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:
Sep. 22, 2015
Filed:
Jun. 29, 2009
Applicants:
Akira Nakamizo, Higashiyamato, JP;
Akiyoshi Shimizu, Kodaira, JP;
Inventors:
Akira Nakamizo, Higashiyamato, JP;
Akiyoshi Shimizu, Kodaira, JP;
Assignee:
BRIDGESTONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C 11/12 (2006.01); B60C 11/13 (2006.01); B60C 11/03 (2006.01);
U.S. Cl.
CPC ...
B60C 11/13 (2013.01); B60C 11/0306 (2013.04); B60C 11/12 (2013.01); B60C 11/125 (2013.04); B60C 11/1218 (2013.04); B60C 11/1263 (2013.04); B60C 11/1281 (2013.04);
Abstract
An object the present invention is to provide a tire having a rib-like land portion and sipes provided therein, in which wear resistance has been enhanced by optimizing the shape of the sipes, while good fraction performance on a wet road surface is maintained. The tire has, in a tread portion, at least one row of rib-like land portion and sipes provided in the rib-like land portion. Further, depth of each sipe at least at one end portion thereof on the shoulder side is smaller than depth of the sipe at the remaining portions thereof.