Issued Patents All Time
Showing 76–100 of 141 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7181148 | Image forming apparatus and device for determining the density and position of a toner pattern | Tetsuya Sakai, Katsuyuki Hirata, Hironori Akashi, Tatsuya Isono, Takashi Harashima | 2007-02-20 |
| 7149439 | Method and device for estimating toner concentration and image forming apparatus equipped with such device | Katsuyuki Hirata, Tetsuya Sakai, Tatsuya Isono, Hironori Akashi, Toshio Tsuboi +1 more | 2006-12-12 |
| 7115678 | Flame-retardant resin composition free from halogen | Toshiaki Ihara | 2006-10-03 |
| 7083888 | External additive for electrostatically charged image developing toner | Muneo Kudo | 2006-08-01 |
| 6855759 | Silica particles surface-treated with silane, process for producing the same and uses thereof | Muneo Kudo, Shoji Ichinohe, Atsushi Asami, Mitsuo Asai, Kazuyuki Matsumura | 2005-02-15 |
| 6672449 | Motorized roller | Tatsuhiko Nakamura, Tomoyuki Fujimoto | 2004-01-06 |
| 6671509 | Mobile communication unit and mobile communication system | Kenzo Urabe, Seigo Miyoshi, Yoshikuni Itoh, Hideto Yamaguchi | 2003-12-30 |
| 6576692 | Epoxidized block copolymer, its production, and its composition | Yoshihiro Ohtsuka, Yasuhiro Oshino | 2003-06-10 |
| 6521290 | Silica particles surface-treated with silane, process for producing the same and uses thereof | Muneo Kudo, Shoji Ichinohe, Atsushi Asami, Mitsuo Asai, Kazuyuki Matsumura | 2003-02-18 |
| 6316155 | External additive for electrostatically charged latent image developing toner | Muneo Kudo, Yoshiteru SAKATSUME, Shoji Ichinohe, Mitsuo Asai | 2001-11-13 |
| 6285839 | Image forming apparatus having function for automatically adjusting image forming condition | Tetsuya Sakai, Futoshi Hamada, Toshifumi Watanabe | 2001-09-04 |
| 6248495 | Electrostatic image developer | Yoshinori Inokuchi, Takaaki Shimizu | 2001-06-19 |
| 6094502 | Image formation apparatus that allows correction of .gamma. correction data and adjustment method thereof | Katsuyuki Hirata, Kentaro Katori | 2000-07-25 |
| 6021288 | Image forming apparatus | Yukihiko Okuno, Toshifumi Watanabe | 2000-02-01 |
| 5985372 | Method for preparing antibacterial/antifungal inorganic matter-composited wood | Shiro Saka, Fumie Tanno, Akira Yamamoto, Koichi Higuchi | 1999-11-16 |
| 5978615 | Tandem-type image forming apparatus and image forming condition determination method used in this tandem-type image forming apparatus | Yukihiko Okuno, Toshifumi Watanabe | 1999-11-02 |
| 5920748 | Image forming apparatus capable of estimating toner concentration | Atsushi Kawai, Tetsuya Sakai | 1999-07-06 |
| 5916980 | Polycarbonate resin composition | Noriyoshi Ogawa, Jun Tajima, Mitsuhiro Takarada | 1999-06-29 |
| 5860041 | Device for measuring toner concentration in developer comprising toner and carrier | Kuniya Matsuura, Toshifumi Watanabe | 1999-01-12 |
| 5840809 | Epoxidized block copolymer, its production, and its composition | Yoshihiro Ohtsuka, Yasuhiro Oshino | 1998-11-24 |
| 5754920 | Image forming apparatus and image forming method | Kentaro Katori, Atsushi Kawai, Hironobu Nakata | 1998-05-19 |
| 5724627 | Image forming apparatus which calculates toner consumption in accordance with tone correction | Yukihiko Okuno, Naoyoshi Kinoshita | 1998-03-03 |
| 5708917 | Toner replenishment device for an image forming apparatus which employs pixel density and toner density information | Atsushi Kawai, Tetsuya Sakai, Yukihiko Okuno | 1998-01-13 |
| 5708918 | Image formation apparatus that can maintain appropriately toner density in developing device | Yukihiko Okuno, Naoyoshi Kinoshita, Atsushi Kawai, Toshifumi Watanabe | 1998-01-13 |
| 5694223 | Digital image forming apparatus which specifies a sensitivity characteristic of a photoconductor | Kentaro Katori, Toshifumi Watanabe, Yukihiko Okuno, Hironobu Nakata, Katsuyuki Hirata | 1997-12-02 |