Mitsubishi Kinzoku Kabushiki Kaisha

Mitsubishi Metal Corporation

Junji Hoshi

Saburo Wakita

Akira Mitsuhashi

Toshio Yonezawa

Shinich Miyamoto

Hideo Kawabata

Toshiyuki Shimamura

A precipitation strengthening type nickel base single crystal alloy, which consists essentially of, on a weight percent basis,

Precipitation hardening nickel base single crystal cast alloy

In a method of manufacturing a golf club head, at least a part of the golf club head is integrally precision-cast in titanium or an alloy thereof. The golf club head has a hollow section and a sole face provided therein with an opening communicating with the hollow section. A sole closure is manufactured by means of pressing. The sole closure is in agreement in dimension with the opening and is made of titanium or an alloy thereof. The sole closure made of the titanium or the alloy thereof is mounted to the opening in the golf club head in a sealed manner.

Method of manufacturing golf club head

An intermetallic compound type alloy consisting essentially of:

Intermetallic compound type alloy having improved toughness

Disclosed is a wear-resistant intermetallic compound alloy having superior machineability which consists essentially of: 45-60% of either Ni or Co or both with cobalt content of at least 5%, at least one of 0.1-2% of Hf and 0.05-2% of Re, 0-2% of at least one element selected from the group consisting of Si, P, Cu, Zn, Ga, Ge, Cd, In, Sn, Sb, Pb and Bi, 0-2% of C, and 0-5% of at least one element selected from the group consisting of Zr, Fe, V, Nb, Ta, Cr, Mo, W and Mn, the balance being Ti and incidental impurities, the percent being atomic percent.

Growing community of inventors

Ohmiya, Japan

Junji Hoshi