Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889927 | Production process of phenylglycosides | Fumiaki Nakatsubo, Yoshiaki Katsura, Motoo Matukura | 1989-12-26 |
| 4881185 | Method of measuring temperature and apparatus for effecting the method | Kazuya Higeta, Hachiro Touchi | 1989-11-14 |
| 4836864 | Method of gas carburizing and hardening | Tsunao Shima, Yoshikazu Shimosato, Akira Yokoyama | 1989-06-06 |
| 4807853 | Continuous furnace for gas carburizing and hardening | Tsunao Shima, Yoshikazu Shimosato, Akira Yokoyama | 1989-02-28 |