Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9456495 | Norbornane-2-spiro-α-cycloalkanone-α′-spiro-2″-norbornane-5,5″,6,6″-tetracarboxylic dianhydride, norbornane-2-spiro-α-cycloalkanone-α′-spiro-2″-norbornane-5,5″,6,6″-tetracarboxylic acid and ester thereof, method for producing norbornane-2-spiro-α-cycloalkanone-α′-spiro-2″-norbornane-5,5″,6,6″-tetracarboxylic dianhydride, polyimide obtained by using the same, and method for producing polyimide | Toshihiko Matsumoto | 2016-09-27 |
| 9403158 | Method for producing ester compound and palladium catalyst used in the method | Akira Shibashi, Takaya Matsumoto | 2016-08-02 |
| 9399703 | Polyimide and alicyclic tetracarboxylic dianhydride used for producing the same | Rieko Fujishiro, Miki Fujiwara, Daisuke Watanabe, Akira Shibashi, Takaya Matsumoto | 2016-07-26 |