Recording head and information recording apparatus

Details Recording head and information recording apparatus Recording head and information recording apparatus

2006-11-07

2006-11-07

Young, Wayne (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Thermomagnetic recording or transducers

C360S013000

Reexamination Certificate

active

07133230

ABSTRACT:
To generate a satisfactory recording magnetic domain on a recording medium and to improve the durability of a recording head, an information recording apparatus for generating an optical near field and thermo-magnetically recording information on the recording medium is provided with a light source, a magnetic pole for applying a magnetic field to the recording medium and a diffuser that generates an optical near field in the vicinity of the recording medium when light from the light source is radiated. The diffuser is formed with it in contact with the magnetic pole so that the face which light from the light source irradiates is substantially perpendicular to the recording medium. Thereby, recording density in the information recording apparatus can be increased, simultaneously the reliability can be also enhanced and as a result, the cost can be reduced.

REFERENCES:
patent: 6498776 (2002-12-01), Nakano et al.
patent: 6584062 (2003-06-01), Naya
patent: 6636460 (2003-10-01), Akiyama et al.
patent: 6687195 (2004-02-01), Miyanishi et al.
patent: 6741524 (2004-05-01), Ichihara et al.
patent: 6795380 (2004-09-01), Akiyama et al.
patent: 6952380 (2005-10-01), Isshiki et al.
patent: 6963530 (2005-11-01), Thornton et al.
patent: 6982844 (2006-01-01), Rettner et al.
patent: 7042810 (2006-05-01), Akiyama et al.
patent: 2004/0085862 (2004-05-01), Matsumoto et al.
patent: 2005/0078565 (2005-04-01), Peng et al.
patent: 10-162444 (1998-06-01), None
patent: 2001-255254 (2001-09-01), None
patent: 2002-48697 (2002-02-01), None
NIshida et al., “XY-stage Driving Electron-Beam Mastering with Nanometer-Accuracy Positioning for High-Density Optical Disk”, Jul. 2002, International optical Memory and Optical Dtat Storage Topical Meeting, pp. 28-30.
Ito et al., “Advanced Recording Method Using a Near-Field Optics and the GMR Head”, May 2000, Conference Digest Optical Dtat Storage, pp. 30-32.
Sukeda et al., “Thermally assisted Magnetic Recording on Flux-Detectable RE-TM Media”, Jul. 2001, IEEE Transaction on Magnetics, vol. 37, Issue 4, pp. 1234-1238.

Affiliated with

Also associated with

Rating

Recording head and information recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording head and information recording apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording head and information recording apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3625060