Abstract: A magnetic recording medium includes a magnetic layer coated on a support, and a lubricant coated on the magnetic layer and consisting of a compound represented by a formula:H.sub.(3-x) F.sub.x C-C.sub.n F.sub.2n -G-C.sub.m H.sub.(2m+1)(wherein x represents an integer of 0, 1, or 2, each of n and m independently represents an integer of 3 or more, and G represents a divalent functional group.

Abstract: The waterproof structure for a charging connector includes a body cover for opening and closing the opening of a recessed portion formed in a vehicle body, and also includes a waterproof cap for covering a charging connector arranged to project from the bottom surface of the recessed portion. The waterproof cap is journalled openably and closably near a connecting opening formed in the charging connector, and a cam surface is provided around the axis of the journalled portion of the waterproof cap. The waterproof cap can be switchingly moved in its opening and closing directions by an elastic member contactably disposed with the cam surface. When the body cover is closed, then the waterproof cap is pushed by the body cover, thereby closing the connecting opening of the charging connector.

Abstract: The feeder connector consists of feeding-side and receiving side connectors, wherein the feeding-side connector consists of a connector body slidably installed in a front half section of a cylindrical-shape casing, and a handle movably mounted in a rear half section of the casing such that it advances to push the connector body against the receiving-side connector in accordance with a rotational movement of a lever. To the lever there are provided; a primary locking means for locking the lever such that the connector body and the mating connector body are maintained engaged with each other, a secondary locking means for locking the primary locking means in the locked state, which secondary locking means comprising an electromagnetic coil, and a means for releasing the lever from a primarily locked state thereof after the primary locking means is released from said secondary locking means through de-energizing of the electromagnetic coil.