Title: Window antenna device for use in motor vehicle

Abstract: A radio antenna device having an antenna wire and a gain increasing antenna secured to the rear window of motor vehicle in the same manner as is used for a moisture preventive heat wire. An antenna wire is secured to the rear window of a motor vehicle in an attempt to reduce such disturbance in receiving a radio wave, which accrues from an engine, electric generator and electric motor mounted on a motor vehicle or for the purpose of eliminating a space for mounting an antenna, while a gain increasing antenna is provided for compensating for the reduction in radio-wave receiving level, which is caused by shielding action of a moisture preventive heat wire which is secured to the rear window or a portion of a vehicle body, which extends along the periphery of the rear window.

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Inventors: Torii, Taketsugu (Kasugai, JA)
Nishio, Minoru (Okazaki, JA)

Application Number: 511935
Filing Date: 1974-10-03
Publication_date: 1976-07-20
Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha (JA)
Primary Class(es): 343/704 219/203, 343/713
Other Classes:
US Patent Ref:

3484584	Dec, 1969	Sha, Jr.	219/203.
3728732	Apr, 1973	Igarashi	343/713.
3771159	Nov, 1973	Kawaguchi et al.	343/713.
3845489	Oct, 1974	Sauer et al.	343/713.

Other Refs:
Primary Examiner: Gensler, Paul L.
Assistant Examiner:
Attorney: Lane, Aitken, Dunner & Ziems