Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9266988 | Fumaric acid diester based resin for retardation film and retardation film comprising the same | Kenichi Makita, Shinsuke Toyomasu, Tohru Doi | 2016-02-23 |
| 9268076 | Optical compensation layer, optical compensation film, and processes for producing these | Toru Doi, Shinsuke Toyomasu, Sou Ozaki | 2016-02-23 |
| 8545970 | Optical compensation film and retardation film | Toru Doi, Naoto Obara | 2013-10-01 |
| 7129314 | Aromatic amide block copolymer and process of producing the same | Hiroshi Miyata, Satoru Kondo, Hiroshi Yamakawa, Katsuaki Mori | 2006-10-31 |
| 6890996 | Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same | Toshiya Higashino | 2005-05-10 |
| 5760143 | Ester-amide block copolymer and process for producing same | Yuji Kubo, Hiroshi Yamakawa, Isamu Kirikihira | 1998-06-02 |