The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2003
Filed:
May. 11, 2001
Akihisa Inoue, Aoba-ku, Sendai-shi, Miyagi-ken, JP;
Hisashi Kakiuchi, Kobe, JP;
Yoshishige Takano, Kobe, JP;
Other;
Abstract
A golf club head comprises a face part defining a face for striking a golf ball, and at least a part of the face part made of an alloy satisfying the following three conditions: (1) the alloy is composed of at least three different metallic elements whose group numbers in the periodic system are at least two consecutive numbers; (2) a difference in the atomic radius between at least two of said at least three different metallic elements is not less than 10%; and (3) the heat of mixing of the element that is the major component of the alloy and at least one of the remaining components or the remaining component is not less than −10 kcal/mol.