Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7287918 | Semiconductor laser module | Keiji Kataoka, Yasuyuki Shibayama, Susumu Monma, Koji Doi | 2007-10-30 |
| 6768558 | Printed matter including invisible information and printing system | Taichiro Yamashita, Takeshi Shibuya | 2004-07-27 |
| 6606472 | Method and apparatus for forming color image | Akira Mori, Yukio Yamamoto, Kazumi Takahashi, Shogo Matsumoto, Taisaku Seino +4 more | 2003-08-12 |
| 6539188 | Liquid developing device, method of it's maintenance and the method of recovery of supplemental fluid from the liquid developing device | Shogo Matsumoto, Kazutaka Satou, Mieko Ishii, Yoshio Ohuchi | 2003-03-25 |
| 6414821 | Magnetic head support mechanism and magnetic disk drive | Mikio Tokuyama, Yukio Kato, Hiromitsu Tokisue | 2002-07-02 |
| 6184909 | Recording apparatus with rotatable liquid developer units enabling agitation of liquid developer | Shogo Matsumoto, Akira Mori, Keiji Kamio, Mitsuo Suzuki | 2001-02-06 |
| 6101355 | Liquid development apparatus | Shogo Matsumoto, Akira Mori, Keiji Kamio, Mitsuo Suzuki | 2000-08-08 |
| 6069641 | Ion flow recording apparatus and liquid developing method | Shogo Matsumoto, Taisaku Seino, Yasushi Kinoshita, Akira Mori, Keiji Kamio +4 more | 2000-05-30 |
| 5828930 | Electrostatic recording apparatus and its recording method | Shogo Matsumoto, Yasushi Kinoshita | 1998-10-27 |
| 5778294 | Electrophotographic apparatus and belt fixing device with non-uniform nip pressure | Chikara Hiraoka, Hiromitsu Fukuda | 1998-07-07 |
| 5774777 | Continuous recording medium friction-conveying mechanism in image forming apparatus | Hidefumi Ohtsuka, Shigeru Obata, Yasuyuki Tsuji, Shuho Yokokawa, Isao Nakajima +2 more | 1998-06-30 |
| 5602578 | Color printer with transfer and superposition of different color toner images onto intermediate transcription member | Michio Sumiyoshi, Akira Sasaki, Hiroyuki Tadokoro, Takeshi Kato, Isamu Terashima +1 more | 1997-02-11 |
| 5499087 | Heat fixing device and electrophotographic apparatus incorporating the same having a PTC heating element received in a recess of a holder | Chikara Hiraoka, Masao Mitani, Hiroshi Oda, Toshikazu Tsumura | 1996-03-12 |
| 5499086 | Belt type transfer device for electrophotographic apparatus | Shigeru Obata, Yasuo Takuma, Masato Miwa, Kazuo Uno | 1996-03-12 |
| 5493384 | Color electro-photographic apparatus with endless-belt-shaped photosensitive member | Masaru Nakano, Tetsuro Akasaki, Tomio Hayano, Shoji Ukei, Hiroyuki Tadokoro | 1996-02-20 |
| 5351114 | Electrophotographic copying apparatus having ribbon-shaped toner image carrier | — | 1994-09-27 |
| 5282004 | Electrophotograhic apparatus and method for preventing attraction of copy sheet to photoreceptor | Masaru Nakano | 1994-01-25 |
| 5246224 | Method and device for correcting attitude of transferred sheet | Mitsuyoshi Satoo | 1993-09-21 |
| 5243394 | Electrophotographic device provided with a mechanism for attaching marks to edges of sheets | Yozo Suzumura, Hiroyoshi Tokoro | 1993-09-07 |
| 5231457 | Method and apparatus for preventing attraction of a work sheet to a toner image forming surface | Masaru Nakano | 1993-07-27 |
| 5157449 | Method and device for xerographic printing | Masahiro Yamazaki | 1992-10-20 |
| 5152513 | Sheet reversing apparatus for individual sheet feeding | Tsuyoshi Ogasawara, Masataka Kawauchi, Makoto Kurosawa, Masaaki Koseki, Tetsuro Takahashi +1 more | 1992-10-06 |
| 5130753 | Electrophotographic copying apparatus | Masaru Nakano | 1992-07-14 |
| 5090676 | Method of and apparatus for separating and feeding sheets | Tsuyoshi Ogasawara, Masataka Kawauchi | 1992-02-25 |
| 5039086 | Method and apparatus for adjusting posture of sheets | Tsuyoshi Ogasawara, Masataka Kawauchi, Tsuneki Kobayashi, Yasuyuki Tsuji | 1991-08-13 |