Patents by Inventor Kazuki Isa

Kazuki Isa 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).

  • GREASE COMPOSITION AND ROLLING BEARING
    Publication number: 20230272299
    Abstract: The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.
    Type: Application
    Filed: July 5, 2021
    Publication date: August 31, 2023
    Applicants: JTEKT CORPORATION, KYODO YUSHI CO., LTD.
    Inventors: Kanako NIIYA, Kazunori MIYAKE, Masayuki MURAKAMI, Shota AKIMOTO, Takahiro MAEDA, Kaname NISHI, Michitaka YOSHIHARA, Kazuki ISA, Koki ANDO
  • GREASE COMPOSITION FOR TAPERED ROLLER BEARING
    Publication number: 20220017836
    Abstract: A grease composition for a tapered roller bearing comprising: (a) at least one compound selected from the group consisting of metallic salts each having a metallic group having a valence of 2 as an additive; (b) a base oil containing a synthetic oil having a viscosity index of 110 or more and a pour point of ?35° C. or less in an amount of 40% or more of the entire base oil; (c) a thickener; and (d) an antioxidant.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 20, 2022
    Applicant: KYODO YUSHI CO., LTD.
    Inventors: Kazuki ISA, Yuki TAKEYAMA, Yuta SATO
  • Grease composition
    Patent number: 10844309
    Abstract: Provided is a grease composition for a magnet clutch of an automobile, including: a base oil; and a thickener, wherein the composition contains 5% by mass or more of a sulfur content in terms of sulfur element relative to a total mass of the composition.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: November 24, 2020
    Assignees: KYODO YUSHI CO., LTD., DENSO CORPORATION
    Inventors: Shozo Ikejima, Iwaki Hirooka, Yutaka Imai, Ryosuke Ichimura, Kazuki Isa, Yusuke Asada, Kyoji Inukai, Hiromasa Tanaka, Masashi Tobayama, Toshizo Watanabe
  • GREASE COMPOSITION
    Publication number: 20190062664
    Abstract: Provided is a grease composition for a magnet clutch of an automobile, including: a base oil; and a thickener, wherein the composition contains 5% by mass or more of a sulfur content in terms of sulfur element relative to a total mass of the composition.
    Type: Application
    Filed: July 5, 2018
    Publication date: February 28, 2019
    Applicants: Kyodo Yushi Co., Ltd., Denso Corporation
    Inventors: Shozo Ikejima, Iwaki Hirooka, Yutaka Imai, Ryosuke Ichimura, Kazuki Isa, Yusuke Asada, Kyoji Inukai, Hiromasa Tanaka, Masashi Tobayama, Toshizo Watanabe