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CHIH-YUAN YEN

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  • ZHONGLI CITY, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Keyswitch structure
    • Patent number RE50000
    • Issue date Jun 4, 2024
    • Darfon Electronics Corp.
    • Chih-Hao Chen
  • Information Patent Grant

    Measuring device and method of physical property measuring
    • Patent number 11,458,533
    • Issue date Oct 4, 2022
    • National Central University
    • Chih-Ang Chung
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Keyswitch structure
    • Patent number 10,475,598
    • Issue date Nov 12, 2019
    • Darfon Electronics Corp.
    • Li-Te Chang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyswitch structure
    • Patent number 10,283,289
    • Issue date May 7, 2019
    • Darfon Electronics Corp.
    • Chih-Hao Chen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Illuminated keyswitch
    • Patent number 10,211,006
    • Issue date Feb 19, 2019
    • Darfon Electronics (Suzhou) Co., Ltd.
    • Rui-Ming Liao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyswitch
    • Patent number 10,128,063
    • Issue date Nov 13, 2018
    • Darfon Electronics (Suzhou) Co., Ltd.
    • Rui-Ming Liao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyswitch
    • Patent number 10,068,726
    • Issue date Sep 4, 2018
    • Darfon Electronics (Suzhou) Co., Ltd.
    • Rui-Ming Liao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of making a light-emitting-diode lamp tube
    • Patent number 9,485,871
    • Issue date Nov 1, 2016
    • JUSTING TECHNOLOGY (TAIWAN) PTE LTD.
    • Chia-Ching Su
    • F21 - LIGHTING
  • Information Patent Grant

    Magnetic keyswitch and related keyboard
    • Patent number 9,396,893
    • Issue date Jul 19, 2016
    • Darfon Electronics Corp.
    • Chih-Chung Yen
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Connector of a light-emitting-diode lamp tube
    • Patent number 9,033,741
    • Issue date May 19, 2015
    • JUSTING TECHNOLOGY(TAIWAN) PTE LTD.
    • Chia-Ching Su
    • F21 - LIGHTING
  • Information Patent Grant

    Keyswitch and keyboard
    • Patent number 9,006,596
    • Issue date Apr 14, 2015
    • Darfon Electronics (Suzhou) Co., Ltd.
    • Ling-Hsi Chao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Input apparatus and light guiding plate thereof
    • Patent number 8,231,236
    • Issue date Jul 31, 2012
    • Dafron Electronics Corp.
    • Chih-Hsiang Chiang
    • G02 - OPTICS
  • Information Patent Grant

    Keyboard and keyswitch
    • Patent number 8,080,744
    • Issue date Dec 20, 2011
    • Darfon Electronics Corp.
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Input apparatus and keyswitch
    • Patent number 8,080,753
    • Issue date Dec 20, 2011
    • Darfon Electronics Corp.
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Key structure
    • Patent number 7,973,254
    • Issue date Jul 5, 2011
    • Darfon Electronics Corp.
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Keyboard
    • Patent number 7,709,762
    • Issue date May 4, 2010
    • Darfon Electronics Corp.
    • Shin-Chan Lin
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Key structure
    • Patent number 7,696,446
    • Issue date Apr 13, 2010
    • Darfon Electronics Corp.
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Membrane switch circuit and keyswitch using such membrane switch ci...
    • Patent number 7,589,293
    • Issue date Sep 15, 2009
    • Darfon Electronics Corp.
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    MEASURING DEVICE AND METHOD OF PHYSICAL PROPERTY MEASURING
    • Publication number 20210060637
    • Publication date Mar 4, 2021
    • National Central University
    • Chih-Ang CHUNG
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    KEYSWITCH STRUCTURE
    • Publication number 20190206634
    • Publication date Jul 4, 2019
    • DARFON ELECTRONICS CORP.
    • Li-Te Chang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYSWITCH STRUCTURE
    • Publication number 20180286603
    • Publication date Oct 4, 2018
    • DARFON ELECTRONICS CORP.
    • Chih-Hao Chen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYSWITCH
    • Publication number 20180137994
    • Publication date May 17, 2018
    • DARFON ELECTRONICS (SUZHOU) CO., LTD.
    • Rui-Ming Liao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYSWITCH
    • Publication number 20170221653
    • Publication date Aug 3, 2017
    • DARFON ELECTRONICS (SUZHOU) CO., LTD.
    • Rui-Ming Liao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ILLUMINATED KEYSWITCH
    • Publication number 20170221652
    • Publication date Aug 3, 2017
    • DARFON ELECTRONICS (SUZHOU) CO., LTD.
    • Rui-Ming Liao
    • G02 - OPTICS
  • Information Patent Application

