公开(公告)号：US09869378B2

公开(公告)日：2018-01-16

申请号：US14772681

申请日：2014-02-06

Applicant: NHK SPRING CO., LTD.

Inventor： Takao Kobayashi ,  Takahiro Ito ,  Yoshiyuki Takahashi ,  Kazuhito Hiraoka

IPC: F16H7/08 ,  F16H7/22 ,  F01L1/18

CPC classification number: F16H7/08 ,  F01L1/18 ,  F16H2007/0804 ,  F16H2007/081 ,  F16H2007/0893

Abstract: A load-applying device is provided that includes a spiral spring that is formed from a thin strip that is wound multiple times in a spiral shape; a movable body; and a fixing member. The spiral spring is disposed between the movable body and the fixing member, in a manner capable of performing a diameter reduction operation and a diameter expansion operation, and an outer-circumference part of the spiral spring contacting the movable body and the fixing member directly, or indirectly.

公开(公告)号：US09835544B2

公开(公告)日：2017-12-05

申请号：US15060568

申请日：2016-03-03

Applicant: NHK SPRING CO., LTD.

Inventor： Hideki Kashima ,  Yuji Sugita ,  Takeshi Shimoda ,  Tsutomu Fukuda

IPC: G01N19/04 ,  G11B5/455 ,  G11B5/48

CPC classification number: G01N19/04 ,  G11B5/455 ,  G11B5/483 ,  G11B5/4853

Abstract: According to an embodiment, a bonding strength test device measures bonding strength between a flexure of a suspension of a hard disk drive and microactuators mounted on a gimbal of the flexure. The bonding strength test device includes a clamp, dummy, and device body. The clamp fixes the flexure. The dummy is adhered to the microactuators. The probe is engaged in the dummy. The device body measures a tensile load applied to the probe while the probe is pulled toward a direction to be apart from the flexure.

公开(公告)号：US20170306432A1

公开(公告)日：2017-10-26

申请号：US15520616

申请日：2015-10-26

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) ,  NHK SPRING CO., LTD.

Inventor： Takuya KOCHI ,  Hitoshi HATANO ,  Akira TANGE ,  Kiyoshi KURIMOTO ,  Yurika GOTO

IPC: C21D9/08 ,  C22C38/06 ,  C22C38/02 ,  C21D6/00 ,  C22C38/00 ,  C22C38/18 ,  C22C38/04

Abstract: A method for manufacturing steel, by quenching and tempering a seamless pipe for use as a material of a hollow spring, where the seamless pipe including predetermined components is subjected to a heat treatment which is performed to satisfy quenching conditions (1) and tempering conditions (2), (1) quenching conditions: 26,000≦(T1+273)×(log(t1)+20)≦29,000  formula (1) 900° C.≦T1≦1,050° C., 10 seconds≦t1≦1,800 seconds, where T1 is a quenching temperature (° C.), and t1 is a holding time (seconds) in a temperature range of 900° C. or higher, and (2) tempering conditions: 13,000≦(T2+273)×(log(t2)+20)≦15,500  formula (2) T2≦550° C., and t2≦3,600 seconds, where T2 is a tempering temperature (° C.), and t2 is a total time (seconds) from start of heating to completion of cooling.

公开(公告)号：US09786307B2

公开(公告)日：2017-10-10

申请号：US13439466

申请日：2012-04-04

Applicant: Edmund B. Fanslau

Inventor： Edmund B. Fanslau

IPC: G11B5/48 ,  C23C28/00 ,  C23C28/02

CPC classification number: G11B5/483 ,  C23C28/00 ,  C23C28/023 ,  G11B5/4826 ,  G11B5/4853

Abstract: A gimbal assembly of a single or dual stage actuator is provided with gold at a tongue/dimple interface where a dimple of a supporting loadbeam contacts a tongue on the gimbal assembly. Using gold at the tongue/dimple interface greatly reduces the amount of wear particles formed during assembly and operation of the microactuator. The tongue may include a gold coating on the tongue at the tongue/dimple interface, or the tongue may have a hole etched in a stainless steel layer at the tongue/dimple interface to expose a gold layer disposed below the stainless steel layer. The tongue portion of the tongue/dimple interface may also be formed from a gold-coated copper pad with a polymer coating over the gold.

