Inventor
KATOOKA MASAO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “KATOOKA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANSHA ELECTRIC MFG CO LTD
21 patentsUS5831240ANov 3, 1998
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD76 citations96
US5424915AJun 13, 1995
Cooling structure for power supply device
SANSHA ELECTRIC MFG CO LTD164 citations96
US6051806AApr 18, 2000
Power supply apparatus for welders and method of manufacturing same
SANSHA ELECTRIC MFG CO LTD68 citations95
US6665183B1Dec 16, 2003
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD60 citations94
US6825441B2Nov 30, 2004
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD28 citations92
US6774757B2Aug 10, 2004
Coil
SANSHA ELECTRIC MFG CO LTD33 citations92
US6636140B2Oct 21, 2003
High-frequency large current handling transformer
SANSHA ELECTRIC MFG CO LTD36 citations92
US5943220AAug 24, 1999
Waterproofed power supply apparatus
SANSHA ELECTRIC MFG CO LTD20 citations92
US6433664B1Aug 13, 2002
Coil
SANSHA ELECTRIC MFG CO LTD16 citations84
USD474738SMay 20, 2003
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD14 citations83
US6057524AMay 2, 2000
Plasma arc utilizing apparatus
SANSHA ELECTRIC MFG CO LTD16 citations83
US5726416AMar 10, 1998
Air plasma arc cutter
SANSHA ELECTRIC MFG CO LTD17 citations82
US7315450B2Jan 1, 2008
Heat-generating component cooling structure
SANSHA ELECTRIC MFG CO LTD16 citations81
US6483687B2Nov 19, 2002
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD11 citations74
US5757638AMay 26, 1998
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD15 citations74
US7579554B2Aug 25, 2009
Heat sink arrangement for electrical apparatus
SANSHA ELECTRIC MFG CO LTD3 citations63
US7339807B2Mar 4, 2008
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD6 citations63
US6797922B2Sep 28, 2004
Power supply apparatus for welder
SANSHA ELECTRIC MFG CO LTD4 citations63
US4214356AJul 29, 1980
Artificial porcelain tooth manufacturing
SANSHA ELECTRIC MFG CO LTD3 citations60
US7256994B2Aug 14, 2007
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD1 citations50
US7300293B2Nov 27, 2007
Attachment for preventing cover from falling off
SANSHA ELECTRIC MFG CO LTD0 citations40