Patents by Inventor Chih-Hung Chang

Chih-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).

  • Patent number: 10775858
    Abstract: A liquid immersion cooling tank includes a reservoir and a liquid flow tube. The reservoir contains an insulating coolant to immerse an electronic device. The liquid flow tube includes an adjusting member. The reservoir includes an inlet and an outlet. The inlet and the outlet are respectively arranged at opposite ends of the electronic device. The liquid flow tube is located inside the reservoir. The liquid flow tube is coupled to at least one of the inlet and the outlet. The adjusting member faces the electronic device to control an amount of inflow or outflow of the insulating coolant. When the electronic device is immersed in the reservoir for cooling, the insulating coolant flows through the electronic device. The liquid flow tube coupled to the inlet or the outlet of the reservoir uses the adjusting member to control the amount of inflow or outflow of the insulating coolant.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 15, 2020
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Tze-Chern Mao, Yen-Chun Fu, Chih-Hung Chang, Yao-Ting Chang, Li-Wen Chang, Chao-Ke Wei
  • Publication number: 20200263831
    Abstract: A system for better utilization of liquefied natural gas (LNG) on gasification of the liquid includes a gas power generation subsystem, a steam power generation subsystem, an energy storage subsystem, and a cooling subsystem. A gasification device of the gas power generation subsystem renders the LNG gaseous and collects cold energy generated during the gasification. The gas is supplied to the gas power generation device for generating electrical power and the cold energy is supplied to the steam power generation subsystem and the cold storage subsystem. Electrical power generated by the gas power generation subsystem and the steam power generation subsystem is supplied to the cooling subsystem, and the energy stored in the energy storage subsystem is also supplied to the cooling subsystem.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 20, 2020
    Inventors: YEN-CHUN FU, TZE-CHERN MAO, CHAO-KE WEI, CHIH-HUNG CHANG
  • Patent number: 10745193
    Abstract: An equipment moving device for moving equipment in and out of a container includes a base, a cover rotationally coupled to the base, a driving member mounted to an outer side of the cover, a transmission assembly mounted within the base and the cover and coupled to the driving member, and a pushing member. One end of the pushing member is coupled to the transmission assembly, and another end of the pushing member is mounted to the equipment. The driving member causes the transmission assembly to drive the pushing member to move the equipment.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 18, 2020
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Chih-Hung Chang, Yen-Chun Fu, Tze-Chern Mao
  • Publication number: 20200257342
    Abstract: A liquid immersion cooling tank includes a reservoir and a liquid flow tube. The reservoir contains an insulating coolant to immerse an electronic device. The liquid flow tube includes an adjusting member. The reservoir includes an inlet and an outlet. The inlet and the outlet are respectively arranged at opposite ends of the electronic device. The liquid flow tube is located inside the reservoir. The liquid flow tube is coupled to at least one of the inlet and the outlet. The adjusting member faces the electronic device to control an amount of inflow or outflow of the insulating coolant. When the electronic device is immersed in the reservoir for cooling, the insulating coolant flows through the electronic device. The liquid flow tube coupled to the inlet or the outlet of the reservoir uses the adjusting member to control the amount of inflow or outflow of the insulating coolant.
    Type: Application
    Filed: March 8, 2019
    Publication date: August 13, 2020
    Inventors: TZE-CHERN MAO, YEN-CHUN FU, CHIH-HUNG CHANG, YAO-TING CHANG, LI-WEN CHANG, CHAO-KE WEI
  • Publication number: 20200248667
    Abstract: A data center able to use the heat generated by its own operation for energy-saving purposes comprises at least one casing, a heat generating portion, an exhausting pipe, and a power generator. The heat generating portion received in the at least one casing generates heat in operating. The at least one casing defines an exhaust vent and an intake vent. The exhaust vent allows the at least one casing to communicate with the exhausting pipe. Cold air at the intake vent flows into the at least one casing and is heated by the heat generating portion to form a hot airflow. The exhausting pipe carries the hot airflow from the exhaust vent. The power generator is powered by the hot airflow in the exhausting pipe to produce electrical energy.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 6, 2020
    Inventors: CHIH-HUNG CHANG, CHAO-KE WEI, TZE-CHERN MAO, YEN-CHUN FU
  • Publication number: 20200236814
    Abstract: A cooling device for data center includes: a housing chamber configured for housing the data center; an air inlet plenum positioned at one side of the housing chamber and configured for inflowing of external natural wind; an air outlet plenum positioned at another side of the housing chamber; an air return plenum defining two opposite ends communicated with the air inlet plenum and the air outlet plenum, and comprising a return air damper; a controller connected to the return air damper and adapted for controlling the opening and closing of the return air damper; and a refrigeration module located in the air inlet plenum and connected to the controller. A cooling system for data center is also provided.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 23, 2020
    Inventors: TZE-CHERN MAO, YEN-CHUN FU, CHIH-HUNG CHANG, HUI-HSUAN WANG, YAO-TING CHANG, CHAO-KE WEI
  • Publication number: 20200236802
    Abstract: A chassis includes a case and a sliding cover mounted on the case. The case defines a receiving space configured to receive electronic equipment and cooling liquid. The sliding cover includes a sliding frame and a number of cover plates. The sliding frame is arranged in an opening of the receiving space. Each of the cover plates is slidably mounted in the sliding frame. The cover plates cooperatively seal the receiving space when the cover plates are not overlapped with each other in the sliding frame.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 23, 2020
    Inventors: CHIH-HUNG CHANG, CHAO-KE WEI, TZE-CHERN MAO, YEN-CHUN FU
  • Publication number: 20200196489
    Abstract: A heat dissipation apparatus for a plurality of heat-generating electrical devices in a server dissipates heat of the heat-generating electrical devices by using heat-absorbing liquid. The apparatus includes a container, an inlet pipe, and an outlet pipe. The container contains a non-conductive coolant liquid and the plurality of heat-generating electrical devices are entirely submerged in the coolant liquid.
