Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009944 | Lightsafe masking film | Hiroshi Maruyama, Naohiko Kiryu, Etsuko Minezaki, Hisashi Shimokawahara | 1991-04-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009944 | Lightsafe masking film | Hiroshi Maruyama, Naohiko Kiryu, Etsuko Minezaki, Hisashi Shimokawahara | 1991-04-23 |