Patents by Inventor Junpin Yao

Junpin Yao 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).

  • Reduction of SiCl4 in the presence of BCl3
    Patent number: 10010853
    Abstract: The present invention relates, in general, to the purification of boron trichloride (BCl3). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl4) formation in BCl3 production and/or the removal of SiCl4 in BCl3 product stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiCl4 present to SiH4 which is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiCl4 from BCl3 that has been partially purified to remove light boilers.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 3, 2018
    Assignee: Matheson Tri-Gas, Inc.
    Inventors: Mark W. Raynor, Daniel J. Tempel, Junpin Yao, Larry Wagg, Adam Seymour
  • USE OF REACTIVE FLUIDS IN ADDITIVE MANUFACTURING AND THE PRODUCTS MADE THEREFROM
    Publication number: 20170182558
    Abstract: The present invention generally relates to methods and apparatuses adapted to perform additive manufacturing (AM) processes and the resulting products made therefrom, and specifically, to AM processes that employ an energy beam to selectively fuse a base material to produce an object. More particularly, the invention relates to methods and systems that use reactive fluids to actively manipulate the surface chemistry of the base material prior to, during and/or after the AM process.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 29, 2017
    Applicant: Matheson Tri-Gas, Inc.
    Inventors: Hideharu Shimizu, Mark W. Raynor, Daniel Tempel, Junpin Yao, Larry Wagg, Robert Torres, JR.
  • Reduction of SiCl4 in the presence of BCl3
    Patent number: 9669378
    Abstract: The present invention relates, in general, to the purification of boron trichloride (BCl3). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl4) formation in BCl3 production and/or the removal of SiCl4 in BCl3 product stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiCl4 present to SiH4 which is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiCl4 from BCl3 that has been partially purified to remove light boilers.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: June 6, 2017
    Assignee: Matheson Tri-Gas, Inc.
    Inventors: Mark W. Raynor, Daniel J. Tempel, Junpin Yao, Larry Wagg, Adam Seymour
  • REDUCTION OF SiCl4 IN THE PRESENCE OF BCl3
    Publication number: 20150265996
    Abstract: The present invention relates, in general, to the purification of boron trichloride (BCl3). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl4) formation in BCl3 production and/or the removal of SiCl4 in BCl3 product stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiCl4 present to SiH4 which is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiCl4 from BCl3 that has been partially purified to remove light boilers.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Mark W. Raynor, Daniel J. Tempel, Junpin Yao, Larry Wagg, Adam Seymour
  • REDUCTION OF SiCl4 IN THE PRESENCE OF BCl3
    Publication number: 20150266744
    Abstract: The present invention relates, in general, to the purification of boron trichloride (BCl3). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl4) formation in BCl3 production and/or the removal of SiCl4 in BCl3 product stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiCl4 present to SiH4 which is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiCl4 from BCl3 that has been partially purified to remove light boilers.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Mark W. Raynor, Daniel J. Tempel, Junpin Yao, Larry Wagg, Adam Seymour