Invention Grant
- Patent Title: Golf ball
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Application No.: US14919303Application Date: 2015-10-21
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Publication No.: US09707452B2Publication Date: 2017-07-18
- Inventor: Kohei Mimura , Takahiro Sajima
- Applicant: DUNLOP SPORTS CO. LTD.
- Applicant Address: JP Kobe-Shi, Hyogo
- Assignee: DUNLOP SPORTS CO. LTD.
- Current Assignee: DUNLOP SPORTS CO. LTD.
- Current Assignee Address: JP Kobe-Shi, Hyogo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2014-263950 20141226
- Main IPC: A63B37/14
- IPC: A63B37/14 ; A63B37/00

Abstract:
A golf ball has a large number of dimples 10 on a surface thereof. The dimples 10 include a plurality of small dimples 10S each having an area of less than 8.0 mm2, and a plurality of large dimples 10L each having an area of equal to or greater than 8.0 mm2. A ratio PS of a sum of areas of all the small dimples 10S to a surface area of a phantom sphere of the golf ball is less than 2.0%. The number NL of the large dimples 10L is equal to or greater than 250 but less than 450. The number NL of the large dimples 10L and a degree G of uniformity of areas of the large dimples 10L satisfy the following mathematical formula (II): G
Public/Granted literature
- US20160184645A1 GOLF BALL Public/Granted day:2016-06-30
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