Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11305637 | Vehicle cooling system | Naoki Hiraoka, Tomoya OZAWA, Takashi Asai, Daisuke Murata, Keita Kobayashi +1 more | 2022-04-19 |
| 5687808 | Four wheel drive mechanism | Jun Watanabe, Yorihito Nakao, Shigeru Kamegaya, Naohiko Inoue | 1997-11-18 |
| 5290048 | Working fluid circuit for active suspension control system of vehicle | Tadashi Yamashita | 1994-03-01 |
| 5261455 | Pressure control valve for active suspension control system | Naohiko Inoue | 1993-11-16 |
| 5239471 | Actively controlled suspension system for automotive vehicles | — | 1993-08-24 |
| 5085460 | Working fluid circuit for automotive active suspension system with enhanced take-up characteristics upon initiation of operation | — | 1992-02-04 |
| 5076606 | Active suspension system with hydraulic circuit having line pressure dependent flow restriction for working fluid introduced into and drained from working chamber | — | 1991-12-31 |
| 5048861 | Active suspension system and pressure control valve therefor | — | 1991-09-17 |
| 5042832 | Proportioning valve assembly and actively controlled suspension system utilizing the same | Naohiko Inoue, Masahiro Tsukamoto | 1991-08-27 |
| 4982979 | Active suspension system with enhanced response characteristics hydraulic circuit | Yohsuke Akatsu, Naoto Fukushima, Yukio Fukunaga, Itaru Fujimura, Masaharu Satoh +2 more | 1991-01-08 |
| 4948165 | Proportioning valve assembly for an actively controlled suspension system | Naohiko Inoue, Masahiro Tsukamoto | 1990-08-14 |