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:
Sep. 20, 2011
Filed:
Jan. 05, 2007
Yoshinori Furuno, Tsuchiura, JP;
Yoshinori Furuno, Tsuchiura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a maintenance history information management system for a construction machine that is capable of enhancing the reliability of temporal information about maintenance history data. A data recording deviceis incorporated in a hydraulic excavatoror other construction machine to process operating time or date and time. A mobile terminalincludes a CPUfor displaying construction machine maintenance items on a monitor. A worker can input data for the maintenance items as the maintenance history data. The mobile terminalinputs the operating time or date and time from the data recording devicevia a communication cable and a communication connector and stores the input operating time or date and time in a storage devicein association with the maintenance history data.