Patents by Inventor Ryoko HORI

Ryoko HORI 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).

  • Patent number: 10232320
    Abstract: The present invention provides a hollow-fiber membrane blood purification device obtained by filling a container with a hollow-fiber membrane, in which the hollow-fiber membrane contains a hydrophobic polymer, a hydrophilic polymer and a lipid-soluble substance; the amount of the lipid-soluble substance on the inner surface of the hollow-fiber membrane is 10 mg/m2 or more and 300 mg/m2 or less; and the oxygen transmission rate of the container is 1.8×10?10 cm3·cm/(cm2·s·cmHg) or less.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 19, 2019
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Yosuke Hata, Chiharu Kawano, Ryoko Hori
  • Patent number: 10029216
    Abstract: Disclosed is a hollow-fiber membrane blood purification device having an improved antioxidant performance, good water permeation performance and blood compatibility performance, and economic rationality. The present invention provides a hollow-fiber membrane blood purification device including hollow-fiber membranes filled in a vessel, in which the hollow-fiber membranes contain a hydrophobic polymer, a hydrophilic polymer and a fat-soluble vitamin, when a hollow-fiber membrane bundle is divided into five sections in a lengthwise direction and divided sections positioned in endmost portions are defined as body end portions, an amount of the fat-soluble vitamin present in at least one of the body end portions is the largest among amounts of the fat-soluble vitamin present respectively in all the divided sections, and an amount of the fat-soluble vitamin per m2 of a hollow-fiber membrane inner surface of the at least one body end portion is 20 mg/m2 or more and 300 mg/m2 or less.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 24, 2018
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryoko Hori, Yosuke Hata, Junya Kawakami
  • Publication number: 20170209836
    Abstract: The present invention provides a hollow-fiber membrane blood purification device obtained by filling a container with a hollow-fiber membrane, in which the hollow-fiber membrane contains a hydrophobic polymer, a hydrophilic polymer and a lipid-soluble substance; the amount of the lipid-soluble substance on the inner surface of the hollow-fiber membrane is 10 mg/m2 or more and 300 mg/m2 or less; and the oxygen transmission rate of the container is 1.8×10?10 cm3·cm/(cm2·s·cmHg) or less.
    Type: Application
    Filed: September 29, 2015
    Publication date: July 27, 2017
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Yosuke HATA, Chiharu KAWANO, Ryoko HORI
  • Publication number: 20160354728
    Abstract: Disclosed is a hollow-fiber membrane blood purification device having an improved antioxidant performance, good water permeation performance and blood compatibility performance, and economic rationality. The present invention provides a hollow-fiber membrane blood purification device including hollow-fiber membranes filled in a vessel, in which the hollow-fiber membranes contain a hydrophobic polymer, a hydrophilic polymer and a fat-soluble vitamin, when a hollow-fiber membrane bundle is divided into five sections in a lengthwise direction and divided sections positioned in endmost portions are defined as body end portions, an amount of the fat-soluble vitamin present in at least one of the body end portions is the largest among amounts of the fat-soluble vitamin present respectively in all the divided sections, and an amount of the fat-soluble vitamin per m2 of a hollow-fiber membrane inner surface of the at least one body end portion is 20 mg/m2 or more and 300 mg/m2 or less.
    Type: Application
    Filed: December 16, 2014
    Publication date: December 8, 2016
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Ryoko HORI, Yosuke HATA, Junya KAWAKAMI