Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-05-12
2010-06-01
Mullis, Jeffrey C (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S068000
Reexamination Certificate
active
07728071
ABSTRACT:
A gear for an electric power steering device for reducing the rotation speed of an electric motor for steering assist with a reduction gear mechanism and transmitting the rotation to a steering mechanism, the gear being incorporated and used in the reduction gear mechanism, wherein at least the teeth of the gear are formed from a resin composition of a non-reinforced type comprising (a) a polyamide resin having a carboxyl group at least at a terminal end; (b) 0.5-5 wt. % a polycarbodiimide compound, and (c) 3-15 wt. % an elastic material modified with a reactive functional group.
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Arai Hirokazu
Kurokawa Takanori
Shinohara Ken-ichi
E. I. Du Pont De Nemours and Company
Järnholm Arne
JTEKT Corporation
Mullis Jeffrey C
Smith Loretta
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