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:
Mar. 20, 2007
Filed:
Mar. 26, 2004
Norikazu Ninomiya, Osaka, JP;
Kenji Onoda, Kashihara, JP;
Masao Ogawa, Osaka, JP;
Yuri Naka, Katano, JP;
Norikazu Ninomiya, Osaka, JP;
Kenji Onoda, Kashihara, JP;
Masao Ogawa, Osaka, JP;
Yuri Naka, Katano, JP;
Mizuno Corporation, Osaka, JP;
Abstract
The present invention provides a multi-piece golf ball comprising a core, a first intermediate layer, a second intermediate layer, and a cover, wherein the first intermediate layercomprises a plurality of ribsformed on the core; the second intermediate layeris placed in concave portions surrounded by the ribs; and the coverforms an outermost layer; with each of the ribs extending so that its width increases from the cover side to the core side; the concave portions being shaped into a funnel-like form by the side surfaces of the ribs; the hardness of the core, the first intermediate layerand the second intermediate layerbeing different from each other; and the hardness of the first intermediate layerbeing greater than that of the second intermediate layer