Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9072983 | Vinyl sulfonic acid, polymer thereof, and production method thereof | Hiroshi Akikaze, Kazuhiko Isshiki | 2015-07-07 |
| 8299294 | Process for producing vinyl sulfonic acid | Hiroshi Akikaze | 2012-10-30 |