Patents by Inventor Chih-Chen Chang

Chih-Chen 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: 11266482
    Abstract: A balance mechanism comprises a working device, a connecting arm assembly having a variable length, a torque-balancing assembly, a weighting member, and a connecting member. The connecting arm assembly couples to the working device. The connecting arm assembly is pivoted to the torque-balancing assembly by a pivot. The weighting member couples to the torque-balancing assembly. The connecting member connects the connecting arm assembly and the torque-balancing assembly. As the distance between the working device and the pivot changes, the distance between the weighting member and the pivot changes accordingly, so that a dynamic balance can be achieved.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 8, 2022
    Assignee: Wistron Corporation
    Inventors: Chih-Chen Chang, Chih-Kuan Lin, Chi-Neng Weng, Chih-Ying Chu
  • Patent number: 11183369
    Abstract: Provided is a focalized microwave plasma reactor. The reactor utilizes a cylindrical microwave resonant cavity of the quasi-TM011 mode to focalize microwave power and to excite focalized microwave plasma for the processes of microwave plasma enhanced chemical vapour depositions.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: November 23, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chen Chang, Yu-Wen Chi, Kun-Ping Huang
  • Patent number: 11183805
    Abstract: A cable-arrangement structure includes two device bodies and a cable. The two device bodies are rotatably connected relative to a rotation axis. The cable has two fixed segments and a connecting segment connecting the two fixed segments. The two fixed segments are fixedly disposed on the two device bodies respectively. The connecting segment is movably disposed surrounding the rotation axis. An electrical apparatus includes the above cable-arrangement; therein, the cable electrically connects the two device bodies. When the two device bodies rotate relatively, by the movability characteristic of the connecting segment, the cable can be free of being tensed or twisted and will not hook other components, and the electrical connection of the two device bodies can be maintained.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 23, 2021
    Assignee: Wistron Corporation
    Inventors: Yi-Fan Hsieh, Chen-An Sung, Chih-Chen Chang, Yao-Tsung Chang
  • Publication number: 20210275044
    Abstract: An optical sensing device includes a device casing and an optical sensor on the device casing. In an embodiment, the optical sensing device further includes an image-capturing device on the device casing. The sensing direction of the optical sensor and the capturing direction of the image-capturing device point in the same direction. The image-capturing device can capture an image of an object to be sensed by the optical sensor. In another embodiment, the optical sensing device further includes a flexible shielding cover on the device casing and enclosing the optical sensor for shielding the optical sensor from external light.
    Type: Application
    Filed: June 28, 2020
    Publication date: September 9, 2021
    Inventors: Yi-Shang Lin, Chih-Chen Chang
  • Publication number: 20210143597
    Abstract: A cable-arrangement structure includes two device bodies and a cable. The two device bodies are rotatably connected relative to a rotation axis. The cable has two fixed segments and a connecting segment connecting the two fixed segments. The two fixed segments are fixedly disposed on the two device bodies respectively. The connecting segment is movably disposed surrounding the rotation axis. An electrical apparatus includes the above cable-arrangement; therein, the cable electrically connects the two device bodies. When the two device bodies rotate relatively, by the movability characteristic of the connecting segment, the cable can be free of being tensed or twisted and will not hook other components, and the electrical connection of the two device bodies can be maintained.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 13, 2021
    Inventors: Yi-Fan Hsieh, Chen-An Sung, Chih-Chen Chang, Yao-Tsung Chang
  • Publication number: 20200229894
    Abstract: A balance mechanism comprises a working device, a connecting arm assembly having a variable length, a torque-balancing assembly, a weighting member, and a connecting member. The connecting arm assembly couples to the working device. The connecting arm assembly is pivoted to the torque-balancing assembly by a pivot. The weighting member couples to the torque-balancing assembly. The connecting member connects the connecting arm assembly and the torque-balancing assembly. As the distance between the working device and the pivot changes, the distance between the weighting member and the pivot changes accordingly, so that a dynamic balance can be achieved.
    Type: Application
    Filed: April 16, 2019
    Publication date: July 23, 2020
    Inventors: Chih-Chen Chang, Chih-Kuan Lin, Chi-Neng Weng, Chih-Ying Chu
  • Publication number: 20200211825
    Abstract: Provided is a focalized microwave plasma reactor. The reactor utilizes a cylindrical microwave resonant cavity of the quasi-TM011 mode to focalize microwave power and to excite focalized microwave plasma for the processes of microwave plasma enhanced chemical vapour depositions.
