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Tzu-Feng Tseng

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  • Hsinchu Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid-crystal medium
    • Patent number 12,187,944
    • Issue date Jan 7, 2025
    • Merck Patent GmbH
    • Sven Christian Laut
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Cutting apparatus
    • Patent number 7,591,211
    • Issue date Sep 22, 2009
    • Primax Electronics, Inc.
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Paper-cutting apparatus and paper-holding device of the same
    • Patent number 7,131,363
    • Issue date Nov 7, 2006
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Marking device
    • Patent number 7,131,212
    • Issue date Nov 7, 2006
    • Primax Electronics Ltd.
    • Chih-Tsung Kao
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Vertical rotary multi-functional trimming apparatus
    • Patent number 6,990,884
    • Issue date Jan 31, 2006
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Cutting apparatus
    • Patent number 6,966,247
    • Issue date Nov 22, 2005
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Multi-functional trimming apparatus
    • Patent number 6,951,159
    • Issue date Oct 4, 2005
    • Primax Electronics, Ltd.
    • Hsiao-Ying Lin
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cutting apparatus
    • Patent number 6,931,974
    • Issue date Aug 23, 2005
    • Primax Electronics, Ltd.
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Digital business card
    • Patent number 6,616,052
    • Issue date Sep 9, 2003
    • Ritek Corporation
    • Tzu-Feng Tseng
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Method of photolithography using super-resolution near-field structure
    • Patent number 6,506,543
    • Issue date Jan 14, 2003
    • Ritek Corporation
    • Tzu-Feng Tseng
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Method of increasing recording density and capacity of a compact disc
    • Patent number 6,404,722
    • Issue date Jun 11, 2002
    • Ritek Corporation
    • Tzu-Feng Tseng
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Method of fabricating a polysilicon layer
    • Patent number 6,391,395
    • Issue date May 21, 2002
    • Ritek Corporation
    • Tzu-Feng Tseng
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric paper punch
    • Patent number 6,269,721
    • Issue date Aug 7, 2001
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

  • Information Patent Application

    LIQUID-CRYSTAL MEDIUM
    • Publication number 20230383186
    • Publication date Nov 30, 2023
    • Merck Patent GmbH
    • Sven Christian LAUT
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    CUTTING APPARATUS
    • Publication number 20080072729
    • Publication date Mar 27, 2008
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    CUTTING APPARATUS
    • Publication number 20080072730
    • Publication date Mar 27, 2008
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Pressing mechanism of cutting apparatus
    • Publication number 20060201303
    • Publication date Sep 14, 2006
    • Primax Electronics Ltd.
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    FLAT MEDIA CUTTING DEVICE
    • Publication number 20060191391
    • Publication date Aug 31, 2006
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    FLAT MEDIA CUTTING DEVICE
    • Publication number 20060191392
    • Publication date Aug 31, 2006
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Multi-angular trimming apparatus
    • Publication number 20060150796
    • Publication date Jul 13, 2006
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    FLAT MEDIA CUTTING DEVICE
    • Publication number 20050252354
    • Publication date Nov 17, 2005
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Cutting apparatus with alignment marker
    • Publication number 20050199114
    • Publication date Sep 15, 2005
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    VERTICAL ROTARY MULTI-FUNCTIONAL TRIMMING APPARATUS
    • Publication number 20050172774
    • Publication date Aug 11, 2005
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Paper-cutting apparatus and paper-holding device of the same
    • Publication number 20040226426
    • Publication date Nov 18, 2004
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Cutting apparatus
    • Publication number 20040194603
    • Publication date Oct 7, 2004
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    APPARATUS FOR FORMING A FOLDING-LINE
    • Publication number 20040161279
    • Publication date Aug 19, 2004
    • Tzu-Feng Tseng
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Cutting apparatus
    • Publication number 20040098867
    • Publication date May 27, 2004
    • Tzu-Feng Tseng
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Plastic article with a film sputter deposited thereon
    • Publication number 20030203219
    • Publication date Oct 30, 2003
    • Everskil Technology Co., Ltd.
    • Chi-Fang Lin
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Cutting apparatus capable of imparting curved edge to paper
    • Publication number 20030183058
    • Publication date Oct 2, 2003
    • Primax Electronics Ltd.
    • Yu-Shuo Fan
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Multi-functional trimming apparatus
    • Publication number 20030182807
    • Publication date Oct 2, 2003
    • Primax Electronics Ltd.
    • Hsiao-Ying Lin
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Digital data vending machine
    • Publication number 20020062171
    • Publication date May 23, 2002
    • Tzu-Feng Tseng
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Apparent data erasure method
    • Publication number 20020062446
    • Publication date May 23, 2002
    • Tzu-Feng Tseng
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Digital business card
    • Publication number 20020053595
    • Publication date May 9, 2002
    • Tzu-Feng Tseng
    • G06 - COMPUTING CALCULATING COUNTING