Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11549408 | Iron-based sintered alloy valve seat for internal combustion engine | Kiyoshi Suwa, Katsuaki Ogawa, Hiroshi Oshige, Kenichi Sato | 2023-01-10 |
| 10605374 | Valve seat insert excellent in wear resistance made of iron-base sintered alloy for internal combustion engines, and assembly of valve seat insert and valve | Seisuke Takaki, Hiroshi Oshige | 2020-03-31 |