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:
Dec. 16, 2008
Filed:
Sep. 16, 2004
Akira Kuramori, Kanagawa, JP;
Noritaka Koguchi, Kanagawa, JP;
Masayoshi Kamijo, Nagano, JP;
Tsugutake Sadoyama, Ibaraki, JP;
Akira Kuramori, Kanagawa, JP;
Noritaka Koguchi, Kanagawa, JP;
Masayoshi Kamijo, Nagano, JP;
Tsugutake Sadoyama, Ibaraki, JP;
Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A stress-at-work evaluating device evaluates a stress of a subject at work by measuring activities of one of the right and the left masseter muscles, the work including exercise of arms or feet of the subject. The device evaluates the stress from a normalized intensity of the myoelectric potential one of the right and the left masseter muscles. The normalized intensity is calculated by dividing the intensity of the measured myoelectric potential of the masseter muscles by the level of the external force acting on the head of the subject at work.