Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022836 | Sealing device for oil rotary vacuum pump | Kiyonori Tokumitsu, Akira Baba | 1991-06-11 |
SH
Sadanori Hirano
Overall (All Time): #3,878,295 of 4,157,543Top 95%
1
Patents All Time