Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7949535 | User authentication system, fraudulent user determination method and computer program product | Toshiyuki Ohta, Maiko Hirahara | 2011-05-24 |
| 5208399 | Method for producing allyl chloride | Takanori Miyake, Makoto Hanaya, Junichi Kawamura | 1993-05-04 |