Title:
GOLF BALL
Document Type and Number:
Japanese Patent JP2013094225
Kind Code:
A
Abstract:
To provide a golf ball having excellent flight performance when being hit with a long iron and having excellent controllability when being hit with a short iron.
The golf ball has a non-uniform density. When the golf ball is divided into 10 layers whose volumes are the same and which are concentric with each other, a layer having the highest mass is any one of six layers from a first layer 28 from a center to a sixth layer 38 from the center. The layer having the highest mass may be two or more layers. The ratio of a distance between a point at which a local density is highest and the central point of the golf ball with respect to the radius of the golf ball is equal to or less than 85%.
Inventors:
ONUKI MASAHIDE
Application Number:
JP2011237011A
Publication Date:
May 20, 2013
Filing Date:
October 28, 2011
Export Citation:
Assignee:
DUNLOP SPORTS CO LTD
International Classes:
A63B37/00
Domestic Patent References:
| JP2011136162A | 2011-07-14 |
Attorney, Agent or Firm:
Kengo Oka
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
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