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. 31, 1992
Filed:
Jul. 23, 1990
Masao Shinnai, Matsusaka, JP;
Kazuya Nishikawa, Matsusaka, JP;
Tokio Tsukada, Matsusaka, JP;
Tohru Hirotsu, Matsusaka, JP;
Abstract
The invention relates to an antenna on a vehicle rear window glass for the reception of FM radio broadcasting and TV broadcasting in both the VHF and UHF bands. The window glass is provided with defogging heater strips, and the antenna uses a space left above the heater strips. The antenna is a combination of a main antenna and a secondary antenna, and every element of the antenna is a conductive strip. The main antenna has at least two horizontally extending primary elements which are parallel to and at a relatively short distance from each other. Each of the primary elements has a length of 300-550 mm and is connected at its one end to the other(s) by a subsidiary element arranged perpendicular to the primary elements. The secondary antenna has a middle part, which is relatively long and extends horizontally, and two extension parts which extend from the two opposite ends of the middle part parallel and close to the two opposite side edges of the window glass, respectively. The middle part is close to the upper edge of the window glass or close to the uppermost heater strip. The secondary antenna is connected to the main antenna by a straight extension of the subsidiary element of the main antenna.