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Nippon Antenna Co., Ltd. Patents |
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Assignee: Nippon Antenna Co., Ltd.
Address: Tokyo, JP
No. of patents: 9
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D315738 |
Ferrite antenna |
March 26, 1991 |
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| D315563 |
Ferrite antenna |
March 19, 1991 |
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| D308204 |
Indoor antenna |
May 29, 1990 |
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| 5446469 |
Extendible whip antenna |
August 29, 1995 |
| An extendible whip antenna suitable for a hand-held two-way radio apparatus having a wide frequency band and a high sensitivity is disclosed, in which when it is used for communication, a 1/2-wave length whip antenna is extended outside of a case and a stopper conductor thereof is engage |
| 5248988 |
Antenna used for a plurality of frequencies in common |
September 28, 1993 |
| An antenna used for a plurality of frequencies in common according to the present invention has two signal feeding systems for an integrated antenna. The antenna is so constructed that the signal feeding systems are perfectly isolated in DC from each other through a capacitor and at the |
| 5025263 |
Multi-frequency antenna |
June 18, 1991 |
| A multi-frequency antenna to be used commonly for reception of multiple different frequencies includes first and second rods extendably held by and through a third rod. The first rod is coupled to the second rod via a phase shifter so that when the first and second rods are fully extende |
| 4983892 |
Mechanism for controlling electrically driven antenna |
January 8, 1991 |
| A control apparatus is placed in a drive circuit of a motor of an electrically driven antenna. The drive circuit is provided in parallel with a transmitter-receiver circuit of a transmitter-receiver, and an operation unit is provided so that control instruction can be given by manual |
| 4978966 |
Carborne antenna |
December 18, 1990 |
| An antenna has a plurality of rod-shaped cores aligned in an end-to-end relationship and an antenna coil wound on the core array throughout its entire length. This arrangement permits the antenna to bend and fit any curved surface of a car where the antenna is mounted. |
| 4879570 |
Broadcasting wave reception antenna |
November 7, 1989 |
| A broadcasting wave reception antenna have a magnetic core having multiple radial projections extending on a common plane, and respective projections are provided with coils wound on them. |
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