Patents by Inventor Naoya Yoshizawa

Naoya Yoshizawa 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: 11852473
    Abstract: To provide a vehicle operating pedal apparatus with a compact space for mounting an angle sensor that detects the angle of rotation of an operating pedal. A vehicle operating pedal apparatus (10) includes: a left support member (20) and a right support member (22) that face each other; an operating pedal (12) that is provided at the upper end with a boss (18), and supported between the left support member (20) and the right support member (22) in such a manner as to be pivotable via a pivot bolt (26) and a collar (29) that are inserted into the boss (18); and an angle sensor (50) configured to detect the angle of rotation of the operating pedal (12). The angle sensor (50) includes: an IC (56) provided on an inner side between the left support member (20) and the right support member (22); and a magnet (58) provided at the upper end of the operating pedal (12), facing the IC (56), to be detected by the IC (56).
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 26, 2023
    Assignees: TOYODA IRON WORKS CO., LTD., AISIN CORPORATION
    Inventors: Tomohiro Tsuguma, Jyunya Abe, Masashi Momiyama, Kota Saito, Naoya Yoshizawa
  • Patent number: 11578994
    Abstract: A fixing structure includes a housing including a first hole, an input member including a second hole, and rotating relative to the housing, depending on input of rotational force, a torsion spring being biased so as to return, to a predetermined reference position, a position of the input member relative to the housing, and a fixing member inserted into the first hole and the second hole in a state where the input member is rotated against biasing force of the torsion spring from the reference position to a predetermined rotational position. The fixing member includes a first insertion portion including a part press-fitted into and fixed to the first hole, and a second insertion portion including a part inserted into the second hole, and fixes the input member at the predetermined rotational position.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 14, 2023
    Assignee: AISIN CORPORATION
    Inventors: Kohei Sakakibara, Naoya Yoshizawa
  • Publication number: 20220373319
    Abstract: To provide a vehicle operating pedal apparatus with a compact space for mounting an angle sensor that detects the angle of rotation of an operating pedal. A vehicle operating pedal apparatus (10) includes: a left support member (20) and a right support member (22) that face each other; an operating pedal (12) that is provided at the upper end with a boss (18), and supported between the left support member (20) and the right support member (22) in such a manner as to be pivotable via a pivot bolt (26) and a collar (29) that are inserted into the boss (18); and an angle sensor (50) configured to detect the angle of rotation of the operating pedal (12). The angle sensor (50) includes: an IC (56) provided on an inner side between the left support member (20) and the right support member (22); and a magnet (58) provided at the upper end of the operating pedal (12), facing the IC (56), to be detected by the IC (56).
    Type: Application
    Filed: October 23, 2020
    Publication date: November 24, 2022
    Inventors: Tomohiro TSUGUMA, Jyunya ABE, Masashi MOMIYAMA, Kota SAITO, Naoya YOSHIZAWA
  • Publication number: 20200378796
    Abstract: A fixing structure includes a housing including a first hole, an input member including a second hole, and rotating relative to the housing, depending on input of rotational force, a torsion spring being biased so as to return, to a predetermined reference position, a position of the input member relative to the housing, and a fixing member inserted into the first hole and the second hole in a state where the input member is rotated against biasing force of the torsion spring from the reference position to a predetermined rotational position. The fixing member includes a first insertion portion including a part press-fitted into and fixed to the first hole, and a second insertion portion including a part inserted into the second hole, and fixes the input member at the predetermined rotational position.
    Type: Application
    Filed: March 13, 2020
    Publication date: December 3, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kohei SAKAKIBARA, Naoya YOSHIZAWA
  • Patent number: 9627123
    Abstract: A solenoid includes: a coil wound around a bobbin; a case section accommodating the coil; a tubular yoke arranged on an inner circumferential portion of the coil; and a plunger arranged on an inner circumferential portion of the yoke, and moving from a start position along an axial direction of the yoke by magnetic attraction force generated in the yoke, wherein a diameter increasing portion whose diameter is increased from the start position toward a lower part in the axial direction is formed on an outer circumferential surface of the yoke, and the diameter increasing portion overlaps at least a part of a moving region of a lower-part side end portion of the plunger, and wherein an inner circumferential surface of the yoke guides the movement of the plunger and the yoke includes a contact member that regulates the movement of the plunger on the inner circumferential surface.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 18, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Naoya Yoshizawa, Kazuhiko Maeda, Takeshi Hayashi
  • Publication number: 20160148738
    Abstract: A solenoid includes: a coil wound around a bobbin; a case section accommodating the coil; a tubular yoke arranged on an inner circumferential portion of the coil; and a plunger arranged on an inner circumferential portion of the yoke, and moving from a start position along an axial direction of the yoke by magnetic attraction force generated in the yoke, wherein a diameter increasing portion whose diameter is increased from the start position toward a lower part in the axial direction is formed on an outer circumferential surface of the yoke, and the diameter increasing portion overlaps at least a part of a moving region of a lower-part side end portion of the plunger, and wherein an inner circumferential surface of the yoke guides the movement of the plunger and the yoke includes a contact member that regulates the movement of the plunger on the inner circumferential surface.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Naoya YOSHIZAWA, Kazuhiko MAEDA, Takeshi HAYASHI
  • Patent number: 9254868
    Abstract: A displacement detection apparatus for a linear motion mechanism includes a nut member, a rod including elongate grooves elongating in an axial direction of the rod and a through hole, a permanent magnet disposed parallel to the rod, a magnet block made of synthetic resin and including a retaining portion holding the permanent magnet, a pair of leg portions extending from ends of the retaining portion that are spaced apart, and a nut made of metal insert-molded at an intermediate position between the pair of leg portions, and a displacement sensor disposed opposing to the permanent magnet. The pair of leg portions and the nut of the magnet block are disposed in the elongate groove of the rod and the magnet block is fixed to the rod by a bolt screwed to the nut, the bolt penetrating through the through hole extending through the rod.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 9, 2016
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Shinsuke Ando, Naoya Yoshizawa, Shimpei Fujii, Yusuke Akagi
  • Publication number: 20140353071
    Abstract: A displacement detection apparatus for a linear motion mechanism includes a nut member, a rod including elongate grooves elongating in an axial direction of the rod and a through hole, a permanent magnet disposed parallel to the rod, a magnet block made of synthetic resin and including a retaining portion holding the permanent magnet, a pair of leg portions extending from ends of the retaining portion that are spaced apart, and a nut made of metal insert-molded at an intermediate position between the pair of leg portions, and a displacement sensor disposed opposing to the permanent magnet. The pair of leg portions and the nut of the magnet block are disposed in the elongate groove of the rod and the magnet block is fixed to the rod by a bolt screwed to the nut, the bolt penetrating through the through hole extending through the rod.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Shinsuke Ando, Naoya Yoshizawa, Shimpei Fujii, Yusuke Akagi