Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7273508 | Iron-based sintered alloy material for valve seat | Kenichi Sato, Teruo Takahashi, Tomoki Okita, Masahiro Takehana | 2007-09-25 |
| 7089902 | Sintered alloy valve seat and method for manufacturing the same | Kenichi Sato, Teruo Takahashi, Masao Ishida, Hiroyuki Oketani | 2006-08-15 |
| 6139599 | Abrasion resistant iron base sintered alloy material for valve seat and valve seat made of iron base sintered alloy | Teruo Takahashi, Kenichi Sato | 2000-10-31 |
| 5803037 | Joined type valve seat | Osamu Kawamura, Teruo Takahashi | 1998-09-08 |
| 5466276 | Valve seat made of secondary hardening-type high temperature wear-resistant sintered alloy | Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi | 1995-11-14 |
| 5273570 | Secondary hardening type high temperature wear-resistant sintered alloy | Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Osamu Kawamura, Teruo Takahashi | 1993-12-28 |