Patents by Inventor Wei-Hung Chang

Wei-Hung Chang 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: 20240142664
    Abstract: Two types of blue light blocking contact lenses are provided and are formed by curing different compositions. The first composition includes a blue light blocking component formed by mixing or reacting a first hydrophilic monomer and a yellow dye, a first colored dye component formed by mixing or reacting a second hydrophilic monomer and a first colored dye, at least one third hydrophilic monomer, a crosslinker, and an initiator. The first colored dye includes a green dye, a cyan dye, a blue dye, an orange dye, a red dye, a black dye, or combinations thereof. The second composition includes a blue light blocking component, at least one hydrophilic monomer, a crosslinker, and an initiator. The blue light blocking component is formed by mixing or reacting glycerol monomethacrylate and a yellow dye. Further, methods for preparing the above contact lenses are provided.
    Type: Application
    Filed: February 12, 2023
    Publication date: May 2, 2024
    Inventors: Han-Yi CHANG, Chun-Han CHEN, Tsung-Kao HSU, Wei-che WANG, Yu-Hung LIN, Wan-Ying GAO, Li-Hao LIU
  • Publication number: 20240128233
    Abstract: A sensor package structure and a manufacturing method thereof are provided. The sensor package structure includes a substrate, a fixing adhesive layer disposed on the substrate, a sensor chip adhered to the fixing adhesive layer, an annular adhering layer disposed on the sensor chip, a light-permeable sheet adhered to the annular adhering layer, and a plurality of metal wires that are electrically coupled to the substrate and the sensor chip. The size of the light-permeable sheet is smaller than that of the sensor chip.
    Type: Application
    Filed: June 6, 2023
    Publication date: April 18, 2024
    Inventors: CHIA-SHUAI CHANG, WEN-FU YU, BAE-YINN HWANG, WEI-LI WANG, CHIEN-HUNG LIN
  • Publication number: 20240127767
    Abstract: A display device and a projector are provided. The display device includes a pixel light-emitting panel and multiple color conversion panels. The pixel light-emitting panel includes an N1 number of light-emitting pixel units distributed in an array, and the light-emitting pixel units are driven to emit light through a driver. A first color conversion panel includes an N2 number of first color pixels and an N3 number of first transparent pixels. The first color pixels and the first transparent pixels are disposed relative to the light-emitting pixel units. A second color conversion panel includes an N4 number of second color pixels and an N5 number of second transparent pixels. The second color pixels and the second transparent pixels are disposed relative to the light-emitting pixel units. The lights generated by at least part of the light-emitting pixel units sequentially pass through the first color pixels and the second transparent pixels to achieve the color conversion.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 18, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Hui-Tang Shen, Wei-Hung Kuo, Kai-Ling Liang, Chun-I Wu, Yu-Hsiang Chang
  • Publication number: 20240128291
    Abstract: A sensor package structure includes a substrate, a sensor chip disposed on and electrically coupled to the substrate, a light-permeable layer, an adhesive layer having a ring-shape and sandwiched between the sensor chip and the light-permeable layer, and an encapsulant formed on the substrate. The adhesive layer has two adhering surfaces having a same area and a middle cross section located at a middle position between the two adhering surfaces. An area of the middle cross section is 115% to 200% of an area of any one of the two adhering surfaces. The adhesive layer can provide for light to travel therethrough, and enables the light therein to change direction and to attenuate. The sensor chip, the adhesive layer, and the light-permeable layer are embedded in the encapsulant, and an outer surface of the light-permeable layer is at least partially exposed from the encapsulant.
