Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7187894 | Image forming apparatus having a heat belt | — | 2007-03-06 |
| 7187900 | Image forming apparatus having a fixing device for fixing toner image formed on a sheet by an endless fixing belt engaged with a fixing roller | Yoshio Yamazaki, Junichi Hamada, Hisayoshi Nagase, Masahiro Onodera | 2007-03-06 |
| 7050747 | Pressure applying device to fixing roller of image forming apparatus | Hisayoshi Nagase | 2006-05-23 |
| 7046950 | Image forming apparatus | Haruo Iwahashi, Hisayoshi Nagase, Masahiro Onodera | 2006-05-16 |
| 7010240 | Image forming apparatus that controls a fixing device to fix a toner image onto paper with improved productivity | Hisayoshi Nagase, Masahiro Onodera | 2006-03-07 |
| 6795681 | Fixing device controlling method, fixing device, and image forming apparatus for forming fixed images of desired glossiness | Masahiro Onodera, Junichi Hamada | 2004-09-21 |
| 6782231 | Pressure applying device to fixing roller of image forming apparatus | Hisayoshi Nagase | 2004-08-24 |
| 6650863 | Fixing unit and image forming apparatus | — | 2003-11-18 |
| 6584297 | Image fixing device and image forming apparatus equipped therewith | Hisayoshi Nagase | 2003-06-24 |
| 6438841 | Device for holding fixing roller, method for manufacturing fixing roller, and image forming apparatus | Shuta Hamada, Masahiro Onodera | 2002-08-27 |
| 6137978 | Toner replenishing apparatus having a plurality of scraping members of differing capacities | Takahiro Tsuchiya, Isao Matsuoka, Kenji Taki | 2000-10-24 |
| 5459563 | Method of forming a multicolor toner image on a photoreceptor and transferring the formed image to a recording sheet | Hisahiro Saitou, Mikihiko Takada | 1995-10-17 |
| 5300984 | Image forming apparatus having controlled transfer unit | Hisahiro Saitou, Mikihiko Takada | 1994-04-05 |
| 5276491 | Image forming apparatus | Mitsuo Motohashi, Yozo Fujii, Akihiko Kakita | 1994-01-04 |
| 5260752 | Image forming method including an additional exposing step | Hisahiro Saito, Mikihiko Takada | 1993-11-09 |
| 5172174 | Transfer device with insulated shield | Mitsuo Motohashi, Yozo Fujii, Akihiko Kakita | 1992-12-15 |
| 5153653 | Image forming apparatus | Mitsuo Motohashi, Yozo Fujii, Akihiko Kakita, Takashi Murahashi, Kazuo Yasuda +2 more | 1992-10-06 |
| 5054419 | Image forming apparatus | Masahiko Itaya, Yukio Okamoto, Kazuo Yasuda, Masayuki Kamegamori, Kunihisa Yoshino +5 more | 1991-10-08 |
| 5024181 | Method for the development of an electrostatic latent image | Hisashi Shoji, Akihiko Tamura, Masahiko Itaya, Shinobu Soma | 1991-06-18 |
| 4908291 | Method of regulating the thickness of a developer layer containing magnetic carrier and toner particles | Akihiko Tamura, Masahiko Itaya, Hisashi Shoji, Shinobu Soma | 1990-03-13 |
| 4822711 | Electrostatic image-developing process using a magnetic roller | Masahiko Itaya, Toshiro Fujimori | 1989-04-18 |
| 4814797 | Apparatus and method for controlling color dot size in multicolor image | Satoshi Haneda, Hisashi Shoji | 1989-03-21 |
| 4814818 | Developer layer forming apparatus | Masahiko Itaya, Toshiro Fujimori | 1989-03-21 |
| 4669864 | Image forming apparatus | Hisashi Shoji, Satoshi Haneda, Seiichiro Hiratsuka, Shinobu Soma, Masahiko Itaya +2 more | 1987-06-02 |
| 4585326 | Developing electrophotographic image using magnets and magnetic material | Yukio Okamoto, Kiyoshi Kimura, Tadashi Miwa, Noriyoshi Tarumi, Masakazu Fukuchi +1 more | 1986-04-29 |