Patents by Inventor Yoshio Horikawa

Yoshio Horikawa 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: 11493087
    Abstract: An upper raceway ring has an inward flange portion. A lower raceway ring has an outward flange portion. An upper case has an outwardly projecting piece projecting in the radially outward direction toward an end surface of the inward flange portion from a surface facing the end surface. A lower case has an inwardly projecting piece projecting in the radially inward direction toward an end surface of the outward flange portion from a surface facing the end surface. The end surface of the upper raceway ring comes into contact with the outwardly projecting piece of the upper case, to allow the upper raceway ring to be held by the upper case. The end surface of the lower raceway ring comes into contact with the inwardly projecting piece of the lower case, to allow the lower raceway ring to be held by the lower case.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: November 8, 2022
    Assignee: NAKANISHI METALWORKS CO., LTD.
    Inventors: Yoshio Horikawa, Yasuhiro Narazaki, Kohei Shibata
  • Patent number: 11371563
    Abstract: Provided is a strut bearing including an upper case and a lower case that are made of a synthetic resin, and an engaging portion for preventing separation of components which are free from any stress exerted thereon during assembly. The strut bearing includes an outwardly-projecting piece row on an inner diameter side of an upper case, and an inwardly-projecting piece row on an inner diameter side of a lower case. Within a relative pivoting range of the upper and lower cases in a use state of the strut bearing, a detachment preventing engagement portion for preventing the upper and lower cases from being separated from each other in the axial direction is provided. Within a predetermined angle range outside the relative pivoting range, the detachment preventing engagement portion is not present.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: June 28, 2022
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Yasuhiro Narazaki, Yoshio Horikawa, Kohei Shibata
  • Publication number: 20220170510
    Abstract: An upper raceway ring has an inward flange portion. A lower raceway ring has an outward flange portion. An upper case has an outwardly projecting piece projecting in the radially outward direction toward an end surface of the inward flange portion from a surface facing the end surface. A lower case has an inwardly projecting piece projecting in the radially inward direction toward an end surface of the outward flange portion from a surface facing the end surface. The end surface of the upper raceway ring comes into contact with the outwardly projecting piece of the upper case, to allow the upper raceway ring to be held by the upper case. The end surface of the lower raceway ring comes into contact with the inwardly projecting piece of the lower case, to allow the lower raceway ring to be held by the lower case.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 2, 2022
    Inventors: Yoshio HORIKAWA, Yasuhiro NARAZAKI, Kohei SHIBATA
  • Publication number: 20210285487
    Abstract: Provided is a strut bearing including an upper case and a lower case that are made of a synthetic resin, and an engaging portion for preventing separation of components which are free from any stress exerted thereon during assembly. The strut bearing includes an outwardly-projecting piece row on an inner diameter side of an upper case, and an inwardly-projecting piece row on an inner diameter side of a lower case. Within a relative pivoting range of the upper and lower cases in a use state of the strut bearing, a detachment preventing engagement portion for preventing the upper and lower cases from being separated from each other in the axial direction is provided. Within a predetermined angle range outside the relative pivoting range, the detachment preventing engagement portion is not present.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 16, 2021
    Inventors: Yasuhiro NARAZAKI, Yoshio HORIKAWA, Kohei SHIBATA
  • Patent number: 10208800
    Abstract: The inner elastic sealing member 5 includes an inner cylindrical base portion 5A leading to an end portion of an inner cylindrical portion 1B of the inner ring 1, and also includes, at an outer circumferential surface of the inner cylindrical base portion 5A, a projection 7 extending radially outward of an inner periphery of a lower end of an inner cylindrical portion 2B of the outer ring 2. The outer elastic sealing member 6 includes a lip 6B brought into pressure contact with a pressure contact surface B of the outer ring 2. An upper surface 7A of the projection 7 is spaced downward from the lower end of the inner cylindrical portion 2B of the outer ring 2, and an outer circumferential surface 7C of the projection 7 is spaced radially inward from the lower member 8.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 19, 2019
    Assignees: JTEKT CORPORATION, NAKANISHI METAL WORKS CO., LTD.
    Inventors: Hiroshi Yano, Yoshio Horikawa
  • Publication number: 20180023626
    Abstract: The inner elastic sealing member 5 includes an inner cylindrical base portion 5A leading to an end portion of an inner cylindrical portion 1B of the inner ring 1, and also includes, at an outer circumferential surface of the inner cylindrical base portion 5A, a projection 7 extending radially outward of an inner periphery of a lower end of an inner cylindrical portion 2B of the outer ring 2. The outer elastic sealing member 6 includes a lip 6B brought into pressure contact with a pressure contact surface B of the outer ring 2. An upper surface 7A of the projection 7 is spaced downward from the lower end of the inner cylindrical portion 2B of the outer ring 2, and an outer circumferential surface 7C of the projection 7 is spaced radially inward from the lower member 8.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 25, 2018
    Applicants: JTEKT CORPORATION, NAKANISHI METAL WORKS CO., LTD.
    Inventors: Hiroshi YANO, Yoshio HORIKAWA
  • Patent number: 4934812
    Abstract: A light detector is disclosed which comprises a light-receiving section adapted to receive a measuring light beam at a front face thereof and to photoelectrically convert the light beam thus received and a display section adapted to display a measurement result on the basis of an output from the light-receiving section. The display section is constituted by a pair of display segments each having at least one displaying face on a respective one of side faces which are formed on opposed sides of the light-receiving section sandwiching it therebetween and are inclined with respect to the front face in such a direction that back faces thereof approach to each other.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: June 19, 1990
    Assignee: Tokyo Kogaku Kikai Kabushiki Kaisha
    Inventors: Satoshi Hirano, Yoshio Horikawa
  • Patent number: 4692023
    Abstract: An optical adapter for a light-wave rangefinder comprising a light emitting means for emitting a distance measuring light wave modulated by a predetermined modulation frequency, and a light receiving means for receiving a reflecting light wave reflecting from a target point to which the distance measuring light wave is directed, wherein a time delay between the distance measuring light wave and the reflecting light wave is utilized to determine the distance to the target point, the optical adapter comprising at least one photoconduction means for conducting distance measuring light wave and the reflecting light wave, and at least one single objective optical means for projecting the distance measuring light wave from the photoconduction means towards the target point, for condensing the reflecting light wave reflecting form the target point and for guiding the light wave to the photoconduction means.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: September 8, 1987
    Assignee: Tokyo Kagaku Kikai Kabushiki Kaisha
    Inventors: Fumio Ohtomo, Nobuo Hori, Yoshio Horikawa, Kazuaki Kimura, Hiroo Sugai