The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2010
Filed:
Jul. 12, 2002
Hiroyuki Adachi, Tsuchiura, JP;
Genroku Sugiyama, Ryugasaki, JP;
Kazuhiro Shibamori, Mitsukaido, JP;
Hideki Komatsu, Ibaraki, JP;
Koichi Shibata, Ibaraki, JP;
Hiroshi Watanabe, Ushiku, JP;
Hiroyuki Adachi, Tsuchiura, JP;
Genroku Sugiyama, Ryugasaki, JP;
Kazuhiro Shibamori, Mitsukaido, JP;
Hideki Komatsu, Ibaraki, JP;
Koichi Shibata, Ibaraki, JP;
Hiroshi Watanabe, Ushiku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A hydraulic excavator periodically measures its current location at predetermined time intervals by the GPS device in an inoperative state where its engine key is in the off position and sends the current location data and time data to a management server by a main controller and communicator. The management server receives the periodically sent location data at its communicator and successively stores it in its memory. The current location data and the measurement time data to provide a location confirmation service by a location information provider. Changes in location can be confirmed on a map, the movement of the hydraulic excavator can be tracked, and assistance can be given for confirmation of location and prevention of theft.