Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925461 | Process for separating nitrogen gas by pressure swing adsorption system | Takeshi Tamaru, Tetsuhiko Matsuura | 1990-05-15 |
| 4731283 | Waterproof cloth and process for production thereof | Isamu Sakane, Satuski Kawauchi, Minoru Maekawa | 1988-03-15 |