Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6852400 | Endless belt electrophotography, process for producing the endless belt, and image forming apparatus having the endless belt | Akihiko Nakazawa, Hiroyuki Kobayashi, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe +2 more | 2005-02-08 |
| 6846601 | Negatively chargeable toner, image-forming method and process cartridge | Satoshi Matsunaga | 2005-01-25 |
| 6592803 | Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship | Akihiko Nakazawa, Hiroyuki Kobayashi, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe +2 more | 2003-07-15 |
| 6541174 | Method using toner and developer for developing electrostatic image | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Rika Shinba +2 more | 2003-04-01 |
| 6303072 | Process of making an endless belt | Hiroyuki Kobayashi, Akihiko Nakazawa, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe +2 more | 2001-10-16 |
| 6187496 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Rika Shinba +2 more | 2001-02-13 |
| 6144830 | Intermediate transfer member and electrophotographic apparatus including same | Takashi Kusaba, Hiroyuki Kobayashi, Akihiko Nakazawa, Akira Shimada, Atsushi Tanaka +1 more | 2000-11-07 |
| 6094556 | Intermediate transfer member and image forming apparatus | Atsushi Tanaka, Akira Shimada, Hiroyuki Osada, Tsunenori Ashibe, Hidekazu Matsuda | 2000-07-25 |
| 6078773 | Image forming apparatus and intermediate transfer member | Akira Shimada, Hiroyuki Osada, Atsushi Tanaka, Tsunenori Ashibe | 2000-06-20 |
| 6077638 | Toner and developer for developing electrostatic image, process for production thereof and image forming method | Hirohide Tanikawa, Toshiaki Nakahara, Keita Nozawa, Kazuyoshi Hagiwara, Rika Shinba +2 more | 2000-06-20 |
| 5995794 | Image forming apparatus and intermediate transfer belt | Hiroyuki Osada, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe | 1999-11-30 |
| 5978638 | Intermediate transfer belt and image forming apparatus adopting the belt | Atsushi Tanaka, Akira Shimada, Hiroyuki Osada, Tsunenori Ashibe | 1999-11-02 |
| 5605778 | Toner with wax component for developing electrostatic image | Tsutomu Onuma, Satoshi Matsunaga, Manabu Ohno | 1997-02-25 |
| 5447813 | Toner for developing electrostatic image and image forming method | Kazuyoshi Hagiwara, Toshiaki Nakahara, Masami Fujimoto, Kiyoshi Mizoe | 1995-09-05 |
| 5436701 | Image forming method, image forming apparatus and apparatus unit | Toshiaki Nakahara, Kazuyoshi Hagiwara, Masami Fujimoto, Kiyoshi Mizoe | 1995-07-25 |
| 5418102 | Developer for developing electrostatic image, image forming method, toner imager fixing method and image forming apparatus | Takaaki Kotaki, Yoshihiko Hyosu, Ryoichi Fujita, Makoto Kanbayashi | 1995-05-23 |
| 5250382 | Toner for developing electrostatic image, and image fixing method | Takaaki Kohtaki, Tsuyoshi Takiguchi | 1993-10-05 |