Inventor
UMEBAYASHI NOBUHIRO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “UMEBAYASHI NOBUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI MAXELL
11 patentsUS5774313AJun 30, 1998
Magnetic disk which reduces deterioration in regenerated signals due to optical servo grooves
HITACHI MAXELL23 citations92
US5319507AJun 7, 1994
Recording/reproducing system using a flexible magnetic disk
HITACHI MAXELL29 citations92
US7728902B2Jun 1, 2010
Imaging device and biometrics authentication apparatus
HITACHI MAXELL20 citations83
US4695910ASep 22, 1987
Recording disc cartridge having an improved hub assembly
HITACHI MAXELL24 citations81
US5952074ASep 14, 1999
Magnetic recording medium
HITACHI MAXELL7 citations73
US5587860ADec 24, 1996
Magnetic disc cartridge including a magnetic disc having a cleaning sheet composed of a non-theroplastic fiber
HITACHI MAXELL10 citations73
US5430594AJul 4, 1995
Magnetic recording medium
HITACHI MAXELL7 citations73
US5355270AOct 11, 1994
Magnetic recording medium having a reference track structure for improved optical tracking
HITACHI MAXELL5 citations62
US4875121AOct 17, 1989
Magnetic head supporting device
HITACHI MAXELL5 citations62
US4796129AJan 3, 1989
Magnetic head device for improving head placement on a magnetic disc
HITACHI MAXELL3 citations62
US5789062AAug 4, 1998
Magnetic recording medium
HITACHI MAXELL0 citations47