Assignee
SANSHA ELECTRIC MFG CO LTD
JP·92 granted patents·12 pending applications·1,892 citations·filing 1978–2025
Top patents by PatentIndex Score
104 records- 0194US5424915ACooling structure for power supply deviceSANSHA ELECTRIC MFG CO LTD·Filed 1994·Granted Jun 13, 1995·164 cites·6 claims
- 0294US5272313AArc welderSANSHA ELECTRIC MFG CO LTD·Filed 1992·Granted Dec 21, 1993·93 cites·4 claims
- 0393US6269015B1Power supply apparatus for ARC-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 2000·Granted Jul 31, 2001·67 cites·2 claims
- 0493US5864110APower supply apparatus for plasma arc utilizing equipmentSANSHA ELECTRIC MFG CO LTD·Filed 1997·Granted Jan 26, 1999·98 cites·16 claims
- 0591US6665183B1Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2003·Granted Dec 16, 2003·60 cites·9 claims
- 0690US5831240APower supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1995·Granted Nov 3, 1998·76 cites·13 claims
- 0789US6774757B2CoilSANSHA ELECTRIC MFG CO LTD·Filed 2003·Granted Aug 10, 2004·33 cites·2 claims
- 0889US6636140B2High-frequency large current handling transformerSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Oct 21, 2003·36 cites·8 claims
- 0987US6069811ADC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted May 30, 2000·69 cites·8 claims
- 1086US6054674ADC power supply apparatus for arc-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 1999·Granted Apr 25, 2000·61 cites·6 claims
- 1186US6051806APower supply apparatus for welders and method of manufacturing sameSANSHA ELECTRIC MFG CO LTD·Filed 1999·Granted Apr 18, 2000·68 cites·10 claims
- 1286US5343017AArc 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
- 1385US7457139B2Power supply apparatus for arc-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 2006·Granted Nov 25, 2008·9 cites·3 claims
- 1484US7315450B2Heat-generating component cooling structureSANSHA ELECTRIC MFG CO LTD·Filed 2005·Granted Jan 1, 2008·16 cites·6 claims
- 1584US6181576B1Power supply apparatus for arc-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 2000·Granted Jan 30, 2001·62 cites·10 claims
- 1683US7528345B2Power supply apparatus for welderSANSHA ELECTRIC MFG CO LTD·Filed 2007·Granted May 5, 2009·7 cites·4 claims
- 1783US6825441B2Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2002·Granted Nov 30, 2004·28 cites·7 claims
- 1883US6505675B2Molten metal pouring time determining apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Jan 14, 2003·12 cites·9 claims
- 1983US5771163AAC-DC converter apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1996·Granted Jun 23, 1998·74 cites·4 claims
- 2082US9863428B2Fan control unit and power conditionerSANSHA ELECTRIC MFG CO LTD·Filed 2012·Granted Jan 9, 2018·8 cites·7 claims
- 2182US5930122AInverter and DC power supply apparatus with inverter used thereinSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Jul 27, 1999·71 cites·6 claims
- 2281US10361639B1Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2018·Granted Jul 23, 2019·6 cites·5 claims
- 2381US5926381ADC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Jul 20, 1999·67 cites·5 claims
- 2479US12206239B2Power supply system and power supply unitSANSHA ELECTRIC MFG CO LTD·Filed 2021·Granted Jan 21, 2025·2 cites·5 claims
- 2579US7786682B2Discharge lamp lighting control method, computer program, discharge lamp lighting control apparatus, and power supply circuitSANSHA ELECTRIC MFG CO LTD·Filed 2008·Granted Aug 31, 2010·7 cites·11 claims
- 2677US7388171B2Power supply apparatus for welderSANSHA ELECTRIC MFG CO LTD·Filed 2005·Granted Jun 17, 2008·5 cites·2 claims
- 2777US6433664B1CoilSANSHA ELECTRIC MFG CO LTD·Filed 2000·Granted Aug 13, 2002·16 cites·2 claims
- 2877US2025373024A1Power conversion deviceSANSHA ELECTRIC MFG CO LTD·Filed 2025·Application pending·0 cites
- 2976US5917711ADC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Jun 29, 1999·52 cites·4 claims
- 3075US6515882B2Power supply apparatus for lampSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Feb 4, 2003·37 cites·7 claims
- 3174US6278080B1Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 1999·Granted Aug 21, 2001·34 cites·3 claims
- 3272US10065261B2Power supply apparatus for welding machineSANSHA ELECTRIC MFG CO LTD·Filed 2015·Granted Sep 4, 2018·1 cites·7 claims
- 3372US7586766B2Plasma arc power supply and control method for sameSANSHA ELECTRIC MFG CO LTD·Filed 2007·Granted Sep 8, 2009·4 cites·19 claims
- 3472US6091049APower supply apparatus for use with arc utilizing deviceSANSHA ELECTRIC MFG CO LTD·Filed 1999·Granted Jul 18, 2000·32 cites·6 claims
- 3571US11935820B2Semiconductor deviceSANSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Mar 19, 2024·1 cites·5 claims
- 3671US4354831ACrucible for precision casting deviceSANSHA ELECTRIC MFG CO LTD·Filed 1981·Granted Oct 19, 1982·14 cites·5 claims
- 3770US6666960B2Electroplating current supply systemSANSHA ELECTRIC MFG CO LTD·Filed 2002·Granted Dec 23, 2003·7 cites·9 claims
- 3869US7808186B2Power supply apparatus for arc-generating loadSANSHA ELECTRIC MFG CO LTD·Filed 2008·Granted Oct 5, 2010·4 cites·4 claims
- 3969US6507004B2DC power supply apparatus for arc-utilizing apparatusesSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Jan 14, 2003·13 cites·6 claims
- 4068US7579554B2Heat sink arrangement for electrical apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2006·Granted Aug 25, 2009·3 cites·1 claims
- 4167USD949808SSemiconductor deviceSANSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Apr 26, 2022·4 cites·1 claims
- 4266US6188585B1DC power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2000·Granted Feb 13, 2001·22 cites·4 claims
- 4365USD474738SPower supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2002·Granted May 20, 2003·14 cites·1 claims
- 4465US6152699ACooling apparatus for electrical equipmentSANSHA ELECTRIC MFG CO LTD·Filed 1997·Granted Nov 28, 2000·34 cites·2 claims
- 4565US2025244373A1Reference three-phase voltage signal generation device and reference three-phase voltage signal-using apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2025·Application pending·0 cites
- 4664US6483687B2Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2001·Granted Nov 19, 2002·11 cites·4 claims
- 4764US2025080005A1Rectifying-element-module sealing unitSANSHA ELECTRIC MFG CO LTD·Filed 2024·Application pending·0 cites
- 4863US9013115B2Discharge lamp igniting apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2013·Granted Apr 21, 2015·1 cites·4 claims
- 4963US7994635B2Power semiconductor moduleSANSHA ELECTRIC MFG CO LTD·Filed 2007·Granted Aug 9, 2011·3 cites·2 claims
- 5063US7339807B2Power supply apparatusSANSHA ELECTRIC MFG CO LTD·Filed 2007·Granted Mar 4, 2008·6 cites·5 claims
Showing the top 50 of 104 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when SANSHA ELECTRIC MFG CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →