Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188395 | Waterproof recording material having ground patterns and its manufacturing method | Hiroshi Kawahara, Mitsuru Kobayashi, Isao Tokuno, Shuzo Ohara | 1993-02-23 |
| 4937110 | Laminated material for hot and cold cups and its manufacturing method | Shuzo Ohara, Ryoichi Kitamura, Hiroshi Kawahara, Yoshimi Enomoto | 1990-06-26 |