Inventor
YUASA MASAMI
JP6 patents
⚠️ This page may combine multiple inventors who share the name “YUASA MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
4 patentsUS4617499AOct 14, 1986
Brushless motor
SONY CORP20 citations79
US5771220AJun 23, 1998
Output control apparatus of semiconductor laser device
SONY CORP8 citations65
US4599663AJul 8, 1986
Recording apparatus with stable disc support and high magnetic flux hold-down
SONY CORP6 citations62
US7099243B2Aug 29, 2006
Optical pickup apparatus, optical disc apparatus, and tracking control method thereof
SONY CORP1 citations51