Inventor

KANETSUKA KEIKO

JP3 patents

Patents

3 patents

US5223990AJun 29, 1993

Data recording apparatus

SONY CORP5 citations59

US5901005AMay 4, 1999

Magnetic recording and reproducing apparatus having a drum preamplifier with improved S/N and dynamic range

SONY CORP0 citations38

US5636074AJun 3, 1997

Recording signal amplifier apparatus

SONY CORP0 citations36