Patents by Inventor Takahiro Yoshinaga

Takahiro Yoshinaga 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: 11969712
    Abstract: A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity ? between Pd and Ce is 0.15 to 0.50, wherein the proximity ? is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1): ? = ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( ( I ? ( i , j ) - I ave ) ? ( T ? ( i , j ) - T ave ) ) ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( I ? ( i , j ) - I ave ) 2 - ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( T ? ( i , j ) - T ave ) 2 , ( 1 ) a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: April 30, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Kumatani, Akira Morikawa, Masaoki Iwasaki, Miho Hatanaka, Taizo Yoshinaga, Masahide Miura, Takahiro Hayashi
  • Patent number: 10807138
    Abstract: A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: October 20, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yasunobu Miyazaki, Yasuaki Naito, Kaoru Kawasaki, Takahiro Yoshinaga
  • Publication number: 20180126437
    Abstract: A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Yasunobu Miyazaki, Yasuaki Naito, Kaoru Kawasaki, Takahiro Yoshinaga
  • Patent number: 9901969
    Abstract: A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 27, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yasunobu Miyazaki, Yasuaki Naito, Kaoru Kawasaki, Takahiro Yoshinaga
  • Publication number: 20150043962
    Abstract: A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 12, 2015
    Inventors: Yasunobu Miyazaki, Yasuaki Naito, Kaoru Kawasaki, Takahiro Yoshinaga
  • Patent number: 6791287
    Abstract: A deflection yoke device includes a deflection yoke for deflecting electron beams in horizontal and vertical directions, the electron beams being emitted from an electron gun of a color cathode ray tube; coma correcting coils positioned on an electron gun side of the deflection yoke so as to be opposed to each other in such a manner that the electron beams pass therebetween; and a pair of cores around which the coma correcting coils are wound, wherein a sliding mechanism is further provided for allowing each of the coma correcting coils to be slidable with respect to the corresponding core. Therefore, a misconvergence can be corrected by a simplified configuration without reducing a sensitivity of the coma correcting coils.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: September 14, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichiro Taniwa, Katsuyo Iwasaki, Takahiro Yoshinaga
  • Publication number: 20030173913
    Abstract: A deflection yoke device includes a deflection yoke for deflecting electron beams in horizontal and vertical directions, the electron beams being emitted from an electron gun of a color cathode ray tube; coma correcting coils positioned on an electron gun side of the deflection yoke so as to be opposed to each other in such a manner that the electron beams pass therebetween; and a pair of cores around which the coma correcting coils are wound, wherein a sliding mechanism is further provided for allowing each of the coma correcting coils to be slidable with respect to the corresponding core. Therefore, a misconvergence can be corrected by a simplified configuration without reducing a sensitivity of the coma correcting coils.
    Type: Application
    Filed: September 30, 2002
    Publication date: September 18, 2003
    Inventors: Kenichiro Taniwa, Katsuyo Iwasaki, Takahiro Yoshinaga