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:
Aug. 26, 2014
Filed:
Sep. 11, 2009
Applicant:
Takahiro Yamakawa, Hiratsuka, JP;
Inventor:
Takahiro Yamakawa, Hiratsuka, JP;
Assignee:
The Yokohama Rubber Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 11/12 (2006.01); B60C 11/03 (2006.01);
U.S. Cl.
CPC ...
B60C 11/12 (2013.01); B60C 2011/1213 (2013.01); B60C 2011/0388 (2013.01); B60C 2011/1254 (2013.01); B60C 2011/1209 (2013.01); B60C 2011/1268 (2013.01); B60C 11/0302 (2013.01); B60C 11/0306 (2013.01); Y10S 152/03 (2013.01);
Abstract
A pneumatic tire has a tread surface for simultaneously achieving both enhanced on-ice performance and enhanced durability. The pneumatic tire includes sipes extending in the width direction of the tire that are arranged at intervals in the circumferential direction of the tire at least in shoulder blocks that are divided by longitudinal grooves extending in the circumferential direction of the tire and by lateral grooves extending in the width direction of the tire. Open sipes and closed sipes are alternately arranged, and the depth of the open sipes is less than the depth of the closed sipes.