Patents by Inventor Chi-Kai CHENG

Chi-Kai CHENG 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: 11964881
    Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: April 23, 2024
    Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Pu-Wei Wu, Yi-Chieh Hsieh, Han-Yi Wang, Kuang-Chih Tso, Tzu-Ying Chan, Chung-Kai Chang, Chi-Shih Chen, Yu-Ting Cheng
  • Publication number: 20240081055
    Abstract: A semiconductor structure includes a substrate. The substrate is divided into a first element region, a second element region and a boundary region. The boundary region is disposed between the first element region and a second element region. A first mask structure covers the first element region. A second mask structure is disposed in the second element region. A logic gate structure is disposed within the second element region.
    Type: Application
    Filed: September 27, 2022
    Publication date: March 7, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Hsuan-Kai Wang, Chao-Sheng Cheng, Chi-Cheng Huang
  • Patent number: 11333303
    Abstract: A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally a granular elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 17, 2022
    Assignee: ASIA PACIFIC FUEL CELL TECHNOLOGIES, LTD.
    Inventors: Jefferson Y S Yang, Chi-Kai Cheng, Wu-Yao Wei
  • Patent number: 10024498
    Abstract: A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally an elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is activated and charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 17, 2018
    Assignee: ASIA PACIFIC FUEL CELL TECHNOLOGIES, LTD.
    Inventors: Jefferson Y S Yang, Chi-Kai Cheng, Wu-Yao Wei
  • Publication number: 20180119886
    Abstract: A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally a granular elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is activated and charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Inventors: Jefferson YS Yang, Chi-Kai Cheng, Wu-Yao Wei
  • Publication number: 20170114959
    Abstract: A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally an elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is activated and charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 27, 2017
    Inventors: Jefferson YS Yang, Chi-Kai Cheng, Wu-Yao Wei
  • Patent number: 8953346
    Abstract: A converting circuit for receiving an input voltage and generating an output current, including: a transistor, coupled to a supply voltage at a drain of the transistor, and a source of the transistor is coupled to a first voltage, and a gate of the transistor is coupled to the input voltage and a fixed voltage; and a resistor, coupled to the input voltage and the gate of the transistor, and the output current flows through the resistor, wherein the output current is related to the fixed voltage, the input voltage and the resistor.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: February 10, 2015
    Assignee: Via Telecom Co., Ltd.
    Inventor: Chi-Kai Cheng
  • Publication number: 20130027017
    Abstract: A converting circuit for receiving an input voltage and generating an output current, including: a transistor, coupled to a supply voltage at a drain of the transistor, and a source of the transistor is coupled to a first voltage, and a gate of the transistor is coupled to the input voltage and a fixed voltage; and a resistor, coupled to the input voltage and the gate of the transistor, and the output current flows through the resistor, wherein the output current is related to the fixed voltage, the input voltage and the resistor.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: VIA TELECOM, INC.
    Inventor: Chi-Kai CHENG