    Type: Application
    Filed: December 27, 2018
    Publication date: June 18, 2020
    Inventors: CHIH-HUNG CHANG, CHAO-KE WEI, TZE-CHERN MAO, YEN-CHUN FU, YAO-TING CHANG, LI-WEN CHANG
  • Patent number: 10667434
    Abstract: A liquid immersion cooling device includes a mounting frame, a liquid reservoir mounted to the mounting frame, and a cold source distributor mounted on an outer side of the mounting frame. The liquid reservoir is configured to immerse a server in an insulating coolant. The liquid reservoir is movably mounted to the mounting frame. The cold source distributor comprises a telescopic cold source tube and a telescopic heat return tube. An output end of the cold source tube and an output end of the heat return tube are coupled to the liquid reservoir. When the liquid reservoir is pulled out of the mounting frame, the cold source tube and the heat return tube are extended by the liquid reservoir to a predetermined length. When the liquid reservoir is pushed into the mounting frame, the cold source tube and the heat return tube are retracted.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 26, 2020
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Tze-Chern Mao, Li-Wen Chang, Chao-Ke Wei, Yao-Ting Chang, Chih-Hung Chang, Yen-Chun Fu, Ching-Tang Liu
  • Patent number: 10645841
    Abstract: A cooling device includes a cooling tank, a support frame, and a rotary shaft. The cooling tank accommodates coolant and an electronic device. The electronic device is immersed in the coolant. The support frame defines an opening in a first side plate and a receiving space communicating with the opening. The cooling tank is received in the receiving space. The cooling tank includes a base plate and a sidewall. The rotary shaft is rotationally mounted to a bottom corner of the cooling tank formed by the base plate and the sidewall. The rotary shaft serves as a rotating axis of the cooling tank to rotate the cooling tank out of the opening.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 5, 2020
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Tze-Chern Mao, Yao-Ting Chang, Chih-Hung Chang, Yen-Chun Fu, Li-Wen Chang, Chao-Ke Wei
  • Publication number: 20200071070
    Abstract: An equipment moving device for moving equipment in and out of a container includes a base, a cover rotationally coupled to the base, a driving member mounted to an outer side of the cover, a transmission assembly mounted within the base and the cover and coupled to the driving member, and a pushing member. One end of the pushing member is coupled to the transmission assembly, and another end of the pushing member is mounted to the equipment. The driving member causes the transmission assembly to drive the pushing member to move the equipment.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 5, 2020
    Inventors: CHIH-HUNG CHANG, YEN-CHUN FU, TZE-CHERN MAO
  • Publication number: 20200071066
    Abstract: A movable equipment loading and unloading structure for movably mounting equipment within a container includes a loading and unloading assembly and a guide assembly. The loading and unloading assembly includes a loading and unloading rail mounted to a ceiling of the container and a loading and unloading wheel assembly movably coupled to the loading and unloading rail. The loading and unloading wheel assembly is mounted to a side of the equipment. The guide assembly includes a guide rail mounted to a floor of the container and at least one guide wheel rollably coupled to the guide rail. The guide wheel is mounted to another side of the equipment opposite to the side mounted to the loading and unloading wheel assembly.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 5, 2020
    Inventors: CHIH-HUNG CHANG, YEN-CHUN FU, TZE-CHERN MAO, CHAO-KE WEI
  • Patent number: 10568234
    Abstract: A liquid-immersion cooling device includes a reservoir, a partition board, and a heat exchanger. The reservoir contains coolant to immerse the electronic device. The partition board and the heat exchanger are mounted within the reservoir. The partition board is arranged parallel to the electronic device. The heat exchanger and the electronic device are respectively arranged on opposite sides of the partition board within the reservoir. The partition board is configured to guide a flow of the coolant within the reservoir. When the coolant flows through the electronic device and carries away heat generated by the electronic device, the coolant carrying the heat is guided by the partition board to flow through the heat exchanger. After exchanging heat with the heat exchanger, the coolant is guided by the partition board to flow through the electronic device.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: February 18, 2020
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Tze-Chern Mao, Chih-Hung Chang, Yen-Chun Fu, Yao-Ting Chang, Li-Wen Chang, Chao-Ke Wei
  • Patent number: 10415757
    Abstract: A heat exchange system employed to gasify liquid natural gas (LNG) or for other required purpose includes the cold substance such as LNG, a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the cold substance and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transmits heat of the heat dissipation apparatus to water of the water storage tank to cool the heating portion, and the heating portion transmits heat of the water of the water storage tank to the cold substance.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 17, 2019
    Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CO., LTD.
