BOTTOMED METAL CYLINDER - TOYO SEIKAN CO LTD

Title:

BOTTOMED METAL CYLINDER

Document Type and Number:

WIPO Patent Application WO/2023/195220

Kind Code:

A1

Abstract:

A bottomed metal cylinder 10 has, at the bottom, a ground-contacting portion 5, a rising portion 6 extending upward from the inside of the ground-contacting 5, and a dome-shaped bottom surface 7 connected to the rising portion 6, the bottomed metal cylinder being characterized in that an annular line 11 derived from a locally thin portion is observed at the peripheral edge portion 7a of the dome-shaped bottom surface 7.

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Inventors:

KAMIYAMA KOTA (JP)
NAKAMURA TOMOHIKO (JP)

Application Number:

PCT/JP2023/003216

Publication Date:

October 12, 2023

Filing Date:

February 01, 2023

Export Citation:

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Assignee:

TOYO SEIKAN CO LTD (JP)

International Classes:

B21D22/28; B21D22/30; B21D24/00; B21D51/26; B65D1/16

Foreign References:

JP2000211624A	2000-08-02
JP2018177289A	2018-11-15
JP2009078303A	2009-04-16
JPH11104764A	1999-04-20

Attorney, Agent or Firm:

ATAGO IP (JP)

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