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:
May. 22, 2012
Filed:
Dec. 16, 2002
Applicants:
Harunobu Kusumoto, Saitama, JP;
Takeshi Kasai, Saitama, JP;
Atsushu Iijima, Saitama, JP;
Hitoshi Tamura, Tokyo, JP;
Inventors:
Harunobu Kusumoto, Saitama, JP;
Takeshi Kasai, Saitama, JP;
Atsushu Iijima, Saitama, JP;
Hitoshi Tamura, Tokyo, JP;
Assignee:
Fu Sheng Industrial Co., Ltd., Taiwan, CN;
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A weight piece () containing 15 wt. % or greater of iron and tungsten, and having a specific gravity of 9 or larger, larger than a material of a head body () made of steel or pure iron, is joined to the head body () by welding.