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:
Mar. 22, 2022
Filed:
Jul. 26, 2016
Rohm Co., Ltd., Kyoto, JP;
Hirotoshi Usui, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
The door handle device includes: a contact sensing unit including a guide groove and a contact sensing electrode, the guide groove configured to guide a water droplet falling on a door, the contact sensing electrode disposed in the guide groove and configured to sense a contact with the door; a locking unit configured to execute unlocking and locking of a door; and a control unit configured to instruct to the locking unit to keep locking the door if determining that the water droplet is in contact with the door, on the basis of a sensing result by the contact sensing electrode. There are provided: a contact sensing device; a door handle device and a control method for such a door handle device; and an electronic key system, for preventing a misoperation due to a water droplet adhering to a door handle of vehicles, which has an electrostatic locking mechanism.