Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839443 | Polysiloxane containing hydroxyl groups and a silicone-modified polyurethane using the same | Yoshinori Akutsu, Takahiro Saho, Nobumasa Ohtake, Hirofumi Yasuda, Tamio Kimura | 1989-06-13 |
| 4822850 | Modified polyorganosiloxane containing isocyanate group and process for preparing the same | Hirofumi Yashuda, Takahiro Saho, Nobumasa Ohtake | 1989-04-18 |