Patents by Inventor Waka Kamichatani

Waka Kamichatani 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).

  • Metal adsorbent containing chelating polymer
    Patent number: 9199219
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: December 1, 2015
    Assignee: NIPPON FILCON CO., LIMITED
    Inventors: Yoshinori Inoue, Mitsuru Saito, Hideyuki Yanai, Waka Kamichatani
  • Adsorbent containing chelating polymer
    Patent number: 9174194
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: November 3, 2015
    Assignee: NIPPON FILCON CO., LIMITED
    Inventors: Yoshinori Inoue, Mitsuru Saito, Hideyuki Yanai, Waka Kamichatani
  • ADSORBENT CONTAINING CHELATING POLYMER
    Publication number: 20150065617
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Application
    Filed: November 4, 2014
    Publication date: March 5, 2015
    Applicant: NIPPON FILCON CO., LIMITED
    Inventors: Yoshinori INOUE, Mitsuru SAITO, Hideyuki YANAI, Waka KAMICHATANI
  • METAL ADSORBENT CONTAINING CHELATING POLYMER
    Publication number: 20120132852
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Application
    Filed: April 16, 2010
    Publication date: May 31, 2012
    Inventors: Yoshinori Inoue, Mitsuru Saito, Hideyuki Yanai, Waka Kamichatani