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Yokohama, JP
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last 30 patents
Information
Patent Grant
Aperture correction circuit
Patent number
4,994,915
Issue date
Feb 19, 1991
Hitachi, Ltd.
Satoshi Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase shift circuit for electrical signal
Patent number
4,782,246
Issue date
Nov 1, 1988
Hitachi, Ltd.
Tomomitsu Kuroyanagi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Amplifier circuit suitable for use as an active filter circuit
Patent number
4,748,422
Issue date
May 31, 1988
Hitachi, Ltd.
Shuzo Matsumoto
H03 - BASIC ELECTRONIC CIRCUITRY