Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879281 | Artificial saliva composition | Ken-ichiro Shibasaki, Hiroshi Itoi, Shouichi Ohkubo | 1989-11-07 |
| 4868159 | Novel substances KS-501 and KS-502 and process for their preparation | Satoshi Nakanishi, Koji Yamada, Isao Kawamoto, Katsuhiko Ando, Toru Yasuzawa +1 more | 1989-09-19 |