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5541796 Cassette case board and release part for recording medium cassette  
A recording medium cassette comprises a cassette case cassette case board and a release part. The cassette case board has a plurality of board terminals and also has positioning holes formed in its...
5540973 Magnetic recording medium and a method for manufacturing such medium  
A magnetic recording medium with improved friction and levitation characteristics and undiminished electromagnetic conversion characteristics, and a method for manufacturing such a medium, are...
5541797 Tape cartridge base plate comprising a novel aluminum alloy  
A tape cartridge comprising a flat base plate and component parts mounted on the plate, including pins that are nominally perpendicular to the base plate and which support and facilitate tape...
5541795 Tape cassette having an open/close mechanism  
A tape cassette including a housing accommodating a pair of tape reels around which a tape is wound, the housing having a front opening at a front face where the tape is exposed in a state of being...
5537280 Tape cassette  
A tape cassette capable of being readily assembled irrespective of a lid for covering a tape being constituted by three lid member and effectively preventing disengagement of a support shaft of the...
5537279 Tape cassette and magnetic recording/reproducing device  
A tape cassette comprising an insertion opening disposed in a main body case and a detecting optical path, for detecting the leading and rear ends of a tape, interposed between the insertion...
5531394 Magnetic tape cassette having variable force reel pressing device  
A magnetic tape cassette includes a leaf spring and magnetic tape reels in which the depression force of the leaf spring is varied such that, in assembling the cassette, the leaf spring provides a...
5529256 Dual reel-locking mechanism for compact tape cassette  
A compact size tape cassette including a pair of brake mechanisms associated with supply and take-up reel hubs for simultaneously locking the reel hubs in position against rotation relative to a...
5526209 Tape cassette with reduced wear of positioning holes  
A tape cassette comprises a cassette proper for containing therein a recording tape. The cassette proper is constructed of a plastic. At least one positioning opening with a collar therearound is...
5522668 Plastic chassis having a mounting construction of a rod-like member  
A plastic chassis is provided in which a shaft is fixed to the chassis even if a snap fitting integrally formed with the chassis is broken. An arm member having a claw portion is formed around a...
5524005 Cartridge for a recording reproducing medium having a shutter configured to reduce damage to the casing  
A cartridge for a recording/reproducing medium has a shutter for opening and closing a window opening formed in a casing in which a projection or a gate formed at an outer edge of the shutter is...
5521780 Tape cassette and magnetic recording/reproducing apparatus used therefor  
The present invention has been achieved to provide a novel tape cassette capable of stable and excellent magnetic recording and reproducing operations realizes highly accurate head touch necessary...
5518196 Tape cassette having different diameter tape reels  
A cassette tape is constructed so that a radius of one reel side in a condition where to a middle point of a magnetic tape wound on a reel with a same radius k is a radius of a large-diameter reel,...
5517377 Endless-loop tape cassette with backstop and transmission mechanism  
An endless-loop tape cassette includes an endless-loop magnetic tape; and a disk which has a portion of the magnetic tape wound in a stack thereon, and which is rotatable along with one of a supply...
5515223 Cleaning cassette for magnetic heads  
A cleaning cassette for magnetic heads in a cassette drive includes at least one container with cleaning fluid, comprising an at least partially flexible hollow body, at least one valve device and...
5515216 Data storage cartridge having a case with recesses accommodating flanges of tape reels and a drive roller  
The present invention provides a data cartridge having a cartridge case (1) capable of containing either of two kinds of magnetic tapes differing from each other in width. The data cartridge is...
5508871 Continuous audio and video tape  
A continuous magnetic tape cassette for use in a magnetic tape recording and/or reproducing apparatus. The cassette comprises a casing for housing a magnetic tape, which has two ends connected...
5508870 Cassette having multilayer molded cassette half  
A tape cassette includes a pair of cassette halves and a pair of hubs enclosed between the cassette halves, and about which a recording medium, or tape can be wound. Each cassette half includes a...
5506738 Tape cassette with tape guide support structure  
A tape cassette includes a pair of pinch rollers 118, 119 for guiding a magnetic tape T movably provided in a cassette opening 75 of shell body 71. Both ends of a roller shaft 124, 125 rotatably...
5506739 Tape cassette with slidably guided, spring-biased reel locking means  
A tape cassette having a reel lock mechanism which includes a slider adapted to slide in frontward and rearward directions within a cassette housing; a pair of lock pawls adapted to engage with...
5504634 Video tape cassette adapter  
An improved tape cassette adapter uses a mono-directionally operable motor having a worm rod attached to the end of the output shaft thereof that is engaged with a speed variation gear set. The...
5503348 Opening and closing of a front lid of a tape cartridge  
A tape cartridge provided with a slider member slidably mounted for sliding movement in forward and backward directions at an outer side under surface on the bottom wall of a main casing for...
5504644 Recording/erasing prevention device  
A tape cartridge includes a casing having an upper portion and a lower portion. A channel formed in the upper of portion of the casing is disposed at a corner portion defined by an external upper...
5502608 Tape cassette  
In a tape cassette having a case with a mouth for receiving a magnetic head drum of a recording/reproducing apparatus and containing a recording tape wound on rotatable reels and including a tape...
5495992 Belt-driven magnetic tape cartridge having a device for applying mechanical tension to the tape in the cartridge  
A device for applying a mechanical tension to a tape in a cartridge of the type having an internal belt for moving the tape, particularly a fast-running tape that is to be unwound from a first reel...
