Issued Patents All Time
Showing 26–50 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6920299 | Image forming apparatus and intermediate transfer unit detachably mountable thereon | Masaru Shimura, Tatsuya Kobayashi, Takashi Shibuya, Hidekazu Matsuda | 2005-07-19 |
| 6912369 | Image forming apparatus | Tatsuya Kobayashi, Masaru Shimura, Koichi Suzuki, Takamitsu Soda | 2005-06-28 |
| 6856777 | Image forming apparatus with first and second charging members for charging residual toner | Naoki Enomoto, Takashi Shibuya, Masaru Shimura | 2005-02-15 |
| 6823159 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE INCLUDING A DEVELOPING DEVICE PROVIDED AT LEAST WITH A DEVELOPER HOLDING MEMBER FOR HOLDING A DEVELOPER CONTAINING A TONER AND A DEVELOPER REGULATING MEMBER | Hiroaki Sakai, Takeshi Kawamura | 2004-11-23 |
| 6747671 | Video apparatus having function to change size of image and method thereof | — | 2004-06-08 |
| 6710781 | Image display apparatus having different display mode and method thereof | — | 2004-03-23 |
| 6711367 | Image forming apparatus and belt unit detachably mountable thereto | Naoki Enomoto, Takashi Shibuya, Masaru Shimura | 2004-03-23 |
| 6612698 | Pupil measurement apparatus, refraction correction apparatus, and pupil measurement method | Shuichiro Eguchi, Yasuko Ise | 2003-09-02 |
| 6615002 | Image forming apparatus and process cartridge for applying an alternating current to a charging member or charging means for charging an image bearing member | Tomohiro Nakamori, Hiroshi Takami, Hiroaki Sakai, Masaru Shimura, Takeshi Kawamura | 2003-09-02 |
| 6564023 | Image forming apparatus with AC current detector | Hiroshi Takami, Tomohiro Nakamori, Masaru Shimura | 2003-05-13 |
| 6546214 | Image forming apparatus comprising storing means for storing a parameter regarding an accumulation operation amount of the apparatus or of a cartridge detachably mountable to the apparatus | Hiroaki Sakai, Takeshi Kawamura | 2003-04-08 |
| 6539184 | Image forming apparatus with current control | Masaru Shimura, Tomohiro Nakamori, Hiroshi Takami, Hiroaki Sakai | 2003-03-25 |
| 6516158 | Image forming apparatus and process cartridge comprising a charging member for charging an image bearing member through contact with the image bearing member | — | 2003-02-04 |
| 6397017 | Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus | Hiroaki Sakai, Kazushi Watanabe, Toshiyuki Karakama, Masaru Shimura, Hideki Matsumoto | 2002-05-28 |
| 6288752 | Video equipment for displaying a picture screen in an arbitrary size at an arbitrary position on a display screen | Masashi Usui, Yuzo Murayama, Hiroaki Nagasawa | 2001-09-11 |
| 6282384 | Developing device, process cartridge and electrophotographic image forming apparatus | Hiroaki Sakai, Masaru Shimura | 2001-08-28 |
| 5864638 | Image data processing using bi-level and multi-level value data | Yasuhisa Ishizawa, Kenjiro Chyo, Hiroshi Nonoshita, Yasuhisa Shigehara, Shigeki Miura | 1999-01-26 |
| 5754194 | Bubble jet recording with selectively driven electrothermal transducers | Ichiro Endo, Yasushi Sato, Takashi Nakagiri, Shigeru Ohno | 1998-05-19 |
| 5610726 | Image processing system | Hiroshi Nonoshita, Kenjiro Cho, Yasuhisa Shigehara | 1997-03-11 |
| 5521621 | Bubble jet recording apparatus with processing circuit for tone gradation recording | Ichiro Endo, Yasushi Sato, Takashi Nakagiri, Shigeru Ohno | 1996-05-28 |
| 5521990 | Image data processing using bi-level and multi-level value data | Yasuhisa Ishizawa, Kenjiro Chyo, Hiroshi Nonoshita, Yasuhisa Shigehara, Shigeki Miura | 1996-05-28 |
| 5453845 | Apparatus for providing variable gamma correction in both on-line and off-line modes of operation | Hiroshi Nonoshita, Kenjiro Cho, Yasuhisa Shigehara | 1995-09-26 |
| 5159349 | Recording apparatus which projects droplets of liquid through generation of bubbles in a liquid flow path in response to signals received from a photosensor | Ichiro Endo, Yasushi Sato, Takashi Nakagiri, Shigeru Ohno | 1992-10-27 |
| 5122814 | Bubble jet recording apparatus actuated by interface means | Ichiro Endo, Yasushi Sato, Takashi Nakagiri, Shigeru Ohno | 1992-06-16 |
| 5006937 | Imaging data processing apparatus | Hiroshi Nonoshita | 1991-04-09 |