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. 05, 2017
Filed:
Nov. 06, 2013
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Inventors:
Atsushi Kazama, Tokyo, JP;
Hiroyuki Ota, Tokyo, JP;
Jiro Hashizume, Tokyo, JP;
Junji Onozuka, Hitachinaka, JP;
Hiroshi Onuki, Hitachinaka, JP;
Miho Tobita, Hitachinaka, JP;
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 9/06 (2006.01); G01L 9/00 (2006.01);
U.S. Cl.
CPC ...
G01L 9/0054 (2013.01); G01L 9/0042 (2013.01); G01L 9/0055 (2013.01); G01L 9/065 (2013.01);
Abstract
An object of the present invention is to realize a pressure sensor with a small variation in sensor characteristics. The pressure sensor includes a diaphragm having longitudinal and lateral sides, and four strain gauges disposed on the diaphragm. The four strain gauges are arranged at a center of the diaphragm. Two of the four strain gauges are arranged along a lateral direction, and other two strain gauges are arranged along a longitudinal direction.