Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8320799 | Recycling image forming apparatus | Ryuji Yoshida, Mikio Ishibashi, Nobuyuki Koinuma, Naoyuki Ozaki, Hiroaki Maeda +4 more | 2012-11-27 |
| 6898383 | Image forming apparatus | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2005-05-24 |
| 6628903 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2003-09-30 |
| 6160969 | Image forming apparatus with a voltage applying unit for image transfer | Kouji Ishigaki, Haruji Mizuishi, Masaru Tanaka, Hiroyuki Ohkaji, Kenzou Tatsumi +3 more | 2000-12-12 |
| 6144811 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2000-11-07 |
| 6128449 | Image forming apparatus and method for controlling charging and developing bias voltage | Masaru Tanaka, Haruji Mizuishi, Hiroyuki Okaji, Kenzo Tatsumi, Hiroshi Mizusawa +2 more | 2000-10-03 |
| 6085062 | Electrophotographic image forming apparatus | Haruji Mizuishi, Ken Amemiya, Hiroshi Mizusawa, Hiroyuki Ohkaji, Mayumi Ohori +2 more | 2000-07-04 |