Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8620599 | Membrane tension measuring apparatus | Hiroshi Ohmori, Sang-Wook Jin, Fumiyoshi Takeda, Jun Fujiwara | 2013-12-31 |
| 5181900 | Method of fabricating a flexible container | Sumio Watanabe | 1993-01-26 |
| 5139346 | Flexible container | Sumio Watanabe | 1992-08-18 |
| 4702191 | Sail device | Hirokazu Minami, Matsuo Ota | 1987-10-27 |