    Type: Application
    Filed: June 6, 2023
    Publication date: April 18, 2024
    Inventors: CHIA-SHUAI CHANG, CHIEN-HUNG LIN, WEI-LI WANG, WEN-FU YU, BAE-YINN HWANG
  • Patent number: 11961629
    Abstract: An antioxidant conductive thermal paste and a method of manufacturing the same are provided. The antioxidant conductive thermal paste includes a reactive monomer, a thermosetting resin, a polymerization inhibitor, an electrically conductive filler, and a thixotropic agent. The method consists of the steps of mixing a reactive monomer, a thermosetting resin, and a polymerization inhibitor evenly to get a first polymer mixture, and adding an electrically conductive filler and a thixotropic agent into the first polymer mixture in turn and blending the mixture evenly to obtain an antioxidant conductive thermal paste with good adherence, high electrical conductivity, high thermal conductivity, improved thermal-mechanical fatigue resistance or mechanical fatigue resistance.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: April 16, 2024
    Assignee: Geckos Technology Corp.
    Inventors: Wei-Chen Chang, Chen-Yen Fan, Ping-Hung Chen, Tsung-Huan Sheng
  • Patent number: 11940737
    Abstract: A method includes receiving a device design layout and a scribe line design layout surrounding the device design layout. The device design layout and the scribe line design layout are rotated in different directions. An optical proximity correction (OPC) process is performed on the rotated device design layout and the rotated scribe line design layout. A reticle includes the device design layout and the scribe line design layout is formed after performing the OPC process.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: March 26, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsueh-Yi Chung, Yung-Cheng Chen, Fei-Gwo Tsai, Chi-Hung Liao, Shih-Chi Fu, Wei-Ti Hsu, Jui-Ping Chuang, Tzong-Sheng Chang, Kuei-Shun Chen, Meng-Wei Chen
  • Publication number: 20240069636
    Abstract: A touch device includes a touch panel, a circuit board, a vibrating unit and a pressure detection module. The touch panel includes two press regions. When different press regions of the touch panel are pressed by the user, the vibration feedback values generated by different press regions are different.
    Type: Application
    Filed: September 14, 2022
    Publication date: February 29, 2024
    Inventors: Chieh-Hung Hsieh, Wei-Chiang Huang, Chao-Wei Lee, Hsueh-Chao Chang, Sian-Yi Chiu
  • Patent number: 11915746
    Abstract: A memory device includes a plurality of memory cells; a word line, connected to one of the plurality of memory cells, that is configured to provide a first WL pulse having a rising edge and a falling edge that define a pulse width of the first WL pulse; a first tracking WL, formed adjacent to the memory cells, that is configured to provide, via being physically or operatively coupled to a bit line (BL) configured to write a logic state to the memory cell, a second WL pulse having a rising edge with a decreased slope; and a first tracking BL, configured to emulate the BL, that is coupled to the first tracking WL such that the pulse width of the first WL pulse is increased based on the decreased slope of the rising edge of the second WL pulse.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: February 27, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-jer Hsieh, Yu-Hao Hsu, Zhi-Hao Chang, Cheng Hung Lee
  • Publication number: 20200019808
    Abstract: A multi-frequency high-precision object recognition method is disclosed, wherein a multi-frequency light emitting unit is used to emits lights of different frequencies onto an object-to-be-tested, and a multi-frequency image sensor unit is used to fetch the image of lights reflected from the object-to-be-tested. In an X axis and a Y axis is a single-piece planar image, while lights of different frequencies is used to form image depth in a Z axis. The sample light in the Z axis includes two infrared light narrow range image signals, each having wavelength between 850 nm and 1050 nm, and wavelength width between 10 nm and 60 nm. Calculate to obtain a plurality of single-piece planar images in the X axis and the Y axis as sampled by different wavelength widths in the Z axis, superimpose the plurality of single-piece planar images into a 3-dimension stereoscopic relief image for precise comparison and recognition.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: KUAN-YU LU, WEI-HSIN HUANG, WEI-HUNG CHANG, CHUN-SHING CHU
  • Publication number: 20200020671
