Tubular structure and manufacturing method therefor

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United States of America Patent

PATENT NO 11098827
APP PUB NO 20190078710A1
SERIAL NO

15771667

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A tubular structure includes a tube member provided with annular protrusions, on a side of an insertion opening that is a tube end part or a receiving opening and, on an outer circumference of the tube member, ring members, arranged on an opposite side of the tube end part with respect to the annular protrusions, having two side surfaces that are vertical with respect to an axis of the tube member.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONCHIYODA-KU TOKYO 100-8071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishijima, Shinnosuke Tokyo, JP 6 18
Tomimura, Kouki Tokyo, JP 24 123

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