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:
Jun. 11, 2002
Filed:
Mar. 07, 2001
Mototaka Iwata, Osaka, JP;
Naoyuki Masuda, Osaka, JP;
Kiyoshi Sugimoto, Osaka, JP;
Koji Sakai, Osaka, JP;
Mizuno Corporation, Osaka, JP;
Abstract
A metal wood club head of a hollow hull structure according to the present invention is such that the vertical difference between a maximum face part height (MFH) from a sole part ( ) and a back part height (BH) from the sole part ( ) is at least within 25 mm, the height of a crown part ( ) having a width of 30% to 70% of a head width from the sole part ( ) is substantially identical to the maximum face part height (MFH) or more than that, the vertical difference between a maximum crown part height (MCH) from the sole part ( ) and the maximum face part height (MFH) is at least within 8 mm, and the radius (R ) of curvature of the crown part ( ) is substantially uniformly within the range of 100 mm to 1000 mm, while it sets the radius (R ) of curvature of the sole part ( ) substantially uniformly within the range of 500 mm to 2000 mm, and sets the ratio of thicknesses of the crown part ( ) and the sole part ( ) within the range of 1.0 to 1.2.