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:
Oct. 30, 2018
Filed:
Dec. 26, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Masahiro Ito, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A rotation operation device includes: a rotation operation section having a cylindrical shape; multiple recessed and projecting sections arranged on an axial end surface or a peripheral surface of the rotation operation section; a conductive section having a protruding section protruding toward each recessed and projecting section and an elastic section biasing the protruding section to each recessed and projecting section, and movable in a recess-and-projection direction when the rotation operation section rotates; an electrode section changing a capacitance in accordance with a movement of the conductive section; and a detecting section detecting the change in the capacitance. The conductive section is moved in turn in the recess-and-projection direction at a different timing. The detecting section detects a rotation direction and a rotation quantity of the rotation operation section by means of a combination pattern of the change in the capacitance.