Developing blade and its manufacturing method
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United States of America Patent
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Aug 23, 2011
Grant Date -
Jul 1, 2010
app pub date -
Mar 28, 2007
filing date -
Mar 31, 2006
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Abstract
A developing blade (1) comprises a support member (2) having a coefficient of elasticity in the range of 0.5.times.10.sup.4 to 4.0.times.10.sup.4 kg/mm.sup.2 and a moment of inertia of area (Iz) in the range of 6.5E-04 to 1.2E-02, and a blade member (4) located on one surface of the support member (2) along one side edge (2A). The blade member (4) is made of a rubber material having a 25% modulus of no greater than 0.85 MPa, and has a moment of inertia of area (Iz) in the range of 8E-02 to 1.2E+01, and the blade member (4) has a warping of no greater than 10 mm in the longitudinal direction.
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