Inventor

SAKUMA KATSUYA

JP2 patents

Patents

2 patents

US7397221B2Jul 8, 2008

Battery protection device, battery protection system using the same, and battery protection method

MITSUMI ELECTRIC CO LTD11 citations80

US7317362B2Jan 8, 2008

Oscillator circuit and oscillation control method

MITSUMI ELECTRIC CO LTD7 citations69