Patents Assigned to NHK Spring Co., Ltd.
  • Patent number: 11236793
    Abstract: The disc spring is a disc spring for being fitted on a rotary shaft and includes: an annular body portion; a claw portion protruding inward in a radial direction from an inner peripheral edge of the body portion, wherein the claw portion gradually extends toward one side in an axial direction as it goes inward in the radial direction, and at least a tip part of the claw portion is provided with a hole.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: February 1, 2022
    Assignee: NHK SPRING CO., LTD.
    Inventor: Hideaki Sakai
  • Publication number: 20220026151
    Abstract: A plate includes: a main body; a flow channel provided in the main body and configured to flow inert gas therein; a cover configured to cover a surface of the main body where the flow channel is formed; a buried member buried in an opening of the flow channel, the buried member including a buried portion fixed to the flow channel and made of dense ceramic, and a flow portion held by the buried portion and configured to let the inert gas flow from an inside to an outside of the main body, at least a part of the flow portion being made of porous ceramic; and a plurality of through holes provided in the flow portion. A ratio of a diameter of an outer circumference of the buried portion to a diameter of a smallest circle among circles including all of the through holes is 1.2 or higher.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 27, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Yoshihito Araki, Shuhei Morota, Toshihiko Hanamachi, Hibiki Yokoyama
  • Patent number: 11230252
    Abstract: A side airbag apparatus has an inflatable side airbag, an inflator which supplies the side airbag with gas, a base member in which the folded side airbag and inflator are accommodated, and a harness connected to the inflator to supply it with power for ignition. The base member has a backside surface which faces an inside of the seat, a frontside surface, a protrusion portion formed on the frontside surface, and a harness supporting portion below the protrusion portion which fixes a portion of the harness so as to restrict lateral and vertical movements of the harness relative to the frontside surface.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 25, 2022
    Assignees: NHK SPRING CO., LTD., SUBARU CORPORATION
    Inventors: Taisuke Matsuzaki, Hideki Hasumi, Youhei Kanbara, Yuuji Matsubara
  • Publication number: 20220018877
    Abstract: A probe unit includes: a first contact probe configured to come in contact with a signal electrode; a second contact probe configured to come in contact with a ground electrode; a probe holder including a first holder hole through which the first contact probe passes, and a second holder hole through which the second contact probe passes; and a conductive floating member including a first through hole to which the first contact probe is inserted and the signal electrode is inserted, and a second through hole to which the second contact probe is inserted and the ground electrode is inserted. The probe holder is configured such that at least an inner circumferential surface of the first holder hole has an insulating property, and the probe unit has a coaxial structure in which central axes of the first contact probe and the first through hole are aligned with each other.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 20, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Tsuyoshi Inuma, Shuji Takahashi
  • Publication number: 20220013150
    Abstract: A suspension includes a load beam with first and second openings, a flexure including first and second outriggers, and first and second damper members. The first damper member is attached to the load beam and part of the first outrigger that overlaps the first opening of the load beam. The second damper member is attached to the load beam and part of the second outrigger that overlaps the second opening of the load beam. The first opening includes a region which is not covered by the first damper member, and the second opening includes a region which is not covered by the second damper member.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hiroshi NAKAYAMA, Masao HANYA, Tatsuhiko NISHIDA
  • Publication number: 20220011345
    Abstract: A probe unit includes: first contact probes each coming into contact with a target electrode on one end side in a longitudinal direction; a second contact probe connected to an external ground; a signal pipe disposed around each first contact probes; a ground member provided around each signal pipe and configured to form an air layer with the signal pipe; a probe holder including a plate-shaped first and second members; a first wiring part provided at least on a front surface of the first member and electrically connected to the second contact probe; a second wiring part provided at least on a front surface of the second member and electrically connected to the second contact probe; a first conductive unit configured to electrically connect the first wiring part and the ground member; and a second conductive unit configured to electrically connect the second wiring part and the ground member.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 13, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Tsuyoshi Inuma, Kazuya Soma
  • Publication number: 20220009022
    Abstract: A joining method of joins a main body and a cover, the main body being a flat plate and made of aluminum or an aluminum alloy and including a passage through which a medium for promoting heat exchange is circulated, and the cover being a flat plate and made of aluminum or an aluminum alloy and configured to cover the passage of the main body. The method includes: a covering step of covering the main body with the cover; and a diffusion bonding step of joining the main body and the cover by diffusion bonding under a condition in which a joining temperature is 500° C. or higher and 640° C. or lower, and a joining surface pressure is 0.7 MPa or higher. Each of a joining surface of the main body and a joining surface of the cover has a flatness of 0.2 or less.
