Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739720 | PROCESS FOR PRODUCING ALICYCLIC (METH)ALLYI ESTER MONOMER, ALICYCLIC (METH)ALLYL ESTER COMPOUND, PRODUCTION PROCESS OF THE COMPOUND, PLASTIC LENS COMPOSITION CONTAINING THE COMPOUND, PLASTIC LENS OBTAINED BY CURING THE COMPOSITION, AND PRODUCTION PROCESS OF THE PLASTIC LENS | Tsuneo Tajima, Hiroshi Uchida | 2004-05-25 |
| 6740721 | Plastic lens composition, plastic lens, and process for producing the plastic lens | Tsuneo Tajima, Kazufumi Kai, Hiroshi Uchida | 2004-05-25 |