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:
Dec. 29, 2020
Filed:
Nov. 28, 2018
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Takahiro Sajima, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
A golf ball has a plurality of dimplesand a landon a surface thereof. The golf ball further has a large number of minute projectionsformed on surfaces of the dimplesand the land. An average depth Fav of the dimplesand an average height Hav of the minute projections satisfy the following mathematical formula (1).≥0.050  (1)A ratio M (%) of a sum of areas of all the dimplesrelative to a surface area of a phantom sphere of the golf ball and an average value Pav (μm) of pitches P each between a minute projectionand another minute projectionadjacent to this minute projectionsatisfy the following mathematical formula (2).>0.3  (2)