Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349065 | Photochromic compound | Takashi Tanaka, Satoshi Imura, Kenji Tanaka | 1994-09-20 |
| 5214116 | Resin derived from sulfur-containing unsaturated compound and having a high refractive index | Singo Matsuoka, Masahiro Amano | 1993-05-25 |
| 5130058 | Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound | Takashi Tanaka, Kenji Tanaka, Satoshi Imura | 1992-07-14 |
| 5106998 | Photochromic compound, composition and use thereof | Takashi Tanaka, Satoshi Imura, Kenji Tanaka | 1992-04-21 |
| 4960678 | Photochromic compounds | Takashi Tanaka, Satoshi Imura | 1990-10-02 |
| 4882438 | Photochromatic compounds | Takashi Tanaka, Satoshi Imura | 1989-11-21 |
| 4647639 | Monomeric mixture for cured polymeric material used in organic glass | Kaoru Miura, Ikumi Kawaguchi | 1987-03-03 |
| 4602075 | Monomeric mixture for cured polymeric material used in organic glass | Kaoru Miura, Ikumi Kawaguchi | 1986-07-22 |
| 4369298 | Novel cured resin, process for production thereof, and lens composed of said resin from bis(alkyleneoxyphenyl)-diacrylate, bis(alkyleneoxyphenyl)diallyl ether, bis(alkyleneoxyphenyl)diallyl carbonate monomers | Kazuo Shikata | 1983-01-18 |