Master information magnetic recorder
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKeizo Miyata, Tatsuaki Ishida, Taizou Hamada, Kiyokazu Tohma, Hiroshi Ryonai
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKeizo Miyata, Tatsuaki Ishida, Taizou Hamada, Kiyokazu Tohma, Hiroshi Ryonai
Estimating the term…
A master-information magnetic recording apparatus for recording preformat information signals into a magnetic recording medium using a ferromagnetic film pattern formed on a master information carrier, in which the pattern corresponds to the preformat information signals. With the master information carrier in contact with the magnetic recording medium, the ferromagnetic film pattern is magnetized by a magnetic field applying device. Thus, the preformat information signals are recorded into the magnetic recording medium. The magnetic field applying device is so constructed that the direction of magnetizing the ferromagnetic film pattern is perpendicular to a track-scanning orbit of a magnetic head in a recording and reproducing apparatus in which the magnetic recording medium is installed. It enables the magnetic head to gain sufficient reproduction amplitude for track-scanning for reproducing the information signals.
A master-information magnetic recording apparatus for recording predetermined information signals into a magnetic recording medium having a ferromagnetic layer, by using a master information carrier comprising a substrate on which a ferromagnetic film pattern corresponding to predetermined information signals is formed, comprising:
A method of recording predetermined information signals into a magnetic recording medium having a ferromagnetic layer, comprising the steps of:
Dependencies are inferred from the claim text.