Ring molded article manufacturing method and ring material

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11208910
APP PUB NO 20200088057A1
SERIAL NO

16689557

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Abstract

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Various implementations include a ring material used for producing a ring molded article. The ring molded article has two convex portions which respectively protrude on opposite sides of the ring molded article in a direction of a center axis thereof and extend in a direction of a circumference of the ring molded article. A straight line passing through centers of gravity of first and second side regions is inclined by an angle relative to the center axis of the ring material, the first and second side regions are obtained by virtually dividing a one half section of the ring material based on a middle of a maximum height of the ring material in the direction of the center axis of the ring material, and a range of the angle is 7 degrees to 40 degrees.

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Patent Owner(s)

Patent OwnerAddress
HITACHI METALS LTDTOKYO 108-8224

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohsone, Jun Okegawa, JP 6 11
Takizawa, Hideo Saitama, JP 14 82
Watanabe, Masayuki Okegawa, JP 174 2113

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