Patents by Inventor Testu KOHYAMA

Testu KOHYAMA 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).

  • Coated porous polymeric membranes
    Patent number: 11731085
    Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross-linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: August 22, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: Jad Ali Jaber, Saksatha Ly, James Hamzik, Testu Kohyama
  • COATED POROUS POLYMERIC MEMBRANES
    Publication number: 20220134287
    Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross-linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 5, 2022
    Inventors: Jad Ali JABER, Saksatha LY, James HAMZIK, Testu KOHYAMA
  • Coated porous polymeric membranes
    Patent number: 11285443
    Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross-linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: March 29, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Jad Ali Jaber, Saksatha Ly, James Hamzik, Testu Kohyama
  • COATED POROUS POLYMERIC MEMBRANES
    Publication number: 20200206691
    Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross -linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.
    Type: Application
    Filed: May 26, 2017
    Publication date: July 2, 2020
    Inventors: Jad Ali JABER, Saksatha LY, James HAMZIK, Testu KOHYAMA