Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4603753 | Automatic running work vehicle | Katsumi Ito, Shigeru Tanaka | 1986-08-05 |
| 4573547 | Automatic running work vehicle | Katsumi Ito, Shigeru Tanaka | 1986-03-04 |
| 4545453 | Automatic running work vehicle | Katsumi Ito, Shigeru Tanaka | 1985-10-08 |