TREA

Katsuaki Karasawa

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  • Higashimurayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Time measurement device
    • Patent number 9,563,176
    • Issue date Feb 7, 2017
    • Seiko Epson Corporation
    • Takashi Kawaguchi
    • G04 - HOROLOGY
  • Information Patent Grant

    Analog electronic timepiece
    • Patent number 9,354,610
    • Issue date May 31, 2016
    • Seiko Epson Corporation
    • Makoto Okeya
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic apparatus having movable case
    • Patent number 5,138,590
    • Issue date Aug 11, 1992
    • Casio Computer Co., Ltd.
    • Yuichi Masuda
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic key apparatus
    • Patent number 4,786,900
    • Issue date Nov 22, 1988
    • Casio Computer Co. Ltd.
    • Katsuaki Karasawa
    • G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

  • Information Patent Application

    ANALOG ELECTRONIC TIMEPIECE
    • Publication number 20150309477
    • Publication date Oct 29, 2015
    • SEIKO EPSON CORPORATION
    • Makoto OKEYA
    • G04 - HOROLOGY
  • Information Patent Application

    TIME MEASUREMENT DEVICE
    • Publication number 20150309479
    • Publication date Oct 29, 2015
    • SEIKO EPSON CORPORATION
    • Takashi KAWAGUCHI
    • G04 - HOROLOGY