Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7162180 | Elastic roller | Yuichiro Mori, Shu Inoue, Ryuta Tanaka | 2007-01-09 |
| 6067434 | Developing roller and developing apparatus | Koji Takagi, Tokuo Okada, Hiroshi Kaneda, Koichi Iwami | 2000-05-23 |
| 6058285 | Gloss and image forming apparatus | Koji Takagi, Norihiko Kaga | 2000-05-02 |
| 5903808 | Developing roller and developing apparatus | Koji Takagi, Takahiro Kawagoe | 1999-05-11 |
| 5900334 | Hydrogen occluding alloy | Masahiro Wada | 1999-05-04 |
| 5878313 | Developing roller and apparatus | Koji Takagi, Eiji Sawa | 1999-03-02 |
| 5697027 | Developing roller employing an elastic layer between conductive shaft and outer conductive layer and developing apparatus | Koji Takagi, Takahiro Kawagoe | 1997-12-09 |
| 5666626 | Apparatus for developing electrostatic latent images using developing roller having specific ionization potential | Koji Takagi, Hiroshi Kaneda, Takahiro Kawagoe | 1997-09-09 |
| 5634989 | Amorphous nickel alloy having high corrosion resistance | Koji Hashimoto, Akira Mitsuhashi, Katsuhiko Asami, Asahi Kawashima | 1997-06-03 |
| 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, Koji Takagi +1 more | 1996-10-15 |
| 5529642 | Nickel-based alloy with chromium, molybdenum and tantalum | Katsuo Sugahara, Hideo Kitamura, Saburo Wakita, Koji Toyokura, Tsutomu Takahashi | 1996-06-25 |
| 5475473 | Electric charging member and electric charging apparatus | Yoshitomo Masuda, Hajime Tamura, Takahiro Kawagoe, Gaku Yakushiji, Kazuya Murata +1 more | 1995-12-12 |
| 5434653 | Developing roller and apparatus | Koji Takagi, Hiroshi Harashima, Hiroshi Kaneda, Hideyuki Niwa, Taro Miyamoto +2 more | 1995-07-18 |
| 5320921 | Electrophotographic photoreceptor | Takeo Oshiba | 1994-06-14 |
| 5270140 | Bisstyryl compound and the electrophotographic photoreceptors relating thereto | Naoto Abew, Naohiro Hirose, Hirofumi Hayata, Syozo Mitsui, Shinichi Suzuki +2 more | 1993-12-14 |
| 5013625 | Photoreceptor | Kunio Sigeta, Shigeki Takeuchi, Hiroshi Yoshioka, Yoshihide Fujimaki | 1991-05-07 |
| 4940644 | Toner for development of electrostatic images and image forming method by use thereof | Akitoshi Matsubara, Satoru Ikeuchi, Kunio Akimoto | 1990-07-10 |
| 4935327 | Polyester toner with antioxidant for development of electrostatic latent image | Jiro Takahashi, Akitoshi Matsubara, Satoru Ikeuchi | 1990-06-19 |
| 4931375 | Powdered electrostatic image developing toner | Kunio Akimoto, Satoru Ikeuchi | 1990-06-05 |
| 4879185 | Heat transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-11-07 |
| 4861550 | Corrosion-resistant nickel-base alloy having high resistance to stress corrosion cracking | Takeshi Yoshida, Ichiro Sekine | 1989-08-29 |
| 4826578 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-05-02 |
| 4824530 | Method of producing heat-transfer material | Yasuo Masuda, Tsutomu Takahashi, Naokazu Yoshiki | 1989-04-25 |
| 4795689 | Electrostatic image developing toner for use in heat-roller fixing | Akitoshi Matsubara, Satoru Ikeuchi, Kunio Akimoto | 1989-01-03 |