Oxide magnetic recording layers for perpendicular recording...

Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C428S836200, C428S836300

Reexamination Certificate

active

07862913

ABSTRACT:
An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower sublayer of a non-oxide. One structure includes an upper sublayer comprised of a Silicon-oxide, while a lower sublayer is comprised of a Tantalum-oxide. The structures provide for increased coercivity and corrosion resistance.

REFERENCES:
patent: 5516547 (1996-05-01), Shimizu et al.
patent: 5679473 (1997-10-01), Murayama et al.
patent: 5969910 (1999-10-01), Imagawa et al.
patent: 6413608 (2002-07-01), Bian et al.
patent: 6602621 (2003-08-01), Matsunuma et al.
patent: 6641901 (2003-11-01), Yoshida et al.
patent: 6652998 (2003-11-01), Segawa et al.
patent: 6686070 (2004-02-01), Futamoto et al.
patent: 6699600 (2004-03-01), Shimizu et al.
patent: 6723458 (2004-04-01), Shimizu et al.
patent: 6767651 (2004-07-01), Uwazumi et al.
patent: 6777066 (2004-08-01), Chang et al.
patent: 6835475 (2004-12-01), Carey et al.
patent: 6881503 (2005-04-01), Lu et al.
patent: 6916557 (2005-07-01), Hirayama et al.
patent: 2002/0028356 (2002-03-01), Kawato et al.
patent: 2002/0028357 (2002-03-01), Shukh et al.
patent: 2002/0058160 (2002-05-01), Oikawa et al.
patent: 2002/0127433 (2002-09-01), Shimizu et al.
patent: 2002/0136929 (2002-09-01), Oikawa et al.
patent: 2003/0099869 (2003-05-01), Oikawa et al.
patent: 2003/0104253 (2003-06-01), Osawa et al.
patent: 2003/0170500 (2003-09-01), Shimizu et al.
patent: 2004/0000374 (2004-01-01), Watanabe et al.
patent: 2004/0013909 (2004-01-01), Shimizu et al.
patent: 2004/0023073 (2004-02-01), Shimizu et al.
patent: 2004/0038083 (2004-02-01), Hirayama et al.
patent: 2004/0057156 (2004-03-01), Lee et al.
patent: 2004/0185308 (2004-09-01), Koda et al.
patent: 2004/0224185 (2004-11-01), Nakamura et al.
patent: 2005/0142387 (2005-06-01), Araki et al.
patent: 2005/0153169 (2005-07-01), Watanabe et al.
patent: 2006/0121319 (2006-06-01), Wu et al.
patent: 2008/0138662 (2008-06-01), Berger et al.
patent: 0140513 (1985-05-01), None
patent: 57-30118 (1982-02-01), None
patent: 60-64413 (1985-04-01), None
patent: 61-26927 (1986-02-01), None
patent: 62-132217 (1987-06-01), None
patent: 62-132224 (1987-06-01), None
patent: 62-162222 (1987-07-01), None
patent: 63-98827 (1988-04-01), None
patent: 63-201912 (1988-08-01), None
patent: 63-281219 (1988-11-01), None
patent: 1-287820 (1989-11-01), None
patent: 3-160616 (1991-07-01), None
patent: 6-103555 (1994-04-01), None
patent: 8-63734 (1996-03-01), None
patent: 2000-348327 (2000-12-01), None
patent: 2002-25030 (2002-01-01), None
patent: 2002-183927 (2002-06-01), None
patent: 2003-168207 (2003-06-01), None
patent: 2004-22138 (2004-01-01), None
patent: 2004-259423 (2004-09-01), None
patent: 2005-93040 (2005-04-01), None
patent: 2005-166204 (2005-06-01), None
patent: WO2004/090874 (2004-10-01), None
patent: WO 2004090874 (2004-10-01), None
Byeon et al., Synthetic Antiferromagnetic Soft Underlyaers for Perpendicular Recording Media, Jul. 2004, IEEE Transactions on Magnetics, vol. 40, No. 4, p. 2386.
Mukai et al., “Microstructure Improvement of Thin Ru Underlayer for CoCrPt-SiO2 Granular . . . ,” IEEE Trans. MAG 41, No. 10, pp. 3169-3171, Oct. 2005.
Mukai et al., “Signal-to-media-noise ratio improvement of CoCrPt-SiO2 granular perpendicular media . . . ,” J. of Appl. Phys. 97, 10N119 1-3 (2005).
Uwazumi et al., “CoPtCr-SiO2 Granular Media for High-Density Perpendicular Recording,” IEEE Trans. MAG. 39, No. 4, Jul. 2003, pp. 1914-1918.
Chiba et al., “Structure and Magnetic Properties of Co-Pt-Ta2O5 Film for Perpendicular Magnetic Recording Media,” J. of MMM 287 (2005) pp. 167-171.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Oxide magnetic recording layers for perpendicular recording... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxide magnetic recording layers for perpendicular recording..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxide magnetic recording layers for perpendicular recording... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2677873

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.