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1. 发明公开

US20240283308A1 ROTOR AND MOTOR 审中-公开
公开(公告)号：US20240283308A1
公开(公告)日：2024-08-22
申请号：US18571328
申请日：2022-03-30
申请人： MINEBEA MITSUMI Inc.
发明人： Yutaka KAMOGI , Junichi MIYAKI
IPC分类号： H02K1/274
CPC分类号： H02K1/274
摘要： A rotor includes a rotor core, a magnet, and a cover. The rotor core includes an annular portion and a plurality of magnetic pole pieces. The magnet is disposed between two magnetic pole pieces adjacent to each other in a circumferential direction of the plurality of magnetic pole pieces. The cover covers an outer peripheral portion of the magnet, and is formed of a non-magnetic member or a member having magnetism lower than magnetism of the rotor core.

2. 发明公开

US20240280385A1 ABSOLUTE ENCODER, ANGLE ERROR CORRECTION DEVICE IN ABSOLUTE ENCODER, AND METHOD FOR CORRECTING ANGLE ERROR IN ABSOLUTE ENCODER 审中-公开
公开(公告)号：US20240280385A1
公开(公告)日：2024-08-22
申请号：US18561002
申请日：2022-03-25
申请人： MINEBEA MITSUMI Inc.
发明人： Takanori TATEI
IPC分类号： G01D5/244 , G01D18/00
CPC分类号： G01D5/2448 , G01D18/001
摘要： To suppress a maximum value of an angle deviation regardless of the position of a rotating body at the time of start-up. An absolute encoder includes a sensor configured to generate a signal indicating a value of a predetermined physical quantity varying depending on a rotation of a rotating body, a computer configured to generate angle information indicating an angle of the rotating body on the basis of the signal the computer determines an offset value for correcting an angle deviation indicating a difference between an angle indicated by the angle information and an actual angle of the rotating body to reduce the angle deviation, on the basis of the angle information at the time of start-up and a predetermined coefficient, and the computer corrects the angle deviation by using the offset value. The coefficient is calculated on the basis of the angle deviation.

3. 发明公开

US20240271920A1 STRAIN GAUGE AND LOAD CELL 审中-公开
公开(公告)号：US20240271920A1
公开(公告)日：2024-08-15
申请号：US18567970
申请日：2022-03-24
申请人： MINEBEA MITSUMI Inc.
发明人： Aya ONO , Yosuke OGASA , Toshiaki ASAKAWA , Akiyo YUGUCHI , Atsushi KITAMURA
IPC分类号： G01B7/16 , G01G3/14
CPC分类号： G01B7/18 , G01G3/14
摘要： The present strain gauge is a strain gauge installed on a Roberval-type strain generator, and includes a substrate having flexibility; and a resistor formed of a film that contains Cr, CrN, and Cr2N over the substrate, wherein a film thickness of the resistor is greater than or equal to 6 nm and less than or equal to 100 nm.

4. 发明公开

US20240247927A1 ROTATION DETECTION DEVICE, ROTATION DETECTION METHOD, AND ROTATION DETECTION PROGRAM 审中-公开
公开(公告)号：US20240247927A1
公开(公告)日：2024-07-25
申请号：US18562523
申请日：2022-05-23
申请人： MINEBEA MITSUMI Inc.
发明人： Jumpei FUJII , Juichi UNO
IPC分类号： G01B7/30 , G01D5/16
CPC分类号： G01B7/30 , G01D5/16
摘要： A rotation detection device includes: a comparator configured to generate a digital signal that indicates a magnitude relationship between a voltage, which is output from a potentiometer in accordance with an amount of rotation of a rotating body, and a threshold voltage; and a controller configured to detect a number of complete turns of the rotating body based on transition edges of the digital signal. By this means, the number of complete turns of the rotating body can be detected through a simple process, so that the size of the rotation detection program can be reduced.

5. 发明授权

US12047092B2 Checksum addition method, checksum addition device, and sensor system 有权
公开(公告)号：US12047092B2
公开(公告)日：2024-07-23
申请号：US17906511
申请日：2021-03-26
申请人： MINEBEA MITSUMI Inc.
发明人： Shinya Otsuka , Kosuke Yamamoto
IPC分类号： H03M13/09
CPC分类号： H03M13/096
摘要： A checksum addition method includes obtaining a command and an address transmitted from a request source; reading data from the address according to the command; calculating a checksum to be added to the data; and transmitting the checksum and the data to the request source, wherein the calculating calculates the checksum in a data unit according to a type of the command.

6. 发明授权

US12046830B2 Antenna device and feed device 有权
公开(公告)号：US12046830B2
公开(公告)日：2024-07-23
申请号：US17310560
申请日：2019-11-05
申请人： MINEBEA MITSUMI Inc.
发明人： Masaaki Fujii
IPC分类号： H01Q3/02 , H01Q3/26 , H01Q3/36 , G06T7/73 , H01Q3/30 , H01Q3/38
CPC分类号： H01Q3/2676 , H01Q3/36 , G06T7/73 , G06T2207/30204 , H01Q3/30 , H01Q3/38
摘要： An antenna device and a feed device that allows a beam direction to be adjusted with a simple calculation are provided.
An antenna device includes an array antenna with multiple antenna elements that are arranged in two dimensions, multiple antenna elements being arranged along each of a first axis and a second axis. The antenna device includes at least one phase adjusting unit configured to adjust, with respect to a first axial direction, a phase of power supplied to each of the multiple antenna elements. The antenna device includes an image capturing unit configured to capture an image through a fisheye lens. The antenna device includes a position converting unit configured to convert a first position, which is used in the image capturing unit, of a marker included in the image captured by the image capturing unit, into a second position of polar coordinates on a first plane that includes the first axis and the second axis. The antenna device includes an elevation-angle acquiring unit configured to determine, within a second plane that includes the first axis and a third axis, an elevation angle of a projected position relative to the third axis, based on the second position, the projected position being obtained by projecting the first position onto the second plane. The antenna device includes a control unit configured to control the phase adjusting unit such that a direction of a beam radiated through the array antenna is derived from the elevation angle within the second plane.

