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. 02, 2013
Filed:
Nov. 25, 2008
Hideki Otsuji, Kobe, JP;
Hideki Otsuji, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
To improve the steering stability on a wet road surface. A land ratio of a shoulder portion Sh of a tread portionis 57 to 72%, and a land ratio of a center portion Ce is 40 to 55%. In the center portion Ce, one row block made up of center blocksis formed. Each of the center blockshas its width gradually reduced from a position establishing an axial maximum width BW toward both a leading end and a trailing end relative to the tire rotating direction, each of the center blocks being provided with, at the leading end thereof, a tip portionthat sharpens toward the leading end, and being provided with, at the trailing end thereof, a concave portionthat smoothly concaves toward the leading end. In each of the center blocks, a ratio (BL/BW) between the axial maximum width BW and a maximum length BL in the circumferential direction is 1.00 to 1.20.