Inventor
FUJIYOSHI TOSHIKAZU
JP24 patents
⚠️ This page may combine multiple inventors who share the name “FUJIYOSHI TOSHIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANSHA ELECTRIC MFG CO LTD
18 patentsUS6069811AMay 30, 2000
DC power supply apparatus
SANSHA ELECTRIC MFG CO LTD69 citations96
US6054674AApr 25, 2000
DC power supply apparatus for arc-utilizing apparatuses
SANSHA ELECTRIC MFG CO LTD61 citations96
US5930122AJul 27, 1999
Inverter and DC power supply apparatus with inverter used therein
SANSHA ELECTRIC MFG CO LTD71 citations96
US5926381AJul 20, 1999
DC power supply apparatus
SANSHA ELECTRIC MFG CO LTD67 citations96
US5272313ADec 21, 1993
Arc welder
SANSHA ELECTRIC MFG CO LTD93 citations95
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
US6023416AFeb 8, 2000
DC power supply apparatus including boosting/lowering converter unit and control
SANSHA ELECTRIC MFG CO LTD24 citations92
US5630952AMay 20, 1997
Plasma-arc power supply apparatus
SANSHA ELECTRIC MFG CO LTD24 citations92
US5343017AAug 30, 1994
Arc welder with timed control of arcing recovery and means for reducing weight, size, and power loss in the welder
SANSHA ELECTRIC MFG CO LTD54 citations92
US5310992AMay 10, 1994
Arc welder
SANSHA ELECTRIC MFG CO LTD22 citations92
US6433664B1Aug 13, 2002
Coil
SANSHA ELECTRIC MFG CO LTD16 citations84
US5643475AJul 1, 1997
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD11 citations73
US5457300AOct 10, 1995
Consumable electrode DC arc welder
SANSHA ELECTRIC MFG CO LTD14 citations73
US5306894AApr 26, 1994
Consumable electrode type D.C. arc welder
SANSHA ELECTRIC MFG CO LTD7 citations73
US5760372AJun 2, 1998
Arc welder
SANSHA ELECTRIC MFG CO LTD16 citations71
US7075032B2Jul 11, 2006
Power supply apparatus
SANSHA ELECTRIC MFG CO LTD5 citations63
US8363432B2Jan 29, 2013
DC-DC converter circuit
SANSHA ELECTRIC MFG CO LTD0 citations41
FUJIYOSHI TOSHIKAZU
5 patentsUS8400799B2Mar 19, 2013
Inverter circuit with controller for controlling switching elements based on a magnitude of output power
FUJIYOSHI TOSHIKAZU8 citations82
US8873259B2Oct 28, 2014
DC-DC converter including regeneration snubber circuit
FUJIYOSHI TOSHIKAZU3 citations61
US8094469B2Jan 10, 2012
Current balanced push-pull inverter circuit
FUJIYOSHI TOSHIKAZU3 citations61
US8094470B2Jan 10, 2012
Current balanced push-pull inverter circuit with snubber and discharge circuitry
FUJIYOSHI TOSHIKAZU4 citations61
US8107265B2Jan 31, 2012
Current balanced push-pull inverter circuit with regeneration snubber circuit and voltage boost section
FUJIYOSHI TOSHIKAZU0 citations40