Inventor
OHSIMA KEN
JP4 patents
Patents
4 patentsUS4464050AAug 7, 1984
Apparatus for detecting optically defects
OLYMPUS OPTICAL CO66 citations95
US4520280AMay 28, 1985
Apparatus for detecting input signal
OLYMPUS OPTICAL CO14 citations73
US4837757AJun 6, 1989
Optical recording/reproducing device
OLYMPUS OPTICAL CO16 citations72
US4499572AFeb 12, 1985
Method for reading information or defect out of rotating disc
OLYMPUS OPTICAL CO6 citations62