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:
Jun. 10, 2014
Filed:
Jan. 15, 2010
Naoya Ochi, Higashimurayama, JP;
Naoya Ochi, Higashimurayama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
To improve water evacuation property while preventing uneven wear, as well as to significantly improve the on-ice/snow performances by optimizing a tread pattern. This pneumatic tire has, in at least a part of a tread portion, a small block group G, the small block group including a plurality of small blocksarranged close together. The small block group Gcomprises at least one circumferential main groove positionedincluding see-through groove portion which linearly extends in the tread circumferential direction and at least one rib-like land portionprovided adjacently to the circumferential main groove and forming a groove side faceof the circumferential main grooveand continuously extending in the circumferential direction. A number density D of the small blocks is set within a range of 0.003 to 0.04 (pieces/mm), the number density D representing the number of the small blocks per unit of an actual ground contact area of the small block group.