Patents by Inventor Hidetaka Kawakita

Hidetaka Kawakita 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).

  • METHOD FOR SEPARATING CATALYST COMPONENT
    Publication number: 20190241681
    Abstract: Provided is a method of separating a catalyst of a hydrogenated nitrile rubber, the method including: a water-soluble polymer addition step of adding an aqueous solution of a water-soluble polymer to a water-soluble organic solvent solution of the hydrogenated nitrile rubber obtained by hydrogenating a nitrile rubber in the presence of a platinum group element-containing catalyst; and a water-soluble polymer precipitating step of precipitating the water-soluble polymer while incorporating the platinum group element in the water-soluble polymer by stirring the water-soluble organic solvent solution of the hydrogenated nitrile rubber to which the aqueous solution of the water-soluble polymer is added.
    Type: Application
    Filed: July 12, 2017
    Publication date: August 8, 2019
    Applicants: ZEON CORPORATION, SAGA UNIVERSITY
    Inventors: Akito NAKAI, Hidetaka KAWAKITA, Keisuke OHTO, Shintaro MORISADA
  • Adsorption agent for noble metal, method for manufacturing the same, and method for recovering noble metal
    Patent number: 8936666
    Abstract: A noble metal adsorption agent includes algae or residue of algae having an amino group as a functional group. A noble metal is retrieved by a method including: adsorbing the noble metal on the noble metal adsorption agent; and retrieving the noble metal. The noble metal is solved in a liquid. Thus, by using the noble metal adsorption agent, the noble metal is selectively retrieved.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: January 20, 2015
    Assignees: Denso Corporation, Saga University
    Inventors: Hisaya Kato, Toshiyuki Morishita, Kinya Atsumi, Minoru Kurata, Katsutoshi Inoue, Hidetaka Kawakita, Keisuke Ohto
  • Adsorbent and method of collecting precious metal using the same
    Patent number: 8535625
    Abstract: An adsorbent contains a carbohydrate having an ether linkage. Alternatively, an adsorbent contains a carbohydrate having a cross-linkage formation produced by a dehydration reaction using a strong acid. In collection of a precious metal using the adsorbent, the adsorbent selectively adsorbs a precious metal dissolved in a solution.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: September 17, 2013
    Assignees: Denso Corporation, Saga University
    Inventors: Minoru Kurata, Kinya Atsumi, Hiroaki Fukuda, Katsutoshi Inoue, Keisuke Ohto, Hidetaka Kawakita
  • ADSORBENT AND METHOD OF COLLECTING PRECIOUS METAL USING THE SAME
    Publication number: 20120219479
    Abstract: An adsorbent contains a carbohydrate having an ether linkage. Alternatively, an adsorbent contains a carbohydrate having a cross-linkage formation produced by a dehydration reaction using a strong acid. In collection of a precious metal using the adsorbent, the adsorbent selectively adsorbs a precious metal dissolved in a solution.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 30, 2012
    Applicants: Saga University, DENSO CORPORATION
    Inventors: Minoru Kurata, Kinya Atsumi, Hiroaki Fukuda, Katsutoshi Inoue, Keisuke Ohto, Hidetaka Kawakita
  • Adsorption agent for noble metal, method for manufacturing the same, and method for recovering noble metal
    Publication number: 20110308355
    Abstract: A noble metal adsorption agent includes algae or residue of algae having an amino group as a functional group. A noble metal is retrieved by a method including: adsorbing the noble metal on the noble metal adsorption agent; and retrieving the noble metal. The noble metal is solved in a liquid. Thus, by using the noble metal adsorption agent, the noble metal is selectively retrieved.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicants: Saga University, DENSO CORPORATION
    Inventors: Hisaya Kato, Toshiyuki Morishita, Kinya Atsumi, Minoru Kurata, Katsutoshi Inoue, Hidetaka Kawakita, Keisuke Ohto