohori +2 more | 2000-07-04 |
| 6055388 | Image forming apparatus and method for obtaining appropriate toner density | Shigeru Watanabe, Masaru Tanaka, Haruji Mizuishi, Toshitaka Yamaguchi, Takeo Suda +3 more | 2000-04-25 |
| 6006050 | Image forming method and apparatus for controlling amount of supplied toner or agitating time | Shigeru Watanabe, Masaru Tanaka, Haruji Mizuishi, Toshitaka Yamaguchi, Hiroshi Yoshinaga +3 more | 1999-12-21 |
| 5815767 | Image forming apparatus | Akio Kutsuwada, Masaru Tanaka, Takeo Suda, Mitsuru Sato, Toshitaka Yamaguchi | 1998-09-29 |
| 5678125 | Image forming apparatus | Akio Kutsuwada, Masaru Tanaka, Takeo Suda, Mitsuru Sato, Toshitaka Yamaguchi | 1997-10-14 |
| 5557382 | Toner replenishing device for a developing device | Takeshi Saito, Akio Kutsuwada, Noboru Kusunose, Shigeru Yoshiki | 1996-09-17 |