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:
Apr. 21, 2015
Filed:
Apr. 06, 2012
Shinji Nishikawa, Kasumigaura, JP;
Kouji Ishikawa, Kasumigaura, JP;
Takatoshi Ooki, Kasumigaura, JP;
Keiichiro Nakamura, Mito, JP;
Shinji Nishikawa, Kasumigaura, JP;
Kouji Ishikawa, Kasumigaura, JP;
Takatoshi Ooki, Kasumigaura, JP;
Keiichiro Nakamura, Mito, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a display devicefor a work machine having an engine, a hydraulic pumpdriven by the engine, a boom cylinder, an arm cylinder, a bucket cylinder, and other actuators driven by a hydraulic fluid supplied from the hydraulic pump, and an operating devicefor operating the actuators. The display deviceincludes an idle state display sectionfor displaying an engine revolution speed N as no-manipulation period operating state information which is related to an engine load that is imposed while the operating deviceis not manipulated. This makes it possible to inform an operator of the status of the engine load in an idle state for the purpose of prompting the operator to transition into a fuel-efficient state.