Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834036 | Composite valve for reciprocating engines and method for manufacturing the same | Yukio Nishiyama, Haruki Hino, Takuya Miyashita | 1989-05-30 |
JF
Junzo Fujioka
Overall (1989): #91,838 of 140,708Top 70%
1
Patents 1989