Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822384 | Oxygen enriching apparatus with means for regulating oxygen concentration of oxygen enriched gas | Akira Kato, Masamichi TAMADA | 1989-04-18 |
| 4567721 | Method for producing textured yarn | Toshimasa Kuroda, Yoshihiko Maezawa | 1986-02-04 |