HITACHI, INC.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
H01S DEVICES USING STIMULATED EMISSION191

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6851311 Thermal-type flow meter with bypass passageMar 27, 02Feb 08, 05[G01F]
6664494 Current collector and gas circuit breakerSep 25, 02Dec 16, 03[H01H]
6639925 Optical information processing equipment and semiconductor light emitting device suitable thereforSep 28, 01Oct 28, 03[H01S]
6512257 System with meshed power and signal buses on cell arrayApr 11, 02Jan 28, 03[H01L]
5764519 Method and device for computing material requirementsMar 07, 96Jun 09, 98[G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0115,902 DISPLAY APPARATUS WITH COUNTERPROGRAM CHECKING FUNCTIONAbandonedOct 10, 08May 07, 09[H04N]
2003/0233,440 Network system including host server and method of setting up host serverAbandonedJan 21, 03Dec 18, 03[G06F]
2003/0204,376 Interactive electronic deviceAbandonedFeb 03, 03Oct 30, 03[G06F]
2003/0163,701 Method and apparatus for public key cryptosystemAbandonedFeb 26, 03Aug 28, 03[H04L]
2003/0115,114 Method and system for transaction of goodsAbandonedDec 09, 02Jun 19, 03[G06F]
2003/0101,096 Electronic account settlement system and methodAbandonedNov 20, 02May 29, 03[G06F]
2003/0093,429 Data warehouse systemAbandonedOct 21, 02May 15, 03[G06F]
2003/0061,244 System and method for database query optimizationAbandonedSep 05, 02Mar 27, 03[G06F]
6423593 Semiconductor integrated circuit device and process for manufacturing the sameExpiredAug 31, 01Jul 23, 02[H01L]
5602781 Memory device having a plurality of sets of data buffersExpiredMar 16, 95Feb 11, 97[G11C]
5548316 Stereoscopic image processing systemExpiredMar 01, 93Aug 20, 96[B41J]
5272581 Disk-type recording medium and storage apparatusExpiredSep 13, 91Dec 21, 93[G11B]
5090220 Automatic washing machine having tub posture tilting mechanismExpiredDec 06, 90Feb 25, 92[D06F]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.