Magnetic recording medium having narrow pulse width...

Details Magnetic recording medium having narrow pulse width... Magnetic recording medium having narrow pulse width...

2006-10-03

2006-10-03

Bernatz, Kevin M. (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Binder media

C428S840000, C428S844700, C428S844710

Reexamination Certificate

active

07115331

ABSTRACT:
A dual-layer magnetic recording medium including a non-magnetic substrate having a front side and a back side, a lower support layer formed over the front side and a magnetic upper recording layer formed over the lower layer, wherein the magnetic layer contains a volume concentration of at least about 35% of a magnetic metallic particulate pigment having a coercivity of at least about 2000 Oersteds (Oe), and a binder system for the pigment. The magnetic recording medium exhibits an orientation ratio greater than 2.0, a pulsewidth (PW50) value of less than about 500 nm, and a remanence-thickness product, Mr*t, of less than about 5.0 memu/cm2.

REFERENCES:
patent: 5501903 (1996-03-01), Erkkila et al.
patent: 5510187 (1996-04-01), Kumar et al.
patent: 5827600 (1998-10-01), Ejiri et al.
patent: 6099895 (2000-08-01), Mayo et al.
patent: 2003/0108772 (2003-06-01), Noguchi et al.
About Maxell News Release, “Maxell LTO Ultrium 2 tape first to pass stringent compliance verification program,” http://www.maxell.co.jp/e/release/20021120.html, 2 pages, printed Mar. 31, 2005.
Fujifilm Press Center—News: Computer Products, “Fujifilm Completes LTO Ultrium Generation Media Qualification Process,” http://www.fujifilm.com/JSP/fuji/epartners/PRNewsDetail.jsp?DBID=NEWS—508397, 2 pages, printed Mar. 31, 2005.
Ultrium LTO Press Release, “LTO Program Announces LTO Ultrium Generation 2 Compliance-Verified Licensees,” 3 pages, dated Mar. 27, 2003.

Affiliated with

Also associated with

Rating

Magnetic recording medium having narrow pulse width... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic recording medium having narrow pulse width..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording medium having narrow pulse width... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717736