    Type: Application
    Filed: December 13, 2019
    Publication date: January 13, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Toshihiko Hanamachi, Daisuke Fujino, Masaru Takimoto, Yoshihito Araki, Masahiro Fujii
  • Patent number: 11219970
    Abstract: As first-time laser irradiation is performed on a workpiece, an initial nugget is formed. By emitting a laser beam for the second time at the initial nugget, a diameter of a back-side nugget portion is increased. A nugget includes a front-side nugget portion formed in a first plate, the back-side nugget portion formed in a second plate, and an annular flat surface portion. The flat surface portion is along a boundary portion between the first plate and the second plate. In a thicknesswise cross section of the second plate, a tilt angle of a peripheral surface of the back-side nugget portion is increased as a thicknesswise position of the peripheral surface approximates to a rear face of the second plate.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 11, 2022
    Assignee: NHK SPRING CO., LTD.
    Inventor: Naoki Tanaka
  • Publication number: 20210403702
    Abstract: According to an embodiment, a thermosetting epoxy resin composition including an epoxy resin, an aromatic amine compound, a boron-phosphorus complex, and a phosphorus compound is provided. The aromatic amine compound is represented by the following general formula (1) (where R1 represents an alkyl group, m represents an integer of 2 or more, n represents an integer of 0 or more, and m and n satisfy m+n?6, and when n is an integer of 2 or more, a plurality of R1 may be the same as or different from each other).
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Applicant: NHK SPRING CO., LTD.
    Inventors: Katsumi Mizuno, Asuka Kawasaki
  • Patent number: 11211085
    Abstract: A suspension for a disk device comprises a load beam, a flexure and a damper member. The flexure overlaps the load beam, and comprises a tongue on which a slider is mounted and an outrigger connected to the tongue. The damper member is attached to the load beam. The outrigger comprises an arm opposing the load beam, and a folded portion extending from the arm and folded back in a thickness direction of the arm. Further, the folded portion is attached to the damper member.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 28, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventor: Yukie Yamada
  • Patent number: 11201040
    Abstract: A substrate supporting unit is provided. The substrate supporting unit possesses a shaft, a first heater, and a stage. The first heater is located in the shaft and is configured to heat an upper portion of the shaft. The stage is located over the shaft and includes a first plate, a second plate over the first plate, and a second heater between the first plate and the second plate.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: December 14, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Go Takahara, Toshihiko Hanamachi, Arata Tatsumi
  • Publication number: 20210383829
    Abstract: A load beam includes a pair of flange bending parts including first bending parts, and a second bending part extending in a width direction. A first cross-section part extends in the width direction of the load beam passing through welding parts. The first cross-section part is warped up toward the flange parts. A second cross-section part extends in the width direction passing through a different position from that of the welding parts. The second cross-section part has a lesser height difference as compared to the first cross-section part. A die is used when bending the second bending part. The die includes a first relief part including a first inclined surface and a second relief part including a second inclined surface in both sides of the supporting surface.
    Type: Application
    Filed: June 1, 2021
    Publication date: December 9, 2021
    Applicant: NHK SPRING CO., LTD.
    Inventors: Sosuke KUREBAYASHI, Yohei MITSUMORI, Naoki IWAMOTO
  • Publication number: 20210362274
    Abstract: A coiling machine includes a laser heating machine configured to irradiate a wire formed into a helical shape with laser light to thereby heat a part of the wire, and cutting components configured to cut a portion of the wire after the irradiation of the laser light is stopped, a temperature of the portion being higher than before irradiated with the laser light.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Applicant: NHK SPRING CO., LTD.
