Abstract: A door opening and closing device for a vehicle is provided in which a pivoting force of a rotor pivoting in response to a key operation of a cylinder lock is transmitted to a key operating force input member side of a door lock device via a pivot rod, wherein pivoting force transmission means (18) is provided between a pivot rod (17) and the key operating force input member, the pivoting force transmission means (18) being formed by housing within an extension case (103) a driven-side pivot member detachably linked to the key operating force input member in a relatively non-pivotable manner, a drive-side pivot member detachably linked to the other end part of the pivot rod (17) in a relatively non-pivotable manner, and a transmission member transmitting a pivoting force from the drive-side pivot member to the driven-side pivot member, and the extension case (103) is detachably mounted on a casing (25A) of a door lock device (16A) so as to extend from the casing (25A).

Abstract: A door opening and closing device for a vehicle is provided in which a pivoting force of a rotor pivoting in response to a key operation of a cylinder lock is transmitted to a key operating force input member side of a door lock device via a pivot rod, wherein pivoting force transmission means (18) is provided between a pivot rod (17) and the key operating force input member, the pivoting force transmission means (18) being formed by housing within an extension case (103) a driven-side pivot member detachably linked to the key operating force input member in a relatively non-pivotable manner, a drive-side pivot member detachably linked to the other end part of the pivot rod (17) in a relatively non-pivotable manner, and a transmission member transmitting a pivoting force from the drive-side pivot member to the driven-side pivot member, and the extension case (103) is detachably mounted on a casing (25A) of a door lock device (16A) so as to extend from the casing (25A).

Abstract: A recording medium is provided for use with a device for recording data on and reading data from the recording medium using first and second recording and reading methods. A first recording region of the recording medium stores data recorded using the first method and includes blocks having a first data storage capacity. A second recording region of the recording medium stores data recorded using the second method and includes blocks having a second data storage capacity. The first and second recording regions may be, for example, first and second offset helical grooves formed on the recording medium. A device for recording and reading data on the recording medium using the first and second recording methods in accordance with identification data identifying the methods is also provided.

Abstract: A testing apparatus and method for an optical information memory medium such as an optical disk in an optical and noncontact manner, in which a laser light beam generated by a laser transducer is irradiated to an optical head or a reflecting mirror for tracking a groove of the optical information memory medium, and variations corresponding to mechanical characteristics such as a static deflection, a dynamic axial runout, an acceleration of axial runout, a dynamic radial runout, an acceleration of radial runout, an axial tilt angle, a circularity and the like, of the optical information memory are detected from the laser light beam reflected by the optical head or the reflecting mirror by a detector.