Communications: radio wave antennas – Antennas – With vehicle
Patent
1995-07-27
1998-05-26
Le, Hoanganh T.
Communications: radio wave antennas
Antennas
With vehicle
343872, 343700MS, H01Q 132
Patent
active
057573271
ABSTRACT:
An antenna unit for use in a navigation system includes a bottom cover and a unit case, a circuit board and an antenna main body are stored in the bottom cover, a cylindrical storage portion in the bottom cover is for storing the circuit board and the antenna main body therein, the cylindrical storage portion being formed integrally with the surface of the bottom cover, a cylindrical joint portion being threaded with the cylindrical storage portion, said cylindrical joint portion being formed integrally in the unit case, and the cylindrical joint portion being threaded with the cylindrical storage portion.
REFERENCES:
patent: 3245165 (1966-04-01), Podoloff
patent: 3633206 (1972-01-01), McMillan
patent: 3910540 (1975-10-01), Kayler
patent: 4398199 (1983-08-01), Makimoto et al.
patent: 4520364 (1985-05-01), Perry
patent: 4605292 (1986-08-01), McIntosh
patent: 4675685 (1987-06-01), Finken
patent: 4896165 (1990-01-01), Koizumi
patent: 5294938 (1994-03-01), Matsuo et al.
patent: 5298894 (1994-03-01), Cerny et al.
Noro Junichi
Ogino Toshikazu
Yajima Hideo
Yamada Shin-ya
Le Hoanganh T.
Mitsumi Electric Co. Ltd.
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