Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882396 | Siloxane-amide block copolymer and process for producing the same | Michio Zenbayashi | 1989-11-21 |
| 4877855 | Siloxane-amide block copolymer and process for producing the same | Michio Zenbayashi, Chiyuki Shimizu | 1989-10-31 |