Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5747209 | Toner for developing electrostatic images containing aromatic hydroxycarboxylic acid and metal compound of the aromatic hydroxycarboxylic acid | Kenji Okado, Masaaki Taya, Ryoichi Fujita, Makoto Kanbayashi, Kohji Inaba +4 more | 1998-05-05 |
| 5733702 | Image forming method employing toner with external additive | Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Yasuhiro Ichikawa | 1998-03-31 |
| 5700617 | Toner for developing electrostatic images and charge-controlling agent | Kenji Okado, Masaaki Taya, Ryoichi Fujita, Makoto Kanbayashi, Wakashi Iida +1 more | 1997-12-23 |
| 5670288 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Makoto Kanbayashi, Yasuhiro Ichikawa +1 more | 1997-09-23 |
| 5665513 | Toner for developing electrostatic charged image | Tetsuya Ida, Masaaki Taya | 1997-09-09 |
| 5637432 | Toner for developing electrostatic image comprising titanium oxide particles | Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Yasuhiro Ichikawa | 1997-06-10 |
| 5635326 | Electrostatic image-developing toner, fine powdery titanium oxide, and hydrophobic fine powdery titanium oxide | Makoto Kanbayashi, Wakashi Iida | 1997-06-03 |
| 5604071 | Toner for developing electrostatic image | Kenji Okado, Ryoichi Fujita | 1997-02-18 |
| 5534981 | Image forming apparatus and developer for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai +3 more | 1996-07-09 |
| 5529865 | Image forming method using dry color toner and press-contact fixing method | Makoto Kanbayashi, Wakashi Iida | 1996-06-25 |
| 5512402 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita, Makoto Kanbayashi, Yasuhiro Ichikawa +1 more | 1996-04-30 |
| 5510223 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Eiichi Imai, Tetsuya Kuribayashi +2 more | 1996-04-23 |
| 5437949 | Color toner and process for its production | Makoto Kanbayashi, Wakashi Iida | 1995-08-01 |
| 5422707 | Toner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatus | Tsutomu Kukimoto, Koichi Tomiyama, Hiroshi Yusa, Tetsuhito Kuwashima | 1995-06-06 |
| 5392103 | Image forming method comprising electrostatic transfer of developed image and corresponding image forming apparatus | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Eiichi Imai, Tetsuya Kuribayashi +2 more | 1995-02-21 |
| 5307122 | Image forming apparatus apparatus unit facsimile apparatus and developer comprising hydrophobic silica fine powder for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai +3 more | 1994-04-26 |
| 5288579 | Developer for developing electrostatic image, image forming apparatus, apparatus unit and facsimile apparatus | Katsuhiko Tanaka, Kazuyoshi Hagiwara, Rika Doi | 1994-02-22 |
| 5262267 | Magnetic developer, image forming method and image forming apparatus | Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai | 1993-11-16 |
| 5250382 | Toner for developing electrostatic image, and image fixing method | Minoru Shimojo, Takaaki Kohtaki | 1993-10-05 |
| 5217836 | Toner for developing electrostatic images | Tsutomu Kukimoto, Koichi Tomiyama, Hiroshi Yusa, Tetsuhito Kuwashima | 1993-06-08 |
| 5210617 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai | 1993-05-11 |
| 5180649 | Toner having crosslinkages and method of fixing same | Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tetsuhito Kuwashima | 1993-01-19 |
| 5139914 | Developer for developing electrostatic images and image forming apparatus | Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai | 1992-08-18 |
| 5137796 | Magnetic developer, comprising spherical particles magnetic | Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai | 1992-08-11 |