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. 18, 2017
Filed:
Jun. 18, 2013
Bridgestone Corporation, Tokyo, JP;
Naoya Ochi, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
By adopting an appropriate block pattern, a pneumatic tire guarantees the tire ground contact area without impairing drainage performance and enhances on-ice performance. On the tread are formed land portions () defined by at least one circumferential main groove () extending in the tire circumferential direction and blocks () in a shoulder land portion () located outermost in the tire width direction among the land portions (), the blocks () being defined by narrow grooves () with a groove width narrower than that of the circumferential main groove () and by at least one auxiliary groove () with a groove width that increases outward in the tire width direction at least in a region not adjacent to the circumferential main groove. The area of the tread surface of each of the blocks () is in a range of 100 mmto 200 mm.