Patents by Inventor Yoshihiro Eika

Yoshihiro Eika 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).

  • Hydrophilic substance and a production method thereof
    Patent number: 7470368
    Abstract: The present invention relates to a hydrophilic substance production method characterized in that polyvinylpyrrolidone-containing material wetted with an aqueous solution of a cationic polymer is treated with radiation. The invention makes it possible to produce material for blood treatment that prevents adsorption of blood platelets.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: December 30, 2008
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyuki Sugaya, Yoshihiro Eika, Yoshiyuki Ueno
  • Hydrophilic substance and a production method thereof
    Publication number: 20080061002
    Abstract: The present invention relates to a hydrophilic substance production method characterized in that polyvinylpyrrolidone-containing material wetted with an aqueous solution of a cationic polymer is treated with radiation. The invention makes it possible to produce material for blood treatment that prevents adsorption of blood platelets.
    Type: Application
    Filed: October 16, 2007
    Publication date: March 13, 2008
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroyuki Sugaya, Yoshihiro Eika, Yoshiyuki Ueno
  • Hydrophilic material and process for producing the same
    Publication number: 20040247682
    Abstract: The present invention relates to a hydrophilic substance production method characterized in that polyvinylpyrrolidone-containing material wetted with an aqueous solution of a cationic polymer is treated with radiation. The invention makes it possible to produce material for blood treatment that prevents adsorption of blood platelets.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 9, 2004
    Inventors: Hiroyuki Sugaya, Yoshihiro Eika, Yoshiyuki Ueno