Abstract: A semiconductor device (10) according to one aspect of the present disclosure includes: a driving section (40) that drives an object to be driven; an abnormality detecting circuit (30), which is one example of an instruction circuit that outputs an instruction signal to the driving section (40); and a light amount detecting section (20) that detects an amount of incident light and invalidates the instruction signal output from the abnormality detecting circuit (30) in accordance with the amount of incident light.

Abstract: A holding frame for an electronic device that is to be inserted and extracted into and from a pair of grooves formed in a chassis so as to face each other, the holding frame includes a pair of plates that are parallel to each other and that form portions of the holding frame, the portions extending along the grooves, three protrusions that are arranged along the grooves and that protrude from the plates toward the grooves, and two support portions that are arranged at portions of the holding frame each of which corresponds to a center portion between a corresponding two of the three protrusions, the two support portions supporting the electronic device between the plates and the electronic device.

Abstract: A holding frame for an electronic device that is to be inserted and extracted into and from a pair of grooves formed in a chassis so as to face each other, the holding frame includes a pair of plates that are parallel to each other and that form portions of the holding frame, the portions extending along the grooves, three protrusions that are arranged along the grooves and that protrude from the plates toward the grooves, and two support portions that are arranged at portions of the holding frame each of which corresponds to a center portion between a corresponding two of the three protrusions, the two support portions supporting the electronic device between the plates and the electronic device.

Abstract: A storage apparatus of an electronic device, the storage apparatus includes: a plurality of chassis each configured to store a plurality of electronic devices, at an interval in which at least one electronic device is capable of being disposed; and a fixing portion configured to fix the plurality of chassis, wherein at least one of the plurality of chassis is formed such that in the interval of the electronic devices stored in the at least one of the plurality of chassis, at least one of the electronic devices stored in another chassis among the plurality of chassis is disposed.

Abstract: An electromagnetic wave shield structure includes: a substrate on which an electromagnetic wave emission source is mounted; a frame body provided over the substrate and including a conductor which surrounds an outer periphery of the electromagnetic wave emission source and receives a specific potential from the substrate; and a lid body, including a first insulator portion including a first surface facing the electromagnetic wave emission source and a second surface opposite to the first surface which are covered by a first conductive film electrically coupled with the frame body, configured to close an opening end of the frame body.

Abstract: A substrate is disclosed, which can remove heat from a stacked body of semiconductor elements through a phase change of a coolant. The substrate of the application includes: a stacked body of semiconductor elements; a first channel forming a path, receiving circulation of a first coolant, in a surface of the stacked body; and a second channel forming a path, receiving circulation of a second coolant having a boiling point higher than the boiling point of the first coolant, in an inter-layer portion of the stacked body.

Abstract: A substrate is disclosed, which can remove heat from a stacked body of semiconductor elements through a phase change of a coolant. The substrate of the application includes: a stacked body of semiconductor elements; a first channel forming a path, receiving circulation of a first coolant, in a surface of the stacked body; and a second channel forming a path, receiving circulation of a second coolant having a boiling point higher than the boiling point of the first coolant, in an inter-layer portion of the stacked body.

Abstract: An electronic apparatus includes: a casing; a conductive film disposed on an inner surface of the casing, the conductive film having a recess in a surface thereof; a circuit board accommodated in the casing; a semiconductor device disposed on the circuit board; and a conductive frame fixed around the semiconductor device on the circuit board, the conductive frame being fitted in the recess.

Abstract: A storage apparatus of an electronic device, the storage apparatus includes: a plurality of chassis each configured to store a plurality of electronic devices, at an interval in which at least one electronic device is capable of being disposed; and a fixing portion configured to fix the plurality of chassis, wherein at least one of the plurality of chassis is formed such that in the interval of the electronic devices stored in the at least one of the plurality of chassis, at least one of the electronic devices stored in another chassis among the plurality of chassis is disposed.

Abstract: A heatsink includes, a fin base that receives heat from a heat generating part; a cover that cooperates with the fin base to form a flow path of coolant along which the coolant flows; a plurality of fins formed on the fin base and partitioning the flow path into a plurality of small flow paths; and an adjustment plate vertically disposed between the fin base and the cover, and perpendicularly disposed with respect to the plurality of fins, wherein the adjustment plate including different height potions.

Abstract: A gear having a tooth form shape including, on a tooth root side of a tooth, a first curved surface connected to a tooth face of an involute tooth form and convex in a direction opposite to the tooth face, a flat surface connected to the first curved surface, and a second curved surface connected to the flat surface and convex in the same direction as the first curved surface. In a normal plane, the shape of the flat surface is a tangent in contact with a tip side end of a trajectory of motion of a tooth of a meshing partner gear and intersecting with a tooth form center line at a 30° angle, the shape of the first curved surface is circular arcs in contact with the tangent, and, the shape of the second curved surface is circular arcs in contact with the tooth face and the tangent.

Abstract: An electronic apparatus includes: a casing; a conductive film disposed on an inner surface of the casing, the conductive film having a recess in a surface thereof; a circuit board accommodated in the casing; a semiconductor device disposed on the circuit board; and a conductive frame fixed around the semiconductor device on the circuit board, the conductive frame being fitted in the recess.

Abstract: A gear having a tooth form shape including, on a tooth root side of a tooth, a first curved surface connected to a tooth face of an involute tooth form and convex in a direction opposite to the tooth face, a flat surface connected to the first curved surface, and a second curved surface connected to the flat surface and convex in the same direction as the first curved surface. In a normal plane, the shape of the flat surface is a tangent in contact with a tip side end of a trajectory of motion of a tooth of a meshing partner gear and intersecting with a tooth form center line at a 30° angle, the shape of the first curved surface is circular arcs in contact with the tangent, and, the shape of the second curved surface is circular arcs in contact with the tooth face and the tangent.

Abstract: A gear having a tooth form shape includes, on a tooth root side of a tooth, (1) a first curved surface connected to a tooth face of an involute tooth form and convex in a direction opposite to the tooth face, (2) a flat surface connected to the first curved surface, and (3) a second curved surface connected to the flat surface and convex in the same direction as the first curved surface. The shape of the flat surface in a normal plane is a tangent in contact with a tip side end of a trajectory of motion B of a tooth of a meshing partner gear and intersecting with a tooth form center line at a 30° angle. The shapes of the first and the second curved surfaces in a normal plane are circular arcs.

Abstract: A gear is provided having a tooth form shape in which stress concentration on a tooth root side including a bottom does not easily occur and strength of the tooth can be enhanced. On a tooth root side of a tooth 2, (1) a first curved surface 4 smoothly connected to a tooth face 3 of an involute tooth form and convex in a direction opposite to the tooth face 3, (2) a flat surface 5 connected to the first curved surface, and (3) a second curved surface 6 smoothly connected to the flat surface 5 and convex in the same direction as the first curved surface are formed. The shape of the flat surface 5 in a normal plane is a tangent in contact with a tip side end of a trajectory of motion B of a tooth of a meshing partner gear and intersecting with a tooth form center line 7 at a 30° angle when the end of the flat surface 5 on the first curved surface 4 side is extended.