Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7863354 | Spectacle lens | Seiichi Tanabe, Moritoshi Matsumoto | 2011-01-04 |
| 7786195 | Spectacle lens and polycarbonate resin molding material for optical moldings | Seiichi Tanabe | 2010-08-31 |
| 7473723 | Spectacles lens and production method thereof | Keizo Ikari | 2009-01-06 |