    MAGNETIC KEYSWITCH AND RELATED KEYBOARD
    • Publication number 20150101917
    • Publication date Apr 16, 2015
    • Darfon Electronics Corp.
    • Chih-Chung Yen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    METHOD OF MAKING A LIGHT-EMITTING-DIODE LAMP TUBE
    • Publication number 20140096378
    • Publication date Apr 10, 2014
    • Justing Technology Pte. Ltd.
    • CHIA- CHING SU
    • F21 - LIGHTING
  • Information Patent Application

    CONNECTOR OF A LIGHT-EMITTING-DIODE LAMP TUBE
    • Publication number 20140087571
    • Publication date Mar 27, 2014
    • Justing Technology Pte. Ltd.
    • CHIA- CHING SU
    • F21 - LIGHTING
  • Information Patent Application

    END CAP AND A MANUFACTURING METHOD THEREOF
    • Publication number 20140036491
    • Publication date Feb 6, 2014
    • JUSTING TECHNOLOGY PTE. LTD.
    • CHIA-CHING SU
    • F21 - LIGHTING
  • Information Patent Application

    LAMP HOLDER FIXTURE
    • Publication number 20140022776
    • Publication date Jan 23, 2014
    • CHIA- CHING SU
    • F21 - LIGHTING
  • Information Patent Application

    KEYSWITCH AND KEYBOARD
    • Publication number 20140008195
    • Publication date Jan 9, 2014
    • LING-HSI CHAO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYSWITCH AND KEYBOARD
    • Publication number 20120160648
    • Publication date Jun 28, 2012
    • Ling-Hsi Chao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYBOARD WITH PLATE-TYPE KEYCAP ASSEMBLY
    • Publication number 20120160652
    • Publication date Jun 28, 2012
    • Ling-Hsi Chao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    INPUT APPARATUS AND LIGHT GUIDING PLATE THEREOF
    • Publication number 20100089731
    • Publication date Apr 15, 2010
    • CHIH-HSIANG CHIANG
    • G02 - OPTICS
  • Information Patent Application

    INPUT APPARATUS
    • Publication number 20100065408
    • Publication date Mar 18, 2010
    • CHIH-HSIANG CHIANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYBOARD AND KEYSWITCH
    • Publication number 20100065409
    • Publication date Mar 18, 2010
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    INPUT APPARATUS AND KEYSWITCH
    • Publication number 20100051431
    • Publication date Mar 4, 2010
    • Liang-Ta Yeh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Key Structure
    • Publication number 20090178909
    • Publication date Jul 16, 2009
    • Darfon Electronics Corp.
    • Liang Ta YEH
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Key Structure
    • Publication number 20090178910
    • Publication date Jul 16, 2009
    • Darfon Electronics Corp.
    • Liang Ta YEH
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    KEYBOARD
    • Publication number 20090038923
    • Publication date Feb 12, 2009
    • Darfon Electronics Corp.
    • Shin-Chan Lin
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Membrane Switch Circuit and Keyswitch Using Such Membrane Switch Ci...
    • Publication number 20090032380
    • Publication date Feb 5, 2009
    • DARFON ELECTRONICS CORP.
    • Liang Ta YEH
    • H01 - BASIC ELECTRIC ELEMENTS