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:
Jan. 21, 2014
Filed:
Aug. 31, 2006
Mitsuru Hitotsuyanagi, Osaka, JP;
Tetsuo Tatara, Osaka, JP;
Shigeo Kudo, Osaka, JP;
Osamu Fujiki, Osaka, JP;
Mitsuru Hitotsuyanagi, Osaka, JP;
Tetsuo Tatara, Osaka, JP;
Shigeo Kudo, Osaka, JP;
Osamu Fujiki, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
An object is to reduce a cycle time for fabricating a low rolling resistance pneumatic tire and to provide the same pneumatic tire. As a means therefor, in building a tread portion by winding spirally a rubber strip material whose cross section is divided into a first region made of a conductive rubber and a second region made of a non-conductive rubber in a tire circumferential direction in a partially overlapping fashion by the use of an extruding machine which extrudes continuously the rubber strip material, an area ratio of the first region relative to the cross section of the rubber strip material is made to change in a tire width direction.