Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642228 | Resin-molded lens having no sink marks and process for producing same | Hirokazu Yanagihara | 1997-06-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642228 | Resin-molded lens having no sink marks and process for producing same | Hirokazu Yanagihara | 1997-06-24 |