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:
Jul. 19, 2005
Filed:
Jun. 24, 2003
Katsushiro Ishibayashi, Shinagawa-ku, JP;
Tatsuaki Taniguchi, Aki-gun, JP;
Kazuo Shigeta, Aki-gun, JP;
Katsushiro Ishibayashi, Shinagawa-ku, JP;
Tatsuaki Taniguchi, Aki-gun, JP;
Kazuo Shigeta, Aki-gun, JP;
Harada Industry Co., Ltd., Tokyo, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
In an antenna apparatus for a vehicle, the antenna apparatus being provided on the vehicle in which at least a part of an outside plank panel of the vehicle is constituted by an outer panel made of a synthetic resin material, the antenna apparatus has at least one non-earthed type antenna, the non-earthed type antenna is provided with a first antenna element connected to an inner conductor of a coaxial cable via a first feeding point, and a second antenna element connected to an outer conductor of the coaxial cable via a second feeding point, and at least both the first and second antenna elements and both the first and second feeding points are arranged in a portion which is inside the outer panel made of the synthetic resin material and is apart from the earthed conductor on the part of the vehicle body, thereby it is possible to improve a receiving performance of a radio wave having a short wavelength, and can restrict an influence of a noise.