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公开(公告)号：US12159655B2
公开(公告)日：2024-12-03
申请号：US18093769
申请日：2023-01-05
Applicant: NHK SPRING CO., LTD.
Inventor： Mikio Arai , Hiroshi Daifuku
IPC: G11B5/48
Abstract: A base plate includes a plate body and a connection portion provided at the plate body. The connection portion includes a through hole gassing through the plate body in a thickness direction of the plate body, a plurality of protrusions provided along an edge of the through hole in a circumferential direction about a central axis of the through hole and inserted into an attachment hole provided in the arm, and an inner circumferential surface formed by the plurality of protrusions and the through hole. The inner circumferential surface includes a plurality of recesses formed between the plurality of protrusions.
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2.发明申请公开(公告)号：US20130314821A1
公开(公告)日：2013-11-28
申请号：US13857706
申请日：2013-04-05
Applicant: NHK SPRING CO., LTD.
Inventor： Mikio Arai
IPC: G11B5/48
CPC classification number: G11B5/486 , G11B5/4873
Abstract: A terminal area includes a metal plate, an electrically insulating layer, and a conductor layer. An opening section is formed in the metal plate and the insulating layers A gold plating layer is formed on a surface of the conductor layer inside the opening section. A porous metal layer of a first transition element is formed on a surface of the gold plating layer. Through-holes of the porous metal layer reach the surface of the gold plating layer. An electrically conductive adhesive is provided between an electrode of an actuator element and the porous metal layer. An anchor portion of the electrically conductive adhesive gets into the through holes and is cured. Conductive particles of the electrically conductive adhesive contact the gold plating layer.
Abstract translation: 端子区域包括金属板，电绝缘层和导体层。 在金属板上形成有开口部，绝缘层在开口部内部的导体层的表面形成镀金层。 在镀金层的表面上形成第一过渡元素的多孔金属层。 多孔金属层的通孔到达镀金层的表面。 在致动器元件的电极和多孔金属层之间设置导电粘合剂。 导电粘合剂的固定部分进入通孔并固化。 导电粘合剂的导电颗粒接触镀金层。
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Patent Agency Ranking
公开(公告)号：US09905252B2
公开(公告)日：2018-02-27
申请号：US14306828
申请日：2014-06-17
Applicant: NHK Spring Co., Ltd.
Inventor： Mikio Arai
CPC classification number: G11B5/127 , G11B5/4833 , G11B5/4873
Abstract: A head suspension includes a base to be attached to a carriage, a load beam having a rigid part and a resilient part that connects the rigid part to the base, the load beam applying load onto a read/write head, a flexure attached to the load beam and supporting the head, an actuator attaching part located between the base and the head, and a piezoelectric element being deformable in response to a voltage applied thereto to move the head in a sway direction relative to the base. For the head suspension, it bonds the piezoelectric element with a bonding tape to the actuator attaching part and applies an adhesive to fix the piezoelectric element to the actuator attaching part.
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4.发明授权公开(公告)号：US08760813B2
公开(公告)日：2014-06-24
申请号：US13857706
申请日：2013-04-05
Applicant: NHK Spring Co., Ltd.
Inventor： Mikio Arai
IPC: G11B5/48
CPC classification number: G11B5/486 , G11B5/4873
Abstract: A terminal area includes a metal plate, an electrically insulating layer, and a conductor layer. An opening section is formed in the metal plate and the insulating layer. A gold plating layer is formed on a surface of the conductor layer inside the opening section. A porous metal layer of a first transition element is formed on a surface of the gold plating layer. Through-holes of the porous metal layer reach the surface of the gold plating layer. An electrically conductive adhesive is provided between an electrode of an actuator element and the porous metal layer. An anchor portion of the electrically conductive adhesive gets into the through-holes and is cured. Conductive particles of the electrically conductive adhesive contact the gold plating layer.
Abstract translation: 端子区域包括金属板，电绝缘层和导体层。 在金属板和绝缘层中形成开口部。 在开口部内部的导体层的表面上形成镀金层。 在镀金层的表面上形成第一过渡元素的多孔金属层。 多孔金属层的通孔到达镀金层的表面。 在致动器元件的电极和多孔金属层之间设置导电粘合剂。 导电粘合剂的固定部分进入通孔并固化。 导电粘合剂的导电颗粒接触镀金层。
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公开(公告)号：US10101253B2
公开(公告)日：2018-10-16
申请号：US15448843
申请日：2017-03-03
Applicant: NHK SPRING CO., LTD.
Inventor： Mikio Arai
Abstract: The present invention provides a method of surely detecting a crack in piezoelectric elements regardless of size of the crack. The method includes applying voltage to a first piezoelectric element of a pair of piezoelectric elements to cause deformation in the first piezoelectric element, forcibly deforming a second piezoelectric element of the pair of the piezoelectric elements to generate voltage from the second piezoelectric element according to the deformation of the first piezoelectric element, finding a transfer function of the pair of the piezoelectric elements based on values of the applied voltage and the generated voltage, and detecting presence or absence of a crack in the pair of the piezoelectric elements based on an objective value obtained from the found transfer function.
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公开(公告)号：US09638650B2
公开(公告)日：2017-05-02
申请号：US14017859
申请日：2013-09-04
Applicant: NHK SPRING CO., LTD.
Inventor： Mikio Arai
Abstract: A piezoelectric element feeder for feeding a piezoelectric element, includes a drawing unit that draws a first electrode surface of the piezoelectric element with use of negative pressure and transfers the piezoelectric element onto the actuator attaching part and a probe movably supported with the drawing unit and used to measure electric characteristics of the piezoelectric element. A front end of the probe is brought into contact with the first electrode surface when or just before the drawing unit draws the first electrode surface, to enable a measurement of the electric characteristics of the piezoelectric element.
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7.发明授权Head suspension having actuator in which piezolectric element is bonded with bonding tape, actuator and method of attaching piezoelectric element with bonding tape 有权头部悬挂具有致动器，其中压电元件用粘结带粘合，致动器以及用粘合带粘合压电元件的方法公开(公告)号：US08837091B2
公开(公告)日：2014-09-16
申请号：US14047658
申请日：2013-10-07
Applicant: NHK Spring Co., Ltd.
Inventor： Mikio Arai
CPC classification number: G11B5/127 , G11B5/4833 , G11B5/4873
Abstract: A head suspension includes a base to be attached to a carriage, a load beam having a rigid part and a resilient part that connects the rigid part to the base, the load beam applying load onto a read/write head, a flexure attached to the load beam and supporting the head, an actuator attaching part located between the base and the head, and a piezoelectric element being deformable in response to a voltage applied thereto to move the head in a sway direction relative to the base. For the head suspension, it bonds the piezoelectric element with a bonding tape to the actuator attaching part and applies an adhesive to fix the piezoelectric element to the actuator attaching part.
Abstract translation: 磁头悬架包括要附接到滑架的基座，具有刚性部分的负载梁和将刚性部分连接到基座的弹性部分，负载梁将负载施加到读/写头上，挠曲件附接到 负载梁并支撑头部，位于基座和头部之间的致动器附接部件以及响应于施加到其上的电压而可变形的压电元件，以相对于基座摆动方向移动头部。 对于磁头悬架，它将压电元件用粘合带粘合到致动器附接部分，并施加粘合剂以将压电元件固定到致动器附接部分。
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