Inventor

KUMAGAI JUN

JP17 patents

⚠️ This page may combine multiple inventors who share the name “KUMAGAI JUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KUMAGAI JUN

KUMAGAI JUN

High-pressure discharge lamp ballast with multi-mode lamp starting circuit

High-pressure discharge lamp lighting device and lighting fixture using the same

High-voltage discharge lamp lighting device and lighting fixture

Electronic ballast and method for providing a DC voltage component during lamp startup

MATSUSHITA ELECTRIC WORKS LTD

Discharge lamp lighting apparatus, luminaire and illumination system

High-pressure discharge lamp operation device and illumination appliance having the same

Discharge lamp lighting device

KOMATSU NAOKI

High pressure discharge lamp lighting device and illumination instrument

High pressure discharge lamp lighting device and lighting fixture using the same

NAGATA SATORU

Discharge lamp lighting device, lighting fixture, and lighting system

Electronic ballast with lamp flicker suppression during start-to-steady state transition

YUFUKU AKIRA

High pressure discharge lamp lighting device and lighting fixture using the same

YAMAHARA DAISUKE

High pressure discharge lamp lighting device and luminaire using same

MATSUZAKI NOBUTOSHI

Discharge lamp ballast with feedback current control during an electrode heating operation

PANASONIC ELEC WORKS CO LTD

High voltage discharge lamp lighting device

UNIV OSAKA

Fused ring compound, method for producing the same, polymer, organic thin film containing the compound and/or polymer, and organic thin film device and organic thin film transistor each comprising the organic thin film

TAIYO YUDEN KK

Multilayer coil component and method for manufacturing same, as well as circuit board carrying multilayer coil component