Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861886 | Method for isomerization of trans-form 2-methylspiro (1,3-oxathiolane-5,3') q | Takahiro Haga, Itaru Shigehara, Toru Koyanagi, Kazutoshi Hara | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861886 | Method for isomerization of trans-form 2-methylspiro (1,3-oxathiolane-5,3') q | Takahiro Haga, Itaru Shigehara, Toru Koyanagi, Kazutoshi Hara | 1989-08-29 |