Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6832946 | Lens grinding method and lens grinding apparatus | — | 2004-12-21 |
| 6742272 | Lens shape measuring apparatus | Yasuhito Eto, Takeshi Nakamura | 2004-06-01 |
| 6688944 | Spectacle lens chamfering data preparing method, spectacle lens chamfering method, spectacle lens chamfering data preparing apparatus, and spectacle lens chamfering apparatus | Takahiro Watanabe, Toshihiro Iwai | 2004-02-10 |
| 6672944 | Initial position setting method for grinding device | Yasuhito Eto, Kenichi Watanabe | 2004-01-06 |