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, 2011
Filed:
Mar. 16, 2009
Makoto Watari, Yokohama, JP;
Katsumi Shimohira, Yokohama, JP;
Shuichi Nagashima, Yokohama, JP;
Nippon Shaft Co., Ltd, Yokohama-shi, Kangawa, JP;
Abstract
A bat for baseball or softball of the present invention includes a first tube having an impact part, a step part and a stopper part, a cylindrical second tube, a fixing component being inserted between the first tube and second tube, the step part having an exterior diameter larger than that of the impact part and smaller than an interior diameter of the second tube, the stopper part having an exterior diameter larger than that of the step part and larger than the interior diameter of the second tube, the second tube is arranged on an exterior periphery of the impact part, one end of the second tube is fixed between the stopper part and the step part by an adhesive and the other end is fixed by an adhesive on the fixing component, and a crevice is formed between the first tube and the second tube.