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公开(公告)号：US20220247292A1
公开(公告)日：2022-08-04
申请号：US17584434
申请日：2022-01-26
Applicant: Yuki TAKAHASHI , Tomoya ISHITANI , Junichi HASHINO , Soichi SATO
Inventor： Yuki TAKAHASHI , Tomoya ISHITANI , Junichi HASHINO , Soichi SATO
Abstract: Provided is a vibration actuator including: a movable part that gives vibration to a vibration presenting part that receives a pressing operation; a vibration generating part that generates the vibration of the movable part in accordance with the pressing operation; a base part; and an elastic support part. The movable part includes: a load detecting part provided between a presentation-part side fixing part and a support-part side fixing part and detecting, as a load, strain due to the pressing operation; and a movement regulating part provided on a side of the presentation-part side fixing part rather than the load detecting part. The movement regulating part regulates movement of the movable part by engaging with an engaged part of the base part via a buffer member when the movable part moves in a direction separating from the base part.
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公开(公告)号：US20220123641A1
公开(公告)日：2022-04-21
申请号：US17561955
申请日：2021-12-26
Applicant: Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Daisuke KODAMA , Yuta YOSHII , Yasutaka KITAMURA , Shigenori INAMOTO
Inventor： Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Daisuke KODAMA , Yuta YOSHII , Yasutaka KITAMURA , Shigenori INAMOTO
IPC: H02K33/06
Abstract: A vibration actuator has a movable body including: a disk-shaped magnet; disk-shaped cores fixed on front and rear surfaces of the magnet and each having an opening at a center thereof; leaf springs having a substantially circular shape; and spring stopper weight parts each having one end positioned by joining the opening to be joined with one of the cores and having another end connected to a central part of one of the leaf springs; and a fixing body including an annular coil having a larger inner diameter than the magnet, the cores and the spring stopper weight parts. The fixing body supports an outer periphery part of the leaf springs and accommodates therein the movable body such that the magnet, the cores and the spring stopper weight parts are capable of moving upwardly and downwardly inside the coil.
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公开(公告)号：US11183914B2
公开(公告)日：2021-11-23
申请号：US16288242
申请日：2019-02-28
Applicant: Yuki Takahashi , Chikara Sekiguchi , Yuta Yoshii , Daisuke Kodama , Shigenori Inamoto
Inventor： Yuki Takahashi , Chikara Sekiguchi , Yuta Yoshii , Daisuke Kodama , Shigenori Inamoto
Abstract: A vibration actuator includes a movable body provided with one of a coil and a magnet that is disposed radially inward of the coil with a gap formed therebetween, a fixing body provided with the other of the coil and the magnet and a shaft portion, and an elastic support portion, the movable body vibrating in a vibration direction by means of cooperation between the coil supplied with power and the magnet. The movable body is provided with a through-hole into which the shaft portion is inserted with a gap formed between the through-hole and an outer peripheral surface of the shaft portion and the elastic support portion supports the movable body such that the movable body does not come into contact with the shaft portion at a time when the movable body does not vibrate and at a time when the movable body vibrates.
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公开(公告)号：US11133736B2
公开(公告)日：2021-09-28
申请号：US16471684
申请日：2017-12-19
Applicant: Yuki Takahashi , Chikara Sekiguchi , Tomoya Ishitani , Shigenori Inamoto
Inventor： Yuki Takahashi , Chikara Sekiguchi , Tomoya Ishitani , Shigenori Inamoto
Abstract: In the movable body one of a magnet and a core that has a magnetic pole surface disposed so as to face a magnetic pole surface of the magnet via an air gap and around which a coil is wound is provided on each of both sides across the shaft of the support shaft part in the movable body, and in the fixing body the other is provided facing the magnet or core disposed on both sides of the shaft of the support shaft part in the movable body. The movable body is elastically supported by magnetic attractive force generated between the magnetic pole surfaces at each of both sides across the shaft and vibrates back and forth in the direction of the shaft of the support shaft part with respect to the fixing body by the coil interacting with the magnet.
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公开(公告)号：US11069466B2
公开(公告)日：2021-07-20
申请号：US16286804
申请日：2019-02-27
Applicant: Yuki Takahashi , Tomoya Ishitani
Inventor： Yuki Takahashi , Tomoya Ishitani
Abstract: A vibration actuator includes: a fixing body having N-fold (N is a natural number) of 2 of core pole parts and a coil wound around each of the core pole parts; a movable body having a magnet part disposed being separated from each of the core pole parts in an axial direction of each of the core pole parts, for each of the core pole parts; and an elastic support part that movably supports the movable body, in which the magnet part has a magnetic pole disposed on each of the core pole part sides and facing each of the core pole parts, and in which the movable body vibrates in a direction orthogonal to both directions including a direction in which the N-fold of 2 of the core pole parts are aligned and the axial direction of the coil by the energization of the coil.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20190386552A1
公开(公告)日：2019-12-19
申请号：US16471684
申请日：2017-12-19
Applicant: Yuki Takahashi , Chikara Sekiguchi , Tomoya Ishitani , Shigenori Inamoto
Inventor： Yuki TAKAHASHI , Chikara SEKIGUCHI , Tomoya ISHITANI , Shigenori INAMOTO
Abstract: In the movable body one of a magnet and a core that has a magnetic pole surface disposed so as to face a magnetic pole surface of the magnet via an air gap and around which a coil is wound is provided on each of both sides across the shaft of the support shaft part in the movable body, and in the fixing body the other is provided facing the magnet or core disposed on both sides of the shaft of the support shaft part in the movable body. The movable body is elastically supported by magnetic attractive force generated between the magnetic pole surfaces at each of both sides across the shaft and vibrates back and forth in the direction of the shaft of the support shaft part with respect to the fixing body by the coil interacting with the magnet.
