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:
Feb. 19, 2008
Filed:
Mar. 04, 2004
Tetsuo Yamaguchi, Kobe, JP;
Masaru Kono, Kobe, JP;
Akio Yamamoto, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
A maximum resilience point (M) of a head () is positioned above a center (C) of a hitting surface. On the maximum resilience point (M), (t−t) measured in accordance with a pendulum test determined by USGA has a maximum value. When coordinates of the center (C) of the hitting surface are set to be (0, 0) and coordinates of the maximum resilience point (M) are set to be (x, y), y is greater than 0 mm and is equal to or smaller than 10 mm. The value of (t−t) on the maximum resilience point (M) is 250·10second or more. The value of (t−t) on the center (C) of the hitting surface is smaller than 250·10second. y may be set to be equal to or greater than −5 mm and to be smaller than 0 mm. x may be set to be equal to or greater than −10 mm and to be smaller than 0 mm. x may be set to be greater than 0 mm and to be equal to or smaller than 10 mm.