Patents Assigned to NHK Spring Co., Ltd.
  • Patent number: 10486561
    Abstract: A lock release lever attachment structure includes: a case that includes a case body, an upper portion of which opens as a first opening, and a first flange, a slit being formed to penetrate through at least a portion of the first flange in a seat up-down direction along a peripheral edge of the first opening; an operation lever that releases a locked state of a seatback; and a cover that includes a cover body, an upper portion of which opens as a second opening, and a second flange, the first and second openings being placed in communication by inserting the cover body into the case body through the first opening and fixing the cover body inside the case body, and an edge of a covering material that covers a surface of the seatback being inserted into the slit and gripped by the first and the second flanges.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: November 26, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Jun Shirai, Koji Matsuyama
  • Patent number: 10471221
    Abstract: A needle attachment and detachment assist device includes a frame body, a syringe guide jig, and a needle guide jig. A guide hole is formed in the syringe guide jig. In the needle guide jig, a needle insertion hole is formed on a central axis of the guide hole. The needle insertion hole includes a center hole portion and a rib guide groove. When a syringe is inserted into the guide hole, and a needle member is further inserted into the needle insertion hole, rotation prevention of the needle member is achieved. In this state, when the syringe is rotated in a first direction, the needle member can be clamped to a thread portion of the syringe. When the syringe is rotated in a second direction, the needle member can be loosened.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 12, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventor: Yasumasa Tsukamoto
  • Patent number: 10475476
    Abstract: A flexure of a hard disk drive includes a metal base, and a conductive member formed on the metal base. The conductive member includes an insulating layer and a conductive layer. The insulating layer has a flat portion and an elevated portion projected from the flat portion. The conductive layer has a connecting terminal formed along the side surface.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 12, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventor: Yukie Yamada
  • Patent number: 10471858
    Abstract: A vehicle seat that includes: a support bracket that is provided at a floor of a vehicle; a rotation bracket that is coupled to the support bracket; a lock member that is provided at the floor; a lower rail being fixed to the rotation bracket and being locked by the lock member; an upper rail that is attached to the lower rail so as to be capable of sliding in a vehicle front-rear direction; a seat body that is fixed to the upper rail; a rotation force application member that applies rotation force to the rotation bracket such that the lower rail rotates in a direction in which the seat body springs up; and a speed reduction member that reduces a rotation speed of the rotation bracket in a case in which the seat body springs up.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: November 12, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Tetsuya Sasaki, Yukihiro Hakuta, Shigeo Fujii, Tomoyuki Sato, Daichi Takigawa
  • Patent number: 10462850
    Abstract: A method of manufacturing a ceramic sintered body, includes: a film forming step of forming, on a surface of a heat-resistant metal material, a metal coating film made of a metal material having a standard free energy of formation of metal carbides lower than that of the heat-resistant metal material; a molding step of disposing the heat-resistant metal material provided with the coating film in the film forming step at a predetermined position in powder that serves as a starting material of a ceramic base, and molding a ceramic green body by press-molding the powder; and a sintering step of generating a ceramic sintered body by sintering the ceramic green body molded in the molding step.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 29, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Satoshi Hirano, Toshihiro Tachikawa, Junichi Miyahara, Toshihiko Hanamachi
  • Publication number: 20190316230
    Abstract: An aluminum alloy contains 0.7% to 1.8% of silicon, 0.5% to 2.1% of copper, 0.4% to 1.8% of manganese, 0.6% to 1.6% of magnesium, and 0.1% to 0.7% of zinc in terms of mass ratio and the balance aluminum with inevitable impurities.
    Type: Application
    Filed: February 16, 2017
    Publication date: October 17, 2019
    Applicants: NHK SPRING CO., LTD., TOPURA CO., LTD.
