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. 20, 2010
Filed:
Apr. 01, 2005
Michinori Fujisawa, Okayama, JP;
Sadahiro Ishii, Osaka, JP;
Taketoshi Saeki, Hiroshima, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Mikasa Corporation, Hiroshima-shi, JP;
Abstract
The present invention provides a gas filling-type ball for sports which has excellent non-slip property and sufficient mechanical strength such as surface abrasion resistance, and which can be particularly suitably used in a field of a material for a ball such as a basketball, American football, or rugby ball. The present invention relates to a ball used for any one of basketball, handball, rugby ball, and American football, comprising a sheet having formed thereon a cover layer including substantially continuous pebbles and hemispherical valleys adjoining the pebbles formed on a surface of a base fabric, in which: a height difference between the pebbles and the valleys is 50 to 1,000 μm, a vertical projected area of each of the adjoining valleys is 3 to 30 mm, and an average distance between the valleys is 0.5 to 3 mm.