Patents Assigned to NHK Spring Co., Ltd.
  • Patent number: 10899188
    Abstract: A coil spring includes a wire shaped to be helical, and is compressed between an upper spring seat and a lower spring seat. The coil spring includes an upper portion and a lower portion. A positive pitch winding end portion is formed on the upper portion of the coil spring. A terminal-point-strong-abutting-portion is formed at a distal end of the winding end portion. The terminal-point-strong-abutting-portion is in contact with the upper spring seat at one point at a position deviated to an inner side of a vehicle with respect to a coil central axis. On the lower portion of the coil spring, an end turn portion which contacts the lower spring seat is formed.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: January 26, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Ken Okura, Shuji Ohmura, Shusaku Hayashi
  • Publication number: 20210017084
    Abstract: A thermally conductive composite particle, including: a core portion including an inorganic particle; and a shell portion including a nitride particle and covering the core portion, is provided. The thermally conductive composite particle is a sintered body.
    Type: Application
    Filed: September 26, 2020
    Publication date: January 21, 2021
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kohei SUZUKI, Toshiaki MARUICHI
  • Patent number: 10889878
    Abstract: An alloy material includes: a composition, in a composition range of a ternary alloy of silver (Ag), palladium (Pd), and copper (Cu), the composition containing 20 to 30 wt % of Ag, 35 to 55 wt % of Pd, and 20 to 40 wt % of Cu. The composition as a base is added with tin (Sn) in a range of 0.5 to 2.5 wt %, further added with any one of or a combination of cobalt (Co), chromium (Cr), and zinc (Zn) in a range of 0.1 to 1.0 wt %, and added with 0.01 to 0.1 wt % of either one of or a combination of iridium (Ir) and ruthenium (Ru).
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 12, 2021
    Assignees: NHK Spring Co., Ltd., YAMAKIN CO., LTD.
    Inventors: Toshio Kazama, Yoshihisa Tani, Satoshi Shoji, Teruo Anraku, Masayuki Ainoya, Tomohiro Kubota, Kotaro Toyotake, Hitoshi Abe
  • Patent number: 10851804
    Abstract: An accumulator according to an embodiment includes, for example, a base member; a cover member welded to the base member, the cover member and the base member defining a pressure chamber therebetween; a stretchable partition member that partitions the pressure chamber into an inner chamber and an outer chamber; and a labyrinth structure provided in at least one of a first part of the base member and a second part of the cover member. The first part is located closer to the outer chamber than a welded part between the base member and the cover member. The second part is located closer to the outer chamber than the welded part, facing the first part.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: December 1, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hideki Yamamoto, Hiroshi Mizukami
  • Patent number: 10850589
    Abstract: A stabilizer includes: a stabilizer bar made of a pipe material; and a stabilizer link that couples the stabilizer bar and a suspension device. The stabilizer link includes a ball stud which includes a shaft portion inserted to and fixed in an opening end of the stabilizer bar and a ball portion formed at a leading end of the shaft portion, a housing which rotatably supports the ball portion, and a flexible dust cover which includes one end attached on the housing so as to be unmovable in a ball stud axis direction and the other end attached on at least either of the shaft portion and the stabilizer bar and which seals a space between the housing and the ball stud.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 1, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Shuji Ohmura, Shigeru Kuroda
  • Patent number: 10837095
    Abstract: A hollow stabilizer production method of a hollow stabilizer used for a vehicle includes attaching a first mounting member and a second mounting member respectively to one end and another end of a formed steel tube and heating the steel tube. The method includes feeding a carburizing gas into the interior space of the heated steel tube through the first mounting member, and collecting the air and/or the surplus carburizing gas from the interior space through the second mounting member to thereby carburize the steel tube inner surface. The method includes rapidly cooling the heated steel tube to thereby quench the steel tube continuously from the carburization.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 17, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Morimichi Kai, Akira Tange
  • Patent number: 10836013
    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: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Senri Moriyama, Satoshi Akiyama, Masaya Komazaki, Go Nagayasu, Hideki Okada, Daisuke Yokota
  • Patent number: 10836228
    Abstract: This ball joint is provided with: a ball stud, one end being fastened to a suspension device/stabilizer, and the other end having a ball part; a housing that rotatably supports the ball part of the ball stud; and a ball seat provided so as to be interposed between the housing and the ball part, the ball seat having an inner spherical part for accommodating the ball part. The ball seat is provided to the housing by insert injection molding. The inside diameter dimension of the inner spherical part formed by separate injection molding is set to a dimension corresponding to the anticipated amount of molding shrinkage of the resin during the insert injection molding.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 17, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventor: Shigeru Kuroda
