Magnetic head assembly and magnetic tape drive unit and magnetic disk drive unit using magnetic head assembly

A magnetic tape drive unit comprising a magnetic head assembly for recording signals on a tape shaped recording medium and tape driving means for making the tape shaped recording medium to travel along a predetermined traveling path, wherein:

• said magnetic head assembly comprises a magnetic recording head made by a thin film forming process;
• said magnetic recording head includes a substrate, a first magnetic core formed on said substrate, a second magnetic core formed in a condition with a front end portion thereof having a predetermined gap (referred to as a “magnetic gap” below) with respect to a front end portion of said first magnetic core and with a back end portion thereof connected to said first magnetic core, and a coil disposed between said first magnetic core and said second magnetic core for developing a magnetic flux between end portions of said first and second magnetic cores;
• a width of said second magnetic core at the front end portion is formed equal to or smaller than that of said first magnetic core;
• and
• said second magnetic core is positioned at a leading side relative to said first magnetic core in a traveling direction on a tape shaped recording medium.

A magnetic disk drive unit comprising a magnetic head assembly for recording signals on a disk shaped recording medium and a rotary driving mechanism for rotating the disk shaped recording medium, wherein:

• said magnetic head assembly comprises a magnetic recording head fabricated in a thin film forming process;
• said magnetic recording head includes a substrate, a first magnetic core formed on said substrate, a second magnetic core formed in a condition with a front end portion thereof having a predetermined gap (referred to as a “magnetic gap” below) with respect to a front end portion of said first magnetic core and with a back end portion thereof connected to said first magnetic core, and a coil disposed between said first magnetic core and said second magnetic core for developing a magnetic flux between the front end portions of said first and second magnetic cores;
• a width of said second magnetic core at the front end portion thereof is equal to or smaller than that of said first magnetic core;
• and
• said second magnetic core rather than said first magnetic core is positioned at a leading side in a traveling direction on a disk shaped recording medium.