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:
May. 22, 2007
Filed:
Oct. 12, 2005
Koichi Shibata, Niihari, JP;
Hiroshi Watanabe, Ushiku, JP;
Hiroshi Ogura, Ryugasaki, JP;
Genroku Sugiyama, Ryugasaki, JP;
Hiroyuki Adachi, Tsuchiura, JP;
Hideo Karasawa, Tsuchiura, JP;
Koichi Shibata, Niihari, JP;
Hiroshi Watanabe, Ushiku, JP;
Hiroshi Ogura, Ryugasaki, JP;
Genroku Sugiyama, Ryugasaki, JP;
Hiroyuki Adachi, Tsuchiura, JP;
Hideo Karasawa, Tsuchiura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A working machine maintenance system having a plurality of working machines. A center server is provided that manages maintenance on the plurality of working machines by engaging in data exchange through bidirectional communication with each of the plurality of working machines via a communication line. The working machines each include an operation data storage device, an operation device operated to enter a maintenance work completion, a data transmission device, a data reception device, and a display device at which the maintenance information is displayed. The center server includes a data reception device that receives the operation data, the maintenance work completion data, and the maintenance data that have been transmitted, an operation database in which the operation data are stored, a maintenance database, a calculation device that calculates maintenance timing. and a data transmission device that transmits data related to the maintenance information.