Patents by Inventor Chih-Chuan Sun

Chih-Chuan Sun 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).

  • Method, system, and non-transitory computer-readable medium for flattening three-dimensional shoe upper template
    Patent number: 11972537
    Abstract: A method for flattening a three-dimensional shoe upper template is provided. The method includes providing a three-dimensional last model, obtaining a three-dimensional grid model, obtaining a three-dimensional thickened grid model, obtaining a two-dimensional initial-value grid model, and obtaining a two-dimensional grid model with the smallest energy value. A system and a non-transitory computer-readable medium for performing the method are also provided. The method makes it possible to precisely flatten a three-dimensional last model with a non-developable surface and thereby convert the three-dimensional last model into a two-dimensional grid model.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: April 30, 2024
    Assignee: YU JUNG CHANG TECHNOLOGY CO., LTD.
    Inventors: Chih-Chuan Chen, Wei-Hsiang Tsai, Chin-Yu Chen, Ching-Cherng Sun, Jann-Long Chern, Yu-Kai Lin
  • Portable electronic book
    Patent number: D449606
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: October 23, 2001
    Assignee: Future Display Systems, Inc.
    Inventors: Chuan-Jung Lee, Yuan-Huan Tsai, Chih-Chuan Sun, Ming-Hsien Wang
  • Desktop electronic book
    Patent number: D454870
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: March 26, 2002
    Assignee: Future Display Systems, Inc.
    Inventors: Chuan-Jung Lee, Yuan-Huan Tsai, Chih-Chuan Sun, Ming-Hsien Wang