Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8175501 | Development roller including a development sleeve, surface treatment device that treats an outer surface of the development sleeve and wire member that roughens the outer surface of the development sleeve | Noriyuki Kamiya, Tsuyoshi Imamura, Sumio Kamoi, Kyohta Koetsuka, Yoshiyuki Takano +4 more | 2012-05-08 |
| 7891094 | Method of manufacturing a hollow body used in an image forming apparatus | Tsuyoshi Imamura, Kyohta Koetsuka, Yoshiyuki Takano, Masayuki Ohsawa, Hiroya Abe +3 more | 2011-02-22 |
| 7664441 | Developer holding member, development device, process cartridge, image forming apparatus and method of manufacturing hollow body | Tsuyoshi Imamura, Kyohta Koetsuka, Yoshiyuki Takano, Masayuki Ohsawa, Hiroya Abe +3 more | 2010-02-16 |
| 6781613 | Electrification apparatus and image forming apparatus | Minoru Matsuo | 2004-08-24 |
| 6122479 | Fixing device for an image forming apparatus and fixing roller for the same | Takashi Fujita, Hiroshi Wada | 2000-09-19 |
| 6108906 | Fixing device for an image forming apparatus and fixing roller for the same | Takashi Fujita, Hiroshi Wada | 2000-08-29 |
| 4755309 | Cold working lubricant for metallic conduits | Takeshi Kobori, Shigeki Kimura, Tadashi Ito, Mituru Uemura, Masamitu Tamura +2 more | 1988-07-05 |
| 4534199 | Method and apparatus for produced stepped tubes | Kazuhide Takaishi, Toshiki Kadonaga, Masamitsu Tamura, Mitsuru Mizoguchi, Yoshinobu Hirota +1 more | 1985-08-13 |
| 4233108 | Process for use in etching the outer surface of a metal member | Masamitu Tamura, Yukio Yasuhara, Masaru Sakai, Kazuo Akagi, Ryohei Kazihata +1 more | 1980-11-11 |