Patents by Inventor Li-Wen Chang

Li-Wen 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: 20250050446
    Abstract: A method for calibrating a laser machining system includes a scanner device for deflecting a laser beam to a plurality of positions on a surface and includes an observation device, an observation beam path of which runs coaxially to the laser beam path over the scanner device. The method includes calibrating the scanner device and calibrating the observation device. A laser machining system for machining a workpiece by means of a laser beam with a control configured to carry out said method is also provided.
    Type: Application
    Filed: August 6, 2024
    Publication date: February 13, 2025
    Inventors: Tom Walde, Rüdiger Moser, Li Wen Chang, Dennis Hornbacher
  • Patent number: 12200915
    Abstract: A temperature control device includes a temperature sensor configured to detect a temperature within a server. When the temperature in the server is below a preset temperature, the control unit controls an interior heating assembly to heat the server, and closes a ventilation assembly to retain heat within the server. When the temperature in the server has reached the preset temperature, the control unit controls the heating assembly to stop the internal heating, and controls the ventilation assembly to open, to allow dissipation of the heat from the server.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: January 14, 2025
    Assignee: Fulian Precision Electronics (Tianjin) Co., LTD.
    Inventors: Tze-Chern Mao, Li-Wen Chang, Yen-Chun Fu, Chih-Hung Chang, Yao-Ting Chang, Chao-Ke Wei
  • Publication number: 20240424600
    Abstract: An optical coherence tomography device for a laser machining system for measuring distance to an object in a predetermined distance range comprises: a measuring arm for directing a measuring light beam at the object; a reference arm for guiding a reference beam with a plurality of reference sections having different measuring ranges; and a controllable switching element for switching between the reference sections of the reference arm. The measuring range of each reference section comprises a negative active measuring range and a positive active measuring range, between which a dead zone is located. The dead zone of one of the reference sections is overlapped by a positive or negative active measuring range of at least one other reference section. The positive and negative active measuring ranges of the reference sections together cover the predetermined distance range.
    Type: Application
    Filed: June 21, 2024
    Publication date: December 26, 2024
    Inventors: Igor Shkarban, Rüdiger Moser, Li Wen Chang
  • Publication number: 20240293891
    Abstract: A method and a laser processing system are for laser processing a workpiece by a laser beam. The method includes: recording an image of the workpiece with a camera, the beam path of which is coaxially coupled into a beam path of the laser beam and runs together with the beam path of the laser beam via a scanning device; determining a respective contour point for each measuring line of a plurality of measuring lines which are laid through an expected contour path of the workpiece in the recorded image; determining an actual contour path of the workpiece based on the determined contour points; and controlling the scanning device for positioning the laser beam for laser processing based on the actual contour path.
    Type: Application
    Filed: March 1, 2024
    Publication date: September 5, 2024
    Inventors: Tom WALDE, Matthias WERNER, Martin HOCHBERG, Li Wen CHANG
  • Publication number: 20240256012
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Application
    Filed: April 11, 2024
    Publication date: August 1, 2024
    Inventors: TZE-CHERN MAO, Yen-Chun Fu, Chih-Hung Chang, Yao-Ting Chang, Li-Wen Chang, Chao-Ke Wei
  • Patent number: 12001251
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: June 4, 2024
    Assignee: Fulian 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: 20230403831
    Abstract: A temperature control device includes a temperature sensor configured to detect a temperature within a server. When the temperature in the server is below a preset temperature, the control unit controls an interior heating assembly to heat the server, and closes a ventilation assembly to retain heat within the server. When the temperature in the server has reached the preset temperature, the control unit controls the heating assembly to stop the internal heating, and controls the ventilation assembly to open, to allow dissipation of the heat from the server.
    Type: Application
    Filed: November 30, 2022
    Publication date: December 14, 2023
    Inventors: TZE-CHERN MAO, LI-WEN CHANG, YEN-CHUN FU, CHIH-HUNG CHANG, YAO-TING CHANG, CHAO-KE WEI
  • Publication number: 20230337401
    Abstract: A containerized data system, including a container body, a first cabinet array, a second cabinet array and a plurality of first air-conditioning devices. The first cabinet array and the second cabinet array are positioned in the container body and spaced apart from each other. Air intake areas of the first cabinet array and the second cabinet array communicates with a cold aisle connection space of the container body. Heat dissipation areas of the first cabinet array and the second cabinet array communicate with a hot aisle connection space of the container body. Air inlets of the first air-conditioning devices are communicated with the hot aisle connection space to collect the hot air flow in the container body, and air outlets of the plurality of first air-conditioning devices are communicated with the cold aisle connection space to convey the cold air flow to the container body.
