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公开(公告)号：US20230061042A1
公开(公告)日：2023-03-02
申请号：US17884111
申请日：2022-08-09
Inventor： Katsuaki GOTO , Shota HARADA , Keitaro ITO , Yuuki INAGAKI , Takahiko YOSHIDA , Yusuke KAWAI
Abstract: In a method for manufacturing a micro vibration body having a three-dimensional curved surface, a mold defining a recess part is prepared, and a plate-shaped reflow material is arranged on the mold so as to cover the recess part. Pressure of a space defined by the recess part covered with the reflow material is reduced, and the reflow material is deformed by heating from an upper surface side opposite to a lower surface facing the recess part and by means of the pressure reduced. When the reflow material is deformed, a part of the mold is heated and / or cooled. As another example, when the reflow material is deformed, a mold having a different heat capacity portion is used to generate a temperature gradient in the mold.
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公开(公告)号：US20220316880A1
公开(公告)日：2022-10-06
申请号：US17703164
申请日：2022-03-24
Inventor： Shota HARADA , Keitaro ITO , Katsuaki GOTO , Yuuki INAGAKI , Takahiko YOSHIDA , Yusuke KAWAI , Teruhisa AKASHI , Hirofumi FUNABASHI
Abstract: A micro vibration body includes a curved surface portion, a recessed portion recessed from the curved surface portion, a bottom surface protruding portion protruding from a bottom surface of the recessed portion, and a through hole in the bottom surface protruding portion. A mounting substrate has a positioning recess, into which the bottom surface protruding portion is inserted, and electrode portions surrounding the inner frame portion. A joining member is in the positioning recess and joins the bottom surface protruding portion with the mounting substrate. The bottom surface is in contact with a region of the mounting substrate around the positioning recess. The bottom surface protruding portion has a tip end surface that is at a distance from the positioning recess. The joining member at least partially enters the through hole and is electrically connected to the conductive layer.
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公开(公告)号：US20230243656A1
公开(公告)日：2023-08-03
申请号：US18297984
申请日：2023-04-10
Applicant: DENSO CORPORATION
Inventor： Teruhisa AKASHI , Shota HARADA
IPC: G01C21/18 , G01C19/06 , G01C19/18 , G01C19/5776 , G01C19/5783
CPC classification number: G01C21/18 , G01C19/065 , G01C19/18 , G01C19/5776 , G01C19/5783
Abstract: Before a pedestal is assembled, a sensitivity is inspected for each of sensors disposed in blocks respectively. In an inspection step, the blocks in which the sensors are disposed respectively are prepared. The blocks are fitted into main-axis groove portions of a main-axis tray, and the blocks are brought in contact with main-axis positioning surfaces of the main-axis groove portions to dispose the thickness direction of the main-axis tray and the main-axes of the sensors in parallel. The main-axis tray is arranged on a turntable such that a central axis of rotation of the turntable and the thickness direction of the main-axis tray are in parallel and that the central axis of rotation of the turntable and the main-axes of the sensors are in parallel. The turntable is made pivoting or swinging to inspect the sensitivities, in the main-axes, of the of sensors.
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Patent Agency Ranking
公开(公告)号：US20240401948A1
公开(公告)日：2024-12-05
申请号：US18659102
申请日：2024-05-09
Inventor： Keitaro ITO , Shota HARADA , Katsuaki GOTO , Yuuki INAGAKI , Hideaki NISHIKAWA , Takahiko YOSHIDA , Yusuke KAWAI
IPC: G01C19/5712
Abstract: An inertial sensor includes a resonator, a mounting board, and an actuator. The resonator has a first drive mode and a second drive mode. The mounting board has a plurality of electrode portions arranged at a distance from each other and surrounding the resonator. The actuator is configured to vibrate in a z-axis direction. The z-axis direction is a direction orthogonal to a planar direction of the mounting board. The actuator is further configured to vibrate the resonator in the z-axis direction to cause a resonance mode.
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公开(公告)号：US20230324175A1
公开(公告)日：2023-10-12
申请号：US18189322
申请日：2023-03-24
Inventor： Hideaki NISHIKAWA , Yusuke KAWAI , Takahiko YOSHIDA , Yuuki INAGAKI , Shota HARADA , Keitaro ITO , Katsuaki GOTO
IPC: G01C19/5691 , B81B3/00
CPC classification number: G01C19/5691 , B81B3/0086 , B81B2201/0242 , B81B2203/04
Abstract: A mounting structure includes a micro vibrator and a mounting substrate. The micro vibrator includes a curved surface portion having an annular curved surface and a connecting portion extending from the curved surface portion toward an inner center position of the curved surface portion. The micro vibrator is disposed so that the connecting portion is bonded to the mounting substrate and the curved surface portion is in a hollow state free from other elements. The mounting substrate includes a plurality of electrode portions that are arranged to face and surround a rim of the curved surface portion of the micro vibrator, and spaced apart from each other, the rim being an end of the curved surface portion opposite to the connecting portion. Further, the mounting substrate includes a guard electrode.
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公开(公告)号：US20230243866A1
公开(公告)日：2023-08-03
申请号：US18297929
申请日：2023-04-10
Applicant: DENSO CORPORATION
Inventor： Teruhisa AKASHI , Shota HARADA , Yoshiyuki HATA
Abstract: A multi-axis inertial force sensor includes a mounting material, blocks, and sensors. Each block has a positioning portion that determines its position relative to a contact partner. A pedestal is formed by an assembly of the blocks where the positions are determined relative to each other based on the positioning portion and where inclined surfaces are oriented in different directions. The sensors are respectively arranged on the inclined surfaces of the pedestal so that the main axes are oriented in different directions to detect vector components of inertial force corresponding to the main axes.
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公开(公告)号：US20220315411A1
公开(公告)日：2022-10-06
申请号：US17703418
申请日：2022-03-24
Inventor： Keitaro ITO , Shota HARADA , Katsuaki GOTO , Yuuki INAGAKI , Teruhisa AKASHI , Hirofumi FUNABASHI , Takahiko YOSHIDA , Yusuke KAWAI
Abstract: A micro vibration body includes a curved surface portion, which has an annular curved surface, and a recessed portion, which is recessed from the curved surface portion. A mounting substrate includes an inner frame portion and electrode portions, which surround an inner frame portion. A joining member is provided in an inner region of the mounting substrate surrounded by the inner frame portion. The recessed portion of the micro vibration body has a bottom surface defining a mounted surface located in the inner region and joined to the mounting substrate via the joining member. The curved surface portion has a rim that includes an end portion of the curved surface portion on an opposite side to the recessed portion. The rim has a rim lower surface located on a same plane as the mounted surface or a tip end portion of the mounted surface.
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公开(公告)号：US20210041475A1
公开(公告)日：2021-02-11
申请号：US17082199
申请日：2020-10-28
Applicant: DENSO CORPORATION
Inventor： Shota HARADA , Keitaro ITO , Tomoya JOMORI , Hideo YAMADA , Yuuki INAGAKI , Teruhisa AKASHI , Yoshiyuki HATA
Abstract: An electrostatic actuator includes a fixed electrode and a movable electrode arranged to face the fixed electrode. The movable electrode is configured to be displaceable with respect to the fixed electrode and a fixed portion. An attractive force acts between the movable electrode and the fixed portion. In the electrostatic actuator, a non-linear vibration of the movable electrode when a voltage is applied to the fixed electrode and the movable electrode is reduced by the attractive force acting between the movable electrode and the fixed portion.
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