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. 14, 2015
Filed:
Jun. 24, 2009
Naoya Ochi, Higashimurayama, JP;
Naoya Ochi, Higashimurayama, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
In a present invention, in a pneumatic tireA, a circumferential grooveextending in a tire circumferential direction is formed by land portionsconstituting a tread surfacecoming into contact with a road surface. A flat groove portionand an in-groove land portionare formed in the circumferential groove. The flat groove portionis a flat surface of a groove bottomof the circumferential groove. The in-groove land portionis raised toward the tread surfaceside from the groove bottomof the circumferential groove. Multiple narrow groovesextending in a tread width direction are formed in the in-groove land portion. A wide-groove width Wof the circumferential groovein the tread width direction is 5 to 30% of a tread width TW of the tread surface in the tread width direction.