Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061589 | Toner for electrophotography | Seijin Shindoh | 1991-10-29 |
| 4824751 | Toners for electrophotographic process containing chromium complex salts | Toshihiko Matuura, Kenzi Sawaki, Seizin Shindo | 1989-04-25 |