Patents by Inventor Kazuhiko Namigata

Kazuhiko Namigata 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).

  • Fiber-reinforced porous hollow fiber membrane
    Patent number: 10434477
    Abstract: A fiber-reinforced porous hollow fiber membrane comprising a hollow fiber membrane and a reinforcing fiber completely or partially embedded in the hollow fiber membrane; wherein the reinforcing fiber is placed in a portion that does not exceed 90%, preferably 80%, of the thickness of the hollow fiber membrane as viewed from an inner or outer peripheral surface of the hollow fiber membrane on a side that is not a side of the porous hollow fiber membrane to come in contact with an object to be treated, and preferably at least 50 volume % of the cross section of the reinforcing fiber is embedded in the hollow fiber membrane. The obtained fiber-reinforced porous hollow fiber membrane has excellent permeability, separation performance, and mechanical properties.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: October 8, 2019
    Assignee: NOK Corporation
    Inventors: Takatoshi Sato, Kazuhiko Namigata, Masataka Kondo
  • FIBER-REINFORCED POROUS HOLLOW FIBER MEMBRANE
    Publication number: 20160082396
    Abstract: A fiber-reinforced porous hollow fiber membrane comprising a hollow fiber membrane and a reinforcing fiber completely or partially embedded in the hollow fiber membrane; wherein the reinforcing fiber is placed in a portion that does not exceed 90%, preferably 80%, of the thickness of the hollow fiber membrane as viewed from an inner or outer peripheral surface of the hollow fiber membrane on a side that is not a side of the porous hollow fiber membrane to come in contact with an object to be treated, and preferably at least 50 volume % of the cross section of the reinforcing fiber is embedded in the hollow fiber membrane. The obtained fiber-reinforced porous hollow fiber membrane has excellent permeability, separation performance, and mechanical properties.
    Type: Application
    Filed: April 22, 2014
    Publication date: March 24, 2016
    Inventors: Takatoshi Sato, Kazuhiko Namigata, Masataka Kondo