Golf club head

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9808681
SERIAL NO

15153381

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A hollow golf club head comprises a face part, a sole part, a side part, a crown part, and a hosel part. At least one of the face part and the crown part has portions of two different rigidities that are first and second rigid portions, the first rigid portion has a first rigidity, the second rigid portion is made of the same material as the first rigid portion, and the second rigid portion has the same thickness as the first rigid portion but has a lower rigidity than the first rigidity of the first rigid portion.

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First Claim

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Family

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Patent Owner(s)

  • BRIDGESTONE SPORTS CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takechi, Takaharu Tokyo, JP 36 495

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