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. 19, 2022
Filed:
Dec. 09, 2019
Mizuno Corporation, Osaka, JP;
Yohei Yamashita, Osaka, JP;
Katsuhisa Hirano, Osaka, JP;
Mizuno Corporation, Osaka, JP;
Abstract
A bat includes a ball hitting portion. The ball hitting portion includes a plurality of fiber-reinforced resin layers stacked in a radial direction relative to a center axis of the ball hitting portion. The plurality of fiber-reinforced resin layers include a first fiber-reinforced resin layer disposed at an outermost circumference in the radial direction among the plurality of fiber-reinforced resin layers. The first fiber-reinforced resin layer has a plurality of first fiber bundles and a plurality of second fiber bundles. The plurality of first fiber bundles are disposed side by side in a short side direction of each of the plurality of first fiber bundles. The plurality of second fiber bundles are disposed side by side in a short side direction of each of the plurality of second fiber bundles. The plurality of first fiber bundles and the plurality of second fiber bundles are woven across one another.