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:
Aug. 15, 2023
Filed:
Aug. 06, 2021
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Toshiyuki Takubo, Hyogo, JP;
Takahiro Sajima, Hyogo, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Abstract
A golf ball includes a core and a cover positioned outside the core. An n-layer (n is a natural number) partial mid layer is provided between the core and the cover. An area of the core in a region where the cover is laminated thereon is not less than 5.0% and not greater than 95.0% of a surface area of a phantom sphere having a radius equal to an average value of a distance from a central point of the core to a surface of the core. In an outer surface of the golf ball, a color difference ΔE1 based on a CIELAB color system between a region C where the cover is directly laminated on the core and a region M where the cover is laminated on the partial mid layer is not less than 20.0.