Inventor
OISHI KENGO
JP161 patents
Patents
50 patentsUS4608617AAug 26, 1986
Magnetic recording disk cartridge
FUJI PHOTO FILM CO LTD72 citations95
US4844378AJul 4, 1989
Magnetic tape cassette having improved erasure preventing device
FUJI PHOTO FILM CO LTD26 citations93
US4840760AJun 20, 1989
Manufacturing method for magnetic tape cassette
FUJI PHOTO FILM CO LTD44 citations93
US4781879ANov 1, 1988
Method of making a magnetic recording disk
FUJI PHOTO FILM CO LTD33 citations93
US4638393AJan 20, 1987
Magnetic tape cassette having an improved braking mechanism
FUJI PHOTO FILM CO LTD35 citations93
US4549922AOct 29, 1985
Method of making magnetic disk cartridge
FUJI PHOTO FILM CO LTD27 citations93
US4536812AAug 20, 1985
Magnetic disk cartridge
FUJI PHOTO FILM CO LTD37 citations93
US4496118AJan 29, 1985
Magnetic tape cassette
FUJI PHOTO FILM CO LTD27 citations93
US5219074AJun 15, 1993
Magnetic tape cassette
FUJI PHOTO FILM CO LTD26 citations92
US4427166AJan 24, 1984
Magnetic tape cassette
FUJI PHOTO FILM CO LTD52 citations92
US4977474ADec 11, 1990
Magnetic tape cartridge requiring uniform force during leader block attachment and detachment
FUJI PHOTO FILM CO LTD32 citations89
US6826773B2Nov 30, 2004
Disc cartridge
FUJI PHOTO FILM CO LTD14 citations84
US6789261B2Sep 7, 2004
Disk cartridge
FUJI PHOTO FILM CO LTD14 citations84
US5186955AFeb 16, 1993
Mold for producing a magnetic tape cassette
FUJI PHOTO FILM CO LTD18 citations82
US5084223AJan 28, 1992
Mold and method for molding magnetic tape cassette
FUJI PHOTO FILM CO LTD18 citations82
US4763217AAug 9, 1988
Optical tape end detector in magnetic tape casette with means to compensate for misalignment of light source and refracting
FUJI PHOTO FILM CO LTD20 citations82
US4750075AJun 7, 1988
Magnetic disk cartridge with liners and a welded lifter
FUJI PHOTO FILM CO LTD24 citations82
US4742415AMay 3, 1988
Magnetic tape cassette having a guided reel brake pawl
FUJI PHOTO FILM CO LTD20 citations82
US4699268AOct 13, 1987
Magnetic recording disk cartridge
FUJI PHOTO FILM CO LTD22 citations82
US4618903AOct 21, 1986
Magnetic tape cassette
FUJI PHOTO FILM CO LTD22 citations82
US4497009AJan 29, 1985
Magnetic disk cartridge
FUJI PHOTO FILM CO LTD22 citations82
US4488190ADec 11, 1984
Magnetic recording disk cartridge
FUJI PHOTO FILM CO LTD21 citations82
US4365712ADec 28, 1982
Magnetic tape cassette receiving casing
FUJI PHOTO FILM CO LTD26 citations82
US4688127AAug 18, 1987
Magnetic recording disk cartridge with locking member
FUJI PHOTO FILM CO LTD19 citations81
US6985331B2Jan 10, 2006
Magnetic disk cartridge with housing composed of circular ARC and straight lines normal to each other
FUJI PHOTO FILM CO LTD15 citations80
US4389010AJun 21, 1983
Magnetic tape guide means
FUJI PHOTO FILM CO LTD21 citations79
US7086074B2Aug 1, 2006
Disk cartridge
FUJI PHOTO FILM CO LTD6 citations74
US6922312B2Jul 26, 2005
Disk cartridge having upper shell fitted inside lower shell to enclose lower shutter with upper shutter outside upper shell
FUJI PHOTO FILM CO LTD8 citations74
US6912725B2Jun 28, 2005
Disc cartridge
FUJI PHOTO FILM CO LTD11 citations74
US6826145B2Nov 30, 2004
Disk cartridge and drive device having a cleaning liner
FUJI PHOTO FILM CO LTD7 citations74
US6816340B2Nov 9, 2004
Disk cartridge
FUJI PHOTO FILM CO LTD8 citations74
US6772430B2Aug 3, 2004
Cartridge housing a recording medium and drive device for recording medium
FUJI PHOTO FILM CO LTD6 citations74
US6002556ADec 14, 1999
Adapter for magnetic disc cartridge
FUJI PHOTO FILM CO LTD13 citations74
US5724217AMar 3, 1998
Magnetic disk cartridge with shutter spring engaging portion and guide projection
FUJI PHOTO FILM CO LTD11 citations74
US5708547AJan 13, 1998
Magnetic disk cartridge
FUJI PHOTO FILM CO LTD8 citations74
US5115366AMay 19, 1992
Magnetic disk cartridge having a center core which engages with a drive spindle of a disk drive
FUJI PHOTO FILM CO LTD16 citations74
US4919873AApr 24, 1990
Method of molding magnetic tape cassette body half
FUJI PHOTO FILM CO LTD10 citations74
US4901180AFeb 13, 1990
Magnetic disk cartridge
FUJI PHOTO FILM CO LTD10 citations74
US4898338AFeb 6, 1990
Magnetic tape cassette
FUJI PHOTO FILM CO LTD15 citations74
US4886220ADec 12, 1989
Magnetic tape cassette
FUJI PHOTO FILM CO LTD18 citations74
US4796135AJan 3, 1989
Two layered tape pad for a magnetic tape cassette
FUJI PHOTO FILM CO LTD8 citations74
US4789113ADec 6, 1988
Hub locking mechanism in a magnetic tape cassette
FUJI PHOTO FILM CO LTD11 citations74
US4789916ADec 6, 1988
Magnetic disk cartridge
FUJI PHOTO FILM CO LTD7 citations74
US4754358AJun 28, 1988
Magnetic tape cassette hub with flush tape clamp
FUJI PHOTO FILM CO LTD7 citations74
US4752059AJun 21, 1988
Injection mold
FUJI PHOTO FILM CO LTD14 citations74
US4750074AJun 7, 1988
Magnetic tape cassette with tape locking means
FUJI PHOTO FILM CO LTD14 citations74
US4739433AApr 19, 1988
Method of cleaning magnetic recording disk of magnetic recording disk cartridge
FUJI PHOTO FILM CO LTD10 citations74
US4733316AMar 22, 1988
Magnetic tape cassette with slide guard ramp actuated cantilever locking lever
FUJI PHOTO FILM CO LTD10 citations74
US4698715AOct 6, 1987
Magnetic recording disk having center core secured by a base-less double-sided adhesive tape
FUJI PHOTO FILM CO LTD14 citations74
US4689702AAug 25, 1987
Magnetic tape cassette
FUJI PHOTO FILM CO LTD10 citations74
Showing the top 50 of 161 patents by PatentIndex Score.