Inventor
NOZU SHINSAKU
JP4 patents
Patents
4 patentsUS4663750AMay 5, 1987
Focus error detection device for an optical recording/playing back system
PIONEER ELECTRONIC CORP11 citations72
US4658391AApr 14, 1987
Focus error detection device for an optical recording/playing back system
PIONEER ELECTRONIC CORP9 citations72
US4841518AJun 20, 1989
Clamping mechanism for information recording disk
PIONEER ELECTRONIC CORP11 citations71
US5090000AFeb 18, 1992
Height adjusting device for a pickup
PIONEER ELECTRONIC CORP3 citations61