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:
Jan. 07, 2020
Filed:
Feb. 11, 2019
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
A golf ball has a main bodyand a paint layerpositioned outside the main body. The main bodyhas a plurality of minute projectionson a surface thereof. The paint layerhas a thickness Tp of not less than 5 μm and not greater than 30 μm. Each minute projectionis embedded in the paint layer. An average value Hav of heights H of the minute projectionsis not less than 0.5 μm and not greater than 80% of the thickness Tp. A ratio Pp of a sum of areas of all the minute projectionsto a surface area of a phantom sphere of the golf ball is not less than 7%. An average value Dav of diameters D of the minute projectionsis not less than 5 μm and not greater than 50 μm.