公开(公告)号：US20170170712A1

公开(公告)日：2017-06-15

申请号：US15374003

申请日：2016-12-09

Applicant: Nidec Corporation

Inventor： Takeru OMURA ,  Imari MATSUBARA

IPC: H02K33/02 ,  H02K1/12 ,  H02K15/00 ,  H02K1/34

CPC classification number: H02K33/02 ,  H02K1/12 ,  H02K1/34 ,  H02K15/00 ,  H02K33/16

Abstract: A vibration motor includes a stationary portion including a casing and a coil; a vibrator including a magnet, and supported to be capable of vibrating in a first direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The elastic member includes an increased thickness portion including a fixed surface fixed to one of the vibrator and the stationary portion; a decreased thickness portion having a thickness smaller than that of the increased thickness portion as measured in the first direction; and a connection portion arranged between the increased thickness portion and the decreased thickness portion in a second direction perpendicular to the first direction. The connection portion is arranged to have a thickness smaller than that of the increased thickness portion and greater than that of the decreased thickness portion.

公开(公告)号：US20210140718A1

公开(公告)日：2021-05-13

申请号：US17090950

申请日：2020-11-06

Applicant: Nidec Corporation ,  Chaun-Choung Technology Corporation

Inventor： Takeru OMURA ,  Kiyoshi TADA ,  Masashi TAKAO ,  Masaaki HANANO ,  Toshihiko KOSEKI

IPC: F28D15/02

Abstract: A heat conduction member includes a housing including a space therein, a wick structure located in the space, and a working fluid enclosed in the space. The housing includes one or more metal plates and a joint structure that connects the one or more metal plates. The joint structure includes two stacked metal plate layers and a boundary portion between the two metal plate layers. The boundary portion includes a first region including crystal grains straddling the two metal plate layers.

公开(公告)号：US20190285116A1

公开(公告)日：2019-09-19

申请号：US16293886

申请日：2019-03-06

Applicant: Nidec Corporation

Inventor： Hiroshi MORISHITA ,  Kunio SAKURADA ,  Hirotaka TAMEKUNI ,  Takeru OMURA

IPC: F16C32/04 ,  F16C32/06 ,  F16C17/02

Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.