Patents by Inventor Tetsuro UCHIMURA

Tetsuro UCHIMURA 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).

  • Leukocyte removal filter material and leukocyte removal method
    Patent number: 11213776
    Abstract: There is disclosed a leukocyte removal filter material comprising a nonwoven fabric having polybutylene terephthalate fiber. The average fiber diameter of the nonwoven fabric is 0.9 to 1.5 ?m, the formation index corresponding to a thickness of 0.3 mm of the nonwoven fabric is 15 to 70, and when the average fiber diameter of the nonwoven fabric is X and the specific surface area of the nonwoven fabric is Y, X and Y satisfy the following relational expression (1): Y??0.65×X+1.75??(1).
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 4, 2022
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Tetsuro Uchimura, Nobukazu Shimada
  • LEUKOCYTE REMOVAL FILTER MATERIAL AND LEUKOCYTE REMOVAL METHOD
    Publication number: 20160310883
    Abstract: There is disclosed a leukocyte removal filter material comprising a nonwoven fabric having polybutylene terephthalate fiber. The average fiber diameter of the nonwoven fabric is 0.9 to 1.5 ?m, the formation index corresponding to a thickness of 0.3 mm of the nonwoven fabric is 15 to 70, and when the average fiber diameter of the nonwoven fabric is X and the specific surface area of the nonwoven fabric is Y, X and Y satisfy the following relational expression (1): Y??0.65×X+1.75 ??(1).
    Type: Application
    Filed: December 12, 2014
    Publication date: October 27, 2016
    Applicant: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Tetsuro UCHIMURA, Nobukazu SHIMADA