    Inventors: Noriyoshi KANEDA, Takeshi SUZUKI, Kouhei MIYAMOTO, Naoki HORIUCHI
  • Patent number: 10442269
    Abstract: A hollow stabilizer has a tubular shape and is provided with a torsion section that is provided to a vehicle and that extends in the vehicle width direction; an arm section that extends in the front-back direction of the vehicle; and bent sections that connect the torsion section and the arm section. The hardness of the outer surface of the bent inner sides of the bent sections of the hollow stabilizer is 70% or more with respect to the hardness of the outer surface of the arm section.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 15, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Patent number: 10435792
    Abstract: A laminate includes: a substrate; and a metallic coating that is formed from copper powder containing 0.002% to 0.020% by weight of phosphorus and having been subjected to reduction treatment, the metallic coating being deposited on the substrate.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 8, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Masaru Takimoto, Yuichiro Yamauchi, Satoshi Hirano, Naoya Aikawa
  • Patent number: 10431245
    Abstract: A piezoelectric element easily and surely forms polymer coatings on peripheral end faces of the piezoelectric element without deteriorating a yield of the piezoelectric element. The piezoelectric element is manufactured by a method including steps of cutting a piezoelectric element out from a base piezoelectric material plate so that peripheral end faces are formed to define a peripheral shape of the piezoelectric element, and forming polymer coatings on at least objective areas of the peripheral end faces of the piezoelectric element by vapor deposition polymerization.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 1, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventor: Akira Nojima
  • Patent number: 10414293
    Abstract: A vehicle seat including a seat cushion including a cushion body that supports buttocks of an occupant, and cushion side portions disposed on both seat width direction sides of the cushion body, a seatback including a back body that supports a back of the occupant, and back side portions disposed on both seat width direction sides of the back body, and an adjustment mechanism including at least one of a cushion adjustment mechanism that on actuation moves the cushion body in a seat up-down direction with respect to the cushion side portions and pivots the cushion body about an axis running along the seat width direction, or a back adjustment mechanism that on actuation moves the back body in a seat front-rear direction with respect to the back side portions and pivots the back body about an axis running along the seat width direction.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 17, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yoshitaka Sasaki, Akira Honma, Donhyon Kim, Daisuke Tanaka
  • Patent number: 10415110
    Abstract: A method of manufacturing a hollow stabilizer includes a forming step of subjecting an element pipe to a bending process, to form a product shape including bent portions, and a quenching step of quenching the element pipe subjected to the bending process. In the quenching step, a cooling process is performed by immersing the element pipe made of steel in coolant and by spraying the coolant to an outer surface of the bent portion.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: September 17, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Patent number: 10415633
    Abstract: A stabilizer link of the present invention includes connecting parts that has a housing which supports a ball stud to be connected to the first or second structure so as to be swingable and rotatable, wherein the ball stud has a stud part extending from a spherical part and the housing houses a support member to support a spherical part of the ball stud in a spherical space so as to be slidable, wherein the support member includes: an opening where the spherical space is open for the stud part; a lubricant receiving part in a concave shape that faces the opening; and a wall surface that forms the spherical space for the spherical part to slide thereon and has recessed grooves formed on both sides or one side of a portion of the wall surface having the maximum inner radius about the central axis of the spherical space.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: September 17, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventor: Shigeru Kuroda
  • Patent number: 10411386
    Abstract: A conductive connection terminal is extensible and compressible in a longitudinal direction, and includes: a first contact member including a first tip portion configured to contact with one electrode of a contact target, and a first base end portion; a second contact member including a second tip portion configured to contact with another electrode of the contact target, and a plurality of tongue parts configured to contact with the first base end portion; an elastic member configured to extend and compress the first contact member and the second contact member in the longitudinal direction; and a load applying unit configured to apply a load to the tongue parts in a direction bringing the tongue parts into contact with an outer circumference of the first base end portion.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 10, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Toshio Kazama, Kazuya Souma
  • Publication number: 20190259414
