Patents by Inventor RU-JIE HUANG

RU-JIE 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).

  • POWDER INJECTION MOLDING FEEDSTOCK
    Publication number: 20190366430
    Abstract: A powder injection molding feedstock includes powder particles, a main binder, and a secondary binder. A glass-transition temperature of the secondary binder is greater than a glass-transition temperature of the main binder, the secondary binder coats the powder particles, and the main binder coats the secondary binder and the powder particles.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: DUNG-CHANG YEH, LEI YAN, RU-JIE HUANG
  • Powder injection molding feedstock and method for manufacturing the same
    Patent number: 10434571
    Abstract: A method for manufacturing a powder injection molding feedstock includes providing a plurality of powder particles and a secondary binder and applying primary kneading in an internal mixer. The primary mixture is cooled and crushed. A main binder is provided and put into the internal mixer to mix with the mixture that being crushed for secondary kneading to obtain the powder injection molding feedstock. Glass-transition temperature of the secondary binder is greater than glass-transition temperature of the main binder. The secondary binder coats the powder particles. The main binder coats the secondary binder and the powder particles.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 8, 2019
    Assignee: CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventors: Dung-Chang Yeh, Lei Yan, Ru-Jie Huang
  • POWDER INJECTION MOLDING FEEDSTOCK AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20190039132
    Abstract: A method for manufacturing a powder injection molding feedstock includes providing a plurality of powder particles and a secondary binder and applying primary kneading in an internal mixer. The primary mixture is cooled and crushed. A main binder is provided and put into the internal mixer to mix with the mixture that being crushed for secondary kneading to obtain the powder injection molding feedstock. Glass-transition temperature of the secondary binder is greater than glass-transition temperature of the main binder. The secondary binder coats the powder particles. The main binder coats the secondary binder and the powder particles.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 7, 2019
    Inventors: DUNG-CHANG YEH, LEI YAN, RU-JIE HUANG