Invention Grant
- Patent Title: Golf ball having increased moment of inertia
- Patent Title (中): 高尔夫球具有增加转动惯量
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Application No.: US12690881Application Date: 2010-01-20
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Publication No.: US08529375B2Publication Date: 2013-09-10
- Inventor: Yasushi Ichikawa
- Applicant: Yasushi Ichikawa
- Applicant Address: US OR Beaverton
- Assignee: NIKE, Inc.
- Current Assignee: NIKE, Inc.
- Current Assignee Address: US OR Beaverton
- Agency: Plumsea Law Group, LLC
- Main IPC: A63B37/12
- IPC: A63B37/12 ; A63B37/14

Abstract:
Generally disclosed is a golf ball having a core and a cover layer. The cover layer includes a coating material thereon that increases the golf ball's moment of inertia. The coating material is coated on the cover layer in a pattern corresponding to one of the dimple pattern and the pattern of land areas separating the dimples. The golf ball's moment of inertia is increased while utilizing only a small amount of the coating material as a result of the pattern of coating material, which locates the coating material at an outermost radial distance from the golf ball's center of rotation (i.e., the golf ball's center of gravity). The increased moment of inertia causes the golf ball to have a lower rate of spin when hit by a golf club, thereby displaying different play characteristics.
Public/Granted literature
- US20110177885A1 GOLF BALL HAVING INCREASED MOMENT OF INERTIA Public/Granted day:2011-07-21
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