Inventor
ISHII YUWA
JP7 patents
⚠️ This page may combine multiple inventors who share the name “ISHII YUWA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIKON CORP
6 patentsUS5602824AFeb 11, 1997
Optical disk capable of recording information on both land and groove tracks
NIKON CORP54 citations89
US7369224B2May 6, 2008
Surface inspection apparatus, surface inspection method and exposure system
NIKON CORP13 citations83
US4853923AAug 1, 1989
Maneto-optical recording apparatus with path length compensated dual photo-electric conversion
NIKON CORP9 citations72
US5206844AApr 27, 1993
Magnetooptic recording medium cartridge for two-sided overwriting
NIKON CORP7 citations71
US5131744AJul 21, 1992
Mirror rotation angle detection mechanism
NIKON CORP13 citations70
US5991243ANov 23, 1999
Data playback device to control a laser illuminating position by comparing phase of a laser drive signal and a laser tracking error detection signal
NIKON CORP8 citations68