Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2006-04-25
2006-04-25
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C360S016000
Reexamination Certificate
active
07033683
ABSTRACT:
A method of manufacturing a magnetic recording medium comprises steps of providing a non-magnetic substrate for a magnetic recording medium, the substrate including at least one major surface; forming a layer of a sol-gel on the at least one major surface; forming a pattern, e.g., a servo pattern in an exposed surface of the layer of said sol-gel; and converting the layer of sol-gel to a glass or glass-like layer while preserving the pattern in an exposed surface of said glass or glass-like layer. Embodiments of the invention include magnetic media including a patterned glass or glass-like layer formed from a layer of a hydrophilic sol-gel with the pattern embossed therein by means of a stamper having a hydrophilic surface including a negative image of the pattern.
REFERENCES:
patent: 4262875 (1981-04-01), Nyman et al.
patent: 4430401 (1984-02-01), Wilkinson
patent: 4522659 (1985-06-01), Prusak
patent: 4539079 (1985-09-01), Okabayashi
patent: 4723903 (1988-02-01), Okazaki et al.
patent: 4845000 (1989-07-01), Takeoka et al.
patent: 4953385 (1990-09-01), Aoki et al.
patent: 5048745 (1991-09-01), Sato et al.
patent: 5310333 (1994-05-01), Sato et al.
patent: 5480596 (1996-01-01), Okubo et al.
patent: 5503963 (1996-04-01), Bifano
patent: 5552009 (1996-09-01), Zager et al.
patent: 5669979 (1997-09-01), Elliott et al.
patent: 5756130 (1998-05-01), Umebayashi et al.
patent: 5861113 (1999-01-01), Choquette et al.
patent: 6086961 (2000-07-01), Bonyhard
patent: 6347016 (2002-02-01), Ishida et al.
patent: 2004/0058198 (2004-03-01), Wang et al.
R.L. Roncone, et al., “Embossed Gratings In Sol-Gel Waveguides: Pre-Emboss Heat Treatment Effects” Elsevier Science Publishers, B.V. (North Holland), 1991, pp. 111-117.
Ramos, et al., “Embossable Grating Couplers for Planar Waveguide Optical Sensors” Analytical Chemistry, vol. 68, No. 7, Apr. 1, 1996, p. 1245-1249.
Lukosz, et al, Embossing Technique for Fabricating Integrated Optical Components in hard Inorganic Waveguiding Materials Optics Letters, Oct. 1983, vol. 8, No. 10, pp. 537-539.
Christensen, et al, “Comparison Of Robust Coupling Techniques For Planar Waveguide Immunosensors” SPIE, vol. 1796, 1992, pp. 20-25.
Deeman Neil
Gauzner Gene
Wang Hong Ying
Bernatz Kevin M.
Seagate Technology LLC
LandOfFree
Defect-free patterning of sol-gel-coated substrates for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Defect-free patterning of sol-gel-coated substrates for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Defect-free patterning of sol-gel-coated substrates for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3580363