Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11846009 | Hard particle powder for sintered body | Iwane NAGASE, Fumito Mizuno, Yuji NAGAOKA, Katsuaki Sato | 2023-12-19 |
| 10428700 | Highly wear-resistant valve seat for use in internal combustion engine | Hiroshi Oshige, Kenichi Sato | 2019-10-01 |
| 10287933 | Assembly of internal combustion engine valve and valve seat | Hiroshi Oshige, Kiyoshi Suwa, Kenichi Sato, Kouji Kunitake, Ryouichi Yoshino | 2019-05-14 |
| 10273838 | Valve seat insert for internal combustion engine having excellent wear resistance | Hiroshi Oshige, Seisuke Takaki, Tomoki Okita, Keisuke Ishii, Toshiyuki Sawada +1 more | 2019-04-30 |
| 9803268 | Iron-base sintered alloy material for valve seat insert and method for manufacturing the same | Hiroshi Oshige | 2017-10-31 |