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.

Date of Patent:
Feb. 11, 2014

Filed:

Feb. 24, 2012
Applicants:

Hyoungchol Kim, Kobe, JP;

Takahiro Sajima, Kobe, JP;

Kaname Yamada, Kobe, JP;

Inventors:

Hyoungchol Kim, Kobe, JP;

Takahiro Sajima, Kobe, JP;

Kaname Yamada, Kobe, JP;

Assignee:

SRI Sports Limited, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Based on a surface shape appearing at a predetermined point moment by moment during rotation of a golf ball having numerous dimples on its surface, a data constellation regarding a parameter dependent on a surface shape of the golf ball is calculated. Preferably, the parameter is a distance between an axis of the rotation and the surface of the golf ball. Another preferable parameter is a volume of space between a surface of a phantom sphere and the surface of the golf ball. Based on a maximum value and a minimum value of the data constellation, a fluctuation range is calculated. By dividing the fluctuation range by a total volume of the dimples, an evaluation value is calculated. This value is calculated for each of PH rotation and POP rotation.


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