Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419254 | Method of protecting silver contacts | Shuhei Kosaka | 1983-12-06 |
| 4412041 | Process for modifying rubbers employing a compound containing a carboxyl and an aldehyde group | Shizuo Kitahara, Yoshitsugu Hirokawa, Haruki Kawada, Nagatoshi Sugi, Hiroaki Hasegawa +1 more | 1983-10-25 |
| 4412031 | Modified rubber composition employing a compound containing a carboxyl and an aldehyde group | Shizuo Kitahara, Yoshitsugu Hirokawa, Haruki Kawada, Nagatoshi Sugi, Hiroaki Hasegawa +1 more | 1983-10-25 |
| 4338224 | Water proofing compositions for cement mortar or concrete | Sekiji Yokota | 1982-07-06 |
| 4244911 | Mica-silicone composites | Mitsuo Ishizaka | 1981-01-13 |
| 4193831 | Water proofing compositions for cement mortar or concrete and method employing same | Sekiji Yokota | 1980-03-18 |