Inventor · disambiguated record
Toshikazu Fujiyoshi
Also filed as: FUJIYOSHI TOSHIKAZU
24 granted patents·651 citations·filing 1992–2009
96Inventor score
Top patents by PatentIndex Score
24 records- 0194US5272313AArc welderSANSHA ELECTRIC MFG CO LTD·Filed 1992·Granted Dec 21, 1993·93 cites·4 claims
- 0289US6774757B2CoilSANSHA ELECTRIC MFG CO LTD·Filed 2003·Granted Aug 10, 2004·33 cites·2 claims
- 0389US6636140B2High-frequency large current handling transformerSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Oct 21, 2003·36 cites·8 claims
- 0487US6069811ADC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted May 30, 2000·69 cites·8 claims
- 0586US6054674ADC power supply apparatus for arc-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 1999·Granted Apr 25, 2000·61 cites·6 claims
- 0686US5343017AArc welder with timed control of arcing recovery and means for reducing weight, size, and power loss in the welderSANSHA ELECTRIC MFG CO LTD·Filed 1993·Granted Aug 30, 1994·54 cites·3 claims
- 0782US5930122AInverter and DC power supply apparatus with inverter used thereinSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Jul 27, 1999·71 cites·6 claims
- 0881US5926381ADC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Jul 20, 1999·67 cites·5 claims
- 0977US6433664B1CoilSANSHA ELECTRIC MFG CO LTD·Filed 2000·Granted Aug 13, 2002·16 cites·2 claims
- 1066US8400799B2Inverter circuit with controller for controlling switching elements based on a magnitude of output powerFUJIYOSHI TOSHIKAZU·Filed 2009·Granted Mar 19, 2013·8 cites·4 claims
- 1156US6023416ADC power supply apparatus including boosting/lowering converter unit and controlSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Feb 8, 2000·24 cites·5 claims
- 1255US8094470B2Current balanced push-pull inverter circuit with snubber and discharge circuitryFUJIYOSHI TOSHIKAZU·Filed 2009·Granted Jan 10, 2012·4 cites·2 claims
- 1355US5310992AArc welderSANSHA ELECTRIC MFG CO LTD·Filed 1993·Granted May 10, 1994·22 cites·2 claims
- 1454US7075032B2Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2003·Granted Jul 11, 2006·5 cites·9 claims
- 1554US5630952APlasma-arc power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1995·Granted May 20, 1997·24 cites·3 claims
- 1653US5457300AConsumable electrode DC arc welderSANSHA ELECTRIC MFG CO LTD·Filed 1994·Granted Oct 10, 1995·14 cites·7 claims
- 1752US8873259B2DC-DC converter including regeneration snubber circuitFUJIYOSHI TOSHIKAZU·Filed 2009·Granted Oct 28, 2014·3 cites·7 claims
- 1852US8094469B2Current balanced push-pull inverter circuitFUJIYOSHI TOSHIKAZU·Filed 2008·Granted Jan 10, 2012·3 cites·5 claims
- 1952US5760372AArc welderSANSHA ELECTRIC MFG CO LTD·Filed 1996·Granted Jun 2, 1998·16 cites·4 claims
- 2051US6914788B2Power supply apparatusSANSHA ELECTRIC MFG COMPANY LI·Filed 2004·Granted Jul 5, 2005·10 cites·7 claims
- 2145US5643475APower supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1995·Granted Jul 1, 1997·11 cites·4 claims
- 2240US8363432B2DC-DC converter circuitSANSHA ELECTRIC MFG CO LTD·Filed 2009·Granted Jan 29, 2013·0 cites·4 claims
- 2339US5306894AConsumable electrode type D.C. arc welderSANSHA ELECTRIC MFG CO LTD·Filed 1993·Granted Apr 26, 1994·7 cites·3 claims
- 2438US8107265B2Current balanced push-pull inverter circuit with regeneration snubber circuit and voltage boost sectionFUJIYOSHI TOSHIKAZU·Filed 2009·Granted Jan 31, 2012·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →