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3922776 |
Method for making narrow track ferrite core flying pads
A high yield method for manufacturing a narrow precisely defined track width ferrite core flying pad in which a core is bonded to a support piece after which a portion of the core adjacent an air...
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3913143 |
Magnetic head face assembly using chemically machinable glass ceramic bonding means
Precision-lapped pieces of ceramic and ferrite are stacked together with pieces of ceramic-convertible glass. Firing of the stack causes the glass to devitrify and results in a comb-less track...
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3899827 |
Method of manufacturing pole piece assembly for electromagnetic type pickup
A method of manufacturing a pole piece assembly for an electromagnetic-type pickup is disclosed. In the method a pole piece unit including a set of pole pieces integrally interconnected with each...
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3854199 |
MANUFACTURE OF MAGNETIC TRANSDUCING HEADS
A magnetic head production process is described which involves threading apertured laminations on to a centre member to form a bonded stack, machining opposite sides of the stack, bonding a...
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3851375 |
METHOD OF BONDING TOGETHER MOULDINGS OF SINTERED OXIDIC FERROMAGNETIC MATERIAL
In manufacturing in particular multi-channel magnetic heads, it is usual to place two ferrite blocks on each other with the interposition of spacing members, to cause glass to flow into the...
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3846906 |
METHODS OF MANUFACTURING MAGNETIC TRANSDUCING HEADS
A method of manufacturing magnetic transducing heads to facilitate testing of individual components of the head is disclosed. A head for digital recording on magnetic discs is made of a slider...
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3845550 |
METHOD OF MANUFACTURING A MAGNETIC HEAD
A method of constructing transducers is provided wherein a pair of rectangular ferrite blocks are processed to yield a plurality of magnetic heads, each having protective glass pockets formed...
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3846840 |
READ/WRITE AND LONGITUDINAL EDGE ERASE HEAD ASSEMBLY HAVING MULTIPLE SIMILARLY SHAPED LAYERS
A magnetic head assembly for cooperating with a relatively moving magnetic medium and for reading and/or writing one or several tracks of magnetic information and for erasing the edges and old...
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3842494 |
MULTICHANNEL MAGNETIC FERRITE HEAD AND A METHOD FOR MAKING THE SAME
A multichannel magnetic head consisting essentially of a plurality of magnetic ferrite heads and a plurality of glass spacers filling the spaces between each pair of adjacent magnetic ferrite heads...
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3840984 |
METHOD OF MAKING A MAGNETIC RECORDING HEAD
A method for making the core of a magnetic recording or playback head that comprises bending a flat strip of core material into an intermediate product, a W-form, i.e., having at its outer or...
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3839784 |
METHOD FOR FABRICATING MAGNETIC READ-WRITE HEAD ARRAY AND PRODUCT
A method for fabricating an array of read-write heads for a magnetic storage means, such as a disk or drum, is disclosed. Each head is comprised of a flux carrying means, such as a gapped magnetic...
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3824685 |
METHOD OF MAKING A FERRITE HEAD
In a method of manufacturing a ferrite magnetic head, a thin layer of glass is sputtered onto one or more discrete portions of a planar surface of each of two ferrite members, at least one of the...
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3816908 |
METHOD OF MAKING A MULTI-CHANNEL MAGNETIC HEAD
A method of making a multi-channel magnetic head composed of a stack of a plurality of single-turn elementary heads. The method includes the step of defining a hollow for a conductive rod, which...
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3810245 |
SINGLE CRYSTAL FERRITE MAGNETIC HEAD
A single crystal ferrite material magnetic head for a video tape recorder or other device which is formed with a pair of half-cores with an opening between them for winding and in which the...
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3807042 |
METHOD OF MAKING A MAGNETIC HEAD STRUCTURE
A magnetic head having a gap plate adhesively bonded to a core structure with a plurality of transducer gaps and inter-gap shields located in an integral construction and a method for making this...
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3798758 |
METHODS OF MAKING A CORE FOR A MAGNETIC RECORDING AND REPRODUCING HEAD WITH NARROW TRACK WIDTH
A method of making a magnetic recording and reproducing component includes, providing in a ferrite member a plurality of grooves defining side-by-side Vee shaped ridges which are reinforced by...
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3766640 |
METHOD OF MANUFACTURING MAGNETIC TRANSDUCERS
Magnetic transducing heads capable of reading and writing magnetic information in the form of a pattern of magnetization on a magnetic recording medium are provided utilizing a combination of...
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3760494 |
MAGNETIC HEAD ASSEMBLY
A method of manufacturing a magnetic head assembly wherein a pair of unitary body members, each made up of a plurality of alternating layers of magnetic material and spacer material, are joined...
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3750274 |
METHOD OF MAKING GLASS BONDED RECORDING HEADS
Disclosed is a method of fabricating recording heads, or transducers, for an electromagnetic recording device, and the resulting product. In a preferred embodiment, a pair of selectively geometric...
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3737993 |
METHOD OF MAKING A MULTI-CHANNEL MAGNETIC HEAD
A method of making a multi-channel magnetic head. Two magnetic core members having windings wound thereon are joined to each other on the flat surface of a support plate in order to make an...
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3735052 |
MAGNETIC HEAD ASSEMBLY USING TITANIUM DIOXIDE AND BARIUM TITANATE SLIDER
A magnetic head assembly includes a glass-gapped ferrite head bonded into a ceramic slider with a glass. The slider is made of a ceramic composition consisting essentially of the reaction product...
