Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8623464 | Process for production of water-absorbing articles | Shigeo Hamaguchi, Yoshinori Akamatsu, Shinobu Arata | 2014-01-07 |
| 8106124 | Antifog coating and antifog article | Yoshinori Akamatsu | 2012-01-31 |