VOXPATH RS LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 16122
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 10195
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 276
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1197

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7441258 Objective lens drive device and optical head deviceMar 07, 05Oct 21, 08[G11B]
7414926 Optical head device that prevents the displacement of the optical axis caused by expansion or contraction due to temperature changeDec 19, 03Aug 19, 08[G11B]
7372784 Optical head apparatusMay 20, 04May 13, 08[G11B]
7361250 Prism, method of producing a prism, and optical head apparatus using a prismNov 12, 04Apr 22, 08[B32B]
7359308 Fixing structure for optical element and optical head deviceJul 12, 04Apr 15, 08[G11B]
7336567 Optical head device having an objective lens holder supported by composite wires and single wiresApr 23, 04Feb 26, 08[G11B]
7272100 Optical head apparatusMay 27, 04Sep 18, 07[G11B]
7175087 Method of analyzing astigmatic difference and method of correcting the spot diameters for an optical device and spot analysis systemDec 15, 04Feb 13, 07[G06K]
7164521 Aberration compensating device and optical head deviceJun 30, 05Jan 16, 07[G02F]
7126764 Objective lens and optical head device provided with the sameJul 01, 05Oct 24, 06[G02B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7522358 Optical head device and manufacturing method thereforExpiredAug 18, 04Apr 21, 09[G02B, G11B]
7283433 Manufacturing method for optical head device and optical head deviceExpiredAug 25, 04Oct 16, 07[G11B]
7225453 Optical head device for absorbing vibrations in an objective lensExpiredSep 30, 03May 29, 07[G11B]
6961298 Optical head device having a plurality of optical elements with various transmission efficienciesExpiredFeb 04, 02Nov 01, 05[G11B]
6873591 Two-wavelength optical pickup device with step-like diffraction elementExpiredFeb 04, 02Mar 29, 05[G11B]
6798819 Optical pickup apparatus and method of manufacturing the sameExpiredFeb 24, 00Sep 28, 04[H01S]
6633530 Optical pickup apparatus with light source unit including first light source and common light receiving sectionExpiredAug 30, 00Oct 14, 03[G11B]
6552317 Optical pickup deviceExpiredJun 13, 00Apr 22, 03[G02B]
6538977 Mechanism for adjusting radiating direction of light emitted from laser light source in optical pickup deviceExpiredSep 07, 00Mar 25, 03[G11B]

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