Abstract: According to one embodiment, an electric motor includes a rotor supporter which is movable in an axial direction of a central axis of a rotor shaft with respect to a case, and a support member receiver attached to at least one of the rotor shaft and the rotor core so that the rotor supporter is able to come into contact therewith and be separated therefrom, and able to fix the rotor shaft and the rotor core to the rotor supporter when the rotor supporter is in contact therewith.

Abstract: According to one embodiment, an electric motor includes a rotor supporter which is movable in an axial direction of a central axis of a rotor shaft with respect to a case, and a support member receiver attached to at least one of the rotor shaft and the rotor core so that the rotor supporter is able to come into contact therewith and be separated therefrom, and able to fix the rotor shaft and the rotor core to the rotor supporter when the rotor supporter is in contact therewith.

Abstract: A display media particle used for an information display panel having display media constituted of particles sealed between two substrates, at least one of which is transparent, for displaying information by moving the display media, is formed of a mother particle 32 made from materials including a base resin having child particles 33 added to a surface thereof. The base resin is a thermoplastic resin having a viscosity of no more than 1000 Pa·s at 260° C. and a shear rate at 122 s?1, and a heatproof temperature at no less than 430° C. Since optimal conditions of the viscosity and the heatproof temperature are specified, it is possible to round the resin effectively by a heat treatment for spheronization as a post-treatment after manufacturing.

Abstract: A display media particle used for an information display panel having display media constituted of particles sealed between two substrates, at least one of which is transparent, for displaying information by moving the display media, is formed of a mother particle 32 made from materials including a base resin having child particles 33 added to a surface thereof. The base resin is a thermoplastic resin having a viscosity of no more than 1000 Pa·s at 260° C. and a shear rate at 122 s?1, and a heatproof temperature at no less than 430° C. Since optimal conditions of the viscosity and the heatproof temperature are specified, it is possible to round the resin effectively by a heat treatment for spheronization as a post-treatment after manufacturing.