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:
Jun. 24, 2003
Filed:
Nov. 09, 2001
Naoki Yukawa, Kobe, JP;
Kazumi Yamazaki, Kobe, JP;
Takashi Tanaka, Kobe, JP;
Yasuo Wada, Kobe, JP;
Makoto Hizume, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic tire comprises a breaker disposed radially outside a carcass crown portion, and a band disposed radially outside of the breaker and comprising a full-width band ply extending over the substantially overall width of the breaker, wherein a cord or cords of said full-width band ply existing in a tread crown region satisfy the following conditions: T>0.8; 0≦K+6.67T−21.7; 0≦45−10T−K; 0≦106.8−57.5T−K; and 7≦E≦13, wherein the symbol “K” is an stretch-resistance index (N) of a cord which is defined as the product of the sectional area S in sq.mm and 2% modulus M in N/sq.mm of the cord divided by 100, the symbol “T” is an stretch in % of the cord in the tire being in its natural state without being mounted on a wheel rim, and the symbol “E” is a cord count per 1 cm width of the full-width band ply.