Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4765955 | Co-base alloys for engine valves and valve seats | Ritsue Yabuki, Junya Ohe | 1988-08-23 |
| 4659632 | Cobalt alloy for build-up welding having improved resistance to weld crack | Masaki Morikawa, Junya Ohe, Akifumi Mishima | 1987-04-21 |