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:
Mar. 27, 2007
Filed:
Feb. 15, 2005
Kazuomi Kobayashi, Higashimurayama, JP;
Tomohisa Nishikawa, Kodaira, JP;
Kenji Matsuo, Kodaira, JP;
Hiroki Sawada, Kodaira, JP;
Kazuomi Kobayashi, Higashimurayama, JP;
Tomohisa Nishikawa, Kodaira, JP;
Kenji Matsuo, Kodaira, JP;
Hiroki Sawada, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
There is provided a pneumatic tire having an aspect ratio of not less than 60 and considerably improving run flat durability as compared with the conventional type of the run flat tire, wherein at least one cushion rubber layer having a loss tangent lower than a loss tangent (tan δ) of a coating rubber for cords of a carcass ply is arranged between an end portion of a belt and a reinforcing rubber layer in a shoulder region and between mutually adjacent tire constitutional members. And also, when the carcass is comprised of plural plies, at least one ply is separated off in a zone beneath the belt, whereby the ride comfort against vibrations can be more improved.