Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8218990 | Image formation system, image formation method, and image quality improvement method twice heating and pressing a toner image on a recording material | Yuichiro Toyohara, Jiro Ishiduka, Haruhiko Omata, Motohide Shiozawa, Tatsuomi Murayama | 2012-07-10 |
| 7510036 | Power conversion device and vehicle equipped therewith | Takaji Kikuchi | 2009-03-31 |
| 7455553 | Semiconductor device with power module and an insulating member provided between a conductive casing and a non-insulating portion | Takaji Kikuchi | 2008-11-25 |
| 6701121 | Color-mixing fixing device in which impact resilience of surface layer of fixing rotary member is 50% or less | Yasuo Nami, Kazuo Kishino, Jiro Ishizuka, Hideo Kawamoto | 2004-03-02 |
| 5950061 | Fixing member having an inner elastic layer with a surface roughness | Mitsuhiro Ota, Kazuo Kishino, Hideo Kawamoto | 1999-09-07 |
| 5903802 | Method for forming an image by absorbing a release agent using a release agent absorbing layer coated on feed passage member | Akira Watanabe, Toru Obuchi, Masahiro Itoh, Takeo Tsunemi, Yasuo Nami +3 more | 1999-05-11 |
| 5809368 | Image forming apparatus capable of forming an image having a plurality of colors on a light-transmitting recording material | Rie Saito, Jiro Ishizuka, Mitsuhiro Ota | 1998-09-15 |
| 5752140 | Developing device using development bias having oscillating part and a quiescent part | Toshimitsu Danzuka, Yuji Sakemi, Hisashi Fukushima | 1998-05-12 |
| 5742873 | Image forming apparatus and oil cleaning member | Takahiro Kubo, Takashi Hasegawa, Yoichi Kimura, Kazuo Suzuki, Satoshi Tamura | 1998-04-21 |
| 5722007 | Image forming apparatus having detection means for detecting density of developer | Takao Ogata, Kazuo Suzuki | 1998-02-24 |
| 5669050 | Developing apparatus using blank pulse bias | Yuji Sakemi, Koji Amemiya, Masahiro Inoue, Masami Izumizaki | 1997-09-16 |
| 5652650 | Color image apparatus including a plurality of developing devices having a particular sequence of operation | Yoshihiro Murasawa, Hisashi Fukushima, Takashi Hasegawa | 1997-07-29 |
| 5636010 | Image forming apparatus having a plurality of developing means | Toshimitsu Danzuka, Takao Ogata | 1997-06-03 |
| 5619746 | Image forming apparatus having recording material bearing member | Takahiro Kubo, Yoshihiro Murasawa, Hisashi Fukushima, Takashi Hasegawa, Satoshi Tamura | 1997-04-08 |
| 5610698 | Image forming apparatus for inverting an original to record both surfaces on separate recording materials | — | 1997-03-11 |
| 5608508 | Rotatable member for fixing in which inorganic filler is contained in silicone rubber, and fixing device having the same | Hiroaki Kumagai, Kazuo Kishino, Masaaki Takahashi, Rie Saito, Jiro Ishizuka +2 more | 1997-03-04 |
| 5589926 | Color image forming apparatus for forming a color image by transferring color toner to transfer member | Yoshihiro Murasawa, Hisashi Fukushima, Takashi Hasegawa | 1996-12-31 |
| 5589920 | Image forming apparatus in which plural transfer media are carried concurrently | Takahiro Kubo, Masashi Suda, Yoshihiro Murasawa, Takashi Hasegawa, Satoshi Tamura +1 more | 1996-12-31 |
| 5582902 | Laminate film for receiving toner image and method for forming fixed toner image on laminate film | Makoto Kanbayashi, Takayuki Nagatsuka, Takashige Kasuya, Tatsuya Nakamura, Tatsuhiko Chiba +1 more | 1996-12-10 |
| 5559587 | Image forming apparatus | Takao Ogata | 1996-09-24 |
| 5499088 | Color toner image fixing apparatus having a back-up member, heater and film with a deformable surface layer | — | 1996-03-12 |
| 5469244 | Developing agent density control method of varying development bias in density control | Takao Ogata | 1995-11-21 |
| 5424819 | Image-forming apparatus capable of controlling application timing of releasing agent | — | 1995-06-13 |
| 5327202 | Elastic body of an addition reaction type silicone rubber elastic material used in elastic roller and fixing device | Yasuo Nami, Kazuo Kishino, Hideo Kawamoto | 1994-07-05 |
| 5289245 | Recording material for use in an image forming apparatus in which a powder toner image is formed on the recording material and then fixed by the application of heat and pressure | — | 1994-02-22 |