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:
May. 16, 1995
Filed:
Jan. 26, 1993
Kazuya Nishikawa, Matsusaka, JP;
Junichiro Ieiri, Matsusaka, JP;
Shingo Tadokoro, Matsusaka, JP;
Tokio Tsukada, Matsusaka, JP;
Tohru Hirotsu, Matsusaka, JP;
Hiroyuki Fujii, Matsusaka, JP;
Central Glass Company, Limited, Yamaguchi, JP;
Abstract
An antenna is attached to a rear window glass of an automobile and arranged in a space between a defogging heater element and a lower edge of the window glass. According to an aspect of the present invention, the antenna comprises a plurality of horizontal conductive strips having the length of 0.02.lambda..multidot.f.sup.1/2 (1.+-.0.2), adjacent two of which are connected at opposite ends so as to constitute a rectangular loop. The number of the horizontal conductive strips is in the range of 2 to 4. According to another aspect of the present invention, the antenna comprises a main element having two horizontal conductive strips and a vertical strip connecting the horizontal strips at one ends located nearer to a widthwise center of the space, and an auxiliary element having a conductive strip made up of a vertical portion extending upward from upper one of the horizontal conductive strips of the main element to have an upper end and a horizontal portion extending between the upper end of the vertical portion and a feed point located at a widthwise marginal area of the space.