KYOSHIN ELECTRIC WORKS, LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8120930 Rush current reduction circuit and electric applianceExpiredOct 19, 06Feb 21, 12[H02M]
4408497 Electromagnetic flowmeter for measuring ferromagnetic slurriesExpiredDec 22, 81Oct 11, 83[G01F]
4390879 Apparatus for converting physical quantitiesExpiredJul 18, 80Jun 28, 83[G08C]
4388833 Differential pressure gaugeExpiredDec 18, 80Jun 21, 83[G01L]
4387601 Capacitance type displacement conversion deviceExpiredJun 19, 81Jun 14, 83[G01L]
4373400 Signal generator for electromagnetic flowmetersExpiredDec 15, 80Feb 15, 83[G01F]
4366716 Pressure transducerExpiredMar 11, 81Jan 04, 83[G01L]
4357834 Displacement converterExpiredSep 03, 80Nov 09, 82[G01L]
4357835 Electromagnetic flowmeter in shielded linesExpiredJun 20, 80Nov 09, 82[G01F]
4290312 Signal generator for electromagnetic flowmeterExpiredJan 22, 80Sep 22, 81[G01F]
4259165 Dissolved oxygen probeExpiredDec 10, 79Mar 31, 81[G01N]
4218915 Electromagnetic flowmeterExpiredDec 12, 78Aug 26, 80[G01F]
4211971 Ratio meter for capacitive-type displacement converterExpiredJun 29, 78Jul 08, 80[G01R, G06G]
4206640 Magnetic flowmeterExpiredApr 28, 78Jun 10, 80[G01F]
4193298 Excitation system for electromagnetic flowmeterExpiredAug 21, 78Mar 18, 80[G01F]
4181019 Electromagnetic flowmeter with noise compensationExpiredSep 12, 78Jan 01, 80[G01F]

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