Patents by Inventor Takuro MATSUNAGA

Takuro MATSUNAGA 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: 10907267
    Abstract: A metal-resin composite material including an aluminum substrate having an aluminum oxide coating and a resin bonded to the aluminum substrate through the aluminum oxide coating, wherein the aluminum oxide coating has a porous surface layer in which columns with an average height of 10 to 100 nm are arranged in a dispersed state, an average value of sums of cross-sectional areas of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 8000 to 128000 nm2, an average value of sums of circumferential lengths of cross-sections of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 1000 to 27000 nm, and an average value of numbers of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 10 to 430.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Kazuhiko Umemoto, Takuro Matsunaga, Kenzo Fukumori, Hideaki Matsuoka, Shuxin Dong, Hiroaki Kadoura
  • Publication number: 20180267011
    Abstract: A method of predicting deformation of a resin molded article includes: a step of acquiring resin temperature distribution data at the time of forming the resin molded article; a step of creating crystallinity distribution data, corresponding to the resin temperature distribution data, based on a first correlation between a temperature and crystallinity of the resin molded article, which is obtained using an actually measured crystallinity of the resin molded article; a step of creating mechanical property value distribution data, corresponding to the crystallinity distribution data, based on a second correlation between the crystallinity and the mechanical property value of the resin molded article, which is obtained from the actually measured crystallinity and the mechanical property value of the resin molded article; and a step of predicting the deformation of the resin molded article using the resin temperature distribution data and the mechanical property value distribution data.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 20, 2018
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Mie Funamoto, Tsuyoshi Tanigaki, Daisuke Kaneda, Takuro Matsunaga, Kenzo Fukumori
  • Publication number: 20160194779
    Abstract: A metal-resin composite material including an aluminum substrate having an aluminum oxide coating and a resin bonded to the aluminum substrate through the aluminum oxide coating, wherein the aluminum oxide coating has a porous surface layer in which columns with an average height of 10 to 100 nm are arranged in a dispersed state, an average value of sums of cross-sectional areas of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 8000 to 128000 nm2, an average value of sums of circumferential lengths of cross-sections of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 1000 to 27000 nm, and an average value of numbers of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 10 to 430.
    Type: Application
    Filed: December 5, 2014
    Publication date: July 7, 2016
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Kazuhiko UMEMOTO, Takuro MATSUNAGA, Kenzo FUKUMORI, Hideaki MATSUOKA, Shuxin DONG, Hiroaki KADOURA
  • Publication number: 20160164129
    Abstract: The present invention is to provide a high-performance electrode for fuel cells. Disclosed is an electrode for polymer electrolyte fuel cells, comprising a polymer electrolyte material and a metal catalyst carried on carbon, wherein the polymer electrolyte material is an electrolyte material represented by the following general formula: and wherein, in a graph showing a relationship between a scattering vector magnitude and a scattering intensity, both of which are obtained by measuring the electrode in an air atmosphere by a smaller-angle neutron scattering method, the electrode has such a hydrophilic domain dispersibility that the maximum value of ratios of scattering intensities to baseline intensities for all ion peaks is in a range of more than 1.00 to 1.42.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 9, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Kazuki AMEMIYA, Takuro MATSUNAGA, Masashi HARADA, Akihiro SHINOHARA, Naoki HASEGAWA, Masaaki SUGIYAMA, Yojiro OBA, Nobuhiro SATO