Inventor
YASUFUKU YOSHITAKA
JP17 patents
Patents
17 patentsUS4731292AMar 15, 1988
Magnetic recording medium
KONISHIROKU PHOTO IND53 citations95
US5294525AMar 15, 1994
Silver halide photographic light-sensitive material capable of magnetic-recording
KONISHIROKU PHOTO IND53 citations92
US4555443ANov 26, 1985
Magnetic recording medium
KONISHIROKU PHOTO IND27 citations92
US4832301AMay 23, 1989
Hanger
KONISHIROKU PHOTO IND96 citations91
US4562117ADec 31, 1985
Magnetic recording medium and a process of fabricating such magnetic recording medium
KONISHIROKU PHOTO IND43 citations89
US5035856AJul 30, 1991
Magnetic recording medium
KONISHIROKU PHOTO IND12 citations73
US4761338AAug 2, 1988
Magnetic recording medium
KONISHIROKU PHOTO IND13 citations73
US4399443AAug 16, 1983
Ink composition and method for ink jet recording
KONISHIROKU PHOTO IND14 citations73
US4684572AAug 4, 1987
Magnetic recording medium
KONISHIROKU PHOTO IND14 citations72
US4652496AMar 24, 1987
Magnetic recording medium
KONISHIROKU PHOTO IND13 citations72
US4710427ADec 1, 1987
Process for treating magnetic metal power
KONISHIROKU PHOTO IND9 citations71
US4951167AAug 21, 1990
Magnetic tape cassette with improved front cover supporting mechanism
KONISHIROKU PHOTO IND7 citations70
US5335876AAug 9, 1994
Tape cassette lid-locking device
KONISHIROKU PHOTO IND3 citations62
US5318826AJun 7, 1994
Information recording medium comprising a silver nalide light sensitive layer, and two superposed magnetic layers which differ in coercivity
KONISHIROKU PHOTO IND5 citations62
US5055349AOct 8, 1991
Magnetic recording medium
KONISHIROKU PHOTO IND6 citations61
US5284716AFeb 8, 1994
Magnetic recording medium
KONISHIROKU PHOTO IND1 citations51
US5041939AAug 20, 1991
Magnetic tape cassette with leaf-shaped spring door closure mechanism
KONISHIROKU PHOTO IND1 citations49