    Inventors: Takuya SATO, Yuichiro YAMAUCHI, Takeshi FURUSE, Ryo TANAKA
  • Patent number: 11179992
    Abstract: The ball joint manufacturing method for manufacturing a ball joint including a ball stud which includes a substantially spherical metal ball section, and a resin housing rotatable accommodating the ball section of the ball stud, includes: a step of forming the housing to cover an outer periphery of the ball section; an induction heating step of subjecting the ball section to induction heating in a state in which the ball section is accommodated in an accommodation section of the housing until the temperature of the ball section reaches a predetermined target temperature; and a cooling step of cooling the ball section which has been subjected to the induction heating, wherein a torque adjustment step including the induction heating step and the cooling step is repeatedly performed.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 23, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventor: Shigeru Kuroda
  • Patent number: 11173810
    Abstract: A seat opening concealment structure is provided including a cover member that covers part of a vehicle seat, and that includes an outer wall including a curved face portion with a circular arc shaped cross-section profile, the outer wall being formed with an opening having an elongated profile along a peripheral direction of the curved face portion, and the outer wall being formed with a larger radius of curvature at an inner face of the curved face portion than a radius of curvature at an outer face of the curved face portion.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: November 16, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Tsuyoshi Matsuzawa, Kenichi Katsube, Daisuke Tanaka
  • Patent number: 11174880
    Abstract: An accumulator includes a pressure vessel and a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable. The pressure vessel includes a first section including a thread portion for fastening the accumulator to a support member and a second section joined to the first section and formed by a single piece including a tool engagement portion capable of engaging with a tool for rotating the accumulator. The first section and the second section are fitted together by mating portions coaxial with the thread portion and the tool engagement portion.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 16, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hiroshi Mizukami, Ippei Iwai, Mieko Yanagida
  • Patent number: 11167616
    Abstract: This stabilizer link includes a metal support bar, and ball joints that are provided at both ends of the support bar. Each ball joint includes a ball stud one end of which is fastened to a suspension device or a stabilizer, and which has a ball part at the other end thereof, and a housing that rotatably supports the ball part of the ball stud. The support bar includes: a body part extending in a nearly linear shape, and reinforcement parts each having a nearly annular shape and each provided at both ends of the body part. The reinforcement parts of the support bar are each embedded in the housing so as to surround the ball part.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 9, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventor: Shigeru Kuroda
  • Patent number: 11167675
    Abstract: A vehicle seat includes a seat framework configured including a first frame and a second frame that are capable of supporting an occupant, and a link including a first swing shaft via which the first frame is coupled to one end side of the link and a second swing shaft via which the second frame is coupled to another end side of the link; a first cover that is attached to a back face of the first frame on an opposite side from a front face configured to support the occupant, that covers a back face side of the first frame; and a second cover that is attached to a back face of the second frame on an opposite side from a front face configured to support the occupant, that covers a back face side of the second frame.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: November 9, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Tsuyoshi Matsuzawa, Kenichi Katsube, Daisuke Tanaka
  • Patent number: 11170822
    Abstract: A suspension includes a load beam, a flexure including first and second outriggers, and first and second damper members. The first outrigger is formed to oppose the first surface and across the first opening. The second outrigger is formed to oppose the first surface and across the second opening. The first damper member is attached to the first outrigger at the first opening and the first surface. The second damper member is attached to the second outrigger at the second opening and the first surface. An edge portion of the first opening and the first damper member are spaced apart and an edge portion of the second opening and the second damper member are spaced apart.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: November 9, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hiroshi Nakayama, Masao Hanya, Tatsuhiko Nishida
  • Patent number: 11167615
    Abstract: A hollow stabilizer includes a curved part having eight regions defined in a cross section. A first region includes a 90° first part when the center of the inside of the curve is taken to be at 0° and the center of the outside of the curve is taken to be at 180°. A third region includes a 0° third part. A fifth region includes a 270° fifth part. A seventh region includes a 180° seventh part. The radii of curvature of the respective outer surfaces of the third part and the seventh part are larger and the radii of curvature of the respective outer surfaces of the second part and the sixth part are smaller than the radii of curvature of the respective outer surfaces of the fourth part and the fifth part.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 9, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Norihiro Kawakami, Yurika Okudaira, Yuushi Nogami