Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885057 | Method for treating synthetic pulp particles, and pulp particles composed of synthetic polymer | Michio Yamamoto, Tsutomu Kiriyama, Noriaki Sasaki, Yoshitaka Sakamoto | 1989-12-05 |
| 4814278 | Culture apparatus and method | Kimihiko Hamamoto, Michiyuki Tokashiki, Yataro Ichikawa, Takami Arai | 1989-03-21 |