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:
Aug. 17, 2004
Filed:
Feb. 19, 2002
Applicant:
Inventors:
Chun-Hung Lin, I-Lan, TW;
Chin-Ching Wu, Hsinchu, TW;
Yun-Sheng Chung, Hsinchu, TW;
Chin-Jyi Wu, KaoHsiung, TW;
Yung-Chen Peng, Hsinchu, TW;
Yu-Chuan Tu, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D 1/700 ; C25C 7/00 ; C25B 1/500 ;
U.S. Cl.
CPC ...
C25D 1/700 ; C25C 7/00 ; C25B 1/500 ;
Abstract
An electropolishing device having: an electrode device, which includes a positive electrode guide, a negative electrode guide, a positive electrode plate, a negative electrode plate and a negative working electrode; a clamping apparatus, which includes at least an insulated screw, an upper insulated piece and a lower insulated piece; and an insulated structure, which includes an upper insulated cover and a lower insulated cover.