Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948400 | Separation membranes and process for preparing the same | Yasuharu Yamada, Masaya Furukawa | 1990-08-14 |
| 4939223 | Silicon-modified polyimides | Yasuharu Yamada | 1990-07-03 |
| 4500478 | Supporting apparatus for carburetor controlling cam plate | Mitsuhiro Sanbe | 1985-02-19 |