Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6103828 | Macromolecular material composition and a modifier for macromolecular material | Yuji Kobayashi, Takayuki Saitoh, Atsushi Fujioka, Akihiro Kobayashi, Kiyotaka Mashita +2 more | 2000-08-15 |
| 5968409 | Method for preparing trimer of .alpha.-methyl styrene or derivatives thereof | Kiyotaka Mashita, Atsushi Fujioka, Takayuki Saitoh, Akihiro Kobayashi | 1999-10-19 |
| 5939593 | Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-indane and method for preparing the same | Atsushi Fujioka, Kiyotaka Mashita, Takayuki Saito, Akihiro Kobayashi | 1999-08-17 |
| 5663264 | Transparent resin and plastic lens | Toshiyasu Kawai, Minoru Suzuki, Hiromasa Kawai | 1997-09-02 |
| 5583191 | Plastic lens | Toshiyasu Kawai, Minoru Suzuki, Hiromasa Kawai | 1996-12-10 |
| 5559200 | Resin for plastic lens | Minoru Suzuki, Akihiro Sasaki, Hiromasa Kawai | 1996-09-24 |
| 5449731 | Resin for plastic lens | Minoru Suzuki, Akihiro Sasaki, Hiromasa Kawai | 1995-09-12 |
| 5155190 | Process for producing poly methyl methacrylate/N-substituted maleimide optical resin | Takaaki Okinaka, Kiyomi Sugawara, Hiromasa Kawai | 1992-10-13 |