Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6873813 | Development method and image formation apparatus | Kazuhiko Furukawa, Tadashi Iwamatsu, Hiroyuki Hirakawa | 2005-03-29 |
| 6714225 | Image formation apparatus and image formation method | Yoshinori Mutou, Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Nakajima | 2004-03-30 |
| 6681091 | Development method and image formation apparatus | Kazuhiko Furukawa, Tadashi Iwamatsu, Hiroyuki Hirakawa | 2004-01-20 |
| 6596812 | Moldable thermoplastic resin composition containing rubber-reinforced resin and an aromatic polycarbonate | Toshiyuki Toyoda, Yasuhiko Itou, Kazuki Iwai | 2003-07-22 |
| 6496210 | Electrophotographic imaging apparatus | Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Mutou | 2002-12-17 |
| 6433803 | Exposure apparatus for image formation and image formation method | Yoshinori Mutou, Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Nakajima | 2002-08-13 |
| 6417876 | Apparatus and method for forming image with high image resolution from images having various dot densities | Yoshinori Nakajima, Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Mutou | 2002-07-09 |
| 6323888 | Image forming apparatus | Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Mutou, Yoshinori Nakajima | 2001-11-27 |
| 6298206 | Electrophotographic developing apparatus | Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Mutou, Yoshinori Nakajima | 2001-10-02 |
| 6239824 | Apparatus and method for forming image with superior image reproducibility | Yoshinori Mutou, Tadashi Iwamatsu, Nobuyuki Azuma, Yoshinori Nakajima | 2001-05-29 |
| 6178303 | Contact depth controlling roller mechanism | Hiroshi Ishii, Hiroshi Tatsumi, Takashi Sakai | 2001-01-23 |
| 6087056 | Developing method by flying toner | Tadashi Iwamatsu, Nobuyuki Azuma, Hideaki Fujita, Takayuki Yamanaka | 2000-07-11 |
| 6049689 | Developing apparatus with vibration absorbtion device | Hiroshi Ishii, Eiichi Kido, Takashi Sakai, Tadashi Iwamatsu, Hiroshi Tatsumi | 2000-04-11 |
| 6032003 | Monocomponent development apparatus | Hiroshi Tatsumi, Takashi Sakai | 2000-02-29 |
| 6026266 | Developing apparatus using one-component toner | Takashi Sakai, Hiroshi Ishii, Hiroshi Tatsumi, Toshihiko Takaya | 2000-02-15 |
| 5960239 | Developing device with developer charging and application regulating member | Nobuyuki Azuma, Takayuki Yamanaka | 1999-09-28 |
| 5805315 | Holographic scanner including a rotary hologram disk between a front hologram and a rear hologram | Tadashi Iwamatsu | 1998-09-08 |
| 5680232 | Holographic scanner including a rotary hologram disk between a front hologram and a rear hologram | Tadashi Iwamatsu | 1997-10-21 |
| 5416567 | Developing device and a developing method having a conductive member upstream of image data forming member | Tetsuyuki Ueda, Atsushi Inoue, Taisuke Kamimura, Hideaki Fujita, Takayuki Yamanaka | 1995-05-16 |
| 5172252 | Hologram scanner and method of recording and reproducing hologram in the hologram scanner | Tetsuyuki Ueda | 1992-12-15 |
| 4907016 | Recording head for use in an electrically excited transfer recording device | Tadashi Iwamatsu, Shunji Nakai, Hiroyuki Sawai, Shigemi Asai | 1990-03-06 |