Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449884 | Method and system for managing construction machine, and arithmetic processing apparatus | Hiroshi Watanabe, Koichi Shibata, Hiroyuki Adachi, Toichi Hirata, Hideki Komatsu | 2002-09-17 |
| 6409142 | Pipe breakage control valve device | Masao Kariya | 2002-06-25 |
| 6390572 | Crawler belt | Wataru Idetsu, Yoshiaki Sekiguchi, Kazuyoshi Hatano | 2002-05-21 |