    Abstract: A correction method includes a correction process for correcting warping of a plate-like workpiece including a frame portion and a plurality of flexure elements formed within the frame portion. The correction process includes arranging a first clean sheet on an elastic mat having a flat upper surface, supplying the plate-like workpiece on the first clean sheet, overlaying a second clean sheet from above the first clean sheet and the plate-like workpiece, lowering a pressure roller toward the elastic mat from above the second clean sheet, sandwiching the plate-like workpiece between the elastic mat and the pressure roller, moving the pressure roller along an upper surface of the elastic mat while having the plate-like workpiece sandwiched between the elastic mat and the pressure roller, and taking out the plate-like workpiece from the first clean sheet.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hiroyoshi UETAKE, Yukihiro HAYASHI
  • Patent number: 10388309
    Abstract: A circuit member includes a metal base, an insulating layer, a conductor, and a cover layer. A terminal portion includes a thick portion formed on a side part of the insulating layer, and an extension portion, which is a part of the conductor, overlapping the thick portion. The extension portion includes a side pad portion along a side surface of the thick portion. A side surface of the side pad portion constitutes a side pad extending in a thickness direction of the conductor. A length of the side pad in a thickness direction is greater than a thickness of the conductor. A side pad insulating portion, which is formed of a part of the thick portion, is formed between a distal end of the metal base and the side pad portion.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 20, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventor: Yukie Yamada
  • Patent number: 10381028
    Abstract: A circuit member includes a metal base, an insulating layer, a conductor, and a cover layer. A termial portion of the circuit member includes a thick portion formed at a part of the insulating layer, a conductor convex portion which is a part of the conductor, and overlaps the thick portion, and a conductor extending portion. By the conductor convex portion and the conductor extending portion, a stepped side pad is formed. The stepped side gad includes a first surface along the conductor extending portion, and a second surface which rises in a thickness direction of the conductor extending portion. The stepped side pad and an element are connected by a conductive member.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: August 13, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventor: Yukie Yamada
  • Publication number: 20190232462
    Abstract: A coil spring includes a helically formed wire having end turn portions at ends thereof, a plurality of first rough surfaces, each including first shot peening indentations formed on a part of a surface of the end turn portions, and a second rough surface including second shot peening indentations formed on the entire surface of the wire except for the first rough surface. The second rough surface has a surface roughness different from that of the first rough surface.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Applicant: NHK SPRING CO., LTD.
    Inventors: Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU, Hideki OKADA, Daisuke YOKOTA
  • Patent number: 10358012
    Abstract: A stabilizer including: a main body for generating an elastic restoring force; and connecting portions formed on both ends of the main body and respectively connected to left and right suspension devices. Hardness of the connecting portions is lower than that of the main body. A method for manufacturing the stabilizer includes, in order, an entire body heat treatment process for heat treating an entire stabilizer and increasing hardness of the entire stabilizer, and a connecting portion softening process for heating the connecting portions and reducing the hardness of the connecting portions. The method for manufacturing the stabilizer thereby increases hardness of the main body and reduces the hardness of the connecting portions lower than that of the main body.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 23, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventor: Tatsuya Nishimura
  • Patent number: 10358008
    Abstract: A suspension coil spring includes a lower end turn portion, an upper end turn portion, and a helical effective portion formed between the end turn portions. The lower end turn portion includes a first portion which contacts a lower spring seat irrespective of a load, and a second portion which contacts the lower spring seat or is separated from the same according to the load. The wire diameter of the second portion is greater than that of the first portion and an average wire diameter of the effective portion. The upper end turn portion includes a third portion which contacts an upper spring seat, and a fourth portion. The wire diameter of the fourth portion is greater that of the third portion and the average wire diameter of the effective portion.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 23, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Kenji Yamamotoya, Hideto Enomoto, Ken Takahashi, Toshiaki Sato, Mitsuhiro Sugiyama, Yoshio Kobayashi, Taichi Inage, Tomotake Kato, Akihiko Nishikawa, Masahiro Umezawa, Michihiko Ayada, Suguru Kajigaya
  • Patent number: 10359090
    Abstract: A compression coil spring having high durability can be provided by using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material made of C: 0.45 to 0.85 mass %, Si: 0.15 to 2.5 mass %, Mn: 0.3 to 1.0 mass %, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: July 23, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Kazuya Ikai, Tohru Shiraishi, Yuichiro Ono, Yoshiki Ono