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:
Sep. 06, 2005
Filed:
Dec. 08, 2000
Applicants:
Yuko Ohtani, Naniwu-ku, JP;
Atsushi Imai, Takatsuki, JP;
Kisaburo Kurobe, Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B033/14 ;
U.S. Cl.
CPC ...
Abstract
A porous impregnation material () impregnated with a gaseous-phase lubricant that vaporizes at an atmosphere temperature within an outer case () is disposed in the inside of the outer case () that incorporates a tape mechanism () having a magnetic head such as a rotary video head (). This allows the magnetic head to be in a state of being protected by a coating film of the gaseous-phase lubricant, thereby eliminating the adhesion of foreign substances other than the gaseous-phase lubricant to the magnetic head. As a result, decrease in the reading precision of magnetic data to be caused by the foreign substances can be prevented.