Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6535142 | Engine idling stop signal display apparatus | Katsushi Wakabayashi | 2003-03-18 |
| 6463900 | Engine idling stop apparatus, system thereof and signal display apparatus used in the system | Katsushi Wakabayashi | 2002-10-15 |