Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4526287 | Shock-resistant easily-openable vessel closure | Yasuo Kaga, Masanori Aizawa, Kazuhisa Ishibashi, Hiroshi Ueno | 1985-07-02 |
| 4397401 | Easily openable vessel closure and process for preparation thereof | Hiroshi Ueno, Masanori Aizawa, Yasuo Kaga, Kazuhisa Ishibashi | 1983-08-09 |