    Type: Application
    Filed: June 26, 2023
    Publication date: October 19, 2023
    Inventors: CHAO-KE WEI, TZE-CHERN MAO, YAO-TING CHANG, YEN-CHUN FU, CHING-TANG LIU, CHIH-HUNG CHANG, LI-WEN CHANG
  • Patent number: 11792960
    Abstract: A containerized data system, including a container body, a first cabinet array, a second cabinet array and a plurality of first air-conditioning devices. The first cabinet array and the second cabinet array are positioned in the container body and spaced apart from each other. Air intake areas of the first cabinet array and the second cabinet array communicates with a cold aisle connection space of the container body. Heat dissipation areas of the first cabinet array and the second cabinet array communicates with a hot aisle connection space of the container body. Air inlets of the first air-conditioning devices are communicated with the hot aisle connection space to collect the hot air flow in the container body, and air outlets of the plurality of first air-conditioning devices are communicated with the cold aisle connection space to convey the cold air flow to the container body.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: October 17, 2023
    Assignee: Fulian Precision Electronics (Tianjin) Co., LTD.
    Inventors: Chao-Ke Wei, Tze-Chern Mao, Yao-Ting Chang, Yen-Chun Fu, Ching-Tang Liu, Chih-Hung Chang, Li-Wen Chang
  • Publication number: 20230305609
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Application
    Filed: June 1, 2023
    Publication date: September 28, 2023
    Inventors: TZE-CHERN MAO, YEN-CHUN FU, CHIH-HUNG CHANG, YAO-TING CHANG, LI-WEN CHANG, CHAO-KE WEI
  • Patent number: 11714467
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: August 1, 2023
    Assignee: Fulian Precision Electronics (Tianjin) Co., LTD.
    Inventors: Tze-Chern Mao, Yen-Chun Fu, Chih-Hung Chang, Yao-Ting Chang, Li-Wen Chang, Chao-Ke Wei
  • Patent number: 11477918
    Abstract: A heat exchange system includes a heat-absorbing substance such as Liquid Natural Gas (LNG), a heat dissipation apparatus, a water storage tank, a heat exchanger, and a heat exchanger. The heat exchanger is coupled between the LNG and the water storage tank. The heat exchanger is coupled between the heat dissipation apparatus and the water storage tank. The heat exchanger transfers heat of the heat dissipation apparatus to water of the water storage tank to lose heat to the heat exchanger, and the heat exchanger transfers heat of the water to the LNG.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 18, 2022
    Assignee: Fulian Precision Electronics (Tianjin) Co., LTD.
    Inventors: Tze-Chern Mao, Yen-Chun Fu, Chih-Hung Chang, Chao-Ke Wei, Li-Wen Chang, Ching-Tang Liu, Hung-Chou Chan
  • Publication number: 20220202952
    Abstract: An immunostimulatory lipoplex is provided. The immunostimulatory lipoplex includes a liposome and at least one immunostimulatory nucleic acid drug, and the immunostimulatory nucleic acid drug is complexed with the liposome The liposome includes 40 to 85 mol % of cationic lipid, 10 to 50 mol % of cholesterol, and 0.001 to 20 mol % of modified polyethylene glycol lipid.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 30, 2022
    Applicant: Industrial Technology Research Institute
    Inventors: Neng-Chang YU, Felice CHENG, Chih-Peng LIU, Ming-Hsi WU, Shih-Ta CHEN, Chia-Mu TU, Li-Wen CHANG, Jheng-Sian LI, Meng-Ping SHE, Hsiang-Ching WANG
  • Publication number: 20220202610
    Abstract: A contact lens with sustained-release property is provided. The contact lens includes a polymer, pseudorotaxane embedded in the polymer, and a stabilizer embedded in the pseudorotaxane. The polymer is polymerized by monomer materials. The monomer materials include ethyl methacrylate, ethylene glycol dimethacrylate, methacrylic acid, 2-hydroxyethyl methacrylate, or a combination thereof. The stabilizer includes surfactant, amino acid with a polar side chain, oligopeptide containing at least one amino acid with a polar side chain, purine or its derivative, or a combination thereof.
