Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231505 | Rewritable recording display apparatus and method of erasing record | Niro Watanabe, Masashi Tamura, Masaru Ohnishi, Keiki Yamada, Takashi Hiroishi +1 more | 1993-07-27 |
| 5178669 | Composition for reversible thermal recording media | Niro Watanabe, Toyoko Shimizu | 1993-01-12 |