Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11225540 | Copolymer and optical film using same | Saki Ito | 2022-01-18 |
| 9512284 | Fumaric acid diester-cinnamic acid ester-based copolymer, production method thereof and film using the same | Takahiro Kitagawa, Tohru Doi, Kota SAKAGUCHI, Akira Inui, Masayasu Ito | 2016-12-06 |
| 9321870 | Diisopropyl fumarate-cinnamic acid derivative copolymer and retardation film using the same | Takahiro Kitagawa, Shinsuke Toyomasu | 2016-04-26 |
| 6200076 | Cutting tool and method for producing the same | Seiji Matsuura, Kazuhiro Kaneko | 2001-03-13 |
| 6058807 | Cutting tool and method for producing the same | Seiji Matsuura, Kazuhiro Kaneko | 2000-05-09 |