Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8974674 | Method for producing ammonium tungstate aqueous solution | Hideaki Ito, Takeshi Itakura, Yoshiharu Yamamoto, Kazuo Sasaya, Fumiatsu Sato +2 more | 2015-03-10 |
| 8801816 | Cemented carbide and cutting tool using same | Kazuhiro Hirose, Hideki Moriguchi, Akihiko Ikegaya, Kazuo Sasaya, Yoshiharu Yamamoto | 2014-08-12 |