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Fukushima-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power amplifier capable of adjusting operating point
Patent number
6,838,932
Issue date
Jan 4, 2005
Alps Electric Co., Ltd.
Toru Izumiyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Output power detection circuit of transmitter
Patent number
6,339,702
Issue date
Jan 15, 2002
Alps Electric Co., Ltd.
Toru Izumiyama
G01 - MEASURING TESTING
Information
Patent Grant
Reception circuit for cellular telephone
Patent number
6,141,561
Issue date
Oct 31, 2000
Alps Electric Co., Ltd.
Toru Izumiyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Balanced-to-unbalanced converting circuit
Patent number
5,705,960
Issue date
Jan 6, 1998
Alps Electric Co., Ltd.
Toru Izumiyama
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
Transmission-and-receiving switching circuit not allowing superfluo...
Publication number
20040023619
Publication date
Feb 5, 2004
Alps Electric Co., Ltd.
Toru Izumiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power amplifier capable of adjusting operating point
Publication number
20030214352
Publication date
Nov 20, 2003
Alps Electric Co., Ltd.
Toru Izumiyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Wireless LAN card with efficient productivity
Publication number
20030156390
Publication date
Aug 21, 2003
Alps Electric Co., Ltd.
Hideki Takeshita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Frequency conversion circuit having suppressed beat
Publication number
20030050031
Publication date
Mar 13, 2003
Alps Electric Co., Ltd.
Takeo Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE