公开(公告)号：US20010008475A1

公开(公告)日：2001-07-19

申请号：US09793410

申请日：2001-02-26

Applicant: NHK Spring Co., Ltd.

Inventor： Yasuji Takagi ,  Koji Uozumi ,  Masao Hanya ,  Noriyuki Saito

IPC: G11B005/48 ,  G11B021/16

CPC classification number: G11B5/4826 ,  G11B5/4813 ,  G11B5/4833 ,  Y10T29/49025 ,  Y10T29/49027 ,  Y10T29/49032 ,  Y10T29/49121 ,  Y10T29/49798

Abstract: A suspension for disc drive comprises a base plate, a load beam attached to the base plate, and a flexure attached to the load beam. The load beam includes a rigid body portion, formed of a thick plate independent of the base plate, and a spring portion, formed of a spring member in the form of a thin sheet independent of the rigid body portion. The spring member connects the rigid body portion and the base plate. The spring member is thinner than the rigid body portion and has a lower spring constant. The spring portion is more flexible than the rigid body portion.

Abstract translation: 用于盘驱动器的悬架包括基板，附接到基板的负载梁和附接到负载梁的挠曲件。 负载梁包括由独立于基板的厚板形成的刚体部分和由独立于刚体部分的薄片形式的弹簧部件形成的弹簧部分。 弹簧构件连接刚体部分和基板。 弹簧构件比刚体部分薄，并具有较低的弹簧常数。 弹簧部分比刚体部分更具柔性。

公开(公告)号：US3903651A

公开(公告)日：1975-09-09

申请号：US51666174

申请日：1974-10-21

Applicant: NHK SPRING CO LTD

Inventor： SUZUKI SHIGEKAZU ,  SHIBATA MASAHARU ,  KISHI HIROTAKE

IPC: B24B7/16 ,  B24B53/02 ,  B24B49/18

CPC classification number: B24B53/02 ,  B24B7/167

Abstract: A grinding machine has a grinding wheel mounted on one side of a straight passageway and adapted to grind the end of workpieces, such as coil springs, continuously fed on a carrier. The grinding machine further has a position setting mechanism for setting the position of the grinding wheel relative to the workpiece and a dressing mechanism for dressing the grinding surface of the grinding wheel. A speed reducer equipped reversible motor is employed for moving a position setting element of the position setting mechanism, or a dressing element of the dressing mechanism, in a direction substantially perpendicular to the grinding surface of the grinding wheel, while an air cylinder is employed for moving the position setting element, or the dressing element, in a direction parallel to the grinding surface of the grinding wheel.

Abstract translation: 研磨机具有安装在直通路的一侧上的砂轮，并且适于研磨连续地供给在载体上的诸如螺旋弹簧的工件的端部。 研磨机还具有用于设定砂轮相对于工件的位置的位置设定机构和用于修整砂轮的研磨面的修整机构。 在使用气缸的情况下，采用装有减速器的可逆电动机，使位置设定机构的位置设定元件或修整机构的修整元件沿大致垂直于砂轮研磨面的方向移动 在与研磨轮的研磨面平行的方向上移动位置设定元件或修整元件。

公开(公告)号：US3570291A

公开(公告)日：1971-03-16

申请号：US3570291D

申请日：1968-10-07

Applicant: NHK SPRING CO LTD

Inventor： SHIGUMA HEIJIRO

IPC: B21F3/04

CPC classification number: B21F23/00 ,  B21F3/04 ,  B21F35/02

Abstract: A CIRCULAR SECTION SPRING STEEL WIRE IS WOUND AROUND A MANDREL IN SUCH A WAY THAT ADJACENT TURNS OF THE SPRING STEEL WIRE ON THE PERIPHERY OF THE MANDREL ARE IN CLOSE CONTACT WITH EACH OTHER AND ARE SIMULTANEOUSLY TWISTED IN SUCH A DIRECTION OF ROTATION THAT THE SPRING STEEL WIRE TURNS ON THE MANDREL WHEN IT IS WOUND ON THE MANDREL, THE RESULT OF A GREAT AMOUNT OF INITIAL TENSION BEING IMPARTED TO THE EXTENSION SPRING.

公开(公告)号：US20250167642A1

公开(公告)日：2025-05-22

申请号：US18841146

申请日：2022-12-08

Applicant: NHK SPRING CO., LTD.

Inventor： Yohei KAMEDA ,  Yu YODA

IPC: H02K15/025 ,  H02K1/16 ,  H02K3/34 ,  H02K29/03

Abstract: An apparatus for manufacturing a stator that includes a stator core, in which a plurality of core pieces formed of electrical steel sheets are stacked, and coils inserted into slots of the stator core. The apparatus for manufacturing a stator includes a pair of coil holding jigs and an activation mechanism. The coil holding jigs hold, of the coils disposed in the slots, coil ends projecting from both of axial direction end portions of the stator core. The activation mechanism rotates at least one of the pair of coil holding jigs holding the coil ends in a circumferential direction of the stator, in order to form skew in the stator.

公开(公告)号：US20250157486A1

公开(公告)日：2025-05-15

申请号：US19021924

申请日：2025-01-15

Applicant: NHK SPRING CO., LTD.

