Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8472829 | Measuring apparatus, measuring method and image forming apparatus | Tetsuya Atsumi, Kunitoshi Aoki | 2013-06-25 |
| 8213820 | Measuring apparatus, measuring method and image forming apparatus | Tetsuya Atsumi, Kunitoshi Aoki | 2012-07-03 |
| 7343112 | Image forming apparatus using hypochromatic toner and hyperchromatic toner | Nobuyuki Ito, Takeshi Ikeda, Isami Itoh, Yasukazu Ayaki, Tomohito Ishida | 2008-03-11 |
| 6996358 | Toner kit, toner, method for forming an image, and image forming apparatus | Yasukazu Ayaki, Takeshi Ikeda, Nobuyuki Itoh, Isami Itoh, Tomohito Ishida | 2006-02-07 |
| 6879788 | Image forming apparatus with density detecting means | Nobuyuki Ito, Takeshi Ikeda, Isami Itoh, Yasukazu Ayaki, Tomohito Ishida | 2005-04-12 |
| 6803932 | Image forming apparatus | Isami Itoh, Takeshi Ikeda, Nobuyuki Itoh, Yasukazu Ayaki, Tomohito Ishida | 2004-10-12 |
| 6661445 | Exposure apparatus with an array of light emitting devices | Seiji Mashimo, Noboru Koumura, Yuichi Hashimoto, Akihiro Senoo, Kazunori Ueno | 2003-12-09 |
| 6583805 | Exposure unit for image forming apparatus using electrophotographic system, and electrophotographic image forming apparatus | Seiji Mashimo, Noboru Koumura, Akihiro Senoo, Kazunori Ueno | 2003-06-24 |
| 6580889 | IMAGE FORMING APPARATUS HAVING A MEMBER TO BE CHARGED, INJECTION CHARGING MEANS HAVING AN ELASTIC MEMBER FOR PRESS-CONTACTING THE MEMBER TO BE CHARGED, AND ELECTROCONDUCTIVE PARTICLES BETWEEN THE ELASTIC MEMBER AND THE MEMBER TO BE CHARGED | Harumi Ishiyama, Yasunori Chigono, Jun Hirabayashi | 2003-06-17 |
| 6504565 | Light-emitting device, exposure device, and image forming apparatus | Izumi Narita, Noboru Koumura, Seiji Mashimo | 2003-01-07 |
| 6344661 | Light emitting element array, exposure device and image forming apparatus | Noboru Koumura, Izumi Narita, Seiji Mashimo | 2002-02-05 |
| 6289190 | Electrophotographic apparatus and process cartridge | Shoji Amamiya, Akio Maruyama, Toshihiro Kikuchi, Koichi Suzuki, Harumi Ishiyama | 2001-09-11 |
| 6266074 | Light emitting apparatus with temperature control, exposure apparatus, and image forming apparatus | Noboru Koumura, Izumi Narita, Seiji Mashimo | 2001-07-24 |
| 6188420 | Image forming apparatus | Masaki Kuribayashi, Noboru Koumura, Izumi Narita, Seiji Mashimo | 2001-02-13 |
| 6134407 | Charging apparatus for charging a moving member to be charged including an elastic rotatable member carrying electroconductive particles on the surface thereof | Harumi Ishiyama, Yasunori Chigono, Jun Hirabayashi | 2000-10-17 |
| 6128456 | Image forming apparatus having a charging member applying an electric charge through electrically conductive or electroconductive particles to the surface of a photosensitive or image bearing member | Yasunori Chigono, Harumi Ishiyama, Jun Hirabayashi | 2000-10-03 |
| 6121994 | Image forming apparatus and light emitting apparatus | Masaki Kuribayashi, Noboru Koumura, Izumi Narita, Seiji Mashimo | 2000-09-19 |
| 6081681 | Charging device, charging method, process cartridge and image forming apparatus | Harumi Ishiyama, Yasunori Chigono, Jun Hirabayashi | 2000-06-27 |
| 6035076 | Image forming apparatus | — | 2000-03-07 |
| 5877799 | Illumination control means for image forming apparatus | — | 1999-03-02 |
| 5818489 | Image forming apparatus and process cartridge having exposure device using light beam having specific spot area | Kazuo Yoshinaga, Kiyoshi Sakai, Yuichi Hashimoto, Mamoru Tanaka | 1998-10-06 |
| 5748328 | Color image processing apparatus which forms dot images at varying positions on a scanning line | Akihiro Usami, Yoshinori Mochida, Atsutomo Yoshizawa, Yoshinori Ikeda, Kazuhisa Kemmochi +4 more | 1998-05-05 |
| 5666589 | Electrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensity | Kazuo Yoshinaga, Hajime Miyazaki, Teigo Sakakibara, Yuichi Hashimoto, Yoshio Kashizaki +2 more | 1997-09-09 |
| 5576812 | Developing method with carrier chains contacted to image bearing member | Masaru Hibino, Kenichiro Waki, Hiroyuki Suzuki | 1996-11-19 |
| 5469266 | Color image processing apparatus which uses different screen angles for different color components | Akihiro Usami, Yoshinori Mochida, Atsutomo Yoshizawa, Yoshinori Ikeda, Kazuhisa Kemmochi +4 more | 1995-11-21 |