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Class Information
Number: 369/118
Name: Dynamic information storage or retrieval > Specific detail of information handling portion of system > Radiation beam modification of or by storage medium > With detail, configuration, or adjunct of element having slit or aperture in radiation path
Description: Subject matter having the structure, shape, or cooperating device of an element blocking all but a limited area of the radiant energy beam.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602692 |
Near-field optical probe for reproducing information on a recording medium using near-field light |
Oct. 13, 2009 |
| 7544922 |
Near-field light-emitting element and optical head |
Jun. 9, 2009 |
| 7471612 |
Recording medium having substrate with thickness dependent on numerical aperture of object lens, method of forming the optical medium and optical recording/reproducing apparatus |
Dec. 30, 2008 |
| 7406007 |
Optical disc apparatus and spherical aberration correction controlling apparatus |
Jul. 29, 2008 |
| RE40329 |
Single objective lens for use with CD or DVD optical disks |
May. 20, 2008 |
| 7372784 |
Optical head apparatus |
May. 13, 2008 |
| 7342869 |
Optical-recording medium playback apparatus and optical-recording medium, including flying optical head features |
Mar. 11, 2008 |
| 7301888 |
Recording apparatus |
Nov. 27, 2007 |
| 7274649 |
Holographic ROM system |
Sep. 25, 2007 |
| 7272099 |
Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism |
Sep. 18, 2007 |
| 7260047 |
Optical pickup that uses light sources with different wavelengths for each of multiple recording mediums |
Aug. 21, 2007 |
| 7193953 |
Holographic recording and reconstructing apparatus and mask for use therein |
Mar. 20, 2007 |
| 7180844 |
Holographic disc recording system |
Feb. 20, 2007 |
| 7167433 |
Scanning apparatus for fluorescent multi-layer storage |
Jan. 23, 2007 |
| 7131128 |
Optical actuator |
Oct. 31, 2006 |
| 7088659 |
Optical disk apparatus and tilt detection method |
Aug. 8, 2006 |
| 7085220 |
Optical head and optical device for enhancing the intensity of a transmitted light |
Aug. 1, 2006 |
| 7054256 |
High capacity digital data storage by transmission of radiant energy through arrays of small diameter holes |
May. 30, 2006 |
| 7046613 |
Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism |
May. 16, 2006 |
| 7046612 |
Drive current supply circuit with current mirror |
May. 16, 2006 |
| 7038978 |
Optical information recording and reproducing apparatus for recording information bits into an optical disk in a three dimensional arrangement |
May. 2, 2006 |
| 7035194 |
Optical pickup apparatus for reading and recording information on recording media |
Apr. 25, 2006 |
| 6993826 |
Method of manufacturing a probe array |
Feb. 7, 2006 |
| 6961291 |
System for enhanced astigmatic focus signal detection |
Nov. 1, 2005 |
| 6940798 |
Optical-disk reproducing apparatus, optical pickup apparatus and optical-disk recording and reproducing apparatus |
Sep. 6, 2005 |
| 6934240 |
Optical element, optical head and signal reproducing method |
Aug. 23, 2005 |
| 6920091 |
Optical reproduction apparatus and optical recording and reproduction apparatus |
Jul. 19, 2005 |
| 6914873 |
Recording apparatus |
Jul. 5, 2005 |
| 6901036 |
Method and apparatus for reproducing an optical signal |
May. 31, 2005 |
| 6888787 |
Optical information processor and optical element |
May. 3, 2005 |
| 6885616 |
Optical pickup apparatus and information recording and/or reproducing apparatus |
Apr. 26, 2005 |
| 6876620 |
Optical storage device |
Apr. 5, 2005 |
| 6754145 |
Tilt compensation device for disk drive |
Jun. 22, 2004 |
| 6747938 |
Recording medium having substrate with thickness dependent on numerical aperture of object lens, method of forming the optical medium and optical recording/reproducing apparatus |
Jun. 8, 2004 |
| 6738338 |
Near-field optical head, method of fabricating same, and optical drive using same |
May. 18, 2004 |
| 6728192 |
Tracking error signal detection system for optical recording medium |
Apr. 27, 2004 |
| 6721258 |
Optical device for super-resolution |
Apr. 13, 2004 |
| 6707779 |
Optical scanning device with a selective optical diaphragm |
Mar. 16, 2004 |
| 6700856 |
Optical head, magneto-optical head, disk apparatus and manufacturing method of optical head |
Mar. 2, 2004 |
| 6687196 |
Method and apparatus for implementing high density recording on a recording medium and a method of manufacturing same |
Feb. 3, 2004 |
| 6657931 |
Optical disc drive for performing read/write operations on optical disks |
Dec. 2, 2003 |
| 6643247 |
Method for recording information in optical information medium and reproducing information therefrom |
Nov. 4, 2003 |
| 6631227 |
Information recording and reproducing apparatus |
Oct. 7, 2003 |
| 6618346 |
Optical pickup device having aperture restriction arrangement |
Sep. 9, 2003 |
| 6614742 |
Optical head, magneto-optical head, disk apparatus and manufacturing method of optical head |
Sep. 2, 2003 |
| 6577584 |
Method and apparatus for detecting light from a multilayered object |
Jun. 10, 2003 |
| 6574183 |
Device for reading from or writing to optical recording media |
Jun. 3, 2003 |
| 6563779 |
Tracking error signal generation using confocally filtered detection |
May. 13, 2003 |
| 6563781 |
Optical information storage device and optical head |
May. 13, 2003 |
| 6560189 |
Optical information storage apparatus |
May. 6, 2003 |
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