Roll or roller – Concentric layered annulus – Specific composition
Reexamination Certificate
2007-02-06
2007-02-06
Jimenez, Marc (Department: 3726)
Roll or roller
Concentric layered annulus
Specific composition
C492S053000
Reexamination Certificate
active
10705941
ABSTRACT:
A conductive roller including a core metal and a conductive elastic layer disposed on a peripheral surface of the core metal. The conductive roller has an electrostatic capacity not more than 50 pF at 100 Hz and an electric resistance not less than 105Ω nor more than 109Ω at an applied voltage 1000V. An electrostatic capacity C (L) at an alternating low frequency (L) and an electrostatic capacity C (H) at an alternating high frequency (H) satisfy the following relationship:in-line-formulae description="In-line Formulae" end="lead"?0<(C(L)−C(H))/(log10Hz(H)−log10Hz(L))<10.in-line-formulae description="In-line Formulae" end="tail"?
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Hattori Takayuki
Ochi Jun
Uesaka Ken-ichi
Birch, Stewart, Kolasch and Birch LLP
Jimenez Marc
Sumitomo Rubber Industries Ltd.
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