Sony Corporation

Sony Corpotation

Akio Matsuda

Yoshitaka Aoki

Takatsugu Funawatari

Sunao Aoki

Kiyoshi Ohmori

Takakiyo Kanazawa

Shizuo Arai

An optical pickup device capable of irradiating laser beams on a signal recording surface of magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access.

Optical pickup device in recording and/reproducing apparatus

A recording and reproducing apparatus having a holder for holding an inserted cartridge with a recording medium stored therein in which a recording medium is loaded or unloaded at the recording and reproducing position for recording and/or reproducing information as the holder is elevated or lowered, including a driver on which the recording medium rests at the recording and reproducing position and driving the recording medium for recording and/or reproduction and an elevator having an elevating and lowering operation cam formed on its side portion and elevating or lowering the holder when it is slid in parallel to the direction in which the cartridge is inserted. The elevator includes first and second slide members each having cam grooves formed on its side surfaces and the first and second slide members are coupled together with a predetermined clearance such that they can be fine moved relatively, whereby the cartridge with the recording medium stored therein can be loaded and unloaded stably and reliably.

Recording and reproducing apparatus with lock and release mechanism

An optical pickup device capable of irradiating laser beams on a signal recording surface of a magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access.

Recording and reproducing apparatus having elevation mechanism

A recording and reproducing apparatus having a holder for holding an inserted cartridge with a recording medium stored therein in which a recording medium is loaded or unloaded at the recording and reproducing position for recording and/or reproducing information as the holder is elevated or lowered, including a drive portion on which the recording medium rests at the recording and reproducing position and driving the recording medium for recording and/or reproduction and an elevating portion having an elevating and lowering operation cam formed on its side portion and elevating or lowering the holder when it is slid in parallel to the direction in which the cartridge is inserted. The elevating portion includes first and second slide members each having cam grooves formed on its side surfaces and the first and second slide members are coupled together with a predetermined clearance such that they can be fine moved relatively, whereby the cartridge with the recording medium stored therein can be loaded and unloaded stably and reliably.

Recording and reproducing apparatus

A disk cartridge is provided for storing a recording disk in a space formed by fastening an upper half and a lower half. At least either the upper half or the lower half has a pair of groove portions defined on its right and left side surfaces from the front end to the central portion direction so as to oppose a mis-insertion preventing protrusion portion formed on a disk drive. Engagement concave portions which are engaged and held by the holding member disposed within the disk drive when the disk cartridge is loaded into the disk drive are provided on the inner surfaces of the groove portions.

Growing community of inventors

Kanagawa, Japan

Akio Matsuda