Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834054 | Method of detecting a fault of an exhaust gas recirculation system | Toru Hashimoto, Akira Takahashi, Susumu Saito, Hiroshi Tanaka, Takeshi Jimbo | 1989-05-30 |
| 4808841 | Centralized control system for home electric appliances | Yukihiro Ito, Tadayuki Tukahara, Yoshimi Miyamoto | 1989-02-28 |