High-density magnetic recording and reproducing head

A magnetic recording head for recording a signal on a magnetic recording medium having a perpendicularly magnetizable film, comprising:

• a magnetic sensing section comprising a slender needle of a soft magnetic material;
• exciting means for magnetizing said slender needle to record a signal on the magnetic recording medium as said recording head and said magnetic recording medium are moved relative to each other, and
• further including a shield case disposed around said magnetic sensing section with a dielectric layer interposed therebetween.

A magnetic reproducing head for reproducing a signal recorded on a magnetic recording medium as they are moved relative to each other comprising, a magnetic sensing section comprising a slender needle of a soft magnetic material,

• means for applying high-frequency electric energy to said magnetic sensing section to produce a reflected wave, and for detecting a change in the reflected wave caused by a leakage magnetic field produced by a signal recorded on the magnetic recording medium, thereby reproducing the signal recorded on the magnetic recording medium, and wherein said slender needle comprises a tapered pointed needle-shaped dielectric member and a layer of soft magnetic material deposited on and 360 degrees around said needle-shaped dielectric member.

A magnetic reproducing head for reproducing a signal recorded on a magnetic recording medium as they are moved relative to each other comprising, a magnetic sensing section comprising a slender needle of a soft magnetic material,

• means for applying high-frequency electric energy to said magnetic sensing section to produce a reflected wave, and for detecting a change in the reflected wave caused by a leakage magnetic field produced by a signal recorded on the magnetic recording medium, thereby reproducing the signal recorded on the magnetic recording medium, and
• further including a shield case disposed around said magnetic sensing section with a dielectric layer interposed therebetween.