Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363662 | Abrasion resistant ferro-based sintered alloy | Takeshi Hiraoka, Shigeru Urano | 1982-12-14 |
| 4360383 | Abrasion resistant sintered alloy for internal combustion engines | Yoshikatsu Nakamura, Masajiro Takeshita | 1982-11-23 |
| 4345942 | Abrasion resistant sintered alloy for internal combustion engines | Yoshikatsu Nakamura, Masajiro Takeshita | 1982-08-24 |
| 4345943 | Abrasion resistant sintered alloy for internal combustion engines | Yoshikatsu Nakamura, Masajiro Takeshita | 1982-08-24 |