Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932726 | Anti-skid brake control system with vehicle speed dependent variable slippage threshold feature | Eiji Yagi, Hirotsugu Yamaguchi, Sunao Hano | 1990-06-12 |
| 4568067 | Strut suspension for an automotive vehicle | — | 1986-02-04 |
| 4502575 | Shock absorber | Naoto Fukushima, Kunihiko Hidaka | 1985-03-05 |
| 4475635 | Vortex flow shock absorber with one-way valve | Naoto Fukuhsima, Kunihiko Hidaka | 1984-10-09 |
| 4457409 | Vortex shock absorber with absorbing force relief means | Naoto Fukushima, Kunihiko Hidaka | 1984-07-03 |
| 4442925 | Vortex flow hydraulic shock absorber | Naoto Fukushima, Kunihiko Hidaka, Keiichiro Yabuta | 1984-04-17 |
| 4418802 | Shock absorber | Naoto Fukushima, Kunihiko Hidaka | 1983-12-06 |
| 4407397 | Shock absorber with pressure-relief mechanism | Naoto Fukushima, Kunihiko Hidaka | 1983-10-04 |