US Patent 7736215 Polishing tool and polishing method and apparatus using same
Patent 7736215 was granted and assigned to Disco Corporation on June, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A polishing tool comprising a support member, and polishing means fixed to the support member. The polishing means is composed of felt having a density of 0.20 g/cm3 or more and a hardness of 30 or more, and abrasive grains dispersed in the felt. A polishing method and apparatus involving pressing the polishing means against a surface of a workpiece to be polished, while rotating the workpiece and also rotating the polishing tool.
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Patent Inventor Names
Masashi Aoki0
Setsuo Yamamoto0
Sinnosuke Sekiya0
Yutaka Koma0
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Official Website
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US Patent 07736215 Polishing tool and polishing method and apparatus using same US Patent 7736215 Polishing tool and polishing method and apparatus using same
Infobox
Patent Number
077362150
Patent Number
77362150
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077362150
Date of Patent
June 15, 2010
0Patent Application Number
119873820
Date Filed
November 29, 2007
0Official Website
Patent Primary Examiner
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US Patent 07736215 Polishing tool and polishing method and apparatus using same
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07736215
Date of patent
June 15, 2010
Patent application number
11987382
Date Filed
November 29, 2007
Patent primary examiner
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