The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2005
Filed:
Jan. 25, 2002
Applicants:
Yoichi Akagami, Akita, JP;
Yukichi Satou, Honjyo, JP;
Chikayoshi Yamamoto, Ohta-ku, JP;
Inventors:
Assignee:
Governor of Akita prefecture, Akita, JP;
Primary Examiner:
Int. Cl.
CPC ...
B24B001/00 ;
U.S. Cl.
CPC ...
Abstract
A polishing method with a polishing apparatus includes an electrode constituted as a plurality of electrode elements, a device of driving the electrode, and dielectric abrasive particles disposed between the electrode and a workpiece. Polishing pressure is applied to the particles by a Coulomb force generated when an alternating-current voltage is applied to the electrode.