Patents by Inventor Takane Imaoka

Takane Imaoka 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).

  • Patent number: 10781290
    Abstract: A multiple-metal salt assembly of a dendrimer in which multiple-metal salt compounds with a number of, for example, four or more types of multiple metals can be assembled for each of parts with different environments so that the total metal atom number becomes less than 60. Also, a method for producing the multiple-metal salt assembly, and a method for producing subnano metal particles including the multiple-metal salt assembly of the dendrimer.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 22, 2020
    Assignee: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Kimihisa Yamamoto, Takamasa Tsukamoto, Tetsuya Kambe, Naoki Haruta, Takane Imaoka
  • Publication number: 20190382537
    Abstract: Provided are a multiple-metal salt assembly of dendrimer in which multiple-metal salt compounds with a number of, for example four or more types, particularly five or more types of multiple metals can be assembled for each of parts with different environments so that, particularly, the total metal atom number becomes less than 60, a method for producing the same, and a method for producing subnano metal particles including the multiple-metal salt assembly of the dendrimer.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 19, 2019
    Applicant: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Kimihisa YAMAMOTO, Takamasa TSUKAMOTO, Tetsuya KAMBE, Naoki HARUTA, Takane IMAOKA
  • Patent number: 9212267
    Abstract: A method of producing a metal complex-supporting mesoporous material that can support a metal complex in the pores thereof without causing aggregation of the metal complex. A metal complex-supporting mesoporous material supporting a metal complex in the pores thereof without causing aggregation of the metal complex. A method of producing a mesoporous material supporting metal-containing nanoparticles using the metal complex supported in the pores of the mesoporous material as a template. A solution of a metal complex prepared by a phenyl azomethine dendrimer compound having a specific structure is brought into contact with a mesoporous material so that the metal complex of the phenyl azomethine dendrimer compound is supported by the mesoporous material.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: December 15, 2015
    Assignees: TOKYO OHKA KOGYO CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Isao Hirano, Takane Imaoka, Kimihisa Yamamoto
  • Patent number: 9192994
    Abstract: A method for producing a substrate having dispersed particles of a dendrimer compound on the surface thereof, the method including: an application step including dissolving a phenyl azomethine dendrimer compound in a solvent to prepare a solution, and applying the solution on the surface of a substrate; and a volatilization step including volatilizing the solvent from the solution applied on the surface of the substrate, the phenyl azomethine dendrimer compound included in the solution having a concentration of no greater than 5 ?mol/L is employed.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 24, 2015
    Assignees: TOKYO OHKA KOGYO CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Isao Hirano, Kimihisa Yamamoto, Takane Imaoka
  • Publication number: 20140242388
    Abstract: A method of producing a metal complex-supporting mesoporous material that can support a metal complex in the pores thereof without causing aggregation of the metal complex. A metal complex-supporting mesoporous material supporting a metal complex in the pores thereof without causing aggregation of the metal complex. A method of producing a mesoporous material supporting metal-containing nanoparticles using the metal complex supported in the pores of the mesoporous material as a template. A solution of a metal complex prepared by a phenyl azomethine dendrimer compound having a specific structure is brought into contact with a mesoporous material so that the metal complex of the phenyl azomethine dendrimer compound is supported by the mesoporous material.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicants: Tokyo Institute of Technology, Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Isao Hirano, Takane Imaoka, Kimihisa Yamamoto
  • Patent number: 8728431
    Abstract: A method for preparing carbon nanotubes including attaching a catalyst consisting of a compound in which a transition metal element of Group 8, 9 or 10 is coordinated to a nitrogen-containing dendrimer compound having at least one nitrogen atom, to which a metal element may be coordinated, on a surface of a substrate, and thermally decomposing a carbon compound in the vicinity of the substrate while supplying the carbon compound on the surface of the substrate to which the catalyst is attached. The catalyst for producing the carbon nanotubes is a compound in which a transition metal element of Group 8, 9 or 10 is coordinated to a nitrogen-containing dendrimer compound having at least one nitrogen atom to which a metal element may be coordinated.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: May 20, 2014
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Tokyo Institute of Technology
    Inventors: Takashi Ono, Isao Hirano, Satoshi Fujimura, Kimihisa Yamamoto, Takane Imaoka
  • Publication number: 20130040107
    Abstract: A method for producing a substrate having dispersed particles of a dendrimer compound on the surface thereof, the method including: an application step including dissolving a phenyl azomethine dendrimer compound in a solvent to prepare a solution, and applying the solution on the surface of a substrate; and a volatilization step including volatilizing the solvent from the solution applied on the surface of the substrate, the phenyl azomethine dendrimer compound included in the solution having a concentration of no greater than 5 ?mol/L is employed.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 14, 2013
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, TOKYO OHKA KOGYO CO., LTD.
    Inventors: Isao Hirano, Takane Imaoka, Kimihisa Yamamoto
  • Publication number: 20120308470
    Abstract: A method for preparing carbon nanotubes including attaching a catalyst consisting of a compound in which a transition metal element of Group 8, 9 or 10 is coordinated to a nitrogen-containing dendrimer compound having at least one nitrogen atom, to which a metal element may be coordinated, on a surface of a substrate, and thermally decomposing a carbon compound in the vicinity of the substrate while supplying the carbon compound on the surface of the substrate to which the catalyst is attached. The catalyst for producing the carbon nanotubes is a compound in which a transition metal element of Group 8, 9 or 10 is coordinated to a nitrogen-containing dendrimer compound having at least one nitrogen atom to which a metal element may be coordinated.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takashi Ono, Isao Hirano, Satoshi Fujimura, Kimihisa Yamamoto, Takane Imaoka