Abstract: An ophthalmic pharmaceutical composition comprising trehalose as an effective ingredient and a pharmaceutically-acceptable carrier. The pharmaceutical composition is a safe, long-term continuously-administrable, therapeutic and/or prophylactic agent for the ophthalmologic clinical symptoms and signs in Sjögren syndrome.

Abstract: In a magnetic disk pack comprising a protective casing rotatably accommodating a flexible magnetic disk thereinside and having a pair of aligned windows formed at corresponding positions respectively so that a magnetic head can be inserted into one of the windows to be brought into sliding contact with the magnetic disk under rotation thereby recording and reproducing picture information on and from the magnetic disk, an inclined surface making an angle with the free rotation plane of the magnetic disk is provided on an inner part of the marginal edge of at least one of the windows or on a member resiliently supported at that position thereby inducing a positive pressure or a negative pressure between the rotating magnetic disk and the inclined surface depending on the direction of rotation of the magnetic disk. Such a positive pressure or negative pressure is utilized to urge or attract the magnetic disk toward and onto the magnetic head so as to ensure satisfactory head touch.

Abstract: A memory card ejector has an eject knob to be externally operated and a lock release button. As a memory card is loaded in a card receiving chamber, a lock lever moves to a locking position so that a claw of the lock lever engages with a recess of the memory card to lock the card at a load completion position. In association with the lock lever, a card detecting switch turns off the supply of power to circuit components of an electronic apparatus. When the lock release button is depressed, the lock lever rotates in the counter-clockwise direction to move to a lock release position whereat the card detecting switch is turned off to stop powering the electronic apparatus. As the eject knob is slid, an associated lever together with an eject lever moves so that the end of the eject lever pushes a slide plate toward a card inlet port with a relatively strong force. A hook of the slide plate pushes the front end of the memory card to discmount it from a connector.