Iron golf club head and iron golf club

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United States of America Patent

PATENT NO 9522311
SERIAL NO

14479698

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Abstract

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In an iron golf club head with a face portion and a neck portion integrally molded by forging, the iron golf club head is made of an iron steel material at least containing 0.30% by weight or less of carbon and 0.0005% by weight to 0.003% by weight of boron. The face portion has been subjected to quenching processing.

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Patent Owner(s)

Patent OwnerAddress
MIZUNO CORPORATIONOSAKA
CHUO INDUSTRIES LTD6-46 SAIJO-YOSHIYUKI-HIGASHI 1-CHOME HIGASHIHIROSHIMA-SHI HIROSHIMA 739-0008

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doi, Kazuhiro Osaka, JP 110 1075
Yoshikawa, Jun Hiroshima, JP 136 4192

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