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公开(公告)号：US20190207496A1
公开(公告)日：2019-07-04
申请号：US16234634
申请日：2018-12-28
Applicant: Yuki TAKAHASHI , Kazutaka SAKAGUCHI , Yasutaka KITAMURA , Shigeyuki SHIMOMURA , Yuki OGIHARA
Inventor： Yuki TAKAHASHI , Kazutaka SAKAGUCHI , Yasutaka KITAMURA , Shigeyuki SHIMOMURA , Yuki OGIHARA
CPC classification number: H02K33/02 , G06F3/016 , G08B6/00 , H04M19/047
Abstract: A vibration actuator includes: a fixing part including one of a coil and a magnet; a movable part including the other one of the coil and the magnet; and an elastic supporting part configured to support the movable part movably with respect to the fixing part. The movable part is configured to reciprocate with respect to the fixing part in a vibration direction through cooperation between the powered coil and the magnet. The magnet is disposed away from and radially inside the coil. The elastic supporting part has a plate-like shape in which one end of the elastic supporting part is fixed to the fixing part at the side of the movable part and the other end is fixed to the movable part, and cantilevers the movable part in such a manner that the movable part can reciprocate in the vibration direction.
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公开(公告)号：US20190115816A1
公开(公告)日：2019-04-18
申请号：US16090347
申请日：2017-03-24
Applicant: Yuki TAKAHASHI , Yasutaka KITAMURA , Masaharu KAGAMI , Chikara SEKIGUCHI , Kazutaka SAKAGUCHI , Shigenori INAMOTO
Inventor： Yuki TAKAHASHI , Yasutaka KITAMURA , Masaharu KAGAMI , Chikara SEKIGUCHI , Kazutaka SAKAGUCHI , Shigenori INAMOTO
Abstract: An actuator has: an affixed section having a coil; a first mobile section that is elastically held and disposed so as to allow movement in the axial direction inside one end of the coil, and has a first magnet magnetized in the axial direction of the coil and disposed on one end in the axial direction; and a second mobile section that is elastically held and disposed so as to allow movement in the axial direction inside another end of the coil, and has a second magnet magnetized in the axial direction and disposed on the other end in the axial direction. The first and second magnets are disposed such that identical magnetic poles are in the same direction in the axial direction, and the first and second mobile sections move in opposite directions along the same axis when a current is applied to the coil.
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公开(公告)号：US20180234000A1
公开(公告)日：2018-08-16
申请号：US15749896
申请日：2016-08-02
Applicant: Yuki TAKAHASHI , Masami KAMIJO , Kazutaka SAKAGUCHI , Yasutaka KITAMURA , Masaharu KAGAMI , Shigenori INAMOTO , Mitsumi ELECTRIC CO., LTD.
Inventor： Yuki TAKAHASHI , Masami KAMIJO , Kazutaka SAKAGUCHI , Yasutaka KITAMURA , Masaharu KAGAMI , Shigenori INAMOTO
Abstract: The purpose of the present invention is to provide an actuator that has a simple configuration and can stably achieve high output without the occurrence of magnetic saturation. This actuator has: a movable body provided with a cylindrical magnet section having alternately N-pole faces and S-pole faces on the peripheral surface surrounding a rotation shaft; and a fixed body provided with, pole tooth surfaces of the same number as the N-pole faces and the S-pole faces, and a coil that excites the pole tooth sections. The movable body has as a turning reference position a position at which the center of the pole tooth surfaces in the circumferential direction and the switching position of the pole faces of the magnet section face each other, and is held to the fixed body so as to be turnable back and forth around the rotation shaft in the circumferential direction.
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公开(公告)号：US10033258B2
公开(公告)日：2018-07-24
申请号：US14868775
申请日：2015-09-29
Applicant: Tatsunori Okawa , Yuki Takahashi , Chikara Sekiguchi , Shigenori Inamoto
Inventor： Tatsunori Okawa , Yuki Takahashi , Chikara Sekiguchi , Shigenori Inamoto
Abstract: A linear actuator that can achieve downsizing with a simple configuration, and can provide stable linear reciprocation while achieving improvement in assemblability and cost reduction. In the actuator, movable member 50 faces coil 21 in the winding axis CL direction of coil 21, and in addition, includes magnet 30 magnetized in the coil-winding axis CL direction in a unipolar fashion and output shaft 60 extending in the CL direction. Elastic body 70 is disposed along the coil-winding axis CL direction and configured to deform in that direction to supports movable member 50 such that movable member 50 can reciprocate along the coil-winding axis CL direction. Elastic body 70 is fixed to fixing body 40 and movable member 50 at both ends 71 and 72 in the coil-winding axis CL direction such that central air gap CG is formed between electromagnet 20 and magnet 30.
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