Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5561506 | Developing device for an image forming apparatus having a developer normalizing mechanism independent of a developing mechanism | — | 1996-10-01 |
| 5436647 | Color image forming apparatus | — | 1995-07-25 |
| 5204716 | Side-free recording apparatus | Katsuo Sakai | 1993-04-20 |
| 5162859 | Image forming apparatus capable of creating duplex mixed full color and black/white copies and delivering copy sets on page-sequential order | Tatsuo Hirono, Yasunori Kawaishi | 1992-11-10 |
| 5160969 | Image forming apparatus having a separate black developer stored for a color image | Kenichi Mizuma, Hideya Furuta, Noriyuki Kimura, Shinju Nagatsuna, Mitsuru Mamizuka +6 more | 1992-11-03 |
| 5159392 | Image forming apparatus for forming an image on one or both sides of a recording medium | Yasunori Kawaishi, Tatsuo Hirono | 1992-10-27 |
| 5142339 | Image recorder with variable fuser nip entry position | Yasunori Kawaishi, Tatsuo Hirono | 1992-08-25 |
| 5032904 | Color image processing apparatus | Kazuo Murai, Kenji Hashimoto | 1991-07-16 |
| 5010372 | Black-and-white and color copier operable at different processing speeds | Masayoshi Watanuki, Satoru Maeno, Masato Ohkuni | 1991-04-23 |
| 4939546 | Illuminating device for copier | Yukio Noguchi | 1990-07-03 |
| 4928144 | Developing device for a color image forming apparatus | Susumu Wagi | 1990-05-22 |
| 4872037 | Image forming apparatus and control system therefor | Tosio Nakahara, Masayosi Watanuki, Tadahide Sawamura | 1989-10-03 |
| 4866478 | Illuminating device for a color copier | Nobuyuki Sato, Yukio Noguchi | 1989-09-12 |
| 4864367 | Image transferring device for a copier | Tosio Nakahara | 1989-09-05 |
| 4864358 | Color image forming apparatus | — | 1989-09-05 |
| 4862214 | Image forming apparatus | Tosio Nakahara | 1989-08-29 |
| 4835582 | Device for driving a photoconductive element of an electrophotographic copier etc. | Toshio Nakahara | 1989-05-30 |
| 4733269 | Control system for color copier | Tadahide Sawamura | 1988-03-22 |
| 4723146 | Color electrophotographic copying apparatus | — | 1988-02-02 |
| 4422405 | Color electrostatographic apparatus | Tosio Nakahara, Hidetoshi Yano | 1983-12-27 |
| 4277162 | Electrophotographic apparatus comprising density sensor means | Kouji Yamanobe | 1981-07-07 |
| 4267201 | Magnetic brush development apparatus and method | Tosio Nakahara, Hidetoshi Yano | 1981-05-12 |
| 4239374 | Electrostatographic apparatus comprising automatic document type determination means | Susumu Tatsumi, Masumi Ikesue, Masao Hosaka | 1980-12-16 |