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:
Dec. 02, 1997
Filed:
Aug. 26, 1996
Applicant:
Inventors:
Assignee:
President of Tohoku University, Sendai, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ; C25D / ;
U.S. Cl.
CPC ...
205324 ; 205 73 ; 205151 ;
Abstract
Disclosed is a method of manufacturing a porous alumina tube with numerous pores having a uniform shape and a uniform diameter of 5 to 200 nm and extending linearly in the vertical direction to the outer peripheral surface thereof, which comprises the steps of forming an anodized layer by anodizing the outer peripheral surface of an aluminum tube, and removing the aluminum tube after the anodized layer is formed.