Patents by Inventor Hiroyoshi Yasutake

Hiroyoshi Yasutake 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: 20230258232
    Abstract: A guide device includes a track member and a moving member engaged with the track member with a plurality of rolling elements interposed therebetween. A lubricating path is formed in the moving member for supplying lubricant to a circulation path for the rolling elements. The lubricating path has a common path including an inlet portion that serves as a supply port for the lubricant, a first path through which grease flows, and a second path through which lubricating oil flows. A cross-sectional area of the second path is smaller than a cross-sectional area of the first path, and in the common path, a second communication portion of the second path is located closer to the inlet portion than a first communication portion of the first path. Further, the guide device includes a plug member for blocking the inlet portion of the common path, the plug member being removable and able to be moved within the common path.
    Type: Application
    Filed: July 5, 2021
    Publication date: August 17, 2023
    Applicant: THK CO., LTD.
    Inventors: Hiroyoshi Yasutake, Ryuji Furusawa, Ryunosuke Ozeki, Ryosuke Maruki
  • Publication number: 20230182247
    Abstract: A guide apparatus includes a track member, a movable member having a first rolling surface that forms a load rolling passage together with a rolling surface of the track member, and a damper provided on a first surface. The first surface is at least a portion of the surface of the movable member opposed to the track member excluding the first rolling surface. The damper includes a plate member disposed in such a way as to cover the first area and a reservoir space formed between one surface of the plate member and the first area. The reservoir space contains a damping medium and allows the plate member to displace relative to the first area. The damper is provided on the movable member in such a way that the other surface of the plate member slides on at least a portion of the surface of the track member opposed to the movable member.
    Type: Application
    Filed: May 24, 2021
    Publication date: June 15, 2023
    Applicant: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Ryuji Furusawa, Tomomitsu Hirohashi, Ayako Miyajima, Hiroyoshi Yasutake, Ryunosuke Ozeki, Ryosuke Maruki
  • Patent number: 11199222
    Abstract: A motion guide device includes: a track member including a rolling member rolling surface; a movable member including a loaded rolling member rolling surface, and a rolling member return passage; a pair of cap members including a direction change passage connecting the loaded rolling member rolling surface and the rolling member return passage; and a plurality of rolling members arrayed in a rollable manner on a loaded rolling member rolling passage, the rolling member return passage, and a pair of the direction change passages, the loaded rolling member rolling passage being made up of the rolling member rolling surface and the loaded rolling member rolling surface. A gap between the rolling member and the direction change passage at a boundary portion X is formed so as to become smaller than a gap between the rolling member and the rolling member rolling surface at the boundary portion.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 14, 2021
    Assignee: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima, Shinji Aoki, Takuma Tsunoda
  • Patent number: 10914341
    Abstract: The motion guide device includes a lubricant supply passage provided in at least one of a pair of cover members provided to a movable member and configured to supply lubricant to an endless circulation passage, in which the lubricant supply passage includes at least a first lubricant supply passage ? formed to extend in a direction orthogonal to a longitudinal direction of the track member from at least one of a left side surface and a right side surface of the cover member, and a second lubricant supply passage ? connected to the first lubricant supply passage ?, and a passage shape in a place connected to the first lubricant supply passage ? of the second lubricant supply passage ? is configured as a diameter-expanded hollow section having a diameter more expanded than a passage shape of another place. Thus, a new form of a cover member is provided.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: February 9, 2021
    Assignee: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima
  • Publication number: 20200332833
    Abstract: A motion guide device includes: a track member including a rolling member rolling surface; a movable member including a loaded rolling member rolling surface, and a rolling member return passage; a pair of cap members including a direction change passage connecting the loaded rolling member rolling surface and the rolling member return passage; and a plurality of rolling members arrayed in a rollable manner on a loaded rolling member rolling passage, the rolling member return passage, and a pair of the direction change passages, the loaded rolling member rolling passage being made up of the rolling member rolling surface and the loaded rolling member rolling surface. A gap between the rolling member and the direction change passage at a boundary portion X is formed so as to become smaller than a gap between the rolling member and the rolling member rolling surface at the boundary portion.
    Type: Application
    Filed: August 14, 2018
    Publication date: October 22, 2020
    Applicant: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima, Shinji Aoki, Takuma Tsunoda
  • Publication number: 20200158172
    Abstract: The motion guide device includes a lubricant supply passage provided in at least one of a pair of cover members provided to a movable member and configured to supply lubricant to an endless circulation passage, in which the lubricant supply passage includes at least a first lubricant supply passage ? formed to extend in a direction orthogonal to a longitudinal direction of the track member from at least one of a left side surface and a right side surface of the cover member, and a second lubricant supply passage ? connected to the first lubricant supply passage ?, and a passage shape in a place connected to the first lubricant supply passage ? of the second lubricant supply passage ? is configured as a diameter-expanded hollow section having a diameter more expanded than a passage shape of another place. Thus, a new form of a cover member is provided.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 21, 2020
    Applicant: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima
  • Patent number: D875150
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 11, 2020
    Assignee: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima
  • Patent number: D916939
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: April 20, 2021
    Assignee: THK CO., LTD.
    Inventors: Hiroyuki Kishi, Mitsumasa Wada, Hiroyoshi Yasutake, Eriko Oshima