Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865979 | Novel bacteriophage and method for breeding thereof | Tsutomu Masuda, Yasuji Koyama, Satoshi Kitao | 1989-09-12 |
| 4834766 | Method for preventing scale adhesion | Yoshiteru Sando, Hiroshi Ishidoshiro | 1989-05-30 |