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Circuit translator
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Patent number 4,803,636
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Issue date Feb 7, 1989
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Hitachi Ltd.
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Tamotsu Nishiyama
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G06 - COMPUTING CALCULATING COUNTING
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Amplifier circuit
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Patent number 4,510,458
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Issue date Apr 9, 1985
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Hitachi, Ltd.
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Tetsuo Sato
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H03 - BASIC ELECTRONIC CIRCUITRY
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Signal processing circuit
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Patent number 4,500,932
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Issue date Feb 19, 1985
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Hitachi, Ltd.
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Tetsuo Sato
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G11 - INFORMATION STORAGE
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Noise reduction system
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Patent number 4,476,502
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Issue date Oct 9, 1984
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Hitachi, Ltd.
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Kazuo Watanabe
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H03 - BASIC ELECTRONIC CIRCUITRY
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Noise reduction system
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Patent number 4,473,852
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Issue date Sep 25, 1984
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Hitachi, Ltd.
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Yasuo Kominami
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H03 - BASIC ELECTRONIC CIRCUITRY
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-
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Recording/playing circuit
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Patent number 4,354,209
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Issue date Oct 12, 1982
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Hitachi, Ltd.
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Tetsuo Sato
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G11 - INFORMATION STORAGE
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Power output circuit
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Patent number 4,313,145
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Issue date Jan 26, 1982
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Hitachi, Ltd.
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Masanori Ienaka
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G01 - MEASURING TESTING
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-
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Protective circuit
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Patent number 4,276,442
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Issue date Jun 30, 1981
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Hitachi, Ltd.
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Masanori Ienaka
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-
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Double-converting FM tuner
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Patent number 4,236,252
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Issue date Nov 25, 1980
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Hitachi, Ltd.
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Yasuo Kominami
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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