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 6999278 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 14, 2006

Filed:

Jun. 17, 2003
Applicants:

Hidetoshi Honda, Miyagi, JP;

Takashi Kanou, Miyagi, JP;

Hitoshi Wako, Miyagi, JP;

Satoshi Sekino, Miyagi, JP;

Ryoichi Hiratsuka, Miyagi, JP;

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;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/41 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a cleaning tape capable of attaining sufficient cleaning effects while preventing electrostatic discharge damage to magnetoresistive heads or changes in reproduced output due to excessive head wear. The cleaning tape includes a non-magnetic substrate, surface protrusionsformed on the non-magnetic substratewith particleshaving a particle diameter of 10 to 40 nm at a density of 300×10to 5000×10mm, a metal evaporated film(preferably an electrically conductive layer such as an alloy layer containing Co as a primary component, an Al layer or the like) having a thickness of 10 to 200 nm and an inorganic protection filmhaving a thickness of 3 to 50 nm formed on the metal evaporated film


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