Patents by Inventor Makiko HIRAOKA

Makiko HIRAOKA 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).

  • Hollow-fiber membrane and hollow-fiber module for cell culture
    Patent number: 10898863
    Abstract: An object of the present invention is to provide a hollow-fiber membrane which does not require a coating treatment with a cell adhesion factor or surface modification by an electron beam or the like and which is capable of adhering and culturing cells, and a method for culturing cells using the hollow-fiber membrane. A hollow-fiber membrane for cell culture which is to be used as a culture substrate for adhesive cells, in which the hollow-fiber membrane includes a hydrophobic polymer and a hydrophilic polymer, the content of the hydrophilic polymer in the whole hollow-fiber membrane is more than 0% by mass and less than 1% by mass, and the content of the hydrophilic polymer on a surface of the hollow-fiber membrane is more than 0% by mass and less than 10% by mass.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 26, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Makiko Hiraoka, Tatsuya Yamaguchi, Noriaki Kato
  • HOLLOW-FIBER MEMBRANE AND HOLLOW-FIBER MODULE FOR CELL CULTURE
    Publication number: 20180361325
    Abstract: An object of the present invention is to provide a hollow-fiber membrane which does not require a coating treatment with a cell adhesion factor or surface modification by an electron beam or the like and which is capable of adhering and culturing cells, and a method for culturing cells using the hollow-fiber membrane. A hollow-fiber membrane for cell culture which is to be used as a culture substrate for adhesive cells, in which the hollow-fiber membrane includes a hydrophobic polymer and a hydrophilic polymer, the content of the hydrophilic polymer in the whole hollow-fiber membrane is more than 0% by mass and less than 1% by mass, and the content of the hydrophilic polymer on a surface of the hollow-fiber membrane is more than 0% by mass and less than 10% by mass.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 20, 2018
    Applicant: TOYOBO CO., LTD.
    Inventors: Makiko HIRAOKA, Tatsuya YAMAGUCHI, Noriaki KATO