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. 20, 2026
Filed:
Sep. 11, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Yu Tanaka, Tokyo, JP;
Mitsuhide Murofushi, Shizuoka, JP;
Kenichi Fujii, Shizuoka, JP;
Hiroki Kato, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A reading apparatus includes an antenna element, a substrate including a ground plane and a communication circuit, and a housing. The housing has a plate-like shape having a length in a first direction that is shorter than a length in a second direction and a length in a third direction. The reading apparatus includes a parasitic element that is disposed apart from the substrate in the first direction and is disposed so as to overlap both of the antenna element and the ground plane when viewed in the first direction, the parasitic element resonating when the antenna element is excited. A length of the parasitic element in the second direction is shorter than ½ of a wavelength of an operation frequency that is used to transmit and receive the radio signal.