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. 30, 2007
Filed:
Jun. 10, 2002
Naoki Yukawa, Kobe, JP;
Kazumi Yamazaki, Kobe, JP;
Takashi Tanaka, Kobe, JP;
Yasuo Wada, Kobe, JP;
Makoto Hizume, Kobe, JP;
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
Inside a tread portion and outside a belt layer along the radius direction thereof is formed a belt layer comprising a band ply formed by winding spirally a tape- and belt-form ply wherein one ore plural band cords are stretched and arranged to be embedded in a topping rubber. In this band ply, the elongation resistance value K (unit: N' cord number/cm) specified by the following equation is set within the range of 99 to 700 when the sectional area of the band cord or each of the band cords is represented by S (unit: mm), the modulus thereof when the elongation thereof is 2% is represented by M (unit: N/mm), the band cord arrangement density per cm of the band ply is represented by D (unit: cord number/cm).  (1)