Patents by Inventor Masaji Akimoto

Masaji Akimoto 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).

  • Electrode catalyst and method for producing the same
    Patent number: 10193162
    Abstract: An electrode catalyst obtained by calcining a metal phthalocyanine polymer having a repeating structural unit obtained by the amide bonding of a structural unit represented by general formula (1a) to a structural unit represented by general formula (2a) to form a calcined body, then treating the calcined body with an acid. Formula (1a) (wherein L is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.) Formula (2a) (wherein M is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: January 29, 2019
    Assignee: Kumiai Chemical Industry Co., Ltd.
    Inventors: Nobukatsu Nemoto, Izuru Kobayashi, Kazuto Umezu, Masaji Akimoto
  • Metal phthalocyanine polymer and electrode catalyst produced using the same, and producing methods thereof
    Patent number: 9774042
    Abstract: The present invention relates to a metal phthalocyanine polymer that includes a repeating structural unit obtained by amide bonding of a structural unit represented by the following general formula (1a) to a structural unit represented by the following general formula (2a): With general formula (1a), L is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table. With general formula (2a), M is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 26, 2017
    Assignee: KUMIAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Nobukatsu Nemoto, Izuru Kobayashi, Kazuto Umezu, Masaji Akimoto
  • Electrode Catalyst and Method for Producing the Same
    Publication number: 20170104220
    Abstract: An electrode catalyst obtained by calcining a metal phthalocyanine polymer having a repeating structural unit obtained by the amide bonding of a structural unit represented by general formula (1a) to a structural unit represented by general formula (2a) to form a calcined body, then treating the calcined body with an acid. Formula (1a) (wherein L is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.) Formula (2a) (wherein M is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.
    Type: Application
    Filed: March 20, 2015
    Publication date: April 13, 2017
    Applicant: Ihara Chemical Industry Co., Ltd.
    Inventors: Nobukatsu Nemoto, Izuru Kobayashi, Kazuto Umezu, Masaji Akimoto
  • Metal Phthalocyanine Polymer and Electrode Catalyst Produced Using the Same, and Producing Methods Thereof
    Publication number: 20160036066
    Abstract: The present invention is a metal phthalocyanine polymer comprising a repeating structural unit obtained by amide bonding of a structural unit represented by general formula (1a) to a structural unit represented by general formula (2a). (wherein L is a divalent or trivalent metal ion belonging to Group 3 to Group 5 on the long-form periodic table.) (wherein M is a divalent or trivalent metal ion belonging to Group 3 to Group 5 on the long-form periodic table.
    Type: Application
    Filed: April 11, 2014
    Publication date: February 4, 2016
    Applicant: Ihara Chemical Industry Co., Ltd.
    Inventors: Nobukatsu Nemoto, Izuru Kobayashi, Kazuto Umezu, Masaji Akimoto
  • Aligning agent for liquid crystal and liquid-crystal display element
    Publication number: 20060024452
    Abstract: To provide a liquid crystal alignment treating agent to obtain a liquid alignment film of polyamide type which, in its applications to various display devices employing nematic liquid crystal, is excellent in voltage retention, has a reduced charge accumulation and is excellent in durability against rubbing treatment, and a liquid crystal display device employing it.
    Type: Application
    Filed: September 25, 2003
    Publication date: February 2, 2006
    Applicant: Nissan Chemical Industries, Ltd.
    Inventors: Mitsumasa Kondo, Masaji Akimoto, Kiyoshi Sawahata