Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7569320 | Polyester resin for toner, toner for developing electrostatic charge image and method for forming image | Yasushi Nakanishi, Akira Yamane, Yoshinori Onose | 2009-08-04 |
| 7141344 | Electrostatic image developer and image-forming process | Yasushi Nakanishi, Shigehiro Hayashi | 2006-11-28 |
| 6858366 | Toner for electrostatic development, charge controlling agent for the toner and process for producing the same | Tomomi Yamazaki | 2005-02-22 |
| 6756170 | Electrostatic image developing toner and image-forming method using the same | Yasushi Nakanishi, Takaaki Hikosaka | 2004-06-29 |
| 6515158 | Toner for developing electrostatic latent image, charge control agent for use in the toner, and process for preparing the charge control agent | Koichi Ogawa, Katsuhiko Mizushima | 2003-02-04 |
| 6261731 | Toner for developing electrostatic latent image | Koichi Ogawa, Katsuhiko Mizushima | 2001-07-17 |
| 5705304 | Photo-removable electrophotographic toners using phenyl isopropenyl ketone | Kazuyuki Sugita, Ken-ichi Kishi | 1998-01-06 |