Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7943241 | Composite ceramic body | Kazutsugu Kobayashi, Motoaki Yoshida, Masahiro Okumura, Atsushi Ogasawara, Tetsurou Abumita +2 more | 2011-05-17 |
| 5881344 | Image forming apparatus and charging device thereof | Kazuo Nojima, Masako Chiba, Toshio Nakahara | 1999-03-09 |
| 5792533 | Electrostatic charging roller | Takeshi Tabuchi | 1998-08-11 |
| 5786091 | Charge roller for an image forming apparatus | Kazuo Nojima, Masako Chiba, Toshio Nakahara | 1998-07-28 |
| 5689770 | Image forming apparatus which maintains a temperature of a charge roller | Kazuo Nojima, Masako Chiba, Toshio Nakahara | 1997-11-18 |
| 5619311 | Roller charging apparatus and image forming apparatus using the same | Toshio Nakahara, Norimasa Soumiya | 1997-04-08 |
| 5602627 | Electrifying roller, roller electrifying apparatus using the same, and image forming apparatus using the same | — | 1997-02-11 |
| 5499078 | Charge roller and image forming apparatus using the same | Kazuo Nojima, Norimasa Sohmiya | 1996-03-12 |
| 5497219 | Charge rollers having improved layer structure and/or surface characteristics in an image forming apparatus | Kazuo Nojima, Masaki Sekizawa | 1996-03-05 |
| 5479243 | Image forming apparatus and charging device thereof | Kazuo Nojima, Masako Chiba, Toshio Nakahara | 1995-12-26 |
| 5155533 | Bias application control device for image forming equipment | Tsukasa Adachi, Hiromi Demizu | 1992-10-13 |
| 4965871 | Continuous plural page copying method for a copier | Masaaki Ogura, Kiyotaka Ohta, Masaji Ito, Toshiaki Hayasaka | 1990-10-23 |
| 4578331 | Color image forming method | Itsuo Ikeda, Mitsuo Hasebe, Seiichi Miyagawa, Hajime Hariu | 1986-03-25 |
| 4278343 | Inversion developing method for electrophotography and relevant apparatuses | — | 1981-07-14 |