Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadakazu Miyashita0
Harumichi Koyama0
Mitsuhiro Nakamura0
Date of Patent
August 14, 2007
0Patent Application Number
113454060
Date Filed
February 2, 2006
0Patent Primary Examiner
Patent abstract
In polishing apparatus of the present invention, collars can be easily exchange. The polishing apparatus comprises: an outer pin gear having an inner gear section; an inner pin gear having an outer gear section; and a carrier having outer gear teeth, which are engaged with the inner gear section of the outer pin gear and the outer gear section of the inner pin gear so as to rotate and move the carrier around the inner pin gear. At least one of the inner gear section and the outer gear section includes gear teeth, each of which comprises: a pin proper being fixed to a pin ring and extended upward therefrom; a cylindrical collar rotatably covering and fitting the pin proper at a fitting section.
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