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:
Oct. 15, 2002
Filed:
Jul. 07, 2000
Applicant:
Inventor:
Isamu Tsumori, Amagasaki, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 1/00 ; B60C 1/100 ;
U.S. Cl.
CPC ...
B60C 1/00 ; B60C 1/100 ;
Abstract
A vehicle tire comprises a tread rubber forming a ground contacting face of the tire; in a range from the ground contacting face to a certain depth, the tread rubber comprising circumferentially extending wide parts made of a carbon-black-reinforced rubber composition and circumferentially extending narrow parts made of a silica-reinforced rubber composition, which wide parts and narrow parts alternate in the tire axial direction; the axial width of each narrow part being in the range of from 0.5 to 1.5 mm; and the number of the narrow parts counted across a ground contacting width of the ground contacting face being in a range of from 3 to 11.