Magnetic recording head, magnetic reproducing head, magnetic head, tape drive and disk drive

Abstract

A magnetic recording/reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording/reproducing capability, including: a plurality of magnetic recording/reproducing head layers each including magnetic recording/reproducing head elements fabricated by a thin film process and interposed between two insulating/magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording/reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording/reproducing head layer has a plurality of magnetic recording/reproducing head elements formed at a predetermined pitch.

What is claimed is:  
     
         1 . A magnetic recording head including a plurality of magnetic recording head layers laminated on a substrate made of a non-magnetic material, each of said plurality of magnetic recording head layers including magnetic recording head elements fabricated by a thin film process and interposed between two insulating layers, and all of said magnetic recording head elements being displaced from each other in a head width direction constituting an orthogonal direction relative to a direction of lamination, wherein 
 said plurality of magnetic recording head layers comprises a plurality of magnetic recording head elements formed at a predetermined pitch.    
     
     
         2 . The magnetic recording head according to  claim 1 , wherein any two magnetic recording head elements adjacent in the direction of lamination via an insulating layer share a common insulating layer.  
     
     
         3 . A magnetic reproducing head including a plurality of magnetic reproducing head layers laminated on a substrate made of a non-magnetic material, each of said plurality of the magnetic reproducing head layers including magnetic reproducing head elements fabricated by a thin film process and interposed between two magnetic shielding layers, and all of said magnetic reproducing head elements being displaced from each other in a head width direction constituting an orthogonal direction relative to a direction of lamination, wherein 
 said plurality of magnetic reproducing head layers comprises a plurality of magnetic reproducing head elements formed at a predetermined pitch.    
     
     
         4 . The magnetic reproducing head according to  claim 3 , wherein any two magnetic reproducing head elements adjacent in the direction of lamination via a magnetic shielding layer share a common magnetic shielding layer.  
     
     
         5 . The magnetic reproducing head according to  claim 3 , wherein any two magnetic reproducing head elements adjacent in the direction of lamination via two magnetic shielding layers further includes an insulating layer interposed between said two magnetic shielding layers.  
     
     
         6 . A magnetic head including a plurality of magnetic reproducing head layers each having magnetic reproducing head elements fabricated by a thin film process and interposed between two magnetic shielding layers and a plurality of magnetic recording head layers each having magnetic recording head elements fabricated by a thin film process and interposed between two insulating films, laminated on a substrate made of a non-magnetic material, and all of said magnetic reproducing head elements being displaced from each other in a head width direction constituting an orthogonal direction relative to a direction of lamination thereof, wherein 
 said magnetic reproducing head layers comprise a plurality of magnetic reproducing head elements formed at a predetermined pitch;    said magnetic recording head layers has a plurality of magnetic recording head elements formed at a same pitch as said plurality of magnetic reproducing head elements; and    each magnetic reproducing head element and each magnetic recording head element are formed approximately at a similar position in the head width direction, forming a pair.    
     
     
         7 . The magnetic head according to  claim 6 , wherein said magnetic reproducing head layers and said magnetic recording head layers are alternately laminated, and a magnetic reproducing head element and a magnetic recording head element forming a pair are adjacent in a direction of lamination via a magnetic shielding layer and an insulating layer.  
     
     
         8 . The magnetic head according to  claim 6 , further comprising: 
 a magnetic reproducing head layer group formed by laminating a plurality of magnetic reproducing head layers; and    a magnetic recording head layer group formed by laminating a plurality of magnetic recording head layers; wherein 
 said magnetic reproducing head layer group and said magnetic recording head layer group are laminated.  
   
     
     
         9 . A tape drive having a magnetic recording head for recording a signal on a recording medium in tape form and a tape running means for running said recording medium in tape form along a predetermined run path, wherein 
 said magnetic recording head comprises a plurality of magnetic recording head layers laminated on a substrate made of a non-magnetic material, each of said plurality of magnetic recording head layers including magnetic recording head elements interposed between two insulating layers, all of said magnetic recording head elements formed therein being displaced from each other in a head width direction constituting an orthogonal direction relative to a direction of lamination thereof; and    said plurality of magnetic recording head layers comprises a plurality of magnetic recording head elements formed at a predetermined pitch.    
     
     
         10 . The tape drive according to  claim 9 , wherein any two magnetic recording head elements adjacent via an insulating layer in the direction of lamination share a common insulating layer.  
     
