Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919020 | Method of manufacturing plastic lens, gasket for molding plastic lens, casting mold for molding plastic lens, casting jig for plastic lens starting material liquid, holding member for plastic lens casting mold, and plastic lens manufacturing apparatus | Akira Hamanaka, Hideki Kobayashi, Yasuhisa Okamoto, Nobuhiko Takeda | 2011-04-05 |