Inventor

NAKAGAWA ATSUJI

JP22 patents

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

NAKAGAWA ATSUJI

PHOENIX ELECTRIC CO LTD

Mount for lamp and lamp seal structure employing the mount

Discharge lamp with ventilation passage

Ultra-high pressure discharge lamp lighting method, ultra-high pressure discharge lamp to which the method is applicable and ballast for use therein, and lighting system incorporating the lamp and the ballast

Projection system using a high-pressure discharge lamp adapted to d.c. lighting, and method of operating the same

Projection-type system and method of operating the same

Lighting circuit for high-pressure discharge lamp

Method and device for lighting high pressure discharge lamps

Direct current discharge lamp and light source having the discharge lamp attached to reflector

Ultra-high pressure discharge lamp

Electric discharge lamp with an improved sealing structure improving uniformity of light output and method of making

Metal halide lamp

LED lamp

Starting circuit of starting device for high-pressure discharge lamp including auxiliary light source, starting device including the starting circuit, and lighting system including the starting device

Light source device

Method and circuit for lighting high-pressure discharge lamp

Manufacturing method of high-pressure discharge lamp and sealed part structure for high-pressure discharge lamp

Manufacturing method of high-pressure discharge lamp and sealed part structure for high-pressure discharge lamp

High pressure discharge lamp and lighting method thereof

TOSHIBA MATERIALS CO LTD

Light emitting device and LED light bulb

Light emitting device and LED light bulb

RUBYCON CORP

Power supply unit for light source and method of controlling the same

PHOENIX ELECTRIC CO LT D

High-pressure discharge lamp and light sources device using the same