Heat assisted magnetic recording with heat profile shaping

Details Heat assisted magnetic recording with heat profile shaping Heat assisted magnetic recording with heat profile shaping

2004-09-20

2008-08-12

Pak, Sung (Department: 2874)

Optical waveguides

Planar optical waveguide

C385S039000, C369S013320

Reexamination Certificate

active

07412143

ABSTRACT:
A transducer comprises a conductive pin and a waveguide for directing electromagnetic radiation onto the pin, wherein the pin is configured to create a rectangular flat top field distribution at a surface of a storage medium positioned adjacent to an end of the pin, leading to a flat top thermal profile within the storage medium. A second pin can be included in the transducer. Recording heads that include the transducer, disc drives that include the recording head, and a method of heating a portion of a storage medium that is performed by the recording head, are also included.

REFERENCES:
patent: 4947034 (1990-08-01), Wickramasinghe et al.
patent: 4994818 (1991-02-01), Keilmann
patent: 5004307 (1991-04-01), Kino et al.
patent: 5121256 (1992-06-01), Corle et al.
patent: 5125750 (1992-06-01), Corle et al.
patent: 5286971 (1994-02-01), Betzig et al.
patent: 5559330 (1996-09-01), Murashita
patent: 5602820 (1997-02-01), Wickramasinghe et al.
patent: 5664036 (1997-09-01), Islam
patent: 5883872 (1999-03-01), Kino
patent: 5930434 (1999-07-01), Mowry et al.
patent: 5982716 (1999-11-01), Kino et al.
patent: 6043940 (2000-03-01), Kamiyama et al.
patent: 6055220 (2000-04-01), Mamin et al.
patent: 6091694 (2000-07-01), Späth
patent: 6275453 (2001-08-01), Ueyanagi et al.
patent: 6298026 (2001-10-01), Suzuki et al.
patent: 6320708 (2001-11-01), Ueyanagi et al.
patent: 6396776 (2002-05-01), Ueyanagi
patent: 6408123 (2002-06-01), Kuroda et al.
patent: 6473385 (2002-10-01), Saito
patent: 6532125 (2003-03-01), Hamann et al.
patent: 2001/0004348 (2001-06-01), Ueyanagi
patent: 2001/0009541 (2001-07-01), Ueyanagi
patent: 2002/0056816 (2002-05-01), Stark
patent: 2002/0080709 (2002-06-01), Park et al.
patent: 2002/0114567 (2002-08-01), Novotny et al.
patent: 2003/0128633 (2003-07-01), Batra et al.
patent: 2003/0128634 (2003-07-01), Challener
patent: 2003/0137772 (2003-07-01), Challener
patent: 2003/0184903 (2003-10-01), Challener
patent: 2004/0001420 (2004-01-01), Challener
patent: 2004/0008591 (2004-01-01), Johns et al.
patent: 2005/0078565 (2005-04-01), Peng et al.
patent: 1128372 (2001-08-01), None
patent: 2001-256664 (2001-09-01), None
S. M. Mansfield et al., “Solid Immersion Microscope,”Appl. Phys. Lett, vol. 57, No. 24, Dec. 10, 1990, pp. 2615-2616.
B. D. Terris et al., “Near-Field Optical Data Storage Using A Solid Immersion Lens,”Appl. Phys. Lett, vol. 65, No. 4, Jul. 25, 1994, pp. 388-390.
Y. Martin et al., “Optical Data Storage Read Out at 256 Gbits/in2,”Appl. Phys. Lett., vol. 71, No. 1, Jul. 7, 1997, pp. 1-3.
H. F. Ghaemi et al., “Surface Plasmons Enhance Optical Transmission Through Subwavelength Holes”,Physical Review B, vol. 58, No. 11, Sep. 15, 1998, pp. 6779-6782.
K. Ueyanagi et al., “Proposal of a Near-Field Optical Head Using a New Solid Immersion Mirror,”Jpn. J. Appl. Phys., vol. 39, Part 1, No. 2B, Feb. 2000, pp. 888-891.
Y.-J. Kim et al., “Fabrication of Micro-Pyramidal Probe Array with Aperture for Near-Field Optical Memory Applications,”Jpn. J. Appl. Phys., vol. 39, Part 1, No. 3B, Mar. 2000, pp. 1538-1541.
S. Quabis et al., “Focusing Light to a Tighter Spot,”Optics Communications, vol. 179, May 25, 2000, pp. 1-7.
R. Coehoorn et al., “Hybrid Recording,”Magnetic Storage Systems Beyond 2000, Proceedings of the NATO-ASI on Rhodes (Greece), Jun. 2000, pp. 1-17.
T. D. Milster et al., “Super-Resolution by Combination of a Solid Immersion Lens and an Aperture,”Jpn. J. Appl. Phys., vol. 40, Part 1, No. 3B, Mar. 2001, pp. 1778-1782.
Y.-J. Kim et al., “Parallel Recording Array Head of Nano-Aperture Flat-Tip Probes for High-Density Near-Field Optical Data Storage,”Jpn. J. Appl. Phys., vol. 40, Part 1, No. 3B, Mar. 2001, pp. 1783-1789.
H. Hatano et al., “Plano-Convex Solid Immersion Mirror with a Small Aperture for Near-Field Optical Data Storage,”Optical Review, vol. 9, No. 2, Feb. 4, 2002, pp. 66-69.
T. E. Schlesinger et al., “An Integrated Read/Write Head for Hybrid Recording,”Jpn. J. Appl. Phys., vol. 41, Part 1, No. 3B, Mar. 2002, pp. 1821-1824.
K. Goto et al., “Microoptical Two-Dimensional Devices for the Optical Memory Head of an Ultrahigh Data Transfer Rate and Density System Using a Vertical Cavity Surface Emitting Laser (VCSEL) Array,”Jpn. J. Appl. Phys., vol. 41, Part 1, No. 7B, Jul. 2002, pp. 4835-4840.
B. B. Goldberg et al., “Immersion Lens Microscopy of Photonic Nanostructures and Quantum Dots,”IEEE Journal of Selected Topics in Quantum Electronics, vol. 8, No. 5, Sep./Oct. 2002, pp. 1051-1059.
C. W. Lee et al., “Feasibility Study On Near Field Optical Memory Using A Catadioptric Optical System,” Samsung Electronics Co., Ltd., Korea, pp. WA4-1/137-WA4-3/139, date unknown.

Affiliated with

Also associated with

Rating

Heat assisted magnetic recording with heat profile shaping does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat assisted magnetic recording with heat profile shaping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat assisted magnetic recording with heat profile shaping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4020035