Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158601 | Wear-resistant iron-based sintered alloy and method | Akira Fujiki, Kenzo Morita, Akiyoshi Ishibashi | 1992-10-27 |
| 5080713 | Hard alloy particle dispersion type wear resisting sintered ferro alloy and method of forming the same | Akiyoshi Ishibashi, Makoto Abe, Akira Fujiki, Kimitsugu Kiso, Takaaki Ito | 1992-01-14 |
| 4233073 | Iron-base sintered alloy for valve seat and method of making the same | — | 1980-11-11 |
| 4204031 | Iron-base sintered alloy for valve seat and its manufacture | Takashi Oda, Fumio Kiyota | 1980-05-20 |