Inventor
MAEDA HIDENARI
JP3 patents
Patents
3 patentsUS6229631B1May 8, 2001
Signal transmission system and method for supervising the same
OKI ELECTRIC IND CO LTD163 citations97
US5119391AJun 2, 1992
Automatic frequency control circuit for coherent diversity reception
OKI ELECTRIC IND CO LTD20 citations80
US5790301AAug 4, 1998
Optical filter module and optical amplification using it
OKI ELECTRIC IND CO LTD12 citations73