HITACHI POWER SEMICONDUCTOR DEVICE, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 37325
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 1671
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 795
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 6101
 
  
 
H03K PULSE TECHNIQUE 6125
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 4152
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 374
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 2149
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 1239
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0317,075 DIODE AND POWER CONVERTOR USING THE SAMEApr 24, 17Nov 02, 17[H01L, H02M, H02P]
2016/0104,614 Semiconductor Device and a Method of Manufacturing SameOct 08, 15Apr 14, 16[H01L]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9831145 Semiconductor device, and alternator and power converter using the semiconductor deviceAug 19, 15Nov 28, 17[H02K, H01L]
9755014 Semiconductor device with substantially equal impurity concentration JTE regions in a vicinity of a junction depthSep 28, 16Sep 05, 17[H01L]
9531368 Semiconductor switch circuit, signal processing apparatus, and ultrasound diagnostic apparatusAug 16, 14Dec 27, 16[H03K, A61B]
9478605 Semiconductor device with similar impurity concentration JTE regionsDec 10, 13Oct 25, 16[H01L]
9190992 Semiconductor device and ultrasonic diagnostic apparatus using the sameOct 27, 11Nov 17, 15[H03K]
9082814 Semiconductor devices and power conversion systemsJan 11, 12Jul 14, 15[H01L]
9076774 Semiconductor device and a method of manufacturing sameMay 15, 13Jul 07, 15[H01L]
9013877 Power semiconductor deviceNov 29, 12Apr 21, 15[H01L, H05K]
9000601 Power semiconductor moduleJun 26, 12Apr 07, 15[H01L]
8890169 Semiconductor deviceNov 08, 10Nov 18, 14[H01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0254,761 SEMICONDUCTOR DEVICE, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, AND POWER CONVERSION DEVICEAbandonedFeb 24, 16Sep 01, 16[H02M, H01L]
2016/0020,309 SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE USING SAMEAbandonedDec 03, 13Jan 21, 16[H01L, H02M]
2015/0303,268 DIODE AND POWER CONVERSION DEVICEAbandonedDec 03, 13Oct 22, 15[H01L, H02M]
2015/0221,626 Power Semiconductor ModuleAbandonedJan 29, 15Aug 06, 15[H01L]
2014/0070,379 Diode and Power Conversion SystemAbandonedAug 22, 13Mar 13, 14[H01L]
8653588 Semiconductor device and electric power conversion system using the sameExpiredJul 19, 12Feb 18, 14[H01L]
8531148 Control apparatus and control method for AC electric motorExpiredJun 29, 11Sep 10, 13[H02P]
7560896 Vector control apparatus for permanent magnet motorExpiredFeb 27, 07Jul 14, 09[H02P]

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