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:
Jan. 07, 2020
Filed:
Dec. 18, 2015
Yokowo Co., Ltd., Kita-ku, Tokyo, JP;
YOKOWO CO., LTD., Tokyo, JP;
Abstract
An antenna device capable of suppressing influence on an antenna performance even if an electronic device is provided in its vicinity is provided. An antenna deviceis equipped with a top elementand a coil. A casingof a camerais disposed at such a position as not to be right under the top element. The coilis disposed close to the casingin a front-rear direction. A distance between the casingand the coilin the front-rear direction is longer than or equal to 0.00075 times a shortest wavelength of a reception target signal. A maximum antenna efficiency of the antenna devicein a predetermined frequency band is higher than or equal to 85% of a maximum antenna efficiency in a case where the camerais not provided.