5497279 Tape cartridge and recording reproduction apparatus for the tape cartridge  
A tape cartridge is arranged so that when an upper lid of a pocket portion of the tape cartridge is in a position for opening the upper side of the pocket portion, the upper lid is positioned above...
5493455 Recording apparatus using a tape cassette with a memory  
A memory is provided in a tape cassette and it consists of a program information area for recording information on each program recorded on a tape and a tape information area for recording...
5492284 Tape cartridge connector lock  
A single reel supply cartridge is provided with a lock clip which restrains a tape connector within the mouth of the cartridge. The lock-clip is released by the insertion of a release pin in to the...
5490029 Compliant tape guide for data cartridges  
A compliant tape guide for magnetic tape transported in a belt driven data cartridge which resiliently engages one edge of a tape and urges the tape to a position against a fixed flange. The...
5488517 System comprising a magnetic-tape cassette and a magnetic-tape apparatus, and magnetic-tape cassette, tape-cleaning means and tape-cleaning element for use in the system  
A system including a magnetic-tape cassette and a magnetic-tape apparatus for recording and/or reproducing information in digital form on/from a magnetic tape. The information is stored in a...
5486971 Central hubs for flexible magnetic data discs formed of magnetically soft polyacetal compositions  
Flexible sheet-like magnetic discs (so-called 37 floppy discs") are provided with a central hub formed of a magnetically soft polyacetal composition. The polyacetal composition necessarily includes...
5481415 Recording/reproducing apparatus that handles both digital and analog data and distinguishes between the two  
A digital signal source and an analog signal source, such as might be contained in a video tape cassette, can be discriminated from each other in a video tape recorder by providing only a minimum...
5479097 Data corruption detector for magnetic media  
A tape cartridge or other physical volume includes a housing configured to accommodate magnetic data storage media, such as a reel of magnetic tape. A magnetic field detector is coupled to the...
5479312 Tape cartridge system implementing variable sized tape cartridges designed for use on the same recording/reproducing apparatus  
A tape system for implementing tape cassettes of variable size which includes both large-sized and small-sized tape cartridges each housing a memory element having a set of terminals for electric...
5479311 Magnetic tape cassette having improved magnetic tape substrate and tape guide for reducing electrostatic charging  
A magnetic tape cassette whose reliability is considerably improved by preventing triboelectrification by tape-and-guide friction. A metal tape guide for guiding the magnetic tape while in contact...
5475555 Cassette condition indicating device having plug with multiple selectable positions  
A tape cassette for a recording/reproducing apparatus comprises a cassette casing comprising an upper half and a lower half, a front cover provided to cover a front opening portion of the cassette...
5474968 Printing tape and printing-tape cartridge  
Disclosed is a printing tape T having a support sheet 4, a heat-sensitive layer 3 including thermal chromogenic material formed on one surface of the support sheet 4, a protection layer 2 formed on...
5474249 Method for producing tape leaders for hubs  
A tape cassette is provided which has indicia indicating the characteristics of the tape contained therein. In one embodiment an information discriminating mark, capable of being optically sensed...
5473688 Auditing system for single play tape cassette  
A tape cassette or the like employs a resettable counter that disables the playing of the cassette after a limited number of playings consistent with home use. The small number of playings is...
5468065 Molded tape cassette  
In order to produce a cassette, such as tape cassette, disc cassette or the like, the following steps are taken. First, fixed and movable dies are prepared which are unitable to define therewithin...
5469319 Magnetic tape cassette having tape edge regulating members  
A magnetic tape cassette having tape reels on which a magnetic tape is wound, includes magnetic tape regulating members one end portion of which is securely fixed on the magnetic tape cassette,...
5465187 Magnetic tape cartridge having leader block retainer mechanism  
The improved magnetic tape cartridge includes a leader block retainer mechanism that provides a positive locking function to automatically secure the leader block in place in the opening of the...
5461530 Magnetic tape cassette having a rocking guard panel  
A magnetic tape cassette in which a mechanism for engaging a guard panel with a lower cassette half is simplified, the assembly process thereof is highly efficient, and the cassette is produced...
5455722 A cassette having a recording medium for use with a recording/reproducing apparatus  
A cassette having a recording medium contained therein for use with a recording/reproducing apparatus. The cassette includes a storage device for storing information pertaining to the recording...
5453897 Information storage cartridge containing desiccant material  
An information storage cartridge to be utilized within an electronic device so as to record and/or store information, the cartridge including a housing with a hollow interior wherein an information...
5453896 Tape cassette with coordinated front and rear lids and a front rim member for protection of the tape and a rotatable lever connecting the lids  
The present invention discloses a tape cassette having a front lid for protecting a magnetic surface of a magnetic tape accommodated in a casing made of upper and lower half members against dust or...
5452150 Data cartridge with magnetic tape markers  
The tape in a data cartridge has a beginning of tape (BOT) zone adjacent a leading end, a load point (LP) zone adjacent the BOT zone, an end of tape (EOT) zone adjacent a trailing end, an early...
5448440 Data storage device with roller lubricant that provides excellent drag force characteristics  
A data storage device, of the type having a roller mounted on a shaft, wherein the roller has a central bore adapted to receive the shaft, and wherein a lubricant is provided between the shaft and...
5447278 Tape drive and cassette with precise registration  
A tape transport system has a cassette housing with two stationary generally cylindrical guide members. The bottom wall has two openings extending therethrough, each of which receive one end of a...
5440439 Cassette screw bosses having ribbed surfaces  
A videocassette housing includes a base connected to a cover. Cover bosses are received within respective base bosses, and the cover is connected to the base by fasteners passing through the base...