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101. 发明申请

US20210376672A1 MOTOR 有权
公开(公告)号：US20210376672A1
公开(公告)日：2021-12-02
申请号：US17330761
申请日：2021-05-26
申请人： MINEBEA MITSUMI Inc.
发明人： Minoru KURODA , Hirofumi OHBA
IPC分类号： H02K1/26 , H02K3/18 , H02K23/40
摘要： A motor includes: a magnet including a plurality of magnetic poles; a plurality of slots opposing the magnet; a coil wound around each of the plurality of slots; a commutator including a plurality of segments; and a plurality of brushes, each of the plurality of brushes including a contact portion contacting two adjacent segments among the plurality of segments, wherein both ends of the coil are connected to the two segments among the plurality of segments, and another segment is arranged between the two segments, one ends of two adjacent coils are connected to one segment of the two segments, and a segment connected to one ends of two adjacent coils and the another segment between two segments connected to either coil different from the two adjacent coils have the same potential.

102. 发明申请

US20210367460A1 MOTOR 有权
公开(公告)号：US20210367460A1
公开(公告)日：2021-11-25
申请号：US17319541
申请日：2021-05-13
申请人： MINEBEA MITSUMI Inc.
发明人： Jun OHMURA
IPC分类号： H02K1/18 , H02K5/04
摘要： A stator of a motor includes a plurality of magnetic bodies stacked in a direction of a central axis (X), a case configured to hold the plurality of magnetic bodies, a cover configured to cover the case, and a pillar including a guiding part configured to guide the plurality of magnetic bodies in the direction of the central axis (X). The plurality of magnetic bodies include a guided part guided by the pillar. The pillar includes an outer peripheral surface including positioning parts. The positioning parts determine relative positions of the case and the cover in an axial direction.

103. 发明授权

US11175016B2 Planar illumination device with spacer between lens and diffuser 有权
公开(公告)号：US11175016B2
公开(公告)日：2021-11-16
申请号：US17268625
申请日：2019-09-06
申请人： MINEBEA MITSUMI Inc.
发明人： Suguru Mukumoto , Tomoaki Morishita , Ginga Ito
IPC分类号： F21V13/04 , F21V5/04 , F21V7/05 , G02F1/1335 , G02F1/13357 , F21Y115/10
摘要： A planar illumination device includes a light source substrate, a lens, a diffuser, and a spacer. The light source substrate includes a plurality of light-emitting devices two-dimensionally arrayed thereon. The lens receives light emitted from the light source substrate. The diffuser receives light emitted from the lens. The spacer is integrated with the diffuser and disposed between the lens and the diffuser.

104. 发明授权

US11146188B2 Motor driving control apparatus and motor driving control method 有权
公开(公告)号：US11146188B2
公开(公告)日：2021-10-12
申请号：US16639631
申请日：2018-06-12
申请人： MINEBEA MITSUMI Inc.
发明人： Katsunori Yamamoto , Hiroyuki Kato
IPC分类号： H02P3/22 , H02P6/24
摘要： A motor driving control apparatus according to an embodiment includes: a motor driving unit that selectively energizes three-phase coils of a motor; a motor control unit that switches an energizing phase of the coils, the energizing phase being a phase to which the motor driving unit energizes, in a predetermined order by outputting a driving control signal to the motor driving unit; a brake control unit that outputs a brake control signal; an interphase short-circuiting unit that is connected between two-phase coils of the three-phase coils, and that short-circuits the two-phase coil in response to a short-circuiting signal; and a short-circuiting signal output unit that is connected between the interphase short-circuiting unit and one-phase coil that is not different from each of the two-phase coils of the three-phase coils, and that outputs a short-circuiting signal to the interphase short-circuiting unit when the brake control signal is received.

105. 发明申请

US20210249977A1 CONTROL DEVICE FOR STEPPING MOTOR AND CONTROL METHOD FOR STEPPING MOTOR 有权
公开(公告)号：US20210249977A1
公开(公告)日：2021-08-12
申请号：US16973932
申请日：2019-05-23
申请人： MINEBEA MITSUMI Inc.
发明人： Ayaka SHIMADA , Kazuo TAKADA , Kei YAMAZAKI
IPC分类号： H02P8/30
摘要： A control device for a stepping motor capable of hold control that can smoothly reduce an excitation current at a rotation stopping time of the stepping motor is provided. A control device (10) for a stepping motor (20) causes an excitation current to flow in a plurality of coils to rotate a rotor. The control device (10) includes a driving circuit (40) that applies a driving voltage to the coils, and a control circuit (30) that controls the driving voltage. The control circuit (30) performs hold control to move the rotor to a predetermined stop position by changing a magnitude of the excitation current flowing in the coils so that the magnitude of the excitation current becomes close to a target current value that gradually decreases, in a hold time period at a rotation stopping time of the stepping motor (20). The control circuit (30) sets an operation mode of the driving circuit (40) at an operation mode corresponding to a comparison result of the magnitude of the excitation current and the target current value, of a plurality of operation modes, at each predetermined period in the hold time period. The plurality of operation modes include a charge mode to increase the excitation current and a first attenuation mode to attenuate the excitation current.

