Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11866648 | Process for producing polymerizable composition for optical materials | Yuuki KASORI | 2024-01-09 |
| 11248077 | Polymerizable composition for optical material and molded product | Shinichiro Kadowaki, Masaru Kawaguchi | 2022-02-15 |
| 10921489 | Polymerizable composition for optical material, optical material obtained from the composition, and plastic lens | Masaru Kawaguchi | 2021-02-16 |
| 10344116 | Polymerizable composition for optical material and use thereof | — | 2019-07-09 |
| 10308756 | Polymerizable composition for optical material and use thereof | — | 2019-06-04 |
| 10202483 | Polymerizable composition, molded product, and use thereof | Naoki Shinohara, Dong Gyu Jang, Soo Gyun Roh | 2019-02-12 |
| 10131767 | Polymerizable composition for optical material, optical material obtained from polymerizable composition, and manufacturing method of optical material | Shinsuke Ito, Kouji Suesugi, Shigetoshi Kuma, Tatsuya Ogawa, Toshiya Hashimoto +1 more | 2018-11-20 |
| 9678246 | Polymerizable composition for optical material | Tatsuya Ogawa, Toshiya Hashimoto, Mamoru Tanaka, Shigetoshi Kuma | 2017-06-13 |
| 9482787 | Polymerizable composition | Toshiya Hashimoto, Koya Kojima | 2016-11-01 |
| 9464154 | Process for producing polyurethane resin | Tatsuya Ogawa, Toshiya Hashimoto, Mamoru Tanaka, Shigetoshi Kuma | 2016-10-11 |
| 9290656 | Polymerizable composition for polythiourethane optical material | Hidetoshi Hayashi, Masanori Iwazumi, Mamoru Tanaka, Seiichi Kobayashi | 2016-03-22 |
| 8586694 | Polymerization catalyst for polythiourethane-based optical material, polymerizable composition containing the catalyst, optical material obtained from the composition, and method for preparing the optical material | Masanori Iwazumi, Mamoru Tanaka, Hidetoshi Hayashi, Seiichi Kobayashi | 2013-11-19 |
| 8586695 | Polymerization catalyst for polythiourethane optical material, polymerizable composition containing the same, polythiourethane resin obtained from the composition, and process for producing the resin | Masanori Iwazumi, Hidetoshi Hayashi, Seiichi Kobayashi | 2013-11-19 |
| 8461238 | Process for producing internal mold release agent for optical material, internal mold release agent for optical material, and polymerizable composition including the same | Mamoru Tanaka | 2013-06-11 |
| 8022163 | Internal mold release agent for production of polythiourethane optical material | Masanori Iwazumi, Hidetoshi Hayashi, Mamoru Tanaka, Seiichi Kobayashi | 2011-09-20 |
| 7354989 | Thioepoxy based polymerizable composition and method for production thereof | Hiroyuki Morijiri, Seiichi Kobayashi, Chitoshi Shimakawa, Akinori Ryu | 2008-04-08 |
| 6365707 | Polymerizable composition and process for producing optical resin comprising the same | Akinori Ryu, Seiichi Kobayashi, Hiroyuki Morijiri, Chitoshi Shimakawa, Koju Okazaki +1 more | 2002-04-02 |