Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5837646 | Reversible thermal recording medium | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1998-11-17 |
| 5837647 | Reversible thermal recording medium | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1998-11-17 |
| 5837348 | Reversible thermal recording medium and method of producing the same | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1998-11-17 |
| 5672559 | Reversible thermal recording medium and method of producing the same | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1997-09-30 |
| 5658845 | Reversible thermal recording medium and method of producing the same | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1997-08-19 |
| 5637551 | Reversible thermal recording medium and method of producing same | Niro Watanabe, Keiki Yamada, Masaru Ohnishi | 1997-06-10 |
| 5278129 | Rewritable thermosensitive recording medium | Niro Watanabe, Atsushi Kijima, Susumu Watanabe | 1994-01-11 |