Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417273 | Monomer composition for optical plastic optical material, optical plastic material, and lens | Katsuyoshi Tanaka | 2002-07-09 |
| 5936703 | Alkoxysilane compound, surface processing solution and contact lens | Tuyoshi Miyazaki | 1999-08-10 |
| 5807942 | Polymerized product of protein and process for producing it | Shujiro Sakaki, Satoshi Yamada, Motohiro Mitani, Kenshiro Shuto | 1998-09-15 |
| 5594090 | Alkylene sulfide group-containing prepolymer, polymerizable composition and optical material | Tsuyoshi Miyazaki, Hiromitsu Nakajima, Shuji Ichikawa, Kazuo Matsuyama, Koji Kamenosono +1 more | 1997-01-14 |
| 5466853 | Diester monomer, its polymer, water-containing soft contact lens, and processing solution for contact lens | Takeo Matsumoto, Nobuharu Nakada, Nobuo Nakabayashi, Kazuhiko Ishihara | 1995-11-14 |
| 5461433 | Highly hydrous soft contact lens and a treating solution for contact lenses | Nobuo Nakabayashi, Kazuhiko Ishihara, Yoshishige Murata, Nobuharu Nakada, Takeo Matsumoto | 1995-10-24 |
| 5274059 | Maleimide copolymer and process for preparing same | Kenji Kato, Kazunori Doiuchi, Seigo Kinoshita, Yukinori Haruta | 1993-12-28 |
| 5179162 | N-substituted maleimide polymer composition | Kenji Kato, Kazunori Doiuchi, Seigo Kinoshita, Yukinori Haruta | 1993-01-12 |
| 5164451 | Maleimide copolymer, maleimide block copolymer and method for producing maleimide block copolymer | Kenji Kato, Kazunori Doiuchi, Yukinori Haruta, Kazuyoshi Aoshima | 1992-11-17 |
| 5140083 | Maleimide copolymer and process for preparing same | Kenji Kato, Kazunori Doiuchi, Seigo Kinoshita, Yukinori Haruta | 1992-08-18 |
| 4930879 | Synthetic resin lens | Takeaki Iryo, Satoshi Kubota, Yoshio Sano, Yoshishige Murata | 1990-06-05 |
| 4855374 | Optical resin from diallyl esters | Yoshishige Murata, Naoyuki Amaya, Takayuki Otsu, Masafumi Nisimura | 1989-08-08 |