Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5177536 | Developing apparatus having a magnetic seal | Akira Watanabe, Masahiro Itoh, Yuji Sakemi | 1993-01-05 |
| 5049472 | Method and apparatus of recording image | Nagao Hosono, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami, Yuji Sakemi +1 more | 1991-09-17 |
| RE33633 | Method and device for charging or discharging a member | Nagao Hosono, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami | 1991-07-09 |
| 4922392 | An original reading apparatus with shielding | Hidemi Egami, Katsuo Saito, Katsuya Oikawa | 1990-05-01 |
| 4914737 | Image forming apparatus | Koji Amemiya, Takeshi Menjo, Takashi Hasegawa | 1990-04-03 |
| 4912515 | Image forming apparatus | Koji Amemiya, Takeshi Menjo, Takashi Hasegawa | 1990-03-27 |
| 4898798 | Photosensitive member having a light receiving layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tohru Den, Susumu Ito, Keiji Hirabayashi, Keiko Ikoma +6 more | 1990-02-06 |
| 4892800 | Photosensitive member having a photoconductive layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tatsuo Takeuchi, Yoshihiro Oguchi, Akio Maruyama, Keishi Saito +6 more | 1990-01-09 |
| 4884079 | Image forming apparatus and driving method therefor | Hiroshi Inoue, Satoshi Omata, Yoshiyuki Osada, Yutaka Inoue, Tadashi Yamakawa | 1989-11-28 |
| 4798997 | Lighting device | Hidemi Egami, Katsuo Saito | 1989-01-17 |
| 4797598 | Illumination apparatus | Katsuya Oikawa, Hidemi Egami, Katuo Saitor | 1989-01-10 |
| 4785372 | Method and device for charging or discharging member | Nagao Hosono, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami | 1988-11-15 |
| 4783716 | Charging or discharging device | Yukio Nagase, Hidemi Egami, Yoshihiko Hirose | 1988-11-08 |
| 4731668 | Image reading apparatus including means for accurately determining the location of read image information | Takeshi Honjo, Takashi Saito, Tatsuo Takeuchi, Tadashi Ishikawa, Masataka Naito +2 more | 1988-03-15 |
| 4709298 | Method and device for charging or discharging a member | Nagao Hosono, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami | 1987-11-24 |
| 4700261 | Method and apparatus for electrically charging or discharging | Yukio Nagase, Hidemi Egami, Tatsuo Takeuchi | 1987-10-13 |
| 4697196 | Electrostatic recording method and apparatus | Yutaka Inaba, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami, Akihito Hosaka | 1987-09-29 |
| 4674857 | Image recording apparatus | Tatsuo Takeuchi, Hidemi Egami, Yukio Nagase, Nagao Hosono | 1987-06-23 |
| 4651176 | Optical printer head and printer using same | Tadashi Yamakawa, Yutaka Inoue, Hideaki Yano | 1987-03-17 |
| 4628183 | Heating-fixing roller and fixing device having the same | — | 1986-12-09 |
| 4589053 | Method and device for charging or discharging a member | Nagao Hosono, Yukio Nagase, Tatsuo Takeuchi, Hidemi Egami | 1986-05-13 |
| 4544828 | Heating device | Michio Shigenobu | 1985-10-01 |
| 4504136 | Magnetic developing device with offset magnetic pole | Masao Yoshikawa, Fumitaka Kan | 1985-03-12 |
| 4389968 | Toner regenerating device | — | 1983-06-28 |
| 4220546 | Piezoelectric ceramic compounds | Katsuyoshi Takano | 1980-09-02 |