Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532323 | Method for production of absorbent resin | Katsuhiro Kajikawa, Kinya Nagasuna, Yoshio Irie | 1996-07-02 |
| 5422405 | Method for production of absorbent resin | Yorimichi Dairoku, Kinya Nagasuna, Toru Yanase, Yoshihiko Masuda | 1995-06-06 |
| 5281683 | Process for producing water-absorbent resin | Yoshio Irie | 1994-01-25 |