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:
Oct. 05, 2004
Filed:
Jun. 14, 2002
Applicant:
Inventors:
Hidetoshi Honda, Miyagi, JP;
Takashi Kanou, Miyagi, JP;
Hitoshi Wako, Miyagi, JP;
Satoshi Sekino, Miyagi, JP;
Ryoichi Hiratsuka, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ; B32B 1/504 ; B32B 5/16 ; B32B 1/900 ;
U.S. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ; B32B 1/504 ; B32B 5/16 ; B32B 1/900 ;
Abstract
A cleaning tape comprising a nonmagnetic base film, an evaporated metal layer, specifically a magnetic layer or electroconductive layer, formed on the nonmagnetic base film, an inorganic protective film formed on the evaporated metal layer, and surface projections formed on the nonmagnetic base film by particles having a predetermined diameter and density. The tape has a low electric resistivity, a low head abrasion, and a sufficient cleaning effect suitable for cleaning a magnetoresistive type head.