Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7446163 | Polymerization regulator and composition for resin | Masaki Tamura, Takahiro Matsui, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi +1 more | 2008-11-04 |
| 7309794 | Method of storing episulfide compound | Akikazu Amagai, Yuichi Yoshimura, Motoharu Takeuchi, Atsuki Niimi, Hiroshi Horikoshi +1 more | 2007-12-18 |
| 7169845 | Polymerization regulators and compositions for resin | Masaki Tamura, Takahiro Matsui, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi +1 more | 2007-01-30 |
| 6225439 | Compositions for a resin | Akikazu Amagai, Katsuyuki Mizuno, Motoharu Takeuchi | 2001-05-01 |
| 6117923 | Resin for optical material | Akikazu Amagai, Motoharu Takeuchi, Katsuyuki Mizuno | 2000-09-12 |
| 5945504 | Episulfide compound | Akikazu Amagi, Nobuyuki Uemura, Motoharu Takeuchi, Kenichi Takahashi, Minoru Ohashi +1 more | 1999-08-31 |
| 5543482 | Composition for high refractive index lens comprising copolymer of vinylbenzylthio compound and a monomer copolymerizable therewith | Toru Takahashi, Hisato Abe, Kenichi Takahashi, Akira Kurata, Osamu Aoki | 1996-08-06 |
| 5395909 | Composition for high refractive index lens comprising a copolymer of a vinylbenzylthio compound | Toru Takahashi, Hisato Abe, Kenichi Takahashi, Akira Kurata, Osamu Aoki | 1995-03-07 |
| 4836859 | Method for treating contact lenses | Akihiko Konishi, Masamichi Mizukami | 1989-06-06 |