Inventor
SAKAMOTO KAZUSHIGE
JP2 patents
Patents
2 patentsUS7423380B2Sep 9, 2008
Metal halide lamp that has desired color characteristic and is prevented from non-lighting due to leakage of arc tube attributable to crack occurring at thin tube, and lighting apparatus adopting the metal halide lamp
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations60
US7230389B2Jun 12, 2007
Metal halide lamp having function for suppressing abnormal discharge
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60