Abstract: The portable apparatus comprises a first casing 1 and a second casing 2 slidably connected to each other by a connecting member. The connecting member and one of the casings 2 have opposed surfaces formed with a sliding-contact surface 311 and a sliding-contact receiving surface 211, to slide against each other in a process of shifting from a second opened state to a closed state, to thereby displace from a position in a sliding direction relative to the connecting member in the second opened state to a predetermined relative position in the closed state.

Abstract: In a portable electronic device that has a first casing 1 and a second casing 2 coupled to each other via a coupling member and can be selectively set in a closed state and an open state, at an opposing portion between the coupling member and the second casing 2, there are formed a receiving surface 33 and a slide surface 29 that are to be in a slide contact with each other in a first half of a process where both the casings shift from a most separated state to a closest state in the open state, and at an opposing portion between the first casing 1 and the second casing 2, there are formed a projecting portion 10 and a recessed portion 20 that are to be engaged with each other and disengaged from each other in a latter half of the process.

Abstract: A portable electronic apparatus includes a first casing having a display surface in its surface, a second casing having a display surface in its surface, a coupling mechanism adapted to couple the first casing and the second casing to each other to take at least two states which are a closed state where the display surface in the first casing is covered with a rear surface of the second casing and also the display surface in the second casing is exposed, and an open state where the second casing has been moved with respect to the first casing from the closed state, and the display surfaces in both the casings are exposed in the same plane.

Abstract: A portable electronic apparatus includes a first casing having a first display surface, a second casing having a second display surface, and a coupling mechanism which couples the first casing and the second casing. The first display surface and the second display surface are capable of displaying thereon characters, videos, and images.

Abstract: A portable electronic apparatus includes a first casing having a first display surface, a second casing having a second display surface, and a coupling mechanism that couples the first casing and the second casing to each other.

Abstract: A portable electronic apparatus includes a first casing having a display surface in its surface, a second casing having a display surface in its surface, a coupling mechanism adapted to couple the first casing and the second casing to each other to take at least two states which are a closed state where the display surface in the first casing is covered with a rear surface of the second casing and also the display surface in the second casing is exposed, and an open state where the second casing has been moved with respect to the first casing from the closed state, and the display surfaces in both the casings are exposed in the same plane.

Abstract: A portable electronic apparatus includes a first casing having a display surface in its surface, a second casing having a display surface in its surface, a coupling mechanism adapted to couple the first casing and the second casing to each other to take at least two states which are a closed state where the display surface in the first casing is covered with a rear surface of the second casing and also the display surface in the second casing is exposed, and an open state where the second casing has been moved with respect to the first casing from the closed state, and the display surfaces in both the casings are exposed in the same plane.

Abstract: A brushless motor comprises a stator having a drive coil and a stator core, and a rotor. The stator has a plurality of main teeth and a plurality of auxiliary teeth arranged between the plurality of main teeth. The drive coil comprises a main coil and first and second sub coils. The main coil is wound around the plurality of main teeth in such a way that winding directions on adjacent main teeth become opposite to each other. The first sub coil is wound on every other one of the plurality of auxiliary teeth in such a way as to have a same winding direction. The second sub coil is wound on remaining auxiliary teeth in such a way as to have a same winding direction. The winding directions of the first and second sub coils are the same.

Abstract: A projection welding method which comprises providing in either one of a first member and a second member to be welded a plurality of projections projecting toward the other member, supplying a current between the first and second members to melt the plurality of projections, and welding the first and second members. The plurality of projections are composed of projections having a plurality of kinds with different heights. Furthermore, with reference to the plurality of projections, concave grooves in which a molten product flows are provided.

Abstract: A spindle motor comprising a stationary member, a hub rotatably supported on the stationary member via a pair of bearing members, and a magnetic fluid seal disposed outwardly of at least one of the pair of bearing members. A passageway or conduit hole is provided to conduct between an annular space separated by the stationary member, the magnetic fluid seal means, the rotor and the other of the bearing member and the inside of the motor. Furthermore, a magnetic fluid holder in the magnetic fluid seal is provided.