Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Xiaoming Gu0
Kenji Maruo0
Date of Patent
July 6, 2010
Patent Application Number
12140461
Date Filed
June 17, 2008
Patent Primary Examiner
Patent abstract
A friction plate 22 is formed by pasting a friction member 25 to a core plate 23 of a metal. Numeral 24 designates a spline teeth fitted to a torque transmitting member. The friction member has a nonwoven cloth including aramide fiber and at least one of carbon fiber, carbonized fiber, cellulose fiber and rayon. A thermo-hardening resin includes a friction conditioner, and is impregnated to the friction member. Further, a distribution rate of the friction conditioner is made to be high at a friction surface and is gradually lowered toward a bottom surface. Further, in manufacturing the wet type friction member, a roll, an ultrasonic wave transmitter, a vacuuming apparatus on the like is used.
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