Patents by Inventor Meilun Li

Meilun 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).

  • Electromagnetic stylus, processing device, and processing method
    Patent number: 11693494
    Abstract: The utility model provides an electromagnetic stylus having a tip, a first magnetic core, a second magnetic core and a cartridge. The tip includes a nib arranged at an end portion thereof. The first magnetic core has a first through hole. The second magnetic core is arranged on a distal end of the first magnetic core from the nib, having a second through hole. An inner diameter of the second through hole is less than an inner diameter of the first through hole, the tip sequentially penetrates through the first through hole and the second through hole. A step structure is arranged on a proximal end of the second magnetic core to the nib. A spacer is arranged on an inner wall of the cartridge, the first magnetic core and the second magnetic core are at least partially received in the cartridge and respectively positioned on two sides of the spacer, the step structure abuts against the spacer, a thickness of the step structure is less than a thickness of the spacer along a lengthwise direction of the tip.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 4, 2023
    Assignee: SHENZHEN HUION ANIMATION TECHNOLOGY CO., LTD.
    Inventors: Meilun Li, Yuanhua Liao
  • ELECTROMAGNETIC STYLUS, PROCESSING DEVICE, AND PROCESSING METHOD
    Publication number: 20220066578
    Abstract: The utility model provides an electromagnetic stylus having a tip, a first magnetic core, a second magnetic core and a cartridge. The tip includes a nib arranged at an end portion thereof. The first magnetic core has a first through hole. The second magnetic core is arranged on a distal end of the first magnetic core from the nib, having a second through hole. An inner diameter of the second through hole is less than an inner diameter of the first through hole, the tip sequentially penetrates through the first through hole and the second through hole. A step structure is arranged on a proximal end of the second magnetic core to the nib. A spacer is arranged on an inner wall of the cartridge, the first magnetic core and the second magnetic core are at least partially received in the cartridge and respectively positioned on two sides of the spacer, the step structure abuts against the spacer, a thickness of the step structure is less than a thickness of the spacer along a lengthwise direction of the tip.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Inventors: Meilun Li, Yuanhua Liao