    Abstract: A single-piece multi-frequency infrared light-emitting-diode (LED) and a multi-frequency high-precision object recognition system formed by using the same. The LED mentioned is formed by a first infrared light-emitting-die and a second infrared light-emitting-die space apart, having two different wavelengths with their ranges between 850 nm and 1050 nm, to serve as light source for the multi-frequency high-precision object recognition system, to obtain a 3-dimension stereoscopic relief image speedily. In addition, the system is less liable to be affected by the variations of ambient lights, so that the recognition precision for the entire object can be raised effectively. The single-piece multi-frequency infrared light-emitting-diode (LED) can be used extensively in security monitoring, industrial monitoring, human face recognition, image recognition for door opening of a vehicle.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: KUAN-YU LU, WEI-HSIN HUANG, WEI-HUNG CHANG, CHUN-SHING CHU
  • Patent number: 10534975
    Abstract: A multi-frequency high-precision object recognition method is disclosed, wherein a multi-frequency light emitting unit is used to emits lights of different frequencies onto an object-to-be-tested, and a multi-frequency image sensor unit is used to fetch the image of lights reflected from the object-to-be-tested. In an X axis and a Y axis is a single-piece planar image, while lights of different frequencies is used to form image depth in a Z axis. The sample light in the Z axis includes two infrared light narrow range image signals, each having wavelength between 850 nm and 1050 nm, and wavelength width between 10 nm and 60 nm. Calculate to obtain a plurality of single-piece planar images in the X axis and the Y axis as sampled by different wavelength widths in the Z axis, superimpose the plurality of single-piece planar images into a 3-dimension stereoscopic relief image for precise comparison and recognition.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: January 14, 2020
    Inventors: Kuan-Yu Lu, Wei-Hsin Huang, Wei-Hung Chang, Chun-Shing Chu
  • Patent number: 10448754
    Abstract: A clamp includes two clamping units spaced apart from each other, each of which includes a supporting mount, a tightening block and a tightening bolt. The supporting mount has an inclined guide face which faces an object to be clamped, and two through holes through which two fasteners respectively extend to engage an installation plane. The tightening block has a sliding face abutting against the inclined guide face, and is fastened on the supporting mount by the tightening bolt. A threaded portion of the tightening bolt passes through a passage hole of the tightening block to engage an engagement hole of the supporting mount, so that the tightening block is compelled by the tightening bolt to move along the inclined guide face.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: October 22, 2019
    Assignee: Door & Window Hardware Co.
    Inventors: Wei-Hung Chang, Ko-Yu Chang
  • Publication number: 20190230339
    Abstract: An image sensor capable of enhancing image recognition and application of the same, wherein the image sensor includes: a photosensitive pixel array, connected to a packaging circuit, that is used to drive the photosensitive pixel array to capture outside light, and convert outside light into combined image signal, the photosensitive pixel array captures full color RGB visible light and infrared (IR) invisible light, to perform photoelectric conversion; the packaging circuit is connected electrically to the photosensitive pixel array; and an image enhanced process unit, embedded in the packaging circuit, to control and regulate the image captured by the photosensitive pixel array. The captured image includes: a full color RGB visible light wide range image signal, and at least two Infrared (IR) invisible lights narrow range image signals. The two kinds of image signals are superimposed and combined into clear output image having stereoscopic sense of layers.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 25, 2019
    Inventors: Kuan-Yu Lu, Wei-Hsin Huang, Wei-Hung Chang, Chun-Shing Chu
  • Patent number: 10323438
    Abstract: A two-point lock includes a casing unit, an adjusting unit and a locking unit. The adjusting unit includes two first adjusting guide plates pivoted to casing unit, and two second adjusting guide plates pivoted to the casing unit. The locking unit includes first and second hook members respectively pivotable between the first adjusting guide plates and between the second adjusting guide plates. The first adjusting guide plates are operable to adjust an extent by which the first hook member extends out of the casing unit. The second adjusting guide plates are operable to adjust an extent by which the second hook member extends out of the casing unit.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 18, 2019
    Assignee: DOOR & WINDOW HARDWARE CO.
