Olympus Optical Company, Ltd.

Iwatsu Electric Company Ltd.

Olympus Opitcal Co., Ltd.

Satoshi Okabe

Sunao Aoki

Toshio Koike

Tamio Iwamoto

Nobuyoshi Hatori

Masanori Kai

Takao Aihara

Takashi Ogiwara

A drive unit for an optical memory device includes a casing having an insertion slot which is formed in a front section and through which a medium cartridge is inserted into an interior of the casing. A front cover member movably covers the insertion slot of the casing, and includes first and second covers which are rotatable around respective first and second rotation shafts. The first front cover has a distal end which is situated on an outer side of the casing when the insertion slot is closed, the second front cover has a distal end which is situated on an inner side of the casing when the insertion slot is closed, and the second front cover is rotated with a radius of rotation which differs from that of said first front cover.

Drive unit for optical memory device having first and second front covers

A drive unit for use in an optical memory unit has a front panel, a drive mechanism, and sealing members. The front panel has an air vent and a slot for allowing passage of a cassette case containing a disk-shaped recording medium. The drive mechanism loads the cassette case through the slot and drive the recording medium in a specified direction in order to record and reproduce information on and from the recording medium. The sealing members seals the drive mechanism nearly completely, in order to prevent migration of the outside air into the drive mechanism as the air is introduced via the air vent.

Drive unit for optical memory device having a first housing enveloping a

An information recording apparatus has first and second openings arranged near a field coil and flow guides beside the openings, so that an air current generated by a rotation of the medium is circulated through a space between a field coil and the information recording medium, as well as a space formed on an upper portion of said field coil. In the apparatus, an optical pick up is locked with respect to reckless stoppers with a space. Also, a field holder is arranged to be separated from a cassette case holder, but when the cassette case holder is moved in a horizontal direction and then in a perpendicular direction to be mounted on a turn table, the field holder is made to face the information recording medium. This arrangement prevents overheating and improves durability.

Self-cooling optomagnetic disk device with locking internal mechanism

A printing-plate making apparatus is constructed such that a mode selecting switch adapted to change a master supplying process depending on properties of a master X is disposed on a housing 1 of the printing-plate making apparatus and various conditions, e.g., a master supplying process, locking member 4 for a master supplying roller 3, a temperature preset for a panel heater 33 and a compressing force given by press rollers 35a and 35b are automatically changed to optimal conditions corresponding to masters selected by the mode selecting switch. The printing-plate making apparatus is provided with a master heating switch on the housing 1 of the printing-plate making apparatus and when the master heating switch is actuated, applying of a certain voltage to at least a charger is stopped so that the panel heater 33 arranged at a fixing step is kept in the heated state so as to serve as a master heating unit.

Printing plate making apparatus for two different kinds of masters

Drive unit for optical memory device with portion of drive means mounted

In an optical information recording/reproducing apparatus (2) such that a carriage (7), on which an optical pickup (5) for collectively applying a light beam on a recording medium (11) for information recording and reproduction is mounted, is movable along a movement passage (52) formed in a recessed portion (6) of a deck (4) by a movable mechanism (24) housed in the same recessed portion, cooling air introduced by a cooling device (1) using a fan (43) is blown against the movable mechanism (24) and the blown air is guided toward an exhaust side through a movement passage (52) formed in the vicinity of the movable mechanism (24).

Growing community of inventors

Hachioji, Japan

Satoshi Okabe