US Patent 9472175 Drum head and drum

Patent 9472175 was granted and assigned to Yamaha (yacht) on October, 2016 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11854514 Drumhead with reduced volume

Edits on 5 Dec, 2023

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Patent 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.

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Patent Inventor Names

Ryuji Hashimoto0

Yohei Wada0

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