Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6017670 | Electrophotographic toner and process for the preparation thereof | Toyomi Hashizume, Shoji Okuno, Yukiko Soma, Hitoshi Takayanagi, Minoru Nomura +1 more | 2000-01-25 |
| 5885743 | Electrophotographic toner and process for the preparation thereof | Hitoshi Takayanagi, Hiroko Sakurai, Kazuo Itoya, Kinji Shinzo, Yukiko Soma +4 more | 1999-03-23 |