Patents by Inventor Kuo-Hao Li

Kuo-Hao Li 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: 20220114959
    Abstract: The present application relates to a driving circuit for display panel, which drives a plurality of pixel structures of a display panel. Each of pixel structures comprises a light emitting element, which is coupled between a first voltage and a second voltage. The driving circuit comprises a power supply circuit, which is coupled to the pixel structures, provides the first voltage and the second voltage, and adjusts the first voltage or/and the second voltage for adjusting a voltage difference between the first voltage and the second voltage. That is, a current flowing through the light emitting elements of the pixel structures may be adjusted for reducing the flicker in the display panel.
    Type: Application
    Filed: May 24, 2021
    Publication date: April 14, 2022
    Inventors: CHIA-CHIH CHUNG, HUAI-YI HSU, SHU-TSENG CHEN, CHIH-HSUN WENG, I-HSIU YU, KUO-HAO LI
  • Patent number: 8613129
    Abstract: A working machine includes a base, at least one z-axis track mounted on the base, a secondary z-axis track mounted on the base, at least one z-axis saddle mounted on the z-axis track, a secondary z-axis saddle mounted on the secondary z-axis track, at least one x-axis track mounted on the z-axis saddle, at least one x-axis slide mounted on the x-axis track, at least one upright support mounted on the x-axis slide, and at least one y-axis track mounted on the upright support. Thus, the y-axis track is disposed at a vertical state so that the y-axis track is operated exactly and stably to facilitate operation of the working machine and to enhance the working precision and stability of the working machine.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: December 24, 2013
    Assignee: King Rich Industries Co., Ltd.
    Inventor: Kuo-Hao Li
  • Publication number: 20110225784
    Abstract: A working machine includes a base, at least one z-axis track mounted on the base, a secondary z-axis track mounted on the base, at least one z-axis saddle mounted on the z-axis track, a secondary z-axis saddle mounted on the secondary z-axis track, at least one x-axis track mounted on the z-axis saddle, at least one x-axis slide mounted on the x-axis track, at least one upright support mounted on the x-axis slide, and at least one y-axis track mounted on the upright support. Thus, the y-axis track is disposed at a vertical state so that the y-axis track is operated exactly and stably to facilitate operation of the working machine and to enhance the working precision and stability of the working machine.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 22, 2011
    Inventor: Kuo-Hao Li
  • Patent number: 6796206
    Abstract: A working machine has a platform, a hood disposed on the platform, two lateral plates disposed on the platform and connected to the hood, a hollow interior confined by the hood and the lateral plates, and a safety door connected to the lateral plates. Each lateral plate has a semicircular frame. The hood has two arc plates, and two arc frames each communicating with the corresponding semicircular frame. The safety door has two oblong windows, two handles, a plurality of rollers disposed on two sides of the safety door, and a plurality of rolling bearings disposed on two sides of the safety door. The rollers and the rolling bearings move along the corresponding arc plate and the corresponding semicircular frame.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: September 28, 2004
    Inventor: Kuo-Hao Li
  • Publication number: 20020129686
    Abstract: A working machine has a platform, a hood disposed on the platform, two lateral plates disposed on the platform and connected to the hood, a hollow interior confined by the hood and the lateral plates, and a safety door connected to the lateral plates. Each lateral plate has a semicircular frame. The hood has two arc plates, and two arc frames each communicating with the corresponding semicircular frame. The safety door has two oblong windows, two handles, a plurality of rollers disposed on two sides of the safety door, and a plurality of rolling bearings disposed on two sides of the safety door. The rollers and the rolling bearings move along the corresponding arc plate and the corresponding semicircular frame.
    Type: Application
    Filed: March 15, 2001
    Publication date: September 19, 2002
    Inventor: Kuo-Hao Li
  • Patent number: 6082513
    Abstract: A clutch device has a shaft rod, a hollow torsion sleeve, a trip device, an outer toothed gear, an inner toothed gear, and a first belt pulley. The outer toothed gear is disposed on the trip device. The hollow torsion sleeve has a plurality of grooves. The trip device has a center hole to receive the hollow torsion sleeve, and a plurality of radiated thread holes. The inner toothed gear is disposed on the first belt pulley. The outer toothed gear engages with the inner toothed gear. Each radiated thread hole receives a ball, a spring, and a stud. Each groove receives the respective ball. The shaft rod is inserted through the hollow torsion sleeve, the first belt pulley, and a second belt pulley.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 4, 2000
    Inventor: Kuo-Hao Li