Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7378210 | Electrophotographic toner and manufacturing method thereof, polyester resin for electrophotographic toner and manufacturing method thereof, electrophotographic developer and image forming method | Satoshi Hiraoka, Yasuo Yamamoto, Yasuo Matsumura | 2008-05-27 |
| 7368214 | Electrostatic latent image developing toner and manufacturing method thereof | Takao Ishiyama, Hiroshi Nakazawa, Masanobu Ninomiya, Yutaka Sugizaki, Shinpei Takagi | 2008-05-06 |
| 6558864 | Toner for developing electrostatic image, method for producing the same, electrostatic image developer, method for forming image and image forming apparatus | Takao Ishiyama, Hiroshi Takano, Yasuo Kadokura, Yasuo Matsumura, Masaaki Suwabe +1 more | 2003-05-06 |
| 6416918 | TONER FOR DEVELOPING ELECTROSTATIC IMAGE, PROCESS FOR PRODUCING THE SAME, FINE RESIN PARTICLE DISPERSION, RELEASING AGENT DISPERSION, DEVELOPER FOR DEVELOPING ELECTROSTATIC IMAGE, AND PROCESS FOR FORMING IMAGE | Yasuo Matsumura, Hisae Yoshizawa, Masaaki Suwabe, Yasuo Kadokura | 2002-07-09 |
| 6391510 | Toner for developing electrostatic latent image, process for producing the same, developer and process for producing image | Takao Ishiyama, Manabu Serizawa, Takeshi Shoji, Yasuo Matsumura | 2002-05-21 |
| 6340549 | Toner for the development of electrostatic image, process for the preparation thereof, developer for the development of electrostatic image and process for the formation of image | Yasuo Matsumura, Hisae Yoshizawa, Masaaki Suwabe | 2002-01-22 |
| 6294302 | Toner for developing static image, developer for developing static image, and image forming method | Manabu Serizawa, Takao Ishiyama, Takeshi Shoji, Yukiko Watanabe | 2001-09-25 |
| 6153346 | Electrostatic image developing toner, process for the production thereof, electrostatic image developer and process for the formation of image | Shuji Sato, Yasuo Kadokura, Masaaki Suwabe, Hisae Yoshizawa, Yasuo Matsumura +1 more | 2000-11-28 |