Patents by Inventor Yu-Pao Huang

Yu-Pao Huang 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).

  • Composition for Preparing Polyamide Powders
    Publication number: 20210061961
    Abstract: A composition for preparing polyamide powders, includes polyamide granules, a nucleating agent and an organic solvent having a boiling point ranging from 190° C. to 209° C. The weight ratio of the polyamide granules to the organic solvent ranges from 0.11 to saturation solubility of the polyamide granules is the organic solvent, and the weight ratio of the polyamide granules to the nucleating agent is 100:1.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Applicant: Taiwan Green Point Enterprises Co., Ltd.
    Inventors: Chia-Hung Yang, Yu-Pao Huang, Hsing-Fu Yeh, Yao-Tang Ke, Feng-Lin Chen, Yung-Chih Chen, Yi-Chung Su
  • Method and composition for preparing polyamide powders
    Patent number: 10889694
    Abstract: A method of preparing polyamide (PA) powders includes the steps of: heating a composition including PA granules, a nucleating agent and an organic solvent under normal pressure to T1 not lower than melting point (Tm) of PA granules and maintaining at T1 to dissolve PA granules; cooling the heated composition to T2 to nucleate the dissolved PA granules and maintaining at T2 to crystallize, where 15° C.?Tm?T2?33° C.; cooling the crystallization product to precipitate PA; and washing the precipitated product to remove the organic solvent. The weight ratio of PA granules to the nucleating agent is 100:1, and the weight ratio of PA granules to the organic solvent ranges from 0.11 to saturation solubility of PA granules in the organic solvent.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: January 12, 2021
    Assignee: Taiwan Green Point Enterprises Co., Ltd.
    Inventors: Chia-Hung Yang, Yu-Pao Huang, Hsing-Fu Yeh, Yao-Tang Ke, Feng-Lin Chen, Yung-Chih Chen, Yi-Chung Su
  • Method and Composition for Preparing Polyamide Powders
    Publication number: 20200010626
    Abstract: A method of preparing polyamide (PA) powders includes the steps of: heating a composition including PA granules, a nucleating agent and an organic solvent under normal pressure to T1 not lower than melting point (Tm) of PA granules and maintaining at T1 to dissolve PA granules; cooling the heated composition to T2 to nucleate the dissolved PA granules and maintaining at T2 to crystallize, where 15° C.?Tm?T2?33° C.; cooling the crystallization product to precipitate PA; and washing the precipitated product to remove the organic solvent. The weight ratio of PA granules to the nucleating agent is 100:1, and the weight ratio of PA granules to the organic solvent ranges from 0.11 to saturation solubility of PA granules in the organic solvent.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 9, 2020
    Applicant: Taiwan Green Point Enterprises Co., Ltd.
    Inventors: Chia-Hung Yang, Yu-Pao Huang, Hsing-Fu Yeh, Yao-Tang Ke, Feng-Lin Chen, Yung-Chih Chen, Yi-Chung Su
  • Method for avoiding data loss in a PDA
    Publication number: 20040205366
    Abstract: A method for avoiding data loss in a PDA. The PDA has a RAM, a battery, a central processing unit (CPU), and a nonvolatile accessible memory. The nonvolatile accessible memory has a predetermined region, and the RAM stores user information including global operating system settings. User information is backed up into the predetermined region when remaining power of the battery is lower than a default value. Further, user information from the predetermined region is restored to the RAM when system power is recovered.
    Type: Application
    Filed: March 30, 2004
    Publication date: October 14, 2004
    Inventors: Hung-Chang Hung, Yu-Pao Huang, Liang-Hsin Chien, Chien-Wen Chen, Ming-Chih Hsieh, Chi-Chung Yu