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. 25, 2014
Filed:
Oct. 19, 2010
Keiji Ohama, Kobe, JP;
Yoshiko Matsuyama, Kobe, JP;
Toshiyuki Tarao, Kobe, JP;
Kazuyoshi Shiga, Kobe, JP;
Hirotaka Nakamura, Kobe, JP;
Takahiro Sajima, Kobe, JP;
Keiji Ohama, Kobe, JP;
Yoshiko Matsuyama, Kobe, JP;
Toshiyuki Tarao, Kobe, JP;
Kazuyoshi Shiga, Kobe, JP;
Hirotaka Nakamura, Kobe, JP;
Takahiro Sajima, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
Golf ball wherein, at all points Pa included in zone 'A' away from the central point of its core at a distance of ≧1 mm and <5 mm, this mathematical expression is satisfied: Ha−Ha<5, wherein Haand Haeach represents hardness at a point located respectively inside a point Pa and outside the point Pa. Also, at any point Pb included in zone 'B' away from the central point of its core at a distance of ≧5 mm and ≦10 mm, this mathematical expression is satisfied: Hb−Hb≧5, wherein Hband Hbeach represents hardness at a point located respectively inside a point Pb and outside the point Pb. This hardness distribution provides a golf ball with reduced energy loss when hit with a driver, and with excellent control performance when hit with a short iron.