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. 11, 2016
Filed:
Sep. 14, 2012
Norifumi Kameda, Hiratsuka, JP;
Isamu Kishizoe, Hiratsuka, JP;
Norifumi Kameda, Hiratsuka, JP;
Isamu Kishizoe, Hiratsuka, JP;
Abstract
A pneumatic tire including a plurality of circumferential main grooves extending in a tire circumferential direction and a plurality of land portions partitioned and formed by these circumferential main grooves in a tread portion. Additionally, the plurality of land portions have a plurality of sipes, respectively. Moreover, not less than 90% of the sipes disposed in an inner side region are constituted by two-dimensional sipes and not less than 90% of the sipes disposed in an outer side region are constituted by three-dimensional sipes. Furthermore, the tread portion has a cap rubber and an under rubber. A rubber hardness Hat −10° C. and a rubber hardness Hat 20° C. of the cap rubberin the inner side region, and a rubber hardness Hat −10° C. and a rubber hardness Hat 20° C. of the cap rubberin the outer side region have relationships such that H<Hand H<H.