Patents by Inventor CHIEN-YUAN TSAI

CHIEN-YUAN TSAI 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: 11998894
    Abstract: A composite solid base catalyst, a manufacturing method thereof and a manufacturing method of glycidol are provided. The composite solid base catalyst includes an aluminum carrier and a plurality of calcium particles. The plurality of calcium particles are supported by the aluminum carrier. Beta basic sites of the composite solid base catalyst are 0.58 mmol/g-3.89 mmol/g.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: June 4, 2024
    Assignees: NATIONAL TSING HUA UNIVERSITY, Chang Chun Plastics Co., Ltd., Chang Chun Petrochemical Co., LTD., DAIREN CHEMICAL CORP.
    Inventors: De-Hao Tsai, Yung-Tin Pan, Che-Ming Yang, Ching-Yuan Chang, Ding-Huei Tsai, Chien-Fu Huang, Yi-Ta Tsai
  • Patent number: 11990381
    Abstract: In an embodiment, a device includes: a package component including: integrated circuit dies; an encapsulant around the integrated circuit dies; a redistribution structure over the encapsulant and the integrated circuit dies, the redistribution structure being electrically coupled to the integrated circuit dies; sockets over the redistribution structure, the sockets being electrically coupled to the redistribution structure; and a support ring over the redistribution structure and surrounding the sockets, the support ring being disposed along outermost edges of the redistribution structure, the support ring at least partially laterally overlapping the redistribution structure.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: May 21, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Shu-Rong Chun, Kuo Lung Pan, Tin-Hao Kuo, Hao-Yi Tsai, Pei-Hsuan Lee, Chien Ling Hwang, Yu-Chia Lai, Po-Yuan Teng, Chen-Hua Yu
  • Patent number: 11970241
    Abstract: A brake handle structure for a bicycle contains: at least one body, at least one rotatory arm, at least one brake lever, at least one angle signal sensor, and at least one power failure sensor. The at least one body includes a connection portion, an extension, and an engagement portion. The at least one rotatory arm includes a pulling segment, a coupling orifice, and a receiving orifice. The at least one brake lever includes a fixing segment connected with at least one electromagnetic clutch which includes a bolt attracted electromagnetically by the at least one electromagnetic clutch after conducting a power, and a defining orifice is defined adjacent to the at least one electromagnetic clutch. The at least one angle signal sensor is configured to sense and send a rotating angle of the rotatable column. The at least one power failure sensor has a movable sensing head.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: April 30, 2024
    Assignee: Joy Industrial (Shenzhen) Co., Ltd.
    Inventor: Chien-Yuan Tsai
  • Patent number: 11929547
    Abstract: A mobile device includes a system circuit board, a metal frame, one or more other antenna elements, a display device, a first feeding element, and an RF (Radio Frequency) module. The system circuit board includes a system ground plane. The metal frame at least includes a first portion and a second portion. The metal frame at least has a first cut point positioned between the first portion and the second portion. The metal frame further has a second cut point for separating the other antenna elements from the first portion. The first cut point is arranged to be close to a middle region of the display device. The first feeding element is directly or indirectly electrically connected to the first portion. A first antenna structure is formed by the first feeding element and the first portion.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: March 12, 2024
    Assignee: HTC Corporation
    Inventors: Tiao-Hsing Tsai, Chien-Pin Chiu, Hsiao-Wei Wu, Li-Yuan Fang, Shen-Fu Tzeng, Yi-Hsiang Kung
  • Patent number: 11673538
    Abstract: A method of operating an anti-lock braking system (ABS) of a bicycle comprising steps of: judging whether a power of a battery meets a set value; judging a moved angular position of a brake lever; outputting electric currents to operate the ABS; and judging whether a running speed of the bicycle is zero. When the power meets the set value, the ABS is turned on, and when the power of the battery is low, the ABS is not turned on. After the brake lever is pressed, the control unit judges whether the moved angular position of the brake lever reaches a set position. When the moved angular position does not reach the set position, the ABS is not turned on. When the moved angular angle reaches the set position, the ABS is turned on. The control unit outputs the electric currents to turn on the ABS, thus braking the bicycle.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: June 13, 2023
    Assignee: Joy Industrial (Shenzhen) Co., Ltd.
    Inventor: Chien-Yuan Tsai
  • Publication number: 20230109531
    Abstract: A hub structure having an anti-lock braking system contains: a hub assembly and an anti-locking assembly. The hub assembly is located on a center of a wheel and includes a holder and a connection shaft. The anti-locking assembly is received in the holder and is fitted on the connection shaft, and the anti-locking assembly includes an anti-lock seat received in the holder and fitted on the connection shaft to rotate with the holder simultaneously, multiple eddy current elements arranged on two sides of the anti-lock seat and two ends of the connection shaft. A predetermined distance is defined between any two adjacent eddy current elements, and a respective eddy current element has at least one electromagnetic induction portion, when two corresponding electromagnetic induction portions are electrically conducted, a current magnetic field produces so that the anti-lock seat produces reverse currents to stop rotation.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 6, 2023
    Inventor: CHIEN-YUAN TSAI
  • Publication number: 20230105137
    Abstract: A method of operating an anti-lock braking system (ABS) of a bicycle comprising steps of: judging whether a power of a battery meets a set value; judging a moved angular position of a brake lever; outputting electric currents to operate the ABS; and judging whether a running speed of the bicycle is zero. When the power meets the set value, the ABS is turned on, and when the power of the battery is low, the ABS is not turned on. After the brake lever is pressed, the control unit judges whether the moved angular position of the brake lever reaches a set position. When the moved angular position does not reach the set position, the ABS is not turned on. When the moved angular angle reaches the set position, the ABS is turned on. The control unit outputs the electric currents to turn on the ABS, thus braking the bicycle.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 6, 2023
    Inventor: CHIEN-YUAN TSAI
  • Publication number: 20230103940
    Abstract: A brake handle structure for a bicycle contains: at least one body, at least one rotatory arm, at least one brake lever, at least one angle signal sensor, and at least one power failure sensor. The at least one body includes a connection portion, an extension, and an engagement portion. The at least one rotatory arm includes a pulling segment, a coupling orifice, and a receiving orifice. The at least one brake lever includes a fixing segment connected with at least one electromagnetic clutch which includes a bolt attracted electromagnetically by the at least one electromagnetic clutch after conducting a power, and a defining orifice is defined adjacent to the at least one electromagnetic clutch. The at least one angle signal sensor is configured to sense and send a rotating angle of the rotatable column. The at least one power failure sensor has a movable sensing head.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 6, 2023
    Inventor: CHIEN-YUAN TSAI