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Yukio Idaka
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Nara, JP
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last 30 patents
Information
Patent Grant
Semiconductor relay circuit using photovoltaic diodes
Patent number
5,151,602
Issue date
Sep 29, 1992
Matsushita Electric Works, Ltd.
Yukio Idaka
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optoelectronic relay circuit having charging path formed by a switc...
Patent number
5,057,694
Issue date
Oct 15, 1991
Matsushita Electric Works, Ltd.
Yukio Idaka
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Light receiving element
Patent number
4,805,006
Issue date
Feb 14, 1989
Matsushita Electric Works, Ltd.
Shuichiroh Yamaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor switching circuit
Patent number
4,801,822
Issue date
Jan 31, 1989
Matsushita Electric Works, Ltd.
Yukio Idaka
H03 - BASIC ELECTRONIC CIRCUITRY