Abstract: A main object of the present disclosure is to provide an active material wherein an expansion upon intercalation of a metal ion such as a Li ion is suppressed. The present disclosure achieves the object by providing an active material comprising a silicon clathrate type crystal phase, and the active material includes a Na element, a Si element and a M element that is a metal element with an ion radius larger than the Si element, and a proportion of the M element to a total of the Si element and the M element is 0.1 atm % or more and 5 atm % or less.

Abstract: A blade attachment tool includes a first support member supported by a pressing support portion supporting a blade formed of an elastic member configured to wipe/scrape liquid/solids spreading on an abutment surface by being pressed against the abutment surface and being long in one direction such that the blade is pressed against the abutment surface with a predetermined pressing force, a second support member supported to swing about a swing shaft extending in a longitudinal direction of the blade with respect to the first support member and configured such that a base end side of the blade is attached thereto, and an energizing member configured to apply a reaction force to a friction force that causes the second support member to swing about the swing shaft with respect to the first support member when the blade is pressed against the abutment surface to slide relatively to the abutment surface.

Abstract: A blade attachment tool includes a first support member supported by a pressing support portion supporting a blade formed of an elastic member configured to wipe/scrape liquid/solids spreading on an abutment surface by being pressed against the abutment surface and being long in one direction such that the blade is pressed against the abutment surface with a predetermined pressing force, a second support member supported to swing about a swing shaft extending in a longitudinal direction of the blade with respect to the first support member and configured such that a base end side of the blade is attached thereto, and an energizing member configured to apply a reaction force to a friction force that causes the second support member to swing about the swing shaft with respect to the first support member when the blade is pressed against the abutment surface to slide relatively to the abutment surface.

Abstract: In a waterdrop removing apparatus for a vehicle, a blower is attached to a part of high rigidity within a door body to reduce vibration and noise. Air discharged from the blower is guided to a door mirror by a nozzle to blow away waterdrops wetting a surface of the door mirror. The blower is attached to an attachment bracket which is fixed to a door hinge together with a front end wall of the door body interposed between the door hinge and the attachment bracket.

Abstract: A water droplet removing system for a vehicle provided with door mirror assemblies each having a door mirror base attached to a door body, and a mirror unit guides air discharged by a blower installed in a door body of the automobile to at least either the surface of a mirror included in the mirror unit or the outer surface of a side window to blow off water droplets wetting the surface of the mirror or the outer surface of the side window. The blower is installed in a dead space defined in front of a guide rail placed in the door body to guide the front edge of the side window for vertical movement in the door body so that the interference between the blower and parts arranged within the door body including the side window can be avoided.