106. 发明授权

US11085508B2 Driving apparatus 有权
公开(公告)号：US11085508B2
公开(公告)日：2021-08-10
申请号：US16640554
申请日：2018-07-20
申请人： MINEBEA MITSUMI Inc.
发明人： Shinji Koike
IPC分类号： F16H1/28 , A47K13/10 , F16H35/10 , F16H1/32 , F16H37/04 , F16H57/02
摘要： Provided is a driving apparatus that can be miniaturized while maintaining necessary output. A driving apparatus (1) comprises a motor (10), an intermediate gear train (20) including at least one gear that transmits power generated by the motor (10), and an output shaft (30) to output driving power to outside. Furthermore, the driving apparatus (1) comprises a torque limiter (40) provided between the intermediate gear train (20) and the output shaft (30), to enable cutoff of the transmission of the power between the intermediate gear train (20) and the output shaft (30), and a planetary gear mechanism (50) provided between the torque limiter (40) and the output shaft (30). The planetary gear mechanism (50) is disposed in parallel with the motor (10).

107. 发明申请

US20210228109A1 BIOLOGICAL STATE MONITORING SYSTEM 有权
公开(公告)号：US20210228109A1
公开(公告)日：2021-07-29
申请号：US17050292
申请日：2019-04-15
申请人： MINEBEA MITSUMI INC. , NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
发明人： Shinsuke TODOROKI , Shiroh ISONO
IPC分类号： A61B5/113 , A61B5/08
摘要： A biological state monitoring system (100) for monitoring a biological state of a subject on a bed (BD) over a predetermined monitoring period, includes: at least one load detector (11, 12, 13, 14) configured to detect a load of the subject on the bed; and a respiratory rate estimating unit (34) configured to successively obtain and output estimated values of a respiratory rate of the subject, based on a temporal variation of a detection value of the load detector. The monitoring period includes a body motion period in which the subject has a body motion, and a resting period in which the subject merely performs a respiration. In a case that the monitoring period shifts from a first resting period to the body motion period and then from the body motion period to a second resting period, the respiratory rate estimating unit outputs, in the body motion period and a predetermined period starting from the shifting from the body motion period to the second resting period, a last estimated value which is the latest among the estimated values obtained successively in the first resting period.

108. 发明授权

US11067228B2 Planar illumination device 有权
公开(公告)号：US11067228B2
公开(公告)日：2021-07-20
申请号：US16761079
申请日：2018-10-04
申请人： MINEBEA MITSUMI Inc.
发明人： Kenta Takakusaki
IPC分类号： G09F13/18 , F21K9/61 , F21V8/00
摘要： A planar illumination device according to an embodiment includes a light guide plate, an attenuation element, and a plurality of light sources. The light guide plate has a light-emitting surface that is a main surface through which light is emitted and a light-receiving side surface that is a side surface intersecting with the light-emitting surface and receives the light. The attenuation element attenuates the light entering through the light-receiving side surface. The light sources face the light-receiving side surface of the light guide plate and are arranged in parallel with one another at certain intervals. One of the intervals closer to the attenuation element is smaller than another of the intervals distanced from the attenuation element.

109. 发明授权

US11063400B2 Motor 有权
公开(公告)号：US11063400B2
公开(公告)日：2021-07-13
申请号：US16417053
申请日：2019-05-20
申请人： MINEBEA MITSUMI INC.
发明人： Mikio Umehara , Atsushi Omura , Kazuaki Sato
IPC分类号： H02K13/10 , H02K5/14 , H02K5/22 , H02K23/04 , H02K13/00 , H01R39/38
摘要： A motor including: a frame having an outer diameter of 10 millimeters or less and an inner surface; an annular magnet attached to the inner surface of the frame; a bracket provided at the frame; a columnar brush formed of carbon and having an outer peripheral surface; a commutator contacting the outer peripheral surface of the brush; and an elastic member supporting the brush at the bracket, in which a part of the elastic member is inside the brush.

110. 发明授权

US11060928B2 Load sensor and load sensor integrated type multiaxial actuator 有权
公开(公告)号：US11060928B2
公开(公告)日：2021-07-13
申请号：US16956864
申请日：2018-12-26
申请人： MINEBEA MITSUMI Inc.
发明人： Kui Li , Kotaro Eguchi
IPC分类号： G01L1/00 , G01L1/22 , H05K13/04
摘要： Provided is a load sensor that may precisely detect a load of pressing force to an object. A load sensor to be used for a multiaxial actuator (10) that has a drive rod (12) that linearly moves in an axial direction in a state where the drive rod (12) is contained in a housing (11), and a suction rod (22) that is arranged in parallel with the drive rod (12), linearly moves at the same time as the drive rod (12) in the axial direction, and has a tip end portion (22a) to be pressed, when a chip is to be suctioned, against the chip, includes a coupling member (30) that couples the drive rod (12) and the suction rod (22), in which the coupling member (30) has a first coupling part (31) that couples the drive rod (12), and a second coupling part (32) that couples the suction rod (22) in an integrated state, and the first coupling part (31) has a strain body part (311) that is formed to be thinner than the second coupling part (32) and supports the drive rod (12), and strain gauges (41) to (44) attached to the strain body part (311).

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