Patents by Inventor Hanako ASAI

Hanako ASAI 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).

  • Publication number: 20220347367
    Abstract: Provided is a blood filter that resists deterioration in properties as a result of electron beam sterilization treatment performed before or during use as a blood filter, has durability, dimensional stability, and chemical resistance at excellent levels, also has biocompatibility, and resists deterioration in properties even upon the electron beam sterilization treatment. The blood filter according to the present invention includes a nonwoven fabric made of PEEK fibers. Preferably, the blood filter according to the present invention has an average pore size of 3 to 280 ?m and has a porosity of 15% to 70%; and the PEEK fibers have an average fiber diameter of 10 ?m or less.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takashi ARAI, Yo YAMATO, Koji NAKANE, Naoki SHIMADA, Hanako ASAI
  • Patent number: 11419970
    Abstract: Provided is a blood filter that resists deterioration in properties as a result of electron beam sterilization treatment performed before or during use as a blood filter, has durability, dimensional stability, and chemical resistance at excellent levels, also has biocompatibility, and resists deterioration in properties even upon the electron beam sterilization treatment. The blood filter according to the present invention includes a nonwoven fabric made of PEEK fibers. Preferably, the blood filter according to the present invention has an average pore size of 3 to 280 ?m and has a porosity of 15% to 70%; and the PEEK fibers have an average fiber diameter of 10 ?m or less.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 23, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Takashi Arai, Yo Yamato, Koji Nakane, Naoki Shimada, Hanako Asai
  • Patent number: 11344653
    Abstract: Provided is a bone fixation material that does not deteriorate in properties even by an electron beam sterilization treatment performed before or during use as a bone fixation material, has fatigue resistance, wear resistance, and dimensional stability at excellent levels, also has biocompatibility, and offers excellent osteoconnectivity. The bone fixation material according to the present invention includes a nonwoven fabric made of PEEK fibers. The bone fixation material according to the present invention preferably has an average pore size of 3 to 280 ?m and preferably has a porosity of 15% to 70%. The PEEK fibers preferably have an average fiber diameter of 10 ?m or less.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 31, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Takashi Arai, Yo Yamato, Koji Nakane, Naoki Shimada, Hanako Asai
  • Publication number: 20200306414
    Abstract: Provided is a bone fixation material that does not deteriorate in properties even by an electron beam sterilization treatment performed before or during use as a bone fixation material, has fatigue resistance, wear resistance, and dimensional stability at excellent levels, also has biocompatibility, and offers excellent osteoconnectivity. The bone fixation material according to the present invention includes a nonwoven fabric made of PEEK fibers. The bone fixation material according to the present invention preferably has an average pore size of 3 to 280 ?m and preferably has a porosity of 15% to 70%. The PEEK fibers preferably have an average fiber diameter of 10 ?m or less.
    Type: Application
    Filed: December 22, 2017
    Publication date: October 1, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Takashi ARAI, Yo YAMATO, Koji NAKANE, Naoki SHIMADA, Hanako ASAI
  • Publication number: 20200129688
    Abstract: Provided is a blood filter that resists deterioration in properties as a result of electron beam sterilization treatment performed before or during use as a blood filter, has durability, dimensional stability, and chemical resistance at excellent levels, also has biocompatibility, and resists deterioration in properties even upon the electron beam sterilization treatment. The blood filter according to the present invention includes a nonwoven fabric made of PEEK fibers. Preferably, the blood filter according to the present invention has an average pore size of 3 to 280 ?m and has a porosity of 15% to 70%; and the PEEK fibers have an average fiber diameter of 10 ?m or less.
    Type: Application
    Filed: December 22, 2017
    Publication date: April 30, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Takashi ARAI, Yo YAMATO, Koji NAKANE, Naoki SHIMADA, Hanako ASAI