公开(公告)号：US20170331349A1

公开(公告)日：2017-11-16

申请号：US15581630

申请日：2017-04-28

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Akihiro IINO ,  Masao KASUGA ,  Jun SHINOHARA

IPC: H02K7/06 ,  H02K5/167 ,  H04M19/04 ,  H02K1/27 ,  B06B1/16 ,  B06B1/04

CPC classification number: H04M19/047 ,  B06B1/164 ,  H04M19/04

Abstract: There are provided a vibration generation device and an electronic apparatus adapted to generate a variety of vibrations corresponding to a variety of situations without making the power consumption excessively high. The vibration generation device and the electronic apparatus according to the present embodiment is provided with two vibration motors having respective eccentric weights different in weight from each other, and drives a first vibration motor having a heavier one of the eccentric weights in the case of announcing a first event, for which notice with a strong vibration is necessary or effective. In contrast, in the case of announcing the second event, for which a quick response or a response performance is required, a second vibration motor having a lighter one of the eccentric weights is driven. The first events include incoming, coming of alarm time, a dynamic or important action, motion, and so on in a game. The second events include confirmation of input operation using a touch or a press on a screen of the electronic apparatus, a minute action, motion, and so on occurring in the game. Further, the correspondence between the vibration motors and the events is made selectable.

公开(公告)号：US20180241280A1

公开(公告)日：2018-08-23

申请号：US15894612

申请日：2018-02-12

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Akihiro IINO ,  Masao KASUGA

IPC: H02K7/075 ,  H02K1/27 ,  H02K1/28 ,  G04B47/00

CPC classification number: H02K7/075 ,  B06B1/16 ,  G04B47/00 ,  H02K1/2793 ,  H02K1/28 ,  H02K5/1677 ,  H02K7/063 ,  H02K7/086 ,  H02K2205/03

Abstract: This vibration generation device includes a rotor that is configured to be rotatable about a rotation axis, the rotor including a weight having a center of gravity that is eccentric with respect to the rotation axis; a shaft that is inserted into the rotor and configured to rotatably support the rotor; and a restriction part that is disposed further inward than the weight in a radial direction, the restriction part being attached to one end of the shaft, and the restriction part restricting a movement of the rotor in an axial direction.

公开(公告)号：US20180147605A1

公开(公告)日：2018-05-31

申请号：US15814922

申请日：2017-11-16

Applicant: Seiko Instruments Inc.

Inventor： Akihiro IINO ,  Masao KASUGA

IPC: B06B1/16 ,  B06B1/04 ,  H02K7/065 ,  G05D19/02

CPC classification number: B06B1/166 ,  B06B1/045 ,  B06B1/16 ,  B06B1/164 ,  G05D19/02 ,  H02K7/063 ,  H02K7/065

Abstract: There is provided a vibration generation device superior in responsivity compared to the related art. The vibration generation device includes a stator, a rotor provided to the stator so as to be able to rotate around the central axis, and having a weight having a gravity center at a position shifted from the central axis, and an air resistance reduction part provided to the weight, and reducing the air resistance to the weight when the rotor rotates. The weight is formed to have a semicircular shape viewed from the axial direction, and the air resistance reduction part has an arcuate part adapted to connect an end edge on the upstream side in the rotational direction of the rotor in the outer circumferential surface of the weight and an end edge on the downstream side in the rotational direction to each other so as to form a circular arc shape.