Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643582 | Work management method, management system and management apparatus suited to work sites | Hiroyuki Adachi, Toichi Hirata, Hiroshi Watanabe, Koichi Shibata, Hideki Komatsu | 2003-11-04 |
| 6634725 | Crawler | Wataru Idetsu, Akihiko Yamamoto, Yuji Yoshitomi, Akiomi Kono | 2003-10-21 |
| 6619037 | Hydraulic driving device of civil engineering and construction machinery | Tsukasa Toyooka, Toichi Hirata, Kouji Ishikawa, Masao Nishimura, Tsuyoshi Nakamura | 2003-09-16 |
| 6564480 | Working apparatus for construction machine | Sadahisa Tomita, Masakazu Haga, Ryohei Suzuki, Toshio Hasegawa, Koji Tahara | 2003-05-20 |