Patents by Inventor Hsi-Chang Wu

Hsi-Chang Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180050366
    Abstract: A system for preventing overflow of adhesive applied to a PET rolling film includes a drive unit, a detection unit, and a processing unit. The detection unit detects whether UV adhesive spread on a PET film flows out to limit lines on the PET film. The detection unit generates trigger signal upon detecting that the UV adhesive on the PET film flows to any of the limit lines, and then transmits the trigger signal to the processing unit. The processing unit controls the drive unit to accelerate a rotational speed of a guide roller for the PET film upon receiving the trigger signal from the detection unit, so as to accelerate a moving speed of the PET film.
    Type: Application
    Filed: August 20, 2017
    Publication date: February 22, 2018
    Inventor: HSI-CHANG WU
  • Patent number: 8875605
    Abstract: A spiral cutting device includes a blade, a blade driving shaft, a guiding device, a driving device, and a controller. The blade is for processing a roller. The blade driving shaft drives the blade to move toward the roller. The guiding device moves in a guiding direction perpendicular to a moving direction of the blade. The driving device is movably supported on the guiding device and rotates the roller. The controller controls a feeding amount of the blade, a moving speed of the driving device, and a rotate speed of the roller to spirally cut the roller. When an outer surface of the roller is unfolded to a plane, the blade path of the blade is in sinusoidal shape or in cosinusoidal shape.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 4, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsi-Chang Wu, Yung-Chang Tseng
  • Publication number: 20130327192
    Abstract: A spiral cutting device includes a blade, a blade driving shaft, a guiding device, a driving device, and a controller. The blade is for processing a roller. The blade driving shaft drives the blade to move toward the roller. The guiding device moves in a guiding direction perpendicular to a moving direction of the blade. The driving device is movably supported on the guiding device and rotates the roller. The controller controls a feeding amount of the blade, a moving speed of the driving device, and a rotate speed of the roller to spirally cut the roller. When an outer surface of the roller is unfolded to a plane, the blade path of the blade is in sinusoidal shape or in cosinusoidal shape.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 12, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-CHANG WU, YUNG-CHANG TSENG
  • Publication number: 20120166817
    Abstract: The present invention discloses secured data display method capable of non-intrusively and non-destructively displaying secured data in a secured data storage device of an encryption system. The secured data display method includes steps of receiving and storing a secured data transmitted via a first encryption mechanism according to a first communication protocol, and receiving an output data transmitted by a data access device of the encryption system according to a second communication protocol. The secured data and the output data comprise a same content.
    Type: Application
    Filed: March 14, 2011
    Publication date: June 28, 2012
    Inventors: Hsi-Chang Wu, Pei-Wen Sun, Yen-Tsai Huang, Yu-Shiang Lu, Richard Lin
  • Publication number: 20110189328
    Abstract: A nanoimprint lithography device includes a base, a pair of opposite rotator formed on the base, and a printing mold connected to the rotators. The printing mold includes a cylindrical main body having a nanometer-scale pattern formed thereon and a pair of connecting piece detachably connected to the main body. The printing mold is connected to the rotators via the connecting pieces and is configured to be driven by the rotators to print the nanometer-scale pattern on a substrate.
    Type: Application
    Filed: April 25, 2010
    Publication date: August 4, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Hsi-Chang WU
  • Publication number: 20110157912
    Abstract: An array of first micro-structures is formed on a bottom surface of a light guide plate and a number of randomly positioned second micro-structures are formed on an emitting surface of the light guide plate substantially opposite to the bottom surface. The first micro-structure is larger than the second micro-structure. The density of the first micro-structures is smaller than that of the second micro-structures.
    Type: Application
    Filed: April 7, 2010
    Publication date: June 30, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-CHANG WU, DA-WEI LIN
  • Publication number: 20110156293
    Abstract: A light guide plate is manufactured by applying an embossing assembly. The embossing assembly includes a roller and an embossing layer applied on the roller. The embossing assembly is formed by electroforming embossing micro-structures on the outer surface of the embossing layer to an embossing substrate and embossing micro-structures on a surface thereof.
    Type: Application
    Filed: June 24, 2010
    Publication date: June 30, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: DA-WEI LIN, HSI-CHANG WU
  • Publication number: 20110156295
    Abstract: A method of manufacturing a brightness enhancement film includes the following: providing a embossing substrate, providing a first embossing assembly including a roller and an embossing layer applied on the roller, which is formed by electroforming and includes protruding micro-structures formed on the outer surface of the embossing layer, rolling the embossing layer onto the embossing substrate, and embossing the recessed micro-structures on a surface of the embossing substrate.
    Type: Application
    Filed: April 12, 2010
    Publication date: June 30, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSI-CHANG WU, TAI-CHERNG YU
  • Publication number: 20100327146
    Abstract: A mold comprises a first molding plate and a second molding plate. A wedge-shaped mold cavity and an entrance connecting to the wedge-shaped mold cavity are defined in the second molding plate. The wedge-shaped mold cavity comprises a pouring end surface, a first side end surface and a second side end surface connecting to two ends of the pouring end surface respectively. The entrance comprises a first sidewall adjacent to the first side end surface, and a second sidewall slantingly opposite to the second side end surface.
    Type: Application
    Filed: January 26, 2010
    Publication date: December 30, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: HSI-CHANG WU
  • Publication number: 20100291259
    Abstract: An exemplary injection mold for making wedge-shaped light guide plate includes a molding assembly with a mold cavity defined therein, and a first sprue and a second sprue in communication with the mold cavity. The mold cavity is wedge-shaped and comprises a thick end and a thin end opposite to the thick end. The first and second sprues are configured for introducing a molding material into the mold cavity. The first sprue is located at the thick end of the mold cavity, and the second is located at the thin end thereof.
    Type: Application
    Filed: December 30, 2009
    Publication date: November 18, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: HSI-CHANG WU
  • Publication number: 20090121676
    Abstract: A charging system for enhancing convenience includes a charging device for generating an electromagnetic wave signal, and a rechargeable device installed in a portable electronic device for receiving the electromagnetic wave signal through electromagnetic induction, so as to perform recharging.
    Type: Application
    Filed: January 15, 2008
    Publication date: May 14, 2009
    Inventors: Hsi-Chang Wu, Pei-Wen Sun, Yu-Shiang Lu, Richard Lin
  • Publication number: 20090048003
    Abstract: A contactless power supply system includes a power supply device having a first sensor module configured for outputting a first wireless signal, and a plurality of application devices for receiving the first wireless signal simultaneously, where each of the plurality of application devices includes a second sensor module for receiving the first wireless signal and transforming the first wireless signal into a corresponding induced power. A method for contactless power supply includes receiving a wireless signal and transforming the wireless signal into a corresponding induced power, and charging a battery module according to the corresponding induced power.
    Type: Application
    Filed: November 6, 2007
    Publication date: February 19, 2009
    Inventors: Yu-Shiang Lu, Hsi-Chang Wu, Pei-Wen Sun, Richard Lin