Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151960 | Polarization conversion element, polarization conversion unit, projection apparatus, and method for manufacturing polarization conversion element having a thin ultraviolet light curing adhesive layer | — | 2015-10-06 |
| 6389907 | O-ring test device | Yo Shishihara, Kunihiko Takagi, Takeshi Seto, Satoshi Kinoshita | 2002-05-21 |
| 6007201 | Multifocal contact lens | Osamu Wada, Toshihide Shinohara, Akira Komatu, Osamu Yokoyama | 1999-12-28 |
| 5541678 | Multifocal contact lens and method and molding die for manufacturing contact lens | Toshihide Shinohara, Osamu Wada, Osamu Kamiwaki | 1996-07-30 |