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.

Date of Patent:
Feb. 05, 2008

Filed:

Jun. 08, 2005
Applicants:

Norikazu Ninomiya, Osaka, JP;

Kenji Onoda, Kashihara, JP;

Masao Ogawa, Osaka, JP;

Yuri Naka, Katano, JP;

Inventors:

Norikazu Ninomiya, Osaka, JP;

Kenji Onoda, Kashihara, JP;

Masao Ogawa, Osaka, JP;

Yuri Naka, Katano, JP;

Assignee:

Mizuno Corporation, Osaka-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-piece golf ball has a core (), an interlayer (), and a cover (), the core () being provided with a spherical main part () and a plurality of ribs () formed on the main part (), the interlayer () being accommodated in depressions () surrounded by the ribs () and having a thickness substantially the same as the height of the ribs (), each of the ribs () extending in such a manner that the width thereof becomes greater from the cover towards the core, each of the depressions () being formed into a cone-like shape by side faces of the ribs (), and the hardness of the interlayer () being less than that of the core (). This structure achieves satisfactory soft feeling and high bounce resilience.


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