Patents by Inventor CHIEN-HAO MA

CHIEN-HAO MA 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: 20240102860
    Abstract: An apparatus includes a six-axis correction stage, an auto-collimation measurement device, a light splitter, a telecentric image measurement device, and a controller. The six-axis correction stage carries a device under test; the auto-collimation measurement device is arranged above the six-axis correction stage along a measurement optical axis; the light splitter is arranged on the measurement optical axis and is interposed between the six-axis correction stage and the auto-collimation measurement device. A method controls the six-axis correction stage to correct rotation errors in at least two degrees of freedom of the device under test according to a measurement result of the auto-collimation measurement device, and controls the six-axis correction stage to correct translation and yaw errors in at least three degrees of freedom of the device under test according to a measurement result of the telecentric image measurement device by means of the controller.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 28, 2024
    Inventors: Cheng Chih HSIEH, Tien Chi WU, Ming-Long LEE, Yu-Hsuan LIN, Tsung-I LIN, Chien-Hao MA
  • Patent number: 11942610
    Abstract: The present invention relates to a pitch-variable battery fixture and a battery cell formation apparatus having the same. A pitch of clamping plates of a plurality of clamping blocks is increased by a slide actuator of the pitch-variable battery fixture, and then the clamping plates are inserted into a plurality of compartments of a battery tray. The clamping plates are urged to clamp batteries by the slide actuator. The battery tray is provided for placement of the batteries, and a compressing force is exerted for shaping the batteries during a battery cell formation. The pitch-variable battery fixture is provided for clamping batteries having different thicknesses. According to the actual thickness of each battery, the thickness of the formed battery can be shaped.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: March 26, 2024
    Assignee: CHROMA ATE INC.
    Inventors: Chih Hsien Chiu, Jui Hung Weng, Chien-Hao Ma, Cheng Chih Hsieh
  • Publication number: 20220166076
    Abstract: The present invention relates to a pitch-variable battery fixture and a battery cell formation apparatus having the same. A pitch of clamping plates of a plurality of clamping blocks is increased by a slide actuator of the pitch-variable battery fixture, and then the clamping plates are inserted into a plurality of compartments of a battery tray. The clamping plates are urged to clamp batteries by the slide actuator. The battery tray is provided for placement of the batteries, and a compressing force is exerted for shaping the batteries during a battery cell formation. The pitch-variable battery fixture is provided for clamping batteries having different thicknesses. According to the actual thickness of each battery, the thickness of the formed battery can be shaped.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 26, 2022
    Inventors: CHIH HSIEN CHIU, JUI HUNG WENG, CHIEN-HAO MA, CHENG CHIH HSIEH