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Akira SHIRAO

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  • Shiojiri, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic timepiece
    • Patent number 10,317,847
    • Issue date Jun 11, 2019
    • Seiko Epson Corporation
    • Akira Shirao
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic circuit and electronic timepiece
    • Patent number 10,256,810
    • Issue date Apr 9, 2019
    • Seiko Epson Corporation
    • Akira Shirao
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    CR oscillation circuit
    • Patent number 9,716,501
    • Issue date Jul 25, 2017
    • Seiko Epson Corporation
    • Akira Shirao
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    Electronic Circuit And Electronic Timepiece
    • Publication number 20180278247
    • Publication date Sep 27, 2018
    • SEIKO EPSON CORPORATION
    • Akira SHIRAO
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    ELECTRONIC TIMEPIECE
    • Publication number 20170277135
    • Publication date Sep 28, 2017
    • SEIKO EPSON CORPORATION
    • Akira SHIRAO
    • G04 - HOROLOGY
  • Information Patent Application

    CR OSCILLATION CIRCUIT
    • Publication number 20160301398
    • Publication date Oct 13, 2016
    • SEIKO EPSON CORPORATION
    • Akira SHIRAO
    • H03 - BASIC ELECTRONIC CIRCUITRY