TREA

Masayuki Yoneyama

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  • Fujisawa-Shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Key switch
    • Patent number 7,173,200
    • Issue date Feb 6, 2007
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyboard switch with internal fluid containment network
    • Patent number 6,946,611
    • Issue date Sep 20, 2005
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyboard switch
    • Patent number 6,759,614
    • Issue date Jul 6, 2004
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Key switch stabilizer mechanism
    • Patent number 6,713,699
    • Issue date Mar 30, 2004
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Low profile key switch structure
    • Patent number 6,683,264
    • Issue date Jan 27, 2004
    • Minebea Co., Ltd.
    • Rikuro Obara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Key switch
    • Patent number 6,107,584
    • Issue date Aug 22, 2000
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Push button switch
    • Patent number 6,011,227
    • Issue date Jan 4, 2000
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Pushbutton switch
    • Patent number 5,819,914
    • Issue date Oct 13, 1998
    • Minebea Co., Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Pushbutton switch
    • Patent number 5,597,067
    • Issue date Jan 28, 1997
    • Minebea Company, Ltd.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Keyboard switch with internal fluid containment network
    • Publication number 20050000789
    • Publication date Jan 6, 2005
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Key switch stabilizer mechanism
    • Publication number 20030209417
    • Publication date Nov 13, 2003
    • MINEBEA CO., LTD.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Low profile key switch structure
    • Publication number 20030188961
    • Publication date Oct 9, 2003
    • MINEBEA CO., LTD.
    • Rikuro Obara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Keyboard switch
    • Publication number 20030178293
    • Publication date Sep 25, 2003
    • MINEBEA CO., LTD.
    • Masayuki Yoneyama
    • H01 - BASIC ELECTRIC ELEMENTS