Inventor
MIYAZAKI KOJI
JP50 patents
⚠️ This page may combine multiple inventors who share the name “MIYAZAKI KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
22 patentsUS6424100B1Jul 23, 2002
Fluorescent lamp operating apparatus and compact self-ballasted fluorescent lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations96
US5233273AAug 3, 1993
Discharge lamp starting circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD66 citations94
US6674131B2Jan 6, 2004
Semiconductor power device for high-temperature applications
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US6828740B2Dec 7, 2004
Electrodeless discharge lamp operating apparatus, electrodeless compact self-ballasted fluorescent lamp and discharge lamp operating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US6597127B2Jul 22, 2003
Discharge lamp operating apparatus, self-ballasted discharge lamp, dimmer and illumination kit for dimming
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US6522084B1Feb 18, 2003
Electrodeless discharge lamp operating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US5444336AAug 22, 1995
An inverter driven lamp arrangement having a current detection circuitry coupled to a resonant output circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations91
US5365152ANov 15, 1994
Apparatus for controlling the power to a discharge-lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD46 citations91
US5773937AJun 30, 1998
Discharge lamp-lighting apparatus for straightening arc discharge
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations90
US6727661B2Apr 27, 2004
Self-ballasted fluorescent lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US6504322B2Jan 7, 2003
Discharge lamp operating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6492773B2Dec 10, 2002
Self-ballasted fluorescent lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US6768254B2Jul 27, 2004
Self-ballasted electrodeless discharge lamp and electrodeless discharge lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations83
US6661185B2Dec 9, 2003
Dimmable self-ballasted fluorescent lamp and discharge lamp operating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations83
US6657401B2Dec 2, 2003
Ballast for discharge lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations83
US6650068B2Nov 18, 2003
Induction coil core, illumination unit using the same, and polycrystalline ferrite
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6509698B1Jan 21, 2003
Operating apparatus of discharge lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6147461ANov 14, 2000
Operating apparatus of discharge lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6211620B1Apr 3, 2001
Ballast for fluorescent lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US6130508AOct 10, 2000
Method and apparatus for operating a discharge lamp to reduce the curvature of its discharge arc
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
US6809479B2Oct 26, 2004
Self-ballasted electrodeless discharge lamp and electrodeless discharge lamp operating device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6653783B2Nov 25, 2003
Self-ballasted electrodeless discharge lamp with startability improving means
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations61