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.

Date of Patent:
Oct. 07, 2025

Filed:

Jun. 23, 2022
Applicant:

Bridgestone Corporation, Tokyo, JP;

Inventors:

Isao Kuwayama, Tokyo, JP;

Shintaro Hatanaka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 3/04 (2006.01); B60C 11/00 (2006.01); B60C 11/03 (2006.01); B60C 11/12 (2006.01);
U.S. Cl.
CPC ...
B60C 11/0332 (2013.01); B60C 3/04 (2013.01); B60C 11/1204 (2013.01); B60C 2011/1209 (2013.01); B60C 2200/04 (2013.01);
Abstract

A pneumatic radial tire for passenger vehicles that satisfies a defined relationship between sectional width SW and outer diameter OD of the tire, and includes only two circumferential main grooves extending in a tire circumferential direction on a tread contact surface, a barycenter of the circumferential main grooves being positioned in a half portion of the tire on a vehicle-mounted outward side, which is one side of the tire in a tread width direction with a tire equatorial plane as a boundary. A drop height (or ground contact length relationship, or tread gauge relationship) is also defined.


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