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.:

US 6857940 B1

PDF
Full Text
Expired
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:

Yoichi Akagami, Akita, JP;

Yukichi Satou, Honjyo, JP;

Chikayoshi Yamamoto, Ohta-ku, JP;

Assignee:
Attorney:
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.


Find Patent Forward Citations

Quick Actions:

Akagami, Yoichi. (2005). Polishing apparatus and method (U.S. Patent No. 6857940). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6857940

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…