Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143983 | Heat resistant polyamide film | Masashi Hasegawa | 1992-09-01 |
| 4997600 | Process for preparation of thermoplastic resin sheets | Tsuguo Okumura, Shinichi Ohashi, Hitoshi Matsuda, Kazuhisa Miyashita | 1991-03-05 |
| 4698195 | Process for preparing biaxially drawn polyamide films | Tsuguo Okumura, Kazuharu Abe, Masayoshi Sugiyama, Kenji Mori | 1987-10-06 |
| 4634840 | Method of heating thermoplastic resin sheet or film | Kenji Mori, Tsuguo Okumura, Tatsufumi Hiratsuka, Masayoshi Sugiyama | 1987-01-06 |