U.S. patents available from 1976 to present.
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Flying head with solid immersion lens partially mounted on a slider

Patent 5881042 Issued on March 9, 1999. Estimated Expiration Date: Icon_subject September 10, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Patent #: 5105408
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Method for providing a lubricant coating on the surface of a magneto-optical disk and resulting optical disk
Patent #: 5112662
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Head/gimbal assembly having low stiffness cross band flexure
Patent #: 5115363
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Magneto-optic recording medium with oriented Langmuir-Blodgett protective layer
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Inventor

Assignee

Application

No. 926907 filed on 09/10/1997

US Classes:

369/99, SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM369/44.14, Optical head servo system structure369/44.23, Structure for shaping beam or causing astigmatic condition369/112.24, Plural distinct lenses369/119With movement of optical beam (e.g., galvanometer)

Examiners

Primary: Chan, Eddie P.
Assistant: Chu, Kim-Kwok

Attorney, Agent or Firm

International Class

G11B 007/00

Abstract

A head for a disk drive for reading data from and/or writing data to an optical recording medium, having a slider with a channel surface and an air-bearing surface, an optical clear path through the slider, a solid immersion lens mounted at least partially within the slider, and an objective lens mounted to the slider, such that the distances between the air-bearing surface, the objective, and the solid immersion lens are substantially constant.

Other References

  • Maeda, Fumisada, et al., "High Density Optical Disk System Using a New Two-Element Lens and a Thin Substrate Disk", Research Center, Sony Corporation, pp. 342-344
  • Betzig, E., et al., "Near-field magneto-optics and high density data storage", Appl. Phys. Lett., vol. 61, No. 2, pp. 142-144, Jul. 13, 1992
  • Maeda, F., et al., "High density optical disk system using a new two-element lens and a thin substrate disk", Technical Digest, 1996 International Symposium on Optical Memory and Optical Data Storage, pp. 342-344, 1996
  • Mansfield, S., et al., "High-numerical-aperture lens system for optical storage", Optics Letters, vol. 18, No. 4, pp. 305-307, Feb. 15, 1993
  • Mansfield, S., et al., "Solid immersion microscope", Appl. Phys. Lett., vol. 57, No. 24, pp. 2615-2616, Dec. 10, 1990
  • Yamamoto, K., et al., "A 0.8 Numerical Aperture Two Element Objective Lens for the Optical Disk", Technical Digest, 1996 International Symposium on Optical Memory and Optical Data Storage, pp. 345-347, 1996
  • G.S. Kino, "High Density Storage with a Solid Immersion Lens", Ginzton laboratory, Stanford University
  • Hayashi, S., et al., "Solid Immersion Lens for Optical Storage," Stanford University, G.L. Report No. 5258, Feb. 1995 (9 page document)
  • Ichimura, Isao, et al., "High Density Optical Recording Using a Solid Immersion Lens," Stanford University, G.L. Report No. 5371, Nov. 1995, pp. 1-22 and Figs. 1-17
  • Mamin, H.J., et al., "High density optical recording with a flying solid immersion lens," presented at the Optical Data Storage Conference in San Diego, California in May, 1995, pp. 1-2
  • Terris, B.D., et al., "Near-field optical data storage using a solid immersion lens," Applied Physics Letters, 65 (4), Jul. 25, 1994, pp. 388-39
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