Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9932488 | Resin composition, optical compensation film using same, and production method for same | Masayasu Ito, Takahiro Kitagawa | 2018-04-03 |
| 9370901 | Resin composition, optical compensation film using the same and production method of optical compensation film | Tohru Doi, Takahiro Kitagawa, Takashi Fukuda | 2016-06-21 |
| 9321870 | Diisopropyl fumarate-cinnamic acid derivative copolymer and retardation film using the same | Takahiro Kitagawa, Yasuyoshi Fujii | 2016-04-26 |
| 9268076 | Optical compensation layer, optical compensation film, and processes for producing these | Toru Doi, Sou Ozaki, Shinji Shimosato | 2016-02-23 |
| 9266988 | Fumaric acid diester based resin for retardation film and retardation film comprising the same | Kenichi Makita, Shinji Shimosato, Tohru Doi | 2016-02-23 |
| 7476425 | Wide-viewing angle compensation film and transmission type liquid-crystal display employing the same | Naoto Obara | 2009-01-13 |
| 7001967 | Transparent heat-resistant resin optical material and film | Yojiro Ikai | 2006-02-21 |
| 5264473 | Polyvinyl chloride based resin composition | Hiroaki Furukawa, Kazuyasu Higashiyama, Kentaro Iwanaga, Yasumi Tanaka, Tadashi Usuki +1 more | 1993-11-23 |