Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8213844 | Developing device and image forming apparatus | Toshiyuki Sakai | 2012-07-03 |
| 8086151 | Developing roller specific for mono-component developing apparatus | Toshihide Taniguchi, Toshiyuki Sakai, Norikazu Okabe, Hiromasa Ueno | 2011-12-27 |
| 6306552 | Carrier having specified bet specific surface area and dynamic current value and two-component developer thereof | Hideaki Yasunaga, Makoto Kobayashi, Koichi Takenaka, Osamu Maeda | 2001-10-23 |
| 6165664 | Two-component developing agent and image forming method using such a developing agent | Makoto Kobayashi, Hideaki Yasunaga, Koichi Takenaka | 2000-12-26 |
| 6130019 | Binder carrier | Makoto Kobayashi, Koichi Takenaka, Hideaki Yasunaga, Hiroyuki Fukuda, Haruhiko Furukawa +2 more | 2000-10-10 |
| 6099999 | Binder carrier comprising magnetic particles and specific resin | Koichi Takenaka, Makoto Kobayashi, Hideaki Yasunaga, Hiroyuki Fukuda | 2000-08-08 |
| 6007956 | Carrier and developer for developing electrostatic latent images | Hideaki Yasunaga, Koichi Takenaka, Hiroshi Shibano | 1999-12-28 |
| 6001526 | Binder carrier containing ethylenic unsaturated nitrile copolymer as binder resin | Makoto Kobayashi, Koichi Takenaka, Hideaki Yasunaga, Hiroyuki Fukuda | 1999-12-14 |
| 5962175 | Binder-type carrier and method of manufacturing same | Yoshiaki Tanaka, Hideaki Yasunaga | 1999-10-05 |
| 5849452 | developing method using an oscillated electric field and including a specified toner and carrier | Koichi Takenaka, Makoto Kobayashi, Hideaki Yasunaga | 1998-12-15 |
| 5834152 | Carrier and developer for electrophotographic latent image development, and image forming method using same | Hideaki Yasunaga, Koichi Takenaka, Hiroshi Shibano | 1998-11-10 |
| 5736287 | Development method | Makoto Kobayashi, Hideaki Yasunaga, Koichi Takenaka | 1998-04-07 |
| 5689781 | Carrier for electrostatic latent image developing | Hiroshi Shibano, Koichi Takenaka, Hideaki Yasunaga | 1997-11-18 |
| 5472817 | Carrier for development of electrostatic latent images | Hiroshi Shibano, Koichi Takenaka | 1995-12-05 |