  • Patent number: 10829008
    Abstract: A vehicle seat that includes: a cushion frame rear portion that is rotatable around a rear portion shaft, whose axial direction is a seat transverse direction, with respect to a vehicle body floor portion; a cushion frame front portion that is connected to the cushion frame rear portion so as to be rotatable around a center fold shaft whose axial direction is the seat transverse direction and that is positioned further toward a seat front side than the rear portion shaft; a seatback frame that stands erect from a rear end side of the cushion frame rear portion; and a driving mechanism that moves the cushion frame front portion and the cushion frame rear portion relatively in a seat vertical direction between a non-reclining state and a reclining state, in which the cushion frame rear portion tilts downward and rearward with respect to the cushion frame front portion.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 10, 2020
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yoshitaka Sasaki, Akira Honma, Kenichi Katsube, Daisuke Tanaka, Shunichiro Osa, Takuma Oki
  • Patent number: 10828845
    Abstract: A wire material for an elastic member includes: inner circumferential-side reinforced fibers that are wound in a spiral form; outer circumferential-side reinforced fibers that are provided on an outer circumference of the inner circumferential-side reinforced fibers; and thermosetting resin that is provided in at least a part of the inner circumferential-side reinforced fibers and the outer circumferential-side reinforced fibers and firmly fixes the reinforced fibers with each other. An angle formed by a winding direction of the inner circumferential-side reinforced fibers and a center axis of the winding is 70° to 110°. A winding direction of the outer circumferential-side reinforced fibers with respect to a center axis of the winding is along a direction of a tensile load applied to the wire material for the elastic member in accordance with a load applying torsional stress to the wire material for the elastic member as an externally applied load.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 10, 2020
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takamichi Sano, Kazuhiko Konomi, Satoshi Okabe, Masaru Imamura
  • Patent number: 10807215
    Abstract: A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 20, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hideki Okada, Daisuke Yokota, Senri Moriyama, Satoshi Akiyama, Masaya Komazaki, Go Nagayasu
  • Patent number: 10808784
    Abstract: The coil spring according to the present invention is a coil spring that is formed by spirally winding a wire rod and that includes a core that is elastically deformable and a reinforced fiber layer including reinforcing fibers wound around an outer circumference of the core and a thermoset resin that firmly adheres the reinforcing fibers to one another, wherein, in at least a part of a surface layer of the reinforced fiber layer, a content percentage of the reinforcing fibers on an inner circumferential side of the coil spring is larger than a content percentage of the reinforcing fibers on an outer circumferential side of the coil spring.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 20, 2020
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yoshiki Ono, Kazuhiko Konomi, Takamichi Sano, Masaru Imamura, Toshiaki Maruichi
  • Patent number: 10792683
    Abstract: A paint spraying apparatus includes a supporting structure, a lower nozzle unit, and an upper nozzle unit. The lower nozzle unit includes lower flexible tubes and nozzles, and ejects powder paint toward an eye portion on a lower side of a stabilizer. The upper nozzle unit includes a first frame and a second frame. First flexible tubes are arranged on the first frame. Second flexible tubes are arranged on the second frame. The upper nozzles eject the powder paint toward an eye portion on an upper side of the stabilizer.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 6, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Yasuharu Sakurai, Yoshihiro Koshita, Akifumi Otani
  • Patent number: 10794455
    Abstract: A tensioner includes a power spring, and a backup member being in contact with the power spring and supporting the power spring by acting an urging force in a direction opposite to a radial shift of the power spring in a direction in which the power spring is wound. The power spring is unwound in a condition in which an inter-plate frictional force of the power spring is small in a case where an urging force acting from a power spring to a tension member is greater than a load acting from the tensioner arm to the power spring and the power spring is wound in a condition in which the inter-plate frictional force of the power spring is large in a case where the urging force acting from the power spring to the tension member is smaller than the load acting from the tension member to the power spring.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 6, 2020
    Assignees: DAIDO KOGYO CO., LTD., NHK SPRING CO., LTD.
