Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849564 | Finely divided silicone rubber additive material and method for producing same | Mitsuo Hamada, Katsuyoshi Nakasuji | 1989-07-18 |
| 4824616 | Method for the production of spherical silicone gel particles | Mitsuo Hamada | 1989-04-25 |