Patents by Inventor Chia-Chang Chang

Chia-Chang 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).

  • Patent number: 11851534
    Abstract: A method for preparing a fiber-containing molding compound includes the acts of a) providing a composite material which includes a first resin and fibers impregnated with the first resin, and b) mixing the composite material with a treatment medium which includes a diluent to form a mixture. The fiber-containing molding compound thus prepared has an adjustable fiber content.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: December 26, 2023
    Assignee: SRAM, LLC
    Inventors: Hung I Chen, Chia-Chang Chang, Ching-Han Liu, Huan-Ching Hsu
  • Publication number: 20230311371
    Abstract: Disclosed is a method for manufacturing a reinforced synthetic product with a curved geometry, which includes forming a fabric made of at least one filament bundle including a reinforcing fiber material and at least one thermoplastic filament woven with the filament bundle; and combining a heat-formable material with the fabric to form a bendable fabric preform sheet. Also disclosed is a method for manufacturing a reinforced synthetic product with a curved geometry, which includes positioning the bendable fabric preform sheet into a mold with a curved geometry to form a bended fabric preform sheet; and molding the bended fabric preform sheet by heating to form a cured product.
    Type: Application
    Filed: January 30, 2023
    Publication date: October 5, 2023
    Applicant: SRAM, LLC
    Inventors: Chen Hsiung CHEN, Chia Chang CHANG, Huan Ching HSU, Ching Han LIU, Chu Chen WANG
  • Publication number: 20210079191
    Abstract: A method for preparing a fiber-containing molding compound includes the acts of a) providing a composite material which includes a first resin and fibers impregnated with the first resin, and b) mixing the composite material with a treatment medium which includes a diluent to form a mixture. The fiber-containing molding compound thus prepared has an adjustable fiber content.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 18, 2021
    Applicant: SRAM, LLC
    Inventors: HUNG I CHEN, CHIA-CHANG CHANG, CHING-HAN LIU, HUAN-CHING HSU
  • Publication number: 20190158602
    Abstract: A data collecting system includes a management server, a number of data collecting chains. Each data collecting chain includes a computer connected to the management server, at least one sensor and a data acquisition (DAQ), coupled to the sensor(s) and connected to the computer through RS485, configured to acquire sensing data from the sensor(s) and transmit the sensing data to the computer. The DAQs are connected to the computers through a wireless backup transmission interface. The management server sends a first confirmation signal to the computers. When at least one of the computers does not respond to the first confirmation signal, the management server indicates the computers which have responded to the first confirmation signal to receive the sensing data from the DAQ(s) corresponding to the computer(s) which doesn't respond to the first confirmation signal through the wireless backup transmission interface.
    Type: Application
    Filed: December 6, 2017
    Publication date: May 23, 2019
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Kun-Yu LIN, Chia-Chang Chang, Chih-Chieh Lin, Chien-Chih Lu, Cheng-Tsai Lai, Jun-Ren Chen, Hung-Sheng Chiu
  • Patent number: 9972554
    Abstract: A wafer level chip scale package (WLCSP) has a device chip, a carrier chip, an offset pad, a conductive spacing bump and a through hole via (THV). The device chip is attached to the carrier chip. The offset pad is disposed on a first surface of the device chip. The conductive spacing bump is formed on the offset pad. The through hole via includes a through hole and a hole metal layer. The through hole penetrates through the carrier chip and the device chip, and the hole metal layer is formed in the through hole and in contact with the offset pad.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 15, 2018
    Assignee: POWERTECH TECHNOLOGY INC.
    Inventors: Li-Chih Fang, Chia-Chang Chang, Hung-Hsin Hsu, Wen-Hsiung Chang, Kee-Wei Chung, Chia-Wen Lien
  • Publication number: 20170256471
    Abstract: A wafer level chip scale package (WLCSP) has a device chip, a carrier chip, an offset pad, a conductive spacing bump and a through hole via (THV). The device chip is attached to the carrier chip. The offset pad is disposed on a first surface of the device chip. The conductive spacing bump is formed on the offset pad. The through hole via includes a through hole and a hole metal layer. The through hole penetrates through the carrier chip and the device chip, and the hole metal layer is formed in the through hole and in contact with the offset pad.
    Type: Application
    Filed: February 15, 2017
    Publication date: September 7, 2017
    Inventors: Li-Chih Fang, Chia-Chang Chang, Hung-Hsin Hsu, Wen-Hsiung Chang, Kee-Wei Chung, Chia-Wen Lien
  • Publication number: 20120275148
    Abstract: An optical reflective film and a light emitting device are provided. The optical reflective film includes a main body, organic particles, inorganic particles, and voids. The main body is made of polyolefin. A refractive index difference N of the optical reflective film is defined in the following equation, and its value ranges from 0.05 to 0.7: N = ? ( blr - alr ) × blc ? + ? ( clr - alr ) × clc ? + ? ( dlr - alr ) × dlc ? 100 In above equation, alr is refractive index of polyolefin, alc is weight percentage of the main body in the optical reflective film. blr is refractive index of the organic particles disposed in the main body, blc is weight percentage of the organic particles, clr is refractive index of inorganic particles disposed in the main body; clc is weight percentage of organic particles; dlr is refractive index of voids disposed in the main body, and dlc is the void ratio of optical reflective film.
