Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085908 | Lightsafe masking film | Shinichi Sano, Hiroshi Maruyama | 1992-02-04 |
| 5009944 | Lightsafe masking film | Hiroshi Maruyama, Naohiko Kiryu, Etsuko Minezaki, Susumu Tagashira | 1991-04-23 |