    Type: Application
    Filed: August 1, 2019
    Publication date: July 2, 2020
    Applicant: Industrial Technology Research Institute
    Inventors: Chih-Chen Chang, Yu-Wen Chi, Kun-Ping Huang
  • Patent number: 10692742
    Abstract: An operating method of microwave heating device is provided, in which a holder is disposed in a heating chamber, and a plurality of microwave transmitters are arranged outside the heating chamber. A plurality of half-wave-rectified power supplies are provided to connect the microwave transmitters, and the half-wave-rectified power supplies have capacitances respectively. A plurality of longitudinal waveguides and a plurality of transverse waveguides are installed in between the heating chamber and the microwave transmitters. The capacitance of each of the capacitors of the half-wave-rectified power supplies is adjusted, such that the microwave power pulse bandwidth of the microwave transmitters are extended to produce a plurality of overlapped couplings.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 23, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Kun-Ping Huang, Jwu-Sheng Hu, Chih-Chen Chang
  • Patent number: 10555384
    Abstract: A modular microwave power supply comprises a plurality of microwave power supply modules and a plurality of isolating diodes. To upgrade the output power of the modular microwave power supply, the plurality of microwave power supply modules are connected isolatively in common to a magnetron load by the plurality of isolating diodes, such that power combining of the plurality of microwave power supply modules is achieved, and the efficiency as well as the accumulated-heat dissipating ability of the modular microwave power supply are as good as each of the plurality of microwave power supply modules.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: February 4, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chen Chang, Kun-Ping Huang
  • Publication number: 20190291098
    Abstract: The disclosure is related to a liquid processing module, a liquid testing system and a testing method. The liquid processing module includes a base, a first valve and at least one negative pressure generator. The base has a first groove and at least one first opening. The first opening is connected to the first groove. The first valve is slidably located in the first groove. The negative pressure generator is configured to generate or remove negative pressure at the first opening in response to the first opening and the first groove being connected with each other.
    Type: Application
    Filed: August 7, 2018
    Publication date: September 26, 2019
    Applicant: WISTRON CORP.
    Inventors: Chen-An SUNG, Chih Chen CHANG, Kai-Sheng CHEN
  • Patent number: 10231293
    Abstract: A multi-mode microwave heating device includes a heating chamber, a plurality of microwave transmitters, a plurality of longitudinal-polarized rectangular waveguides, a plurality of transverse-polarized rectangular waveguides, and a plurality of half-wave-rectified power supplies. The heating chamber has a holder for holding a to-be-heated object. The holder is connected to a rotating and an elevating mechanism. The microwave transmitters are connected to the heating chamber through the longitudinal-polarized rectangular waveguides as well as connected to the transverse-polarized rectangular waveguides for transmitting microwaves into the heating chamber and to excite multiple cavity modes of the heating chamber, so as to achieve uniform microwave heating.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 12, 2019
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chen Chang, Kun-Ping Huang
  • Publication number: 20180134562
    Abstract: A method of forming graphene flower is provided, which includes introducing a hydrocarbon gas and an assistance gas into transformer-coupled plasma equipment, and providing a medium-frequency electromagnetic wave to the hydrocarbon gas and the assistance gas by the transformer-coupled plasma equipment to dissociate the hydrocarbon gas, and the dissociated hydrocarbon gas is re-combined to form the graphene flower, wherein the hydrocarbon gas is dissociated at a ratio of greater than 95%.