公开(公告)号：US20170286591A1

公开(公告)日：2017-10-05

申请号：US15086009

申请日：2016-03-30

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshio KOBAYASHI ,  Shinichi NISHIZAWA ,  Nobuhisa YASUDA

IPC: G06F17/50 ,  E05F1/12

CPC classification number: G06F17/5086 ,  E05F1/1238 ,  E05Y2201/624 ,  E05Y2900/548 ,  G06F17/5018

Abstract: In a design method of torsion bars used for a trunk lid, free shapes of the torsion bars unhitched from the trunk lid are designed. A center line model of the initial free shape is geometrically and statically created on the basis of a design specification. The center line model of an open shape is created from the free shape model and is deformed into a center line model of a closed modified shape. The center line models of the analyzed closed shape and the target closed shape is compared with each other to obtain a difference torque and a difference vector occurring between corresponding nodes on the center lines. The center line model is so changed as to decrease the difference torque and the difference vector.

公开(公告)号：US09721598B2

公开(公告)日：2017-08-01

申请号：US14695646

申请日：2015-04-24

Applicant: NHK Spring Co., Ltd.

Inventor： Sei Kawao ,  Yukie Yamada

IPC: G11B5/48

CPC classification number: G11B5/483 ,  G11B5/48 ,  G11B5/4833 ,  G11B5/4846 ,  G11B5/4853 ,  G11B5/4873

Abstract: A terminal pad of a flexure for a head suspension connected to a functional part through a bonding material includes a terminal body, a base plating formed on a surface of the terminal body and having an uniform thickness, a padding plating made of a same material as the base plating and integrated with the base plating so that the padding plating swells with respect to the base plating, and a surface plating formed on a surface of the padding plating.

公开(公告)号：US09679592B2

公开(公告)日：2017-06-13

申请号：US15215337

申请日：2016-07-20

Applicant: NHK SPRING CO., LTD.

Inventor： Sei Kawao

IPC: G11B5/48

CPC classification number: G11B5/486 ,  G11B5/4826 ,  G11B5/4833 ,  G11B5/4853 ,  H05K1/028 ,  H05K1/056 ,  H05K1/147

Abstract: A suspension includes a load beam and a flexure. The flexure has a metal base and a conductive circuit portion. The conductive circuit portion has an insulating layer formed on the metal base, and a conductor formed on the insulating layer. The conductive circuit portion includes a first region which constitutes a part of the conductive circuit portion in the longitudinal direction, and a second region which constitutes another part of the same in the longitudinal direction. The conductor includes a thin conductor portion having a first thickness arranged in the first region, and a thick conductor portion having a second thickness arranged in the second region. The second thickness is greater than the first thickness.

公开(公告)号：US20170157744A1

公开(公告)日：2017-06-08

申请号：US15434519

申请日：2017-02-16

Applicant: NHK SPRING CO., LTD.

Inventor： Senri MORIYAMA ,  Satoshi AKIYAMA ,  Masaya KOMAZAKI ,  Go NAGAYASU ,  Hideki OKADA ,  Daisuke YOKOTA

IPC: B24C1/10 ,  F16F1/04 ,  B24C3/24

CPC classification number: B24C1/10 ,  B24C3/24 ,  F16F1/02 ,  F16F1/04

Abstract: A vertical motion impeller-type shot peening device performs a second shot peening to a coil spring including first shot peening indentations. The vertical motion impeller-type shot peening device includes a workpiece holding mechanism including a lower end turn support and an upper end turn support, a stress applying mechanism which compresses the coil spring, a rotation mechanism, and a projection mechanism which includes a pair of vertically movable impeller units. A first rough surface including first shot peening indentations is formed on a part of end turn portions of the coil spring. A second rough surface including second shot peening indentations is formed on the entire surface of wire except for the first rough surface.

公开(公告)号：USD788018S1

公开(公告)日：2017-05-30

申请号：US29560546

申请日：2016-04-07

Applicant: NHK SPRING CO., LTD.

Designer： Masaya Komazaki ,  Go Nagayasu

公开(公告)号：USD787421S1

公开(公告)日：2017-05-23

申请号：US29560533

申请日：2016-04-07

Applicant: NHK SPRING CO., LTD.

Designer： Masaya Komazaki ,  Go Nagayasu