Patents by Inventor Yu SAKURADA

Yu SAKURADA 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).

  • Publication number: 20210039080
    Abstract: A substrate (11) of an exhaust gas purification catalyst (10) includes inflow-side cells (21), outflow-side cells (22), and porous partition walls (23), each porous partition wall separating the cells (21, 22) from each other. A first catalyst portions (14) is provided at least on a portion of a side of the partition wall (23) that faces the inflow-side cell (21), the portion being located on an upstream side in an exhaust gas flow direction, and a second catalyst portion (15) is provided at least on a portion of a side of the partition wall that faces the outflow-side cell, the portion being located on a downstream side in the exhaust gas flow direction.
    Type: Application
    Filed: March 19, 2019
    Publication date: February 11, 2021
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Hiroki KURIHARA, Yu SAKURADA, Yusuke NAGAI, Yoshinori ENDO, Takeshi NABEMOTO, Shingo AKITA
  • Publication number: 20210001315
    Abstract: A substrate (11) includes an inflow-side cell (21), an outflow-side cell (22), and a porous, gas-permeable partition wall (23) that separates the inflow-side cell (21) and the outflow-side cell (22) from each other, and also includes a first catalyst portion (14) that is provided on a side of the partition wall (23) that faces the inflow-side cell (21) at least at a portion in upstream side in an exhaust gas flow direction, and a second catalyst portion (15) that is provided on a side of the partition wall that faces the outflow-side cell at least at a portion in downstream side.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 7, 2021
    Inventors: Hiroki KURIHARA, Yu SAKURADA, Yusuke NAGAI, Yoshinori ENDO, Takeshi NABEMOTO, Shingo AKITA
  • Patent number: 10828602
    Abstract: A novel exhaust gas purifying catalyst, method for producing same, and an exhaust gas purification device using same, which are capable of maintaining catalytic activity of a precious metal at a higher level than compared with conventional exhaust gas purifying catalysts. An exhaust gas purifying catalyst having a first carrier particle, a second carrier particle, and a precious metal catalyst particle carried on the first and second carrier particles, wherein: the first carrier particle contains a rare-earth oxide other than ceria and at least one metal oxide selected from the group consisting of silica, alumina, ceria, zirconia, and titania; the second carrier particle contains a rare-earth oxide other than ceria; and the contained amount of the rare-earth oxide in the second carrier particle is higher than the contained amount of the rare-earth oxide in the first carrier particle.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 10, 2020
    Assignee: CATALER CORPORATION
    Inventors: Yu Sakurada, Satoshi Matsueda, Sho Hoshino, Ryota Nakashima
  • Patent number: 10710023
    Abstract: An exhaust gas purification catalyst, characterized by having a catalyst layer containing palladium, rhodium, and alumina, which supports a sulfate of an alkaline-earth metal selected from barium sulfate and strontium sulfate, and the correlation coefficients ?Pd,AE and ?Rh,AE calculated from the characteristic X-ray intensity measured using an electron beam micro-analyzer for the palladium, rhodium, and alkaline-earth metal being +0.75 to +1.00 and 0.00 to +0.25, respectively, using 350 points as measurement points obtained by equally dividing the catalyst layer into 351 parts in the thickness direction on a virtual straight line that runs through the catalyst layer in the thickness direction.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 14, 2020
    Assignee: CATALER CORPORATION
    Inventors: Koki Yanagawa, Satoshi Matsueda, Yu Sakurada, Chihiro Kasuya
  • Publication number: 20190099715
    Abstract: An exhaust gas purifying catalyst having first carrier particles, second carrier particles, and precious metal catalyst particles supported on the first and second carrier particles, wherein: the first carrier particles contain ceria, zirconia, and a rare-earth oxide other than ceria; the second carrier particles contain a rare-earth oxide other than ceria, and may contain ceria and zirconia; the contained proportion of ceria and zirconia in the first carrier particles is higher than the contained proportion of ceria and zirconia in the second carrier particles; the contained proportion of the rare-earth oxide in the second carrier particles is higher than the contained proportion of the rare-earth oxide in the first carrier particles; and the contained proportion of ceria in the first carrier particles is 45 wt % or less, while the precious metal catalyst particles include rhodium particles.
    Type: Application
    Filed: March 9, 2017
    Publication date: April 4, 2019
    Applicant: CATALER CORPORATION
    Inventors: Yu SAKURADA, Takahiro HARADA, Ryota NAKASHIMA
  • Publication number: 20190083931
    Abstract: An exhaust gas purification catalyst, characterized by having a catalyst layer containing palladium, rhodium, and alumina, which supports a sulfate of an alkaline-earth metal selected from barium sulfate and strontium sulfate, and the correlation coefficients ?Pd,AE and ?Rh,AE calculated from the characteristic X-ray intensity measured using an electron beam micro-analyzer for the palladium, rhodium, and alkaline-earth metal being +0.75 to +1.00 and 0.00 to +0.25, respectively, using 350 points as measurement points obtained by equally dividing the catalyst layer into 351 parts in the thickness direction on a virtual straight line that runs through the catalyst layer in the thickness direction.
    Type: Application
    Filed: February 23, 2017
    Publication date: March 21, 2019
    Applicant: CATALER CORPORATION
    Inventors: Koki YANAGAWA, Satoshi MATSUEDA, Yu SAKURADA, Chihiro KASUYA
  • Publication number: 20180311616
    Abstract: A novel exhaust gas purifying catalyst, method for producing same, and an exhaust gas purification device using same, which are capable of maintaining catalytic activity of a precious metal at a higher level than compared with conventional exhaust gas purifying catalysts. An exhaust gas purifying catalyst having a first carrier particle, a second carrier particle, and a precious metal catalyst particle carried on the first and second carrier particles, wherein: the first carrier particle contains a rare-earth oxide other than ceria and at least one metal oxide selected from the group consisting of silica, alumina, ceria, zirconia, and titania; the second carrier particle contains a rare-earth oxide other than ceria; and the contained amount of the rare-earth oxide in the second carrier particle is higher than the contained amount of the rare-earth oxide in the first carrier particle.
    Type: Application
    Filed: October 24, 2016
    Publication date: November 1, 2018
    Applicant: CATALER CORPORATION
    Inventors: Yu SAKURADA, Satoshi MATSUEDA, Sho HOSHINO, Ryota NAKASHIMA
  • Publication number: 20160013496
    Abstract: A substrate film for use in a catalyst transfer film is provided. The substrate film is used in a catalyst transfer film that has the substrate film and a catalyst layer formed of a catalyst ink on one surface of the substrate film, the catalyst transfer film transferring the catalyst layer to a solid polymer electrolyte membrane. The substrate film for use in a catalyst transfer film is provided with a marginal edge layer formed of a surface treatment material having no affinity for the catalyst ink, in an area of a marginal edge of a target area that is set in advance for forming a target pattern of the catalyst layer.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventor: Yu SAKURADA