Inventor

OOYAMA MASACHIKA

JP4 patents

Patents

4 patents

US6274983B1Aug 14, 2001

High pressure mercury lamp with particular electrode structure and emission device for a high-pressure mercury lamp

USHIO ELECTRIC INC15 citations82

US5957570ASep 28, 1999

Reflector discharge lamp

USHIO ELECTRIC INC17 citations81

US5773932AJun 30, 1998

Metal halide lamp with reduced color shadowing

USHIO ELECTRIC INC7 citations72

US5973454AOct 26, 1999

Short arc type metal halide lamp with encapsulated rare earth metal halides to increase color reproducibility

USHIO ELECTRIC INC8 citations68