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Hayashi; Tstsuya
Hiratsuka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
5009425 Golf club head April 23, 1991
A golf club head in which a core buried in the interior of an outer shell of a fiber reinforced resin is molded out of a molten mixture of a thermoplastic resin and powder of a metal having a high specific gravity, and a method of manufacturing such golf club heads.

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