    Inventors: Tze-Chern Mao, Chih-Hung Chang, Yen-Chun Fu, Chao-Ke Wei, Yao-Ting Chang, Hung-Chou Chan
  • Patent number: 10330262
    Abstract: A heat exchange system includes a cold source, a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the cold source and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transmits heat of the heat dissipation apparatus to water of the water storage tank to cool the heating portion, and the heating portion transmits heat of the water of the water storage tank to the cold source to heat the cold source.
    Type: Grant
    Filed: May 8, 2016
    Date of Patent: June 25, 2019
    Assignee: Cloud Network Technology Singapore Pte. Ltd.
    Inventors: Tze-Chern Mao, Chih-Hung Chang, Yen-Chun Fu, Chao-Ke Wei, Yao-Ting Chang, Hung-Chou Chan
  • Patent number: 10299663
    Abstract: A wide-angle illumination device includes a base, a first light guiding module and two second light guiding modules. The base includes a central region and two lateral regions, and the two lateral regions are respectively located on opposite positions of the central region. A first light emitting module is disposed on the central region, and two second light emitting modules are disposed on the two lateral regions. The first light guiding module is disposed on the central region and matched with the first light emitting module, to guide a first optical signal of the first light emitting module toward a front of the base. The two second light guiding modules are disposed on the lateral regions and matched with the second light emitting modules, to guide a second optical signal of the second light emitting module out of an end of the base.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 28, 2019
    Assignee: VIVOTEK INC.
    Inventors: Chih-Hung Chang, Yi-Hsin Yeh
  • Patent number: 10274421
    Abstract: Disclosed herein are embodiments of sensor devices comprising a sensing component able to determine the presence of, detect, and/or quantify detectable species in a variety of environments and applications. The sensing components disclosed herein can comprise MOF materials, plasmonic nanomaterials, redox-active molecules, a metal, or any combinations thereof. In some exemplary embodiments, optical properties of the plasmonic nanomaterials and/or the redox-active molecules combined with MOF materials can be monitored directly to detect analyte species through their impact on external conditions surrounding the material or as a result of charge transfer to and from the plasmonic nanomaterial and/or the redox-active molecule as a result of interactions with the MOF material.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 30, 2019
    Assignees: Oregon State University, U.S. Department of Energy
    Inventors: Chih-hung Chang, Ki-Joong Kim, Alan X. Wang, Yujing Zhang, Xinyuan Chong, Paul R. Ohodnicki
  • Publication number: 20190096513
    Abstract: Systems and methods are disclosed for the measurement of patient outcomes in a rehabilitation setting. In one exemplary method, an assessment relating to self-care is provided, an assessment relating to mobility is provided, and an assessment relating to cognition is provided, wherein the assessments have been pre-selected using item response theory.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 28, 2019
    Inventors: Chih-Hung Chang, Andrew Bodine, James A. Sliwa
  • Publication number: 20190093824
    Abstract: A heat exchange system employed to gasify liquid natural gas (LNG) or for other required purpose includes the cold substance such as LNG, a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the cold substance and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transmits heat of the heat dissipation apparatus to water of the water storage tank to cool the heating portion, and the heating portion transmits heat of the water of the water storage tank to the cold substance.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: TZE-CHERN MAO, CHIH-HUNG CHANG, YEN-CHUN FU, CHAO-KE WEI, YAO-TING CHANG, HUNG-CHOU CHAN
  • Patent number: 10189003
    Abstract: Systems and methods for synthesizing nanocrystals using continuous, microwave-assisted, segmented flow reactor.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 29, 2019
    Assignee: OREGON STATE UNIVERSITY
    Inventors: Ki-Joong Kim, Eric Bradley Hostetler, Gregory Scott Herman, Daniel Alan Peterson, Chih-hung Chang, Brendan Thomas Flynn, Brian Kevin Paul, Richard Paul Oleksak, Padmavathi Chandran, Bob C. Fitzmorris, Gustavo Henrique Albuquerque