Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860001 | Remote monitoring and controlling system | Torao Yamanaka | 1989-08-22 |
| 4799162 | Route bus service controlling system | Kiyoshi Shinkawa, Hideki Hayakawa, Masaru Mori | 1989-01-17 |