Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096944 | Process for preparing particles of high water-absorbent resin | Tetsuo Moriya, Susumu Kondo | 1992-03-17 |
| 4981939 | Binder for a toner comprising a polyester from rosin or hydrogenated rosin | Akira Matsumura, Sadao Shigematsu | 1991-01-01 |
| 4968575 | A toner composition comprising a rosin-containing polyester | Akira Matsumura, Toshiyuki Kusuda, Sadao Shigematsu | 1990-11-06 |