    Inventors: Wei-Hung Chang, Chih-Lun Hsieh
  • Publication number: 20180155964
    Abstract: A two-point lock includes a casing unit, an adjusting unit and a locking unit. The adjusting unit includes two first adjusting guide plates pivoted to casing unit, and two second adjusting guide plates pivoted to the casing unit. The locking unit includes first and second hook members respectively pivotable between the first adjusting guide plates and between the second adjusting guide plates. The first adjusting guide plates are operable to adjust an extent by which the first hook member extends out of the casing unit. The second adjusting guide plates are operable to adjust an extent by which the second hook member extends out of the casing unit.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 7, 2018
    Applicant: DOOR & WINDOW HARDWARE CO.
    Inventors: Wei-Hung Chang, Chih-Lun Hsieh
  • Publication number: 20170219005
    Abstract: A sheath for a cable for a bicycle includes a tubular lining, a reinforcing tube and a tubular colored layer. The reinforcing tube is provided on the tubular lining. The reinforcing tube includes a tubular plastic layer and a tubular web embedded in the tubular plastic layer. The tubular web includes two groups of helical fibers. The fibers in one group intersect the fibers in the other group. The tubular colored layer is provided on the tubular plastic layer.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 3, 2017
    Inventors: Yung-Pin Kuo, Wei-Hung Chang
  • Publication number: 20160356073
    Abstract: A guide device for a sliding door includes a base seat and a pair of side wall units. The base seat is formed with at least one guide groove. Each of the side wall units includes a rigid sidewall piece coupled to the base seat, movable relative to the base seat, and has at least one guide leg that engages slidably with the at least one guide groove. The rigid sidewall pieces of the side wall units define a gap therebetween. Each of the side wall units further includes a positioning element mounted to one of the rigid sidewall piece and the base seat and abutting releasably against the other one of the rigid sidewall piece and the base seat for locking the rigid sidewall piece to the base seat and fixing a width of the gap.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 8, 2016
    Inventors: Wei-Hung Chang, Sung-Hui Lin
  • Patent number: 9309691
    Abstract: A sliding-door handle device has an outside handle and an inside handle. The outside handle is mounted on and abuts the sliding door and has a connecting board and a pulling tab. The connecting board is shaped as an elongated strip and abuts an outer side of the sliding door. The pulling tab is formed on and protrudes perpendicularly from a front end of the connecting board such that the outside handle is formed in a T shape. The pulling tab has a pulling end and a pressing end. The inside handle is detachably connected to the outside handle via the sliding door to connect the outside handle with the sliding door and has an assembling mount.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 12, 2016
    Assignee: DOOR & WINDOW HARDWARE CO.
    Inventors: Wei-Hung Chang, Sung-Hui Lin
  • Patent number: 9145720
    Abstract: A magnetic locking apparatus has a body and an engaging mount. The body has a casing, a bolt and a driving device. The bolt is retractably mounted in the casing and has a connecting section, an engaging section and at least one magnetic element. The driving device is mounted in the casing and has a handle mount. The engaging mount faces the casing and the bolt and has a locking hole and at least one magnetic element mounted at two sides of the locking hole to attract the at least one magnetic element of the bolt.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 29, 2015
    Assignee: DOOR & WINDOW HARDWARE CO.
    Inventors: Wei-Hung Chang, Chih-Lun Hsieh
  • Patent number: 9140043
    Abstract: A hydraulic hinge buffer assembly for a door has a fastening device, a buffering device and a clamping device. The fastening device has a holding mount and a pivot block. The buffering device is mounted in the fastening device and has a pivot pin and a piston element. The pivot pin has an abutting face and at least one holding hook. The piston element is mounted between the holding mount and the pivot pin and has a pushing piston. The pushing piston has a pressing face selectively abutting the abutting face and at least one engaging hook axially formed on and protruding from the pressing face and engaging with the at least one holding hook. The clamping device is connected to the buffering device to rotate relative to the fastening device and has two clamping panels.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 22, 2015
    Assignee: DOOR & WINDOW HARDWARE CO.
    Inventors: Wei-Hung Chang, Tung-Hsuan Tsai