     
         11 . A tape drive having a magnetic reproducing head for reproducing a signal from a recording medium in tape form and a tape running means for running the recording medium in tape form along a predetermined transport path, wherein 
 said magnetic reproducing head comprises a plurality of magnetic reproducing head layers laminated on a substrate made of a non-magnetic material, each of said plurality of magnetic reproducing head layers having magnetic reproducing head elements fabricated by a thin film process and interposed between two magnetic shielding layers, and all of the magnetic reproducing head elements formed therein being displaced from each other in a head width direction constituting an orthogonal direction relative to the direction of lamination thereof; and    said magnetic reproducing head layers comprise a plurality of magnetic reproducing head elements formed at a predetermined pitch.    
     
     
         12 . The tape drive according to  claim 11 , wherein any two magnetic reproducing head elements adjacent via magnetic shielding layers in the direction of lamination share a common magnetic shielding layer.  
     
     
         13 . The tape drive according to  claim 11 , further comprising an insulating layer provided between two magnetic shielding layers interposed between the two magnetic reproducing head elements which are adjacent via magnetic shielding layers in the direction of lamination.  
     
     
         14 . A tape drive provided with a magnetic head for recording and reproducing a signal to and from a recording medium in tape form, and a tape running means for running the recording medium in tape form along a predetermined running path, wherein 
 said magnetic head comprises a plurality of magnetic reproducing head layers each having magnetic reproducing head elements fabricated by a thin film process and interposed between two magnetic shielding layers, and a plurality of magnetic recording head layers each having magnetic recording head elements fabricated by a thin film process and interposed between two insulating layers, laminated on a substrate made of a non-magnetic material, all of the magnetic reproducing head elements therein being displaced from each other in a head width direction constituting an orthogonal direction relative to the direction of lamination, and all of the magnetic recording head elements therein being displaced from each other in the head width direction;    each magnetic reproducing head layer includes a plurality of magnetic reproducing head elements formed at a predetermined pitch;    each magnetic recording head layer includes a plurality of magnetic recording head elements formed at a similar pitch as that of the plurality of the magnetic reproducing head elements; and    each magnetic reproducing head element and each magnetic recording head element are formed approximately at a similar position in the head width direction, forming a pair.    
     
     
         15 . The tape drive according to  claim 14 , wherein 
 said magnetic reproducing head layers and said magnetic recording head layers are alternately laminated; and    said magnetic reproducing head element and said magnetic recording head element constituting the pair are adjacent in the direction of lamination via a magnetic shielding layer and an insulating layer.    
     
     
         16 . The tape drive according to  claim 14 , further comprising a magnetic reproducing head layer group formed by laminating a plurality of magnetic reproducing head layers, and a magnetic recording head layer group formed by laminating a plurality of magnetic recording head layers, wherein said magnetic reproducing head layer group and said magnetic recording head layer group are laminated.  
     
     
         17 . A disk drive provided with a magnetic head for recording and reproducing a signal to and from a disk-shaped recording medium, and a drive mechanism for rotating said disk-shaped recording medium, wherein 
 said magnetic head comprises: a plurality of magnetic reproducing head layers each including magnetic reproducing head elements fabricated by a thin film process and interposed between two magnetic shielding layers; and a plurality of magnetic recording head layers each including magnetic recording head elements fabricated by a thin film process and interposed between two insulating layers, both being laminated on a substrate made of a non-magnetic material, all of the magnetic reproducing head elements formed therein being displaced from each other in a head width direction constituting an orthogonal direction relative to a direction of lamination, and all of the magnetic recording head elements formed therein being displaced from each other in the head width direction;    each magnetic reproducing head layer comprises a plurality of magnetic reproducing head elements formed at a predetermined pitch;    each magnetic recording head layer comprises a plurality of magnetic recording head elements formed at a similar pitch as that of said plurality of magnetic reproducing head elements; and    each magnetic reproducing head element and each magnetic recording head element are formed approximately at a similar position in the head width direction, forming a pair.    
     
     
         18 . The disk drive according to  claim 17 , wherein said magnetic reproducing head layers and said magnetic recording head layers are alternately laminated, and a magnetic reproducing head element and a magnetic recording head element in a pair are adjacent via a magnetic shielding layer and an insulating layer in the direction of lamination.  
     
     
         19 . The disk drive according to  claim 17 , further comprising a magnetic reproducing head layer group formed by laminating a plurality of magnetic reproducing head layers, and a magnetic recording head layer group formed by laminating a plurality of magnetic recording head layers, wherein said magnetic reproducing head layer group and said magnetic recording head layer group are laminated.