Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7705823 | Image display unit | Norio Nihei, Hajime Kitano, Gaku Yakushiji, Kazuya Murata, Koji Takagi +2 more | 2010-04-27 |
| 7646530 | Particle and device for image display | Koji Takagi, Kazuya Murata, Norio Nihei, Gaku Yakushiji, Hajime Kitano +1 more | 2010-01-12 |
| 7525719 | Particles and device for displaying image | Gaku Yakushiji, Hajime Kitano, Kazuya Murata, Norio Nihei, Koji Takagi +1 more | 2009-04-28 |
| 7321459 | Image display device and method | Yoshitomo Masuda, Gaku Yakushiji, Kazuya Murata, Norio Nihei, Koji Takagi +2 more | 2008-01-22 |
| 7224510 | Reversible image display sheet and image display | Hajime Kitano, Gaku Yakushiji, Kazuya Murata, Norio Nihei, Koji Takagi +1 more | 2007-05-29 |
| 6814892 | Ethylene propylene rubber foam and image formation equipment | Chikara Yamada, Toshiyuki Osaki, Tadashi Nakajima | 2004-11-09 |
| 6579473 | Ethylene propylene rubber foam and image formation equipment | Chikara Yamada, Toshiyuki Osaki, Tadashi Nakajima | 2003-06-17 |
| 6572791 | Electroconductive elastic member, elastic member and image formation equipment | Junji Sakata, Hirotaka Yamazaki, Tadashi Nakajima | 2003-06-03 |
| 6555210 | Charging member and charging device | Yoshitomo Masuda, Gaku Yakushiji | 2003-04-29 |
| 6312792 | Electrically conductive member and image-forming apparatus | Tokuo Okada, Koji Takagi, Hiroshi Kaneda, Toshiaki Arai | 2001-11-06 |
| 6175709 | Toner support and image forming apparatus | Koji Takagi, Tokuo Okada, Toshiaki Arai, Takashi Kitamura | 2001-01-16 |
| 6108509 | Toner carrier and image-forming apparatus | Tokuo Okada, Koji Takagi, Hiroshi Kaneda, Toshiaki Arai | 2000-08-22 |
| 6009297 | Intermediate transfer member and image-forming device | Yuko Maeda, Norihiko Kaga, Chikara Yamada, Yoshitomo Masuda | 1999-12-28 |
| 5978639 | Intermediate transfer member and intermediate transfer device | Yoshitomo Masuda, Yuko Maeda, Norihiko Kaga, Hideyuki Niwa, Chikara Yamada +1 more | 1999-11-02 |
| 5933693 | Electroconductive elastic member and electrophotographic apparatus using same | Junji Sakata, Tadashi Nakajima | 1999-08-03 |
| 5911099 | Electroconductiive member and electrophotogrpahic apparatus | Tadashi Nakajima, Junji Sakata | 1999-06-08 |
| 5903808 | Developing roller and developing apparatus | Yoshio Takizawa, Koji Takagi | 1999-05-11 |
| 5740008 | Charging member and device | Yoshitomo Masuda, Yasushi Inoue, Shigeru Kijima, Yuko Maeda | 1998-04-14 |
| 5697027 | Developing roller employing an elastic layer between conductive shaft and outer conductive layer and developing apparatus | Koji Takagi, Yoshio Takizawa | 1997-12-09 |
| 5666626 | Apparatus for developing electrostatic latent images using developing roller having specific ionization potential | Yoshio Takizawa, Koji Takagi, Hiroshi Kaneda | 1997-09-09 |
| 5659854 | Electrostatic charging member and photoconductor device | Yoshitomo Masuda, Hiroshi Kaneda, Tadashi Nakajima, Taro Miyamoto, Yuko Maeda +1 more | 1997-08-19 |
| 5602712 | Contact charging method and apparatus | Hideharu Daifuku, Yoshitomo Masuda, Kinya Suzuki, Hiroshi Harashima, Hiroshi Kaneda +1 more | 1997-02-11 |
| 5565968 | Developing roller, and method and apparatus for developing latent images using the roller | Eiji Sawa, Ryuta Tanaka, Yuichiro Mori, Tokuo Okada, Yoshio Takizawa +1 more | 1996-10-15 |
| 5475473 | Electric charging member and electric charging apparatus | Yoshitomo Masuda, Hajime Tamura, Yoshio Takizawa, Gaku Yakushiji, Kazuya Murata +1 more | 1995-12-12 |
| 5434653 | Developing roller and apparatus | Yoshio Takizawa, Koji Takagi, Hiroshi Harashima, Hiroshi Kaneda, Hideyuki Niwa +2 more | 1995-07-18 |