HITACHI DISPLAY DEVICES, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 2131
 
  
 
A47F SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS, OR THE LIKE; PAYING COUNTERS131
 
  
 
G09F DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS 138
 
  
 
G11C STATIC STORES 1150

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8400584 Liquid crystal display device having a light guide plate being formed in a trapezoidal shape in cross sectionFeb 13, 09Mar 19, 13[F21V, G09F, G02F, A47F]
7538845 Liquid crystal display device having particular electrodes in transmission region and in reflection regionOct 21, 05May 26, 09[G02F]
7208983 Image-sensor signal processing circuitMay 28, 04Apr 24, 07[G11C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0218,664 FLUORESCENT LAMP AND IMAGING DEVICE USIGN THE SAMEAbandonedFeb 20, 08Sep 11, 08[H01J, G02F]
2007/0229,726 Liquid crystal display deviceAbandonedMar 30, 07Oct 04, 07[G02F]
2007/0229,729 Liquid crystal display deviceAbandonedOct 26, 06Oct 04, 07[G02F]
2007/0159,540 Image-sensor signal-processing circuitAbandonedMar 14, 07Jul 12, 07[H04N]
2007/0133,222 Liquid crystal display device and backlight deviceAbandonedDec 12, 06Jun 14, 07[F21V]
2006/0028,154 Liquid crystal display deviceAbandonedJul 27, 05Feb 09, 06[H05B]
2005/0264,508 Liquid crystal display device and driving method thereofAbandonedJun 01, 05Dec 01, 05[G09G]
2005/0253,980 Liquid crystal display deviceAbandonedApr 05, 05Nov 17, 05[G02F]
2005/0206,291 Display deviceAbandonedMar 16, 05Sep 22, 05[H01J, H01K]
2005/0195,341 Display deviceAbandonedMar 02, 05Sep 08, 05[G02F]
6924544 Semiconductor device and manufacturing method of the sameExpiredJan 29, 04Aug 02, 05[H01L]
2005/0062,899 Display deviceAbandonedSep 16, 04Mar 24, 05[G02F]
2004/0239,832 Liquid crystal display deviceAbandonedMar 18, 04Dec 02, 04[G02F]

Top Inventors for This Owner

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