公开(公告)号：US12046979B2

公开(公告)日：2024-07-23

申请号：US17624715

申请日：2020-06-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akito Nakamura

IPC: H02K5/16 ,  H02K3/52 ,  H02K5/173 ,  H02K7/08 ,  H02K7/14 ,  H02K21/16 ,  B25F5/02

CPC classification number: H02K5/1732 ,  H02K3/522 ,  H02K7/083 ,  H02K7/145 ,  H02K21/16 ,  B25F5/02

Abstract: A motor includes a stator, a rotor, and a bearing holder. The rotor is disposed inside the stator. The rotor rotates with respect to the stator. The bearing holder holds a bearing of the rotor. The stator includes a plurality of coils, a plurality of teeth, and a coupling portion. Around the plurality of teeth, the plurality of coils are respectively arranged via an insulator. The coupling portion is located closer to the rotor than the plurality of coils are. The coupling portion couples at least some adjacent ones of the plurality of teeth. The bearing holder is positioned within a plane intersecting at right angles with a rotational axis of the rotor by coming into contact with either respective inner peripheral tips of the plurality of teeth or the coupling portion.

公开(公告)号：US12030161B2

公开(公告)日：2024-07-09

申请号：US17766899

申请日：2020-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Itaru Murui ,  Kotaro Momoeda ,  Kota Kitamura ,  Naoki Tsujimoto ,  Akito Nakamura

IPC: B25B23/147 ,  B25B21/02 ,  B25F5/00

CPC classification number: B25B23/147 ,  B25B21/02 ,  B25F5/001

Abstract: An electric tool includes an output shaft and a controller. The output shaft is configured to hold a tip tool and be rotated by motive power provided from an electric motor with the output shaft holding the tip tool. The controller is configured to control rotation of the output shaft in accordance with pressing force in a direction from a tip end of the tip tool toward the output shaft. The electric tool has, as an operation range, a restriction range in which rotation of the output shaft is restricted in a state where the pressing force is less than or equal to a prescribed value.

公开(公告)号：US12081098B2

公开(公告)日：2024-09-03

申请号：US17908165

申请日：2021-01-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akito Nakamura

IPC: H02K9/06 ,  H02K3/52 ,  H02K5/173 ,  H02K7/08 ,  H02K7/14 ,  H02K21/16

CPC classification number: H02K5/1732 ,  H02K3/522 ,  H02K7/083 ,  H02K7/145 ,  H02K9/06 ,  H02K21/16 ,  H02K2203/12

Abstract: The rotor includes a rotary shaft, a rotor core, and a plurality of permanent magnets. The stator includes a stator core and a plurality of coils. The stator core has a first contact surface. A normal vector to the first contact surface is aligned with a radially inward direction defined for the rotary shaft. A bearing holder (first bearing holder) has a second contact surface in contact with the first contact surface. A normal vector to the second contact surface is aligned with a radially outward direction defined for the rotary shaft. The bearing holder is positioned by bringing the first contact surface into contact with the second contact surface.

公开(公告)号：US11876408B2

公开(公告)日：2024-01-16

申请号：US17428922

申请日：2019-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsumasa Mizuno ,  Akito Nakamura ,  Koichiro Esaka ,  Kenji Okada

IPC: H02K1/276 ,  H02K7/14 ,  H02K21/16

CPC classification number: H02K1/2773 ,  H02K7/145 ,  H02K21/16

Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor rotates with respect to the stator core. The rotor includes: a rotor core having a circular cylindrical shape; a plurality of permanent magnets; and an output shaft. The output shaft is held inside the rotor core. The plurality of permanent magnets are arranged as spokes around a center of the rotor core.

公开(公告)号：US12121981B2

公开(公告)日：2024-10-22

申请号：US17766914

申请日：2020-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kota Kitamura ,  Itaru Murui ,  Naoki Tsujimoto ,  Kotaro Momoeda ,  Akito Nakamura

IPC: B23B45/02 ,  B25B21/00 ,  B25F5/00

CPC classification number: B23B45/02 ,  B25F5/00

Abstract: An electric tool includes a pressure-sensitive sensor, a support, an output shaft, and a controller. The pressure-sensitive sensor is configured to sense pressing force which is externally provided. The support supports the pressure-sensitive sensor. The output shaft is configured to hold a tip tool and be rotated relative to the support by motive power provided from an electric motor with the output shaft holding the tip tool. The controller is configured to control rotation of the output shaft in accordance with an output according to the pressing force, the output being output from the pressure-sensitive sensor.

公开(公告)号：US12266986B2

公开(公告)日：2025-04-01

申请号：US17913401

申请日：2021-02-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akito Nakamura ,  Kota Kitamura

IPC: H02K11/33 ,  H02K3/52 ,  H02K7/14

Abstract: A brushless motor is an inner rotor type brushless motor. The brushless motor includes a plurality of phase coils of multiple phases arranged around a rotation axis, and a plurality of terminals configured to connect the plurality of phase coils of multiple phases to a switching circuit. The plurality of terminals are located inside a circumscribed circle of the plurality of phase coils of multiple phases.

公开(公告)号：US12074487B2

公开(公告)日：2024-08-27

申请号：US17629214

申请日：2020-07-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akito Nakamura

IPC: H02K16/02 ,  B25F5/00 ,  H02K7/108 ,  H02K11/215 ,  H02K21/16

CPC classification number: H02K16/02 ,  B25F5/001 ,  H02K7/1085 ,  H02K11/215 ,  H02K21/16

Abstract: A motor includes a stator and a rotor. The stator has a coil unit and an iron core. The coil unit includes a plurality of coils and an insulator. The iron core includes a plurality of teeth. The rotor has a permanent magnet. The rotor is provided on an inner side of the stator to be rotatable around a shaft as a center with a gap being provided between the stator and the rotor. The rotor includes a plurality of segments divided in a rotation axis direction, the plurality of segments being rotatable relatively to each other such that a magnetic flux output from the rotor changes.

公开(公告)号：US11876402B2

公开(公告)日：2024-01-16

申请号：US17624815

申请日：2020-06-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akito Nakamura

IPC: H02K1/16 ,  H02K5/08 ,  H02K7/14 ,  H02K9/08

CPC classification number: H02K1/165 ,  H02K5/08 ,  H02K7/145 ,  H02K9/08

Abstract: A motor includes a stator, a rotor, and a cover. The rotor is disposed inside the stator with a gap left with respect to the stator. The rotor is provided to be rotatable with respect to the stator. The stator includes a plurality of coils, a plurality of teeth, and a coupling portion. Around the plurality of teeth, the plurality of coils are respectively arranged via an insulator. The coupling portion is located closer to the rotor than the plurality of coils. The coupling portion couples at least some adjacent ones of the plurality of teeth. The cover is formed mechanically integrally with the insulator. The cover is disposed to face at least a space inside the coupling portion along a rotational axis X of the rotor. The cover closes the gap.

公开(公告)号：US11417472B2

公开(公告)日：2022-08-16

申请号：US16910955

申请日：2020-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani ,  Akito Nakamura

IPC: H01G9/025 ,  H01G9/00 ,  C07C309/44 ,  C08K5/08 ,  H01G9/15

Abstract: An electrolytic capacitor including an anode body having a dielectric layer, and a solid electrolyte layer. The solid electrolyte layer contains an electrically conductive material, and an additive. The conductive material contains a π-conjugated polymer, and a polymer dopant doped in the π-conjugated polymer and having a first anionic group. The additive includes a quinone compound having a second anionic group.