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Schmitt trigger circuit
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Patent number 4,883,975
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Issue date Nov 28, 1989
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Fujitsu Limited
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Hiromu Enomoto
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H03 - BASIC ELECTRONIC CIRCUITRY
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Logic circuit
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Patent number 4,774,620
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Issue date Sep 27, 1988
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Fujitsu Limited
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Hiromu Enomoto
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H03 - BASIC ELECTRONIC CIRCUITRY
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Semiconductor device
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Patent number 4,680,600
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Issue date Jul 14, 1987
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Fujitsu Limited
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Akinori Tahara
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H03 - BASIC ELECTRONIC CIRCUITRY
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Schmitt trigger circuit
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Patent number 4,567,380
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Issue date Jan 28, 1986
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Fujitsu Limited
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Yasushi Yasuda
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H03 - BASIC ELECTRONIC CIRCUITRY
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-
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Semiconductor device
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Patent number 4,276,556
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Issue date Jun 30, 1981
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Fujitsu Limited
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Hiromu Enomoto
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H01 - BASIC ELECTRIC ELEMENTS