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3727303 |
METHOD OF FORMING GAPS FOR SMALL MAGNETIC HEADS
A small multi-element magnetic recording head reads and writes information on magnetic medium information tracks corresponding to head gaps. The head is a single magnetic strip having a plurality...
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3718776 |
MULTI-TRACK OVERLAPPED-GAP MAGNETIC HEAD, ASSEMBLY
A magnetic head reads and writes a plurality of information tracks, recorded as magnetization patterns on a magnetic recording medium, with two magnetic sheets mounted in a supporting frame....
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3710235 |
METHOD AND APPARATUS FOR TESTING BATCH FABRICATED MAGNETIC HEADS DURING MANUFACTURE UTILIZING A MAGNETIC FIELD GENERATED BY A CURRENT CARRYING CONDUCTOR
Magnetic head elements are batch fabricated on areas of a substrate. During manufacture, and before final separation and processing of the areas into discrete multi-track magnetic heads, defective...
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3701858 |
MULTICHANNEL MAGNETIC HEAD UNIT OF LAMINATED CONSTRUCTION
A multichannel magnetic transducer, wherein each of a plurality of aligned magnetic heads comprises a plurality of composite laminations, the composite laminations forming a magnetic circuit and...
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3668775 |
METHOD FOR MANUFACTURING MAGNETIC HEADS
A method for manufacturing magnetic heads having the tape travel surface partially covered with a non-magnetic material, comprising the steps of mounting a head core with the front side including a...
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3660892 |
METHOD FOR MAKING A MULTI-CHANNEL MAGNETIC HEAD
A method of making a multi-channel magnetic head. A support plate having a flat surface is provided, and a magnetic core having a winding wound thereon is placed on said flat surface of said...
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3648361 |
METHOD OF MANUFACTURING A MAGNETIC HEAD
A method of making an improved magnetic head used for recording and reproduction in a tape recorder. The magnetic head includes two core halves or pole pieces abutting against each other and...
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3634933 |
MAGNETIC HEAD METHOD
An integral multihead magnetic transducer and method of manufacturing the same which is for example suitable for use in contact or noncontact disc recording. The transducer is comprised of blocks...
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3621153 |
MAGNETIC READ/WRITE HEAD WITH PARTIAL GAP AND METHOD OF MAKING
A magnetic head having a plurality of read/write tracks, each track being formed of a single continuous lamina of high-permeability magnetic material which is wrapped around the edge of a support...
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3597836 |
METHOD OF MANUFACTURING A MULTICHANNEL MAGNETIC HEAD
A multichannel magnetic head. The head has a plurality of magnetic tip cores which are separated magnetically from each other by nonmagnetic materials and each having a magnetic gap. A plurality of...
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3593414 |
METHOD OF MANUFACTURING A MAGNETIC HEAD
A very precise method of manufacturing multiple magnetic heads which are to write, read and/or erase extremely narrow (<0.2 mm.) tracks situated beside each other, for example, video heads or...
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3562442 |
MULTI-TRACK MAGNETIC RECORDING HEADS AND METHOD OF CONSTRUCTION THEREFOR
The specification and drawings disclose a multiple track magnetic head in which long-wearing pole tip pieces are formed from a single block of material by first-cutting slots in the block, next...
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3550264 |
METHOD OF MANUFACTURING MAGNETIC HEADS
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3543396 |
METHOD OF MULTI-TRACK,TWO-GAP,FERRITE MAGNETIC HEADS DESIGNED ESPECIALLY FOR DIGITAL RECORDING
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3531859 |
METHOD FOR ACCURATELY DETERMINING GAP HEIGHTS OF POLE PIECES FOR MAGNETIC HEADS
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3514851 |
METHOD OF MANUFACTURING A MAGNETIC HEAD STRUCTURE
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3512253 |
METHOD FOR SIMULTANEOUSLY MAKING A PLURALITY OF FLYING HEADS
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3502821 |
MAGNETIC HEAD HAVING MAGNETICALLY NARROW GAP WITH WIDE GAP STRUCTURAL SUPPORT
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3499214 |
METHOD OF MAKING STATIONARY HEAD FOR MAGNETIC STORAGE MEDIUMS
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3614830 |
METHOD OF MANUFACTURING LAMINATED STRUCTURES
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3721000 |
METHOD OF MAKING A MAGNETIC HEAD
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3613228 |
MANUFACTURE OF MULTIELEMENT MAGNETIC HEAD ASSEMBLIES
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3624897 |
METHOD OF MAKING A FERRITE HEAD
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3557266 |
METHOD OF ELIMINATING THE POROSITY AND CONTROLLING THE GRAIN SIZE OF A FERRITE BODY BY A TWO STAGE HOT PRESSING TREATMENT
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3581390 |
METHOD OF FORMING SINGLE TURN MAGNETIC RECORDING HEADS
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3584375 |
PROCESS FOR MANUFACTURING A MAGNETIC SOUND HEAD CORE
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3557445 |
METHOD OF FABRICATING SLANT CORES
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3486220 |
METHOD OF MANUFACTURING MAGNETIC TRANSDUCERS
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3474528 |
METHOD OF MANUFACTURING A FLUX-SENSITIVE MONO- OR MULTI-TRACK MAGNETIC HEAD
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