Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888436 | Process for preparing aminopropyl alkoxy silanes | Haruko Takai, Kazutoshi Takatsuna, Nobukazu Okamoto, Yoshiharu Okumura, Chihiro Imai | 1989-12-19 |
| 4820674 | Process for preparing a hydrosilylation catalyst | Yoshiharu Okumura, Chihiro Imai, Nobukazu Okamoto | 1989-04-11 |