Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887370 | Ski boot made of hard synthetic resin | — | 1989-12-19 |
| 4841055 | Desmosine derivatives and reagent for preparing artificial antigens | Takashi Matsumoto, Sigenobu Mizusaki | 1989-06-20 |