Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838218 | Ceramic valve supporting structure in use for internal combustion engine | Yasushi Sato, Masato Taniguchi, Junichi Kagawa, Mitsuyoshi Kawamura | 1989-06-13 |
SN
Shigeru Nagasaki
Overall (1989): #57,238 of 140,708Top 45%
1
Patents 1989