Abstract: A cooling device includes a liquid cooling jacket and a heat dissipator including a plate-shaped base portion extending in a first direction along a direction in which a refrigerant flows and in a second direction perpendicular or substantially perpendicular to the first direction and has a thickness in a third direction, a fin protruding from the base portion toward, a top plate portion provided at the fin, and a bent portion bent toward the one side in the third direction at an end on one side in the first direction of the top plate portion, with the one side in the first direction being a downstream side. Between the liquid cooling jacket and the top plate portion, a gap in the third direction is provided, and the bent portion opposes the liquid cooling jacket.

Abstract: A liquid cooling jacket includes, with a direction along a direction in which a refrigerant flows being defined as a first direction, and a direction perpendicular or substantially perpendicular to the first direction being defined as a second direction, a refrigerant flow path having a width in the second direction and including a heat radiator on one side in the third direction, a bottom surface portion located on the other side of the refrigerant flow path in the third direction, and protrusions protruding from the bottom surface portion toward one side in the third direction and arranged in the first direction. With one side in the first direction being defined as a downstream side, the protrusions include a convex portion extending in the second direction and protruding toward the other side in the first direction.

Abstract: A cooling device includes a heat dissipator and a liquid cooling jacket. The heat dissipator includes a plate-shaped base portion that extends in a first direction along a direction where a refrigerant flows and in a second direction orthogonal to the first direction and has a thickness in a third direction, a fin that protrudes from the base portion to one side in the third direction, and a top plate portion provided to an end of the fin. The liquid cooling jacket includes a top surface located on one side of the top plate portion with a gap between the top surface and the top plate portion. Top surface recesses recessed from the top surface toward one side and located side by side in the first direction.

Abstract: A transmission device that wirelessly communicates with a reception device includes an FSK modulation unit that performs frequency shift keying modulation on an input information bit sequence to generate a frequency shift keying symbol, a direct-sequence spreading unit that spreads the frequency shift keying symbol by direct-sequence spreading using a chirp sequence, and an FSK carrier spacing control unit that controls a signal to be transmitted to the reception device in such a manner as to prevent a delayed-wave component in multipath propagation from appearing in a frequency shift keying candidate carrier in one symbol of two consecutive symbols, in a frequency spectrum of a signal obtained by despreading in the reception device.

Abstract: An application method of applying a liquid agent includes determining any one of positions of the liquid agent at a halfway part between a first end portion and a second end portion in a state in which an application is completed as each of an application start position and an application end position. The method includes applying the liquid agent from the application start position to the first end portion. The method includes turning back from the first end portion and applying the liquid agent to the second end portion, including superimposing, in a height direction, the liquid agent on previously applied liquid agent. The method includes turning back from the second end portion and applying the liquid agent to the application end position, including superimposing, in the height direction, the liquid agent on previously applied liquid agent.

Abstract: A liquid cooling jacket includes a refrigerant flow path including a heat radiating portion on one side, a bottom surface located on the other side of the refrigerant flow path, and a protrusion protruding from the bottom surface toward one side. A first inclined portion is provided on the one side which is a downstream side of the protrusion. A first-direction length of the first inclined portion is longer than a height of the protrusion at a first-direction other end of the first inclined portion.

Abstract: A wireless communication device includes: a plurality of transmitting antennas; a modulation unit that generates a transmission signal transmitted from each of the transmitting antennas by performing frequency-shift keying on a carrier wave on the basis of transmission data; and a mapping unit that is provided in a preceding stage of the modulation unit and allocates carrier waves different from each other to the plurality of transmitting antennas such that a plurality of transmission signals each transmitted from one of the plurality of transmitting antennas are orthogonal to each other.

Abstract: A heat dissipator includes a first top plate at one side end of a third direction at a first fin(s). A second top plate is at one side end of a third direction at a second fin(s). The second fin(s) includes an opening open to one side in the third direction and located on the other side in the first direction relative to the second top plate. A liquid-cooled jacket includes a top surface that can oppose the first top plate and the second top plate in the third direction. A first gap between the top surface and the first top plate and a second gap between the top surface and the second top plate are narrower toward one side in the first direction.

Abstract: An application method of applying a liquid agent includes determining any one of positions of the liquid agent at a halfway part between a first end portion and a second end portion in a state in which an application is completed as each of an application start position and an application end position. The method includes applying the liquid agent from the application start position to the first end portion. The method includes turning back from the first end portion and applying the liquid agent to the second end portion, including superimposing, in a height direction, the liquid agent on previously applied liquid agent. The method includes turning back from the second end portion and applying the liquid agent to the application end position, including superimposing, in the height direction, the liquid agent on previously applied liquid agent.

Abstract: An application method of applying a liquid agent includes determining any one of positions of the liquid agent at a halfway part between a first end portion and a second end portion in a state in which an application is completed as each of an application start position and an application end position. The method includes applying the liquid agent from the application start position to the first end portion. The method includes turning back from the first end portion and applying the liquid agent to the second end portion, including superimposing, in a height direction, the liquid agent on previously applied liquid agent. The method includes turning back from the second end portion and applying the liquid agent to the application end position, including superimposing, in the height direction, the liquid agent on previously applied liquid agent.

Abstract: A wireless communication device includes: a plurality of transmitting antennas; a modulation unit that generates a transmission signal transmitted from each of the transmitting antennas by performing frequency-shift keying on a carrier wave on the basis of transmission data; and a mapping unit that is provided in a preceding stage of the modulation unit and allocates carrier waves different from each other to the plurality of transmitting antennas such that a plurality of transmission signals each transmitted from one of the plurality of transmitting antennas are orthogonal to each other.

Abstract: An application method of applying a liquid agent includes determining any one of positions of the liquid agent at a halfway part between a first end portion and a second end portion in a state in which an application is completed as each of an application start position and an application end position. The method includes applying the liquid agent from the application start position to the first end portion. The method includes turning back from the first end portion and applying the liquid agent to the second end portion, including superimposing, in a height direction, the liquid agent on previously applied liquid agent. The method includes turning back from the second end portion and applying the liquid agent to the application end position, including superimposing, in the height direction, the liquid agent on previously applied liquid agent.