    Type: Application
    Filed: December 31, 2020
    Publication date: June 30, 2022
    Applicant: Industrial Technology Research Institute
    Inventors: Felice CHENG, Wen-Chia HUANG, Shao-Chan YIN, Po-Hsien KUO, Li-Wen CHANG, Yen-Jen WANG
  • Publication number: 20220039288
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Application
    Filed: October 12, 2021
    Publication date: February 3, 2022
    Inventors: TZE-CHERN MAO, YEN-CHUN FU, CHIH-HUNG CHANG, YAO-TING CHANG, LI-WEN CHANG, CHAO-KE WEI
  • Publication number: 20210360829
    Abstract: A containerized data system, including a container body, a first cabinet array, a second cabinet array and a plurality of first air-conditioning devices. The first cabinet array and the second cabinet array are positioned in the container body and spaced apart from each other. Air intake areas of the first cabinet array and the second cabinet array communicates with a cold aisle connection space of the container body. Heat dissipation areas of the first cabinet array and the second cabinet array communicates with a hot aisle connection space of the container body. Air inlets of the first air-conditioning devices are communicated with the hot aisle connection space to collect the hot air flow in the container body, and air outlets of the plurality of first air-conditioning devices are communicated with the cold aisle connection space to convey the cold air flow to the container body.
    Type: Application
    Filed: August 11, 2020
    Publication date: November 18, 2021
    Inventors: CHAO-KE WEI, TZE-CHERN MAO, YAO-TING CHANG, YEN-CHUN FU, CHING-TANG LIU, CHIH-HUNG CHANG, LI-WEN CHANG
  • Patent number: 11169582
    Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: November 9, 2021
    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
  • Patent number: 11169387
    Abstract: An optical assembly includes a beam path, passing, in succession, through multiple microlens arrays and a Fourier lens assembly. The microlens arrays have a uniform aperture of their microlenses, and the entirety of the microlens arrays has an effective focal length. The optical assembly further includes an adjustment mechanism, configured to adjust a mutual optical distance of at least some of the microlens arrays in the beam path, thereby setting the effective focal length of the entirety of the microlens arrays. The adjustment mechanism has multiple adjustment positions i=1, . . . , M wherein M is a natural number ?2, i is an adjustment position index, at which the term a 2 ? · f ML , i in each case essentially smoothly results in a natural number Ni. ? is a center wavelength, fML,i is an effective focal length fML of the entirety of the microlens arrays set by the adjustment position i.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: November 9, 2021
    Assignee: TRUMPF LASER GMBH
    Inventors: Christoph Tillkorn, Daniel Flamm, Julian Hellstern, Andreas Heimes, Li-Wen Chang, Maike Prossotowicz
  • Publication number: 20210329817
    Abstract: A heat exchange system includes a heat-absorbing substance such as Liquid Natural Gas (LNG), a heat dissipation apparatus, a water storage tank, a heat exchanger, and a heat exchanger. The heat exchanger is coupled between the LNG and the water storage tank. The heat exchanger is coupled between the heat dissipation apparatus and the water storage tank.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: TZE-CHERN MAO, YEN-CHUN FU, CHIH-HUNG CHANG, CHAO-KE WEI, LI-WEN CHANG, CHING-TANG LIU, HUNG-CHOU CHAN
  • Patent number: 11107696
    Abstract: Examples described herein provide for methods for semiconductor processing for forming source/drain regions of transistors. An example is a method for semiconductor processing. An etch stop liner is formed in a semiconductor substrate. Forming the etch stop liner includes implanting etch selectivity dopants into the semiconductor substrate. The etch selectivity dopants form at least part of the etch stop liner. A source/drain cavity is formed in the semiconductor substrate. Forming the source/drain cavity includes etching the etch stop liner. Etching the etch stop liner selectively etches the etch stop liner relative to a material of the semiconductor substrate. A source/drain region is epitaxially grown in the source/drain cavity.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 31, 2021
    Assignee: XILINX, INC.
    Inventors: Li-Wen Chang, Ping-Chin Yeh