公开(公告)号：US20190251934A1

公开(公告)日：2019-08-15

申请号：US16397170

申请日：2019-04-29

Applicant: YAMAHA CORPORATION

Inventor： Ryuji HASHIMOTO ,  Noritaka NAGAI ,  Banri ABE

IPC: G10D13/02

CPC classification number: G10D13/021 ,  G10D13/00 ,  G10D13/02 ,  G10D13/028

Abstract: Provided is a percussion instrument including a substantially cylindrical barrel and a weight fixed to the barrel. More specifically, a plurality of weights 5A to 5D may be provided on the inner circumferential surface of a shell 2 of a drum 1 (a percussion instrument). The weights 5A to 5D may be provided at positions where the weights 5A to 5D have four-fold rotational symmetry in the circumferential direction of the shell 2. The weights 5A to 5D may be each provided between lugs 3 that are provided adjacent to each other on the outer circumferential surface of the shell 2.

公开(公告)号：US20180366095A1

公开(公告)日：2018-12-20

申请号：US16116403

申请日：2018-08-29

Applicant: Yamaha Corporation

Inventor： Ryuji HASHIMOTO ,  Ryo SHINODA

IPC: G10D9/02 ,  G01H11/08

Abstract: A reed includes: a reed main body having a plate shape, the reed main body including a fixed part fixed to a mouthpiece, and a vibrating part that extends from the fixed part and vibrates; and a sensor part that is disposed inside the vibrating part or on an inner surface of the vibrating part, the inner surface of the vibrating part facing the mouthpiece, the sensor part comprising an effective sensor portion that detects vibration of the vibrating part.

公开(公告)号：US20170263222A1

公开(公告)日：2017-09-14

申请号：US15329836

申请日：2015-09-07

Applicant: YAMAHA CORPORATION

Inventor： Banri ABE ,  Ryuji HASHIMOTO ,  Keita MIYAZAKI

IPC: G10D13/02

CPC classification number: G10D13/022 ,  G10D13/02 ,  G10D13/025

Abstract: A drum, including: a shell; at least one head; and a vibration damping portion including at least one of (a) an outer-surface facing surface which is disposed in substantially parallel with and is closely opposed to an outer surface of an outer peripheral portion of the at least one head without contacting the outer surface and (b) an inner-surface facing surface which is disposed in substantially parallel with and is closely opposed to an inner surface of the outer peripheral portion of the at least one head without contacting the inner surface.

公开(公告)号：US20190295516A1

公开(公告)日：2019-09-26

申请号：US15757810

申请日：2016-09-14

Applicant: YAMAHA CORPORATION

Inventor： Ryuji HASHIMOTO ,  Eiji ABE

IPC: G10D13/02

Abstract: A drum head includes: a head portion in which an opening is formed along a periphery of the head portion; and a protective skin closing the opening and having air permeability.

公开(公告)号：US20160275925A1

公开(公告)日：2016-09-22

申请号：US15051934

申请日：2016-02-24

Applicant: YAMAHA CORPORATION

Inventor： Yohei WADA ,  Ryuji HASHIMOTO

IPC: G10D13/02

CPC classification number: G10D13/027 ,  G10D13/022

Abstract: A drum head includes a skin having an inner skin and an outer skin formed integrally with an outer edge of the inner skin. The inner skin has a plurality of openings arranged in a circumferential direction of the inner skin. An outline of each of the plurality of openings has an inner end portion in a radial direction of the skin in plan view, and the inner end portion protrudes and tapers inward in the radial direction.

Abstract translation: 鼓头包括具有与内皮的外边缘一体形成的内皮和外皮的皮肤。 内皮具有沿着内皮的圆周方向排列的多个开口。 多个开口中的每一个的轮廓在平面图中具有在皮肤的径向方向上的内端部，并且内端部沿径向向内突出并逐渐变细。

公开(公告)号：US20170278492A1

公开(公告)日：2017-09-28

申请号：US15441413

申请日：2017-02-24

Applicant: YAMAHA CORPORATION

Inventor： Ryuji HASHIMOTO

IPC: G10D13/02

CPC classification number: G10D13/027 ,  G10D13/022

Abstract: A drum head includes: a skin has a plurality of openings arranged along a periphery of the skin; and a reinforcement provided on at least a portion of peripheral edges of the plurality of openings.

公开(公告)号：US20180350331A1

公开(公告)日：2018-12-06

申请号：US16045056

申请日：2018-07-25

Applicant: YAMAHA CORPORATION

Inventor： Ryuji HASHIMOTO

IPC: G10D13/02

CPC classification number: G10D13/027 ,  G01H11/08 ,  G10D13/024 ,  G10H3/14 ,  G10H3/146 ,  G10H2220/535 ,  G10H2230/275

Abstract: A drum head includes: a first film including a striking surface; a second film disposed opposed to a back surface of the first film which is back from the striking surface; and a sensor disposed between the first film and the second film and configured to output a signal related to vibration. The sensor includes: a first contact surface configured to contact the back surface of the first film without being secured to the back surface; and a second contact surface configured to contact a front surface of the second film without being secured to the front surface. A sensor tail of the sensor is secured to at least one of the first film and the second film located outside the shell when the first film and the second film are stretched over an open end of a shell.