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:
Jul. 06, 2021
Filed:
Feb. 07, 2020
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Takahiro Sajima, Kobe, JP;
Toshiyuki Takubo, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
A golf ball has a plurality of minute projectionson a surface thereof. An average value Hav of heights H of these minute projectionsis not less than 0.5 μm and not greater than 50 μm. The surface of the golf ball has one or more first zones and one or more second zones. An average value Hav1 of the heights H of the minute projectionson these first zones is higher than an average value Hav2 of the heights H of the minute projectionson these second zones. Preferably, the average value Hav1 and the average value Hav2 satisfy the following mathematical formula.3≤(1−2)≤50