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:
Sep. 28, 2010
Filed:
Dec. 18, 2007
Yoshimasa Hashimoto, Hiratsuka, JP;
Yoshimasa Hashimoto, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
There is provided a pneumatic tire capable of improving on-snow performance on a snowy road surface including a sherbet-like snowy road surface without deteriorating on-ice performance. An assistant grooveless in width than the main groovesextends in the circumferential direction TC of the tire in each middle landThe lateral groovesinclude right and left first lateral groovesextending from the center landoutward in the widthwise direction of the tire beyond the tire ground contact ends TF, and right and left second lateral groovesextending from the middle landsoutward in the widthwise direction of the tire beyond the tire ground contact ends TF, the first lateral groovesand second lateral groovesbeing alternately disposed in the circumferential direction TC of the tire. The groove area percentage in the center region portionC of the tread surfaceis less than the groove area percentage in the ground contact surface region G of the tread surface