Patents by Inventor Sodai SHIMAUCHI

Sodai SHIMAUCHI 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: 12049940
    Abstract: A shock absorber is provided with a cylinder, a piston inserted into the cylinder and demarcating an interior of the cylinder into an extension side chamber and a compression side chamber, a piston rod joined to the piston, a damping passage, provided in the piston rod, that communicates with the extension side chamber and the compression side chamber, and a damping force adjustment valve provided in the damping passage. The damping force adjustment valve includes a damping force adjustment unit and a solenoid that drives the damping force adjustment unit to adjust a flow channel resistance. The piston rod includes a yoke into which the damping force adjustment valve is inserted, and a piston holding member mounted on the yoke. The yoke includes a through-hole opening from a side of the yoke and leading to the interior, and a groove provided on a perimeter of the yoke, extending from an anti-piston end, and leading to the through-hole.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: July 30, 2024
    Assignee: KYB Corporation
    Inventors: Takumi Hayashiguchi, Koichiro Awano, Takahisa Mochizuki, Sodai Shimauchi
  • Patent number: 11988266
    Abstract: A shock absorber includes a hard-side damping element that gives resistance to a flow of liquid from an extension side chamber toward a compression side chamber, an electromagnetic valve capable of changing an opening area of an extension side bypass passage that bypasses the hard-side damping element and communicates the extension side chamber and the compression side chamber, and a soft-side damping element provided in the extension side bypass passage in series with the electromagnetic valve, in which the hard-side damping element includes an orifice and a leaf valve provided in parallel with the orifice, and in which the soft-side damping element includes an orifice having an opening area larger than an opening area of the orifice.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: May 21, 2024
    Assignee: KYB Corporation
    Inventors: Koichiro Awano, Takahisa Mochizuki, Sodai Shimauchi
  • Patent number: 11879517
    Abstract: A shock absorber includes a hard side damping element that imparts a resistance to a flow of liquid moving between an extension side chamber and a compression side chamber, a solenoid valve configured to change an aperture area of a bypass passage that bypasses the hard side damping element and communicates with the extension side chamber and the compression side chamber, a soft side damping element provided in series with the solenoid valve in the bypass passage, and a tank connected to the compression side chamber. The hard side damping element includes an orifice and leaf valves provided in parallel with the orifice. The soft side damping element includes an orifice having a larger aperture area than the orifice.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: January 23, 2024
    Assignee: KYB CORPORATION
    Inventors: Sodai Shimauchi, Koichiro Awano, Masashi Uemura
  • Publication number: 20230108079
    Abstract: A shock absorber is provided with a cylinder, a piston inserted into the cylinder and demarcating an interior of the cylinder into an extension side chamber and a compression side chamber, a piston rod joined to the piston, a damping passage, provided in the piston rod, that communicates with the extension side chamber and the compression side chamber, and a damping force adjustment valve provided in the damping passage. The damping force adjustment valve includes a damping force adjustment unit and a solenoid that drives the damping force adjustment unit to adjust a flow channel resistance. The piston rod includes a yoke into which the damping force adjustment valve is inserted, and a piston holding member mounted on the yoke. The yoke includes a through-hole opening from a side of the yoke and leading to the interior, and a groove provided on a perimeter of the yoke, extending from an anti-piston end, and leading to the through-hole.
    Type: Application
    Filed: February 28, 2020
    Publication date: April 6, 2023
    Applicant: KYB CORPORATION
    Inventors: Takumi HAYASHIGUCHI, Koichiro AWANO, Takahisa MOCHIZUKI, Sodai SHIMAUCHI
  • Publication number: 20220136580
    Abstract: A shock absorber includes a hard side damping element that imparts a resistance to a flow of liquid moving between an extension side chamber and a compression side chamber, a solenoid valve configured to change an aperture area of a bypass passage that bypasses the hard side damping element and communicates with the extension side chamber and the compression side chamber, a soft side damping element provided in series with the solenoid valve in the bypass passage, and a tank connected to the compression side chamber. The hard side damping element includes an orifice and leaf valves provided in parallel with the orifice. The soft side damping element includes an orifice having a larger aperture area than the orifice.
    Type: Application
    Filed: February 28, 2020
    Publication date: May 5, 2022
    Applicant: KYB CORPORATION
    Inventors: Sodai SHIMAUCHI, Koichiro AWANO, Masashi UEMURA
  • Publication number: 20220128117
    Abstract: A shock absorber includes a hard-side damping element that gives resistance to a flow of liquid from an extension side chamber toward a compression side chamber, an electromagnetic valve capable of changing an opening area of an extension side bypass passage that bypasses the hard-side damping element and communicates the extension side chamber and the compression side chamber, and a soft-side damping element provided in the extension side bypass passage in series with the electromagnetic valve, in which the hard-side damping element includes an orifice and a leaf valve provided in parallel with the orifice, and in which the soft-side damping element includes an orifice having an opening area larger than an opening area of the orifice.
    Type: Application
    Filed: February 28, 2020
    Publication date: April 28, 2022
    Applicant: KYB CORPORATION
    Inventors: Koichiro AWANO, Takahisa MOCHIZUKI, Sodai SHIMAUCHI