Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481970 | Heat resistant alloy for use as material of engine valve | Akihiro Toji, Toshihiro Uehara, Shoichi Nakaya, Katsuaki Sato | 2009-01-27 |
| 5466276 | Valve seat made of secondary hardening-type high temperature wear-resistant sintered alloy | Katsuaki Sato, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi, Arata Kakiuchi | 1995-11-14 |
| 5273570 | Secondary hardening type high temperature wear-resistant sintered alloy | Katsuaki Sato, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi, Arata Kakiuchi | 1993-12-28 |