    Type: Application
    Filed: December 26, 2017
    Publication date: May 17, 2018
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kun-Ping HUANG, Chih-Chen CHANG, Chwung-Shan KOU
  • Patent number: 9962711
    Abstract: An electrostatic air cleaner comprises a main body, a corona discharged module, a collector module and a fan. The main body has an airflow passage for disposing the corona discharged module, the collector module and the fan. The fan is used for drawing an air stream into the airflow passage. The corona discharged module is used for discharging particles in the air stream. The charged particles are then captured by the collector module.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: May 8, 2018
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Chih Chen, Chih-Chen Chang, Chen-Der Tsai, Chih-Yung Huang
  • Publication number: 20180122663
    Abstract: An operating method of microwave heating device is provided, in which a holder is disposed in a heating chamber, and a plurality of microwave transmitters are arranged outside the heating chamber. A plurality of half-wave-rectified power supplies are provided to connect the microwave transmitters, and the half-wave-rectified power supplies have capacitances respectively. A plurality of longitudinal waveguides and a plurality of transverse waveguides are installed in between the heating chamber and the microwave transmitters. The capacitance of each of the capacitors of the half-wave-rectified power supplies is adjusted, such that the microwave power pulse bandwidth of the microwave transmitters are extended to produce a plurality of overlapped couplings, thereby multiplying microwave mode numbers.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Kun-Ping Huang, Jwu-Sheng Hu, Chih-Chen Chang
  • Patent number: 9850134
    Abstract: A method of forming graphene flower is provided, which includes introducing a hydrocarbon gas and an assistance gas into transformer-coupled plasma equipment, and providing a medium-frequency electromagnetic wave to the hydrocarbon gas and the assistance gas by the transformer-coupled plasma equipment to dissociate the hydrocarbon gas, and the dissociated hydrocarbon gas is re-combined to form the graphene flower, wherein the hydrocarbon gas is dissociated at a ratio of greater than 95%.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: December 26, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kun-Ping Huang, Chih-Chen Chang, Chwung-Shan Kou
  • Publication number: 20170303347
    Abstract: A modular microwave power supply comprises a plurality of microwave power supply modules and a plurality of isolating diodes. To upgrade the output power of the modular microwave power supply, the plurality of microwave power supply modules are connected isolatively in common to a magnetron load by the plurality of isolating diodes, such that power combining of the plurality of microwave power supply modules is achieved, and the efficiency as well as the accumulated-heat dissipating ability of the modular microwave power supply are as good as each of the plurality of microwave power supply modules.
    Type: Application
    Filed: July 13, 2016
    Publication date: October 19, 2017
    Inventors: Chih-Chen Chang, Kun-Ping Huang
  • Publication number: 20170135163
    Abstract: A multi-mode microwave heating device includes a heating chamber, a plurality of microwave transmitters, a plurality of longitudinal-polarized rectangular waveguides, a plurality of transverse-polarized rectangular waveguides, and a plurality of half-wave-rectified power supplies. The heating chamber has a holder for holding a to-be-heated object. The holder is connected to a rotating and an elevating mechanism. The microwave transmitters are connected to the heating chamber through the longitudinal-polarized rectangular waveguides as well as connected to the transverse-polarized rectangular waveguides for transmitting microwaves into the heating chamber and to excite multiple cavity modes of the heating chamber, so as to achieve uniform microwave heating.
    Type: Application
    Filed: December 30, 2015
    Publication date: May 11, 2017
    Inventors: Chih-Chen Chang, Kun-Ping Huang
  • Publication number: 20170022064
    Abstract: A method of forming graphene flower is provided, which includes introducing a hydrocarbon gas and an assistance gas into transformer-coupled plasma equipment, and providing a medium-frequency electromagnetic wave to the hydrocarbon gas and the assistance gas by the transformer-coupled plasma equipment to dissociate the hydrocarbon gas, and the dissociated hydrocarbon gas is re-combined to form the graphene flower, wherein the hydrocarbon gas is dissociated at a ratio of greater than 95%.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 26, 2017
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kun-Ping HUANG, Chih-Chen CHANG, Chwung-Shan KOU
  • Publication number: 20160158766
    Abstract: An electrostatic air cleaner comprises a main body, a corona discharged module, a collector module and a fan. The main body has an airflow passage for disposing the corona discharged module, the collector module and the fan. The fan is used for drawing an air stream into the airflow passage. The corona discharged module is used for discharging particles in the air stream. The charged particles are then captured by the collector module.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 9, 2016
    Inventors: CHIEN-CHIH CHEN, Chih-Chen Chang, Chen-Der Tsai, Chih-Yung Huang
  • Publication number: 20160028151
    Abstract: A housing, includes a base and at least one non-conductive element, the base has at least one metal sheet and at least one main body, the metal sheet and the at least one main body both have a plurality of nano-pores, the non-conductive element is located at the spaces between the at least one main body and the metal sheet adjacent to the main body, and filled into the nano-pores to bond the at least one metal sheet and the at least one main body together.
    Type: Application
    Filed: January 12, 2015
    Publication date: January 28, 2016
    Inventors: MONG-HAU TSAI, CHUN-YU CHEN, CHIA-HUNG SU, CHIH-CHEN CHANG, CHIEN-HUNG LIN, AN-JUI CHANG