Patents by Inventor Hajime Okafuji

Hajime Okafuji 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).

  • Polysulfone hemodialyzer
    Patent number: 8828225
    Abstract: An object of the present invention is to provide a polysulfone hemodialyzer with large membrane area that exhibits an unprecedented high dialytic performance over a wide molecular weight range from urea to ?2-microglobulin. There is provided a polysulfone hemodialyzer having a membrane area of >2.4 but ?3.2 m2 and a dialysate rectifying portion with specified broadening at end portion of bundle, the polysulfone hemodialyzer achieves the above object.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: September 9, 2014
    Assignee: Asahi Kasei Medical Co., Ltd.
    Inventors: Hajime Okafuji, Satoshi Uezumi, Makoto Fukuda, Miwa Kawano, Maho Torii, Masaichi Yamada
  • Polysulfone Hemodialyzer
    Publication number: 20080237127
    Abstract: An object of the present invention is to provide a polysulfone hemodialyzer with large membrane area that exhibits an unprecedented high dialytic performance over a wide molecular weight range from urea to ?2-microglobulin. There is provided a polysulfone hemodialyzer having a membrane area of >2.4 but ?3.2 m2 and a dialysate rectifying portion with specified broadening at end portion of bundle, the polysulfone hemodialyzer achieves the above object.
    Type: Application
    Filed: July 22, 2005
    Publication date: October 2, 2008
    Applicant: ASAHI KASEI MEDICAL CO. LTD.
    Inventors: Hajime Okafuji, Satoshi Uezumi, Makoto Fukuda, Miwa Kawano, Maho Torii, Masaichi Yamada