Inventor： Sosuke KUREBAYASHI ,  Yohei MITSUMORI ,  Naoki IWAMOTO

IPC: G11B5/48

Abstract: A processing method of a work includes: forming flange bending parts at respective side parts of the work, the flange bending parts including first bending parts extending in a length direction of the work; holding a first part of the work in the length direction where the flange bending parts are formed between a die and a pad; and pressing a second part of the work in the length direction in a thickness direction to form a second bending part extending in a width direction of the work between the first part and the second part. The die includes a supporting surface supporting the work, a first relief part including a first inclined surface, and a second relief part including a second inclined surface.

公开(公告)号：US20250088052A1

公开(公告)日：2025-03-13

申请号：US18292630

申请日：2022-04-22

Applicant: NHK SPRING CO., LTD.

Inventor： Youhei KAMEDA ,  Tsuyoshi MATSUDA ,  Yoshikazu MINEDA ,  Soichi NAKAYAMA

IPC: H02K1/28

Abstract: This rotor includes a rotor shaft, a permanent magnet held at an outer periphery of the rotor shaft, and a magnet reinforcement tube formed in a cylindrical shape and covering the permanent magnet from an outer peripheral side of the permanent magnet. The magnet reinforcement tube includes plural layers layered in a radial direction, and has plural fiber sheets wound individually for each layer, and each fiber sheet being solidified with resin.

公开(公告)号：US12247296B2

公开(公告)日：2025-03-11

申请号：US17259609

申请日：2019-07-17

Applicant: NHK Spring Co., Ltd. ,  IZUMI TECHNO INC.

Inventor： Toshihiko Hanamachi ,  Shuhei Morota ,  Go Takahara ,  Masaru Takimoto ,  Hibiki Yokoyama ,  Hiroshi Mitsuda ,  Yoshihito Araki ,  Kengo Ajisawa

IPC: C23C28/04

Abstract: A member for a plasma processing device includes: an aluminum base material; and an oxide film formed on the aluminum base material and having a porous structure, the oxide film including a first oxide film formed on a surface of the aluminum base material, a second oxide film formed on the first oxide film, and a third oxide film formed on the second oxide film, wherein the first oxide film is harder than the second oxide film and the third oxide film, and a hole formed in each of the first oxide film, the second oxide film and the third oxide film is sealed.

公开(公告)号：US12234002B2

公开(公告)日：2025-02-25

申请号：US17616316

申请日：2020-06-05

Applicant: NHK SPRING Co., Ltd.

Inventor： Masato Shirao ,  Marino Akita ,  Takafumi Oshima

IPC: B63H21/21 ,  B63H25/42

Abstract: A ship propulsion device controller controls a plurality of ship propulsion devices disposed on a rear portion of a hull of a ship. The ship includes an operation unit configured to operate the ship propulsion devices. The operation unit is able to be positioned at a first position where the ship propulsion devices do not generate propulsion forces for the ship and a second position where the ship propulsion devices generate propulsion forces for moving the ship in a right direction, a right-forward direction, or a right-backward direction or a third position where the ship propulsion devices generate a propulsion force for moving the ship in a left direction, a left-forward direction, or a left-backward direction. When the operation unit is moved from the first position to the second position and maintained at the second position, the ship propulsion devices generate a clockwise rotating moment in the ship during a first period from a first timing when the operation unit is moved to the second position to a second timing and do not to generate the clockwise rotating moment in the ship during a second period after the second timing.

公开(公告)号：US20250035699A1

公开(公告)日：2025-01-30

申请号：US18911750

申请日：2024-10-10

Applicant: NHK Spring Co., Ltd.

Inventor： Tsuyoshi Inuma ,  Shuji Takahashi ,  Kazuya Soma ,  Takashi Nidaira ,  Yuya Hironaka

IPC: G01R31/28 ,  G01R1/073

Abstract: A probe unit includes: a plurality of first contact probes each coming into contact with an electrode to be contacted on one end side in a longitudinal direction; a second contact probe connected to an external ground; and a probe holder configured to hold the first and second contact probes, the probe holder including a first hollow portion configured to allow the first contact probes to be inserted therethrough and hold the first contact probes, a second hollow portion configured to allow the second contact probe to be inserted therethrough and hold the second contact probe, and a through-hole provided around the first hollow portion, wherein the probe holder includes a conductive portion that constitutes the through-hole and electrically connects the through-hole and the second contact probe.

公开(公告)号：US20250033428A1

公开(公告)日：2025-01-30

申请号：US18716979

申请日：2022-12-22

Applicant: NHK SPRING CO., LTD.

Inventor： Tomoyuki Miyasaka ,  Rintaro Fujimura ,  Norihiro Kawakami

IPC: B60G21/055

Abstract: A stabilizer manufacturing method includes forming a first end and a second end of a stabilizer by processing a tubular member such that each of the first end and the second end has a wall thickness equivalent to a wall thickness of a main body of the stabilizer. The first end and the second end constitutes both ends of the stabilizer, and the first end and the second end are formed by sandwiching and pressing the ends of the tubular member by two pairs of pressing members, facing directions of the two pairs of pressing members being different from each other.