Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819603 | System and method for controlling ignition timing for an internal combustion engine | Tatsuo Morita, Terufumi Hidaka | 1989-04-11 |
YK
Yuichi Kashimura
Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #39,671 of 140,708Top 30%
1
Patents 1989