Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525541 | Method for modifying rubbers | Nagatoshi Sugi | 1985-06-25 |
| 4424306 | Method for modifying cis-1,4-polyisoprene rubber | Toshihiro Fujii, Nagatoshi Sugi | 1984-01-03 |
| 4412031 | Modified rubber composition employing a compound containing a carboxyl and an aldehyde group | Yoshitsugu Hirokawa, Haruki Kawada, Toshihiro Fujii, Nagatoshi Sugi, Hiroaki Hasegawa +1 more | 1983-10-25 |
| 4412041 | Process for modifying rubbers employing a compound containing a carboxyl and an aldehyde group | Yoshitsugu Hirokawa, Haruki Kawada, Toshihiro Fujii, Nagatoshi Sugi, Hiroaki Hasegawa +1 more | 1983-10-25 |