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. 08, 1996
Filed:
Mar. 04, 1994
Kikuji Kawakami, Miyagi, JP;
Hiroyuki Osaki, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
An apparatus for recording and reproducing a tape-shaped recording medium, which is capable of minimizing the effect of adsorbed water present at the interface between the tape and a sliding member and hence enables the tape to travel stably without sticking to the sliding member even under conditions close to moisture condensational conditions. An aluminum alloy is employed as a material for a sliding member such as a fixed drum, stationary tape guides, etc. on which a video tape slides, and a large number of projections are formed on the surface of the sliding member. A material of high water repellency is formed on the surface of the sliding member for the purpose of minimizing the effect of contact portions formed by the video tape and the projections of the sliding member and the effect of bonded portions of adsorbed water produced around the contact portions (at the interface). More specifically, the surface of the sliding member is formed with an electrolessly plated nickel film containing polytetrafluoroethylene particles.