7. 发明公开

US20240230310A9 MAGNETISM DETECTION DEVICE AND ABSOLUTE ENCODER 审中-公开
公开(公告)号：US20240230310A9
公开(公告)日：2024-07-11
申请号：US18547747
申请日：2022-02-24
申请人： MINEBEA MITSUMI Inc.
发明人： Yasuo OSADA
IPC分类号： G01B7/30 , G01D5/14
CPC分类号： G01B7/30 , G01D5/14
摘要： Shielding members having different thicknesses can be easily attached. A magnetism detection device includes a magnet (Mr) magnetized, an angle sensor (Sr) as a magnetic sensor configured to detect a magnetic flux from the magnet (Mr), a magnet holder holding the magnet (Mr), and a second layshaft gear shaft. The magnetism detection device includes a case including a plurality of outer wall portions and a lid portion and configured to accommodate the magnet (Mr) and the magnetic sensor (Sr) inside and a shielding member having a flat plate shape and a shape corresponding to the lid portion and attached to the lid portion. The shielding member includes a protruding portion protruding outward from an outer peripheral portion. The case includes a recessed portion opening inward at an end portion outside of the lid portion and configured to accommodate the protruding portion. The recessed portion includes a plurality of sidewall portions having different widths and a plurality of upper wall portions having different heights.

8. 发明授权

US12027934B2 Vibration actuator and electronic device with vent hole 有权
公开(公告)号：US12027934B2
公开(公告)日：2024-07-02
申请号：US16894802
申请日：2020-06-07
申请人： Yuki Takahashi , Chikara Sekiguchi , Shigeyuki Shimomura , Yoshihiro Kumanomido , Daisuke Kodama , Yuta Yoshii , Shigenori Inamoto
发明人： Yuki Takahashi , Chikara Sekiguchi , Shigeyuki Shimomura , Yoshihiro Kumanomido , Daisuke Kodama , Yuta Yoshii , Shigenori Inamoto
IPC分类号： H02K33/18 , B06B1/04 , H02K33/12
CPC分类号： H02K33/18 , H02K33/12 , B06B1/045
摘要： A vibration actuator includes: a fixing body including a hollow case and a coil, a movable body that includes a magnet, and an elastic supporting part that supports the movable body such that the movable body is freely movable with respect to the fixing body in the hollow case. The hollow case restricts a movement range of the movable body in the case by opposite end surface portions that are disposed to face each other at a distance from each other in the vibration direction of the movable body, the hollow case includes one or more vent holes, and the vent holes are disposed in a portion of at least one end surface portion of the opposite end surface portions, the portion being free from interference by the movable body.

9. 发明公开

US20240213867A1 VIBRATION ACTUATOR AND ELECTRONIC DEVICE 审中-公开
公开(公告)号：US20240213867A1
公开(公告)日：2024-06-27
申请号：US18600854
申请日：2024-03-11
申请人： Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Yoshihiro KUMANOMIDO , Daisuke KODAMA , Yuta YOSHII , Shigenori INAMOTO
发明人： Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Yoshihiro KUMANOMIDO , Daisuke KODAMA , Yuta YOSHII , Shigenori INAMOTO
IPC分类号： H02K33/04 , G08B6/00 , H02K11/01
CPC分类号： H02K33/04 , G08B6/00 , H02K11/01
摘要： A vibration actuator includes: a movable body; a pair of elastic support parts each of which includes a flat-plate-shaped leaf spring connected to the movable body and extending radially and is configured to support the movable body; a fixing body configured to connect to the elastic support parts and accommodate therein the movable body such that the movable body is capable of reciprocally vibrating axially; and a cylindrical resin case having an opening portion on a circumferential wall portion and configured to close upper and lower faces of the circumferential wall portion and accommodate therein the fixing body. A lid portion of the case is disposed at a height such that a moving space as a movable range for the movable body is secured and the movable range is limited by contact of the movable body and the lid portion upon extension of the elastic support parts.

10. 发明公开

US20240171021A1 MOTOR DEVICE AND MOTOR 审中-公开
公开(公告)号：US20240171021A1
公开(公告)日：2024-05-23
申请号：US18494966
申请日：2023-10-26
申请人： Minebea Mitsumi Inc.
发明人： Volker DENKMANN , Helmut SCHNEIDER
IPC分类号： H02K1/22 , H02K1/02 , H02K7/08 , H02K7/116
CPC分类号： H02K1/22 , H02K1/02 , H02K7/085 , H02K7/116
摘要： A motor apparatus, in particular a BLDC motor apparatus, having a rotation axle and a rotor, which includes a base body and which is supported on the rotation axle in a first region and in at least one second region in a manner rotatable relative thereto, wherein a gear element of the rotor is at least arranged in part in the first region.
To provide a generic motor apparatus with improved properties in view of a design and a rotor support, it is suggested that the rotor comprises a hollow space about the rotation axle in an intermediate region between the first region and the second region.

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