Inventor

FUKUNAGA KEIGO

JP4 patents

Patents

4 patents

US6126143AOct 3, 2000

Hoisting winch for lifting and lowering

MITSUBISHI ELECTRIC CORP25 citations88

US6497380B2Dec 24, 2002

Drum winding apparatus

MITSUBISHI ELECTRIC CORP6 citations60

US11175520B2Nov 16, 2021

Optical semiconductor device and method for manufacturing the same

MITSUBISHI ELECTRIC CORP1 citations59

US11389898B2Jul 19, 2022

Laser processing apparatus, laser processing method, and method for manufacturing semiconductor apparatus

MITSUBISHI ELECTRIC CORP0 citations47