    Inventors: Hideaki Seki, Yoshio Yamada, Takao Kobayashi, Kazuhito Hiraoka, Shuji Takahashi
  • Publication number: 20200298286
    Abstract: A nozzle cleaning apparatus has one cleaning liquid outlet to which a nozzle is attached, and the other cleaning liquid outlet to which a cleaning attachment is attached. The cleaning attachment includes a nozzle cover, and a cleaning holder attached to the nozzle cover. A cleaning chamber is formed in the nozzle cover. A cleaning liquid inflow chamber, an outer cleaning liquid ejection port, and a cleaning liquid discharge hole are formed in the cleaning holder. A cleaning liquid ejected in a first direction from the nozzle and a cleaning liquid ejected in a second direction from the outer cleaning liquid ejection portion toward the nozzle collide with each other near discharge portions inside the cleaning chamber.
    Type: Application
    Filed: February 3, 2020
    Publication date: September 24, 2020
    Applicant: NHK SPRING CO., LTD.
    Inventors: Shohji KARAKI, Mitsuo URANO, Tomoya OSUMI, Shinpei KAKIUCHI
  • Patent number: 10777223
    Abstract: The present invention provides a method of feeding an agent, capable of stabilizing a remaining agent of a feeding part in characteristic and amount just before definitively feeding an agent to each definitive portion. The method includes intermittently moving a feeding part to a plurality of definitive portions defined on a structural object to definitively feed a flowable agent with a predetermined amount to each one of the definitive portions. The structural object includes a semi-finished product part with the definitive portions and a frame to be separated from the semi-finished product part. The frame includes a waste portion for the flowable agent. The waste portion has a same form as the definitive portions. The feeding part wastefully feeds the flowable agent to the waste portion with a same amount as the predetermined amount and thereafter starts the intermittently moving for the definitively feeding of the flowable agent.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 15, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Yoshihiro Teramoto, Masaru Inoue, Takeshi Shimoda
  • Patent number: 10773613
    Abstract: In a vehicle seat, a second parallel link mechanism is actuated in order to adjust an vertical position of a seat body with respect to a vehicle body, such that a first parallel link mechanism is moved up or down together with the seat body with respect to the vehicle body. In order to recline a seatback as an integral unit with a seat cushion, the first parallel link mechanism and the second parallel link mechanism are actuated such that an upper link is maintained in a predetermined orientation. The upper link is restricted from rotating relative to the armrest, and so the armrest is also maintained in a predetermined orientation.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 15, 2020
    Assignee: NHK SPRING Co., Ltd.
    Inventors: Takeshi Nakamura, Kenichi Katsube, Shu Kondou, Daisuke Tanaka
  • Patent number: 10767678
    Abstract: A fastening member includes: a first alloy section made of aluminum alloy containing zinc in an amount of 0.005 wt % or more and 6.5 wt % or less and containing magnesium in an amount of 0.6 wt % or more and 2.0 wt % or less, and provided at a portion being in contact with at least one of the plurality of members; and a second alloy section made of an aluminum alloy containing magnesium in an amount of greater than 0.2 wt % and 2.3 wt % or less and containing copper in an amount of greater than 1.0 wt % and 8.0 wt % or less, and bonded to the first alloy section.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 8, 2020
    Assignee: NHK Spring Co., Ltd.
    Inventors: Toshio Kazama, Noriyoshi Kaneda, Shun Hirai
  • Publication number: 20200279579
    Abstract: A flexure is provided along a first surface of a load beam. The flexure includes a tongue on which a slider is mounted, a first outrigger arm, and a second outrigger arm. A first damping member is provided in a first outrigger root portion. The first damping member adheres to both the load beam and the first outrigger root portion in a first aperture portion including a first aperture formed in the load beam. A second damping member is provided in a second outrigger root portion. The second damping member adheres to both the load beam and the second outrigger root portion in a second aperture portion including a second aperture.
    Type: Application
    Filed: January 31, 2020
    Publication date: September 3, 2020
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hiroshi NAKAYAMA, Masao HANYA, Tatsuhiko NISHIDA
  • Patent number: 10759250
    Abstract: A stabilizer device includes a stabilizer extending in a width direction of a vehicle, and a bush unit. The bush unit includes a bracket formed of metal, and a rubber bush. The rubber bush is formed of a plurality of bush pieces, and is fixed to the stabilizer by an adhesion layer. The adhesion layer is constituted of an adhesion member including an adhesive applied to inner surfaces of the bush pieces. A bonding display portion formed of a part of the adhesion member is provided at a corner on an end face of the bush piece.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 1, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Jun Umeno, Yukihiro Seki, Toru Itihara, Hiroshi Mizukami