Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8640669 | Piston for an internal combustion engine | Fumikazu Nakazawa, Akito Tanihata, Naoko Sato | 2014-02-04 |
| 7667074 | Method for regenerating catalyst for the production of methacrylic acid and process for preparing methacrylic acid | Yoshihiko Ohishi, Eiichi Shiraishi | 2010-02-23 |