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Browse by Category: Main > Information Technology
Class Information
Number: 369/121
Name: Dynamic information storage or retrieval > Specific detail of information handling portion of system > Radiation beam modification of or by storage medium > With particular light source (e.g., laser, crt with phosphor)
Description: Subject matter including either structural detail of a light source, or a light source characterized by a function or relationship additional to conventional light emission.










Sub-classes under this class:

Class Number Class Name Patents
369/123 Glow lamps 5
369/122 Solid state 229


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
6967919 Method and apparatus for optical head and optical information reproducing Nov. 22, 2005
6967907 Optical pickup device and optical disk device having a diffraction grating Nov. 22, 2005
6965552 Mounting method for optical device and optical head equipment Nov. 15, 2005
6965553 Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof Nov. 15, 2005
6963530 Near-field optical head system with integrated slider and laser Nov. 8, 2005
6958969 Optical semiconductor component package and optical pickup device Oct. 25, 2005
6956808 Optical device and optical sensor Oct. 18, 2005
6950384 Optical pickup appratus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method Sep. 27, 2005
6930976 Optical recording medium and optical pickup device Aug. 16, 2005
6928042 Data storage device including nanotube electron sources Aug. 9, 2005
6914869 Optical pickup for CD/DVD compatible player Jul. 5, 2005
6912192 Semiconductor laser unit and optical head device Jun. 28, 2005
6906991 Optical head, optical recording and/or reproducing apparatus and integrated optical module Jun. 14, 2005
6906992 Optical pickup device and optical recording and reproducing apparatus including the optical pickup device Jun. 14, 2005
6891176 Planar electron emitter with extended lifetime and system using same May. 10, 2005
6873593 Three-Dimensional optical memory with fluorescent photosensitive vitreous material read and written to by laser Mar. 29, 2005
6845078 Optical pickup apparatus Jan. 18, 2005
6834036 Optical head for a plurality of types of information recording media Dec. 21, 2004
6819646 Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus Nov. 16, 2004
6816450 Optical pickup apparatus that emits two light beams having two different wavelengths Nov. 9, 2004
6808778 Optical recording medium Oct. 26, 2004
6798730 Superimposing circuit module for reducing spurious electromagnetic wave emissions and small variations in circuit parameters Sep. 28, 2004
6785215 Astigmatic objective lens for optical head Aug. 31, 2004
6781941 Field serviceable laser pen for optical disk drives Aug. 24, 2004
6775051 Systems and methods for scanning a beam of light across a specimen Aug. 10, 2004
6771586 Semiconductor laser element, method for manufacturing the same, and optical pickup using the same Aug. 3, 2004
6765857 Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure Jul. 20, 2004
6760297 Substrate unit for optical head and method for manufacturing the same Jul. 6, 2004
6747939 Semiconductor laser device and optical pickup device using the same Jun. 8, 2004
6747940 Optical writing head comprising self-scanning light-emitting element array Jun. 8, 2004
6728154 Three-dimensional optical memory medium and process for producing same Apr. 27, 2004
6717893 Laser thermal management system Apr. 6, 2004
6704096 Exposure apparatus and exposure method Mar. 9, 2004
6693871 Integrated unit, optical pickup, and optical recording medium drive device Feb. 17, 2004
6687208 Laser drive integrated circuit and optical disk apparatus using the same Feb. 3, 2004
6674702 Laser drive integrated circuit and optical disk apparatus using the same Jan. 6, 2004
6654320 Optical pickup apparatus Nov. 25, 2003
6646975 Semiconductor laser array and its manufacturing method, optical integrated unit and optical pickup Nov. 11, 2003
6614744 Method and apparatus for reading out and writing to an optical disc Sep. 2, 2003
6614825 Monolithic VCSEL-based optical pickup and servo control device Sep. 2, 2003
6614743 Semiconductor laser device Sep. 2, 2003
6577564 Optical pickup device Jun. 10, 2003
6574257 Near-field laser and detector apparatus and method Jun. 3, 2003
6560188 Compound optical unit mounted on optical device May. 6, 2003
6555903 Package structure of hybrid device in optical signal transmitter Apr. 29, 2003
6538977 Mechanism for adjusting radiating direction of light emitted from laser light source in optical pickup device Mar. 25, 2003
6522619 Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same Feb. 18, 2003
6504812 Optical pickup device with a plurality of laser couplers Jan. 7, 2003
6483796 Recording medium, information reproducing apparatus, information recording apparatus, and information recording and reproducing apparatus Nov. 19, 2002
6480456 Optical pickup apparatus for reading different types of recording media at different reading wavelengths Nov. 12, 2002

1 2 3 4 5 6 7 8 9 10










 
 
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