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Non-volatile semiconductor memory
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Patent number 4,616,340
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Issue date Oct 7, 1986
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Agency of Industrial Science and Technology
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Yutaka Hayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Electronic timepiece
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Patent number 4,398,833
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Issue date Aug 16, 1983
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Kabushiki Kaisha Daini Seikosha
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Kojiro Tanaka
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H01 - BASIC ELECTRIC ELEMENTS
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Temperature detecting device
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Patent number 4,395,139
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Issue date Jul 26, 1983
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Kabushiki Kaisha Daini Seikosha
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Masayuki Namiki
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G01 - MEASURING TESTING
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Voltage detecting circuit
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Patent number 4,293,782
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Issue date Oct 6, 1981
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Kabushiki Kaisha Daini Seikosha
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Kojiro Tanaka
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G01 - MEASURING TESTING
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Timer device
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Patent number 4,163,360
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Issue date Aug 7, 1979
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Kabushiki Kaisha Daini Seikosha
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Kojiro Tanaka
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G04 - HOROLOGY
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Switching circuit
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Patent number 4,138,613
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Issue date Feb 6, 1979
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Kabushiki Kaisha Daini Seikosha
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Kojiro Tanaka
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H03 - BASIC ELECTRONIC CIRCUITRY
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Electronic watch
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Patent number 4,102,122
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Issue date Jul 25, 1978
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Kabushiki Kaisha Daini Seikosha
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Kojiro Tanaka
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G04 - HOROLOGY