Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5892065 | Method for producing purified epoxy compound | Takami Ono, Hisao Ikeda, Motohiko Hidaka | 1999-04-06 |
| 4970336 | Method of purifying .alpha.-substituted acetic acids | Yoshikazu Yoshioka, Isao Hashiba | 1990-11-13 |