Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475635 | Vortex flow shock absorber with one-way valve | Kazuroh Iwata, Kunihiko Hidaka | 1984-10-09 |
NF
Naoto Fukuhsima
Overall (All Time): #4,042,131 of 4,157,543Top 100%
1
Patents All Time