    Type: Application
    Filed: July 22, 2011
    Publication date: November 1, 2012
    Inventors: Wei-Ting YEH, Chia-Yin Yao, Chia-Chang Chang, Wen-Sheng Wang
  • Patent number: 8218004
    Abstract: A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: July 10, 2012
    Assignee: Cycling & Health Tech Industry R&D Center
    Inventors: Chern-Sheng Lin, Chia-Tse Chen, Tzu-Chi Wei, Wei-Lung Chen, Chia-Chang Chang
  • Patent number: 8058333
    Abstract: A flame retarding composite material includes at least a PC resin, an ABS resin, a flame retardant having a P?X double bond, and an additive. The PC resin in the composite material is in the range of 60 wt % to 80 wt %. The ABS resin in the composite material is in the range of 15 wt % to 35 wt %. The additive can includes 5 wt % to 37 wt % of glass fiber.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 15, 2011
    Assignee: Entire Technology Co., Ltd.
    Inventors: Chia-Chang Chang, Wen-Sheng Wang, Yu Wei Chang
  • Patent number: 7953244
    Abstract: A system integrating machine vision, interactive module and rehabilitation equipment primarily comprises a rehabilitation equipment, at least one image-capture device for continuously capturing images of specific limbs or a trunk of a user operating the rehabilitation equipment so as to generate digital image data, and a machine vision recognition unit for processing the digital image data into characteristic image data that can be analyzed and applied by a host computer belonging to the machine vision recognition unit. Then, the host computer can transform the characteristic image data into direction signals and velocity signals with respect to movements of the user's limbs and trunk and afterward output the signals to an interactive module.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 31, 2011
    Assignee: Cycling & Health Tech Industry
    Inventors: Chia-Chang Chang, Wei-Lung Chen, Tzu-Peng Chiang
  • Publication number: 20110096161
    Abstract: A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Inventors: Chern-Sheng Lin, Chia-Tse Chen, Tzu-Chi Wei, Wei-Lung Chen, Chia-Chang Chang
  • Publication number: 20100173747
    Abstract: An upper-limb training apparatus allows a user's two upper limbs to independently and actively perform flexion and extension along a round track, so that the user's the two upper limbs can receive proper training, respectively.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 8, 2010
    Inventors: Wei-Long Chen, Chia-Chang Chang
  • Patent number: 7635325
    Abstract: An interactive training device comprises an operation unit and an interaction unit. The operation unit has a movable plate built therein with a G-sensor so that motions of the movable plate in response to a user's operation are sensed by the G-sensor and further converted into particular signals to be output to the interaction unit.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: December 22, 2009
    Assignee: Cycling and Health Tech Industry Research & Development Center
    Inventors: Tzu-Peng Chiang, Wei-Long Chen, Chia-Chang Chang
  • Publication number: 20090283648
    Abstract: A front-wheel steering gear having a function of outputting a directional signal, comprises a turntable assembly, which has a stationary base, a turntable rotatably mounted on the stationary base and a front-wheel positioning rack fixedly attached to a top surface of the turntable; an axially extendable rail, having one end thereof connected to the stationary base of the turntable assembly; a rear-wheel positioning rack, connected to another end of the rail; and a steering sensor, provided on the turntable assembly for detecting rotational directions and angles of the turntable and outputting signals corresponding to the rotational directions and angles to an interactive device.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Inventors: Tzu-Peng Chiang, Wei-Long Chen, Chia-Chang Chang
  • Publication number: 20090275451
    Abstract: An interactive training device comprises an operation unit and an interaction unit. The operation unit has a movable plate built therein with a G-sensor so that motions of the movable plate in response to a user's operation are sensed by the G-sensor and further converted into particular signals to be output to the interaction unit.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 5, 2009
    Inventors: Tzu-peng Chiang, Wei-Long Chen, Chia-Chang Chang
  • Publication number: 20090143197
    Abstract: The present invention discloses a dual-shaft hinge module for an interactive training apparatus. The dual-shaft hinge module comprises a first shaft assembly and a second shaft assembly, which orthogonally intersect and are positioned at a shaft seat. The first shaft assembly and the second shaft assembly can be controlled by a main post to rotated clockwise or anticlockwise against axes thereof. A first sensing and the second sensing units sense rotational directions and angles of the first and the second shaft assemblies to generate signals accordingly. The signals are then transmitted to an interactive device.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Chung-Chieh Chen, Wei-Lung Chen, Chia-Chang Chang, Tzu-Peng Chiang
  • Publication number: 20090063056
    Abstract: A system integrating machine vision, interactive module and rehabilitation equipment primarily comprises a rehabilitation equipment, at least one image-capture device for continuously capturing images of specific limbs or a trunk of a user operating the rehabilitation equipment so as to generate digital image data, and a machine vision recognition unit for processing the digital image data into characteristic image data that can be analyzed and applied by a host computer belonging to the machine vision recognition unit. Then, the host computer can transform the characteristic image data into direction signals and velocity signals with respect to movements of the user's limbs and trunk and afterward output the signals to an interactive module.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Inventors: Chia-Chang Chang, Wei-Lung Chen, Tzu-Peng Chiang
  • Publication number: 20080099429
    Abstract: Methods for repairing patterned structure of electronic devices. A first substrate with a patterned structure thereon is provided, wherein the patterned structure includes at least one defect. The defect corresponds to a defect region while the patterned structure corresponds to a main region. A first surface treatment is performed on the defect region such that the surface characteristics on the defect region are different from those on the main region. The defect region is repaired by inkjet printing. A second surface treatment is performed on the defect region such that the surface characteristics on the defect region are the same as those on the main region.
    Type: Application
    Filed: July 25, 2007
    Publication date: May 1, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Kai Cheng, Chieh-Yi Huang, Wan-Wen Chiu, Chun-Hung Lin, Chia-Chang Chang