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. 23, 2007
Filed:
Aug. 20, 2003
Masato Suzuki, Toyota, JP;
Yoshihito Fujimaki, Aichi-ken, JP;
Masayuki Mizuno, Seto, JP;
Hideto Nakagawa, Aichi-ken, JP;
Masato Suzuki, Toyota, JP;
Yoshihito Fujimaki, Aichi-ken, JP;
Masayuki Mizuno, Seto, JP;
Hideto Nakagawa, Aichi-ken, JP;
Aisin Kako Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A wet-type segmented friction material has a tape-like friction material substrate which is passed through and pressed between a roller having a dent at a center and a flat roller. At the same time, the friction material substrate is heated from an inside and an outside of the rollers so as to carry out a heat press compression processing. Then, a processed friction material substrate has a predetermined cross-section. The processed friction material substrate is cut into segment pieces each having a segment shape by a rotary push cutter having a sharp cutting edge. A cut position of the segment piece is selected such that two straight lines at two lateral sides of the segment shape is located within an area of a compressed portion of the processed friction material substrate. That is, a stepped or sunken compressed portion is provided on both sides of the segment piece.