Evenson, McKeown, Edwards & Lenahan P.L.L.C.
Magneto-optical card recording apparatus employing an initialization magnet and a recording magnet
 A rotary type pickup apparatus adopting a light modulation system, is capable of over-writing and suitable for miniaturization. In the optical pickup apparatus constituted by a stationary optical part and a rotary optical part which comprises an objective lens and a light beam guiding device, a recording magnet and an initialization auxiliary magnet are provided in the rotary optical part, the recording magnet being disposed close to the objective lens and the initialization auxiliary magnet being positioned over a rotation circumference where the objective lens rotates. Further provided are a recording magnet and an initialization auxiliary magnet which are disposed so as to pinch a magnetooptical recording medium together with the objective lens, the initialization auxiliary magnet being positioned behind the recording magnet in a sending direction of an optical card. 
Pioneer Electronic Corporation
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G11B G11B G11B
inventional inventional additional
Yasumitsu Shinji Hiroshi Fumihiko Naoharu Masanori
Suzuki Suzuki Suzuki Sano Yanagawa Nakahara