Patents by Inventor Takaya SUGIURA

Takaya SUGIURA 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).

  • Exhaust gas purification device
    Patent number: 11918986
    Abstract: There is provided an exhaust gas purification device that shows a high HC removal performance under a condition in which a rich air-fuel mixture is introduced. The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region including the upstream end of the substrate. The second catalyst layer is disposed inside the partition wall in a downstream region including the downstream end of the substrate. The first catalyst layer contains a first metal catalyst and alumina-zirconia composite oxide. The second catalyst layer contains a second metal catalyst.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: March 5, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Koji Sugiura, Takeshi Hirabayashi, Akemi Satou, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe, Kohei Takasaki, Takeshi Morishima
  • BRIDGED NUCLEOSIDE AND NUCLEOTIDE USING SAME
    Publication number: 20230340008
    Abstract: Disclosed are a bridged nucleoside and a nucleotide using the same. The nucleoside of the present invention is represented by the formula (I) below. The bridged nucleoside of the present invention is usable as a substitute for a phosphorothioate-modified nucleic acid, which has a risk of, for example, accumulation in a specific organ. The bridged nucleoside also has excellent industrial productivity.
    Type: Application
    Filed: February 18, 2021
    Publication date: October 26, 2023
    Inventors: Satoshi OBIKA, Takao YAMAGUCHI, Hibiki KOMINE, Takaya SUGIURA, Takao INOUE, Tokuyuki YOSHIDA
  • 5'-MODIFIED NUCLEOSIDE AND NUCLEOTIDE USING SAME
    Publication number: 20220372060
    Abstract: Disclosed are a 5?-modified nucleoside and a nucleotide using the same. The nucleoside of the present invention is represented by the formula (I) below. The 5?-modified nucleoside of the present invention is usable as a substitute for a phosphorothioate-modified nucleic acid, which has a risk of, for example, accumulation in a specific organ. The 5?-modified nucleoside also has excellent industrial productivity because a diastereomer separation step is not involved in the production process thereof.
    Type: Application
    Filed: January 31, 2020
    Publication date: November 24, 2022
    Inventors: Satoshi OBIKA, Takao YAMAGUCHI, Takaki HABUCHI, Go KATO, Takao INOUE, Tokuyuki YOSHIDA, Takaya SUGIURA