Hollow structure and resonant sound reducing body

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12205570
APP PUB NO 20240087553A1
SERIAL NO

18518690

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Abstract

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A hollow structure has a hollow body with an annular first space and at least one resonator. In the resonator there is formed an elongated second space with a pair of openings at two ends thereof. Each of the pair of openings opens inwardly toward the interior of the first space. The ratio of the length of a centerline of the second space to the length of a centerline of the first space is within a range of from 0.45 to 0.55. The second space is disposed in a curve along a circumferential surface of the first space and is shaped such that one of the two ends of the second space is folded back toward the other end.

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Patent Owner(s)

Patent OwnerAddress
YAMAHA CORPORATION10-1 NAKAZAWA-CHO NAKA-KU HAMAMATSU-SHI SHIZUOKA-KEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Honji, Yoshikazu Hamamatsu, JP 28 373
Yoshida, Azumi Hamamatsu, JP 23 11

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