Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8999466 | Multilayer stretched polyamide film | Norio Uehara, Naoyuki Maruichi, Atsushi Nakagawa | 2015-04-07 |
| 8481137 | Multilayered stretched film with barrier property | Norio Uehara, Naoyuki Maruichi | 2013-07-09 |
| 4255557 | Preparing polycarbonate oligomers by reacting phosgene with an aqueous solution containing a salt of a dihydric phenol in an organic solvent which comprises previously cooling the aqueous solution and carrying out the reaction at a low temperature | Takeaki Megumi, Sigeo Kondoh | 1981-03-10 |
| 4184911 | Process for producing powdery polycarbonate from a polycarbonate solution | Hiroyuki Koda, Kunio Hamaya, Yutaka Kojima, Shiro Tsuchiya, Shinichi Fukuda +1 more | 1980-01-22 |