Hokushin Electric Works, Ltd.

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
 
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 178

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,120,930 Rush current reduction circuit and electric applianceOct 19, 06Feb 21, 12[H02M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
4,408,497 Electromagnetic flowmeter for measuring ferromagnetic slurriesDec 22, 81Oct 11, 83[G01F]
4,390,879 Apparatus for converting physical quantitiesJul 18, 80Jun 28, 83[G08C]
4,388,833 Differential pressure gaugeDec 18, 80Jun 21, 83[G01L]
4,387,601 Capacitance type displacement conversion deviceJun 19, 81Jun 14, 83[G01L]
4,373,400 Signal generator for electromagnetic flowmetersDec 15, 80Feb 15, 83[G01F]
4,366,716 Pressure transducerMar 11, 81Jan 04, 83[G01L]
4,357,834 Displacement converterSep 03, 80Nov 09, 82[G01L]
4,357,835 Electromagnetic flowmeter in shielded linesJun 20, 80Nov 09, 82[G01F]
4,290,312 Signal generator for electromagnetic flowmeterJan 22, 80Sep 22, 81[G01F]
4,259,165 Dissolved oxygen probeDec 10, 79Mar 31, 81[G01N]
4,218,915 Electromagnetic flowmeterDec 12, 78Aug 26, 80[G01F]
4,211,971 Ratio meter for capacitive-type displacement converterJun 29, 78Jul 08, 80[G01R, G06G]
4,206,640 Magnetic flowmeterApr 28, 78Jun 10, 80[G01F]
4,193,298 Excitation system for electromagnetic flowmeterAug 21, 78Mar 18, 80[G01F]
4,181,019 Electromagnetic flowmeter with noise compensationSep 12, 78Jan 01, 80[G01F]

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