Abstract: A fluid sterilization apparatus according to an embodiment includes a tubular cover; a tubular portion provided inside the cover; a supply head provided at one end of the tubular portion; a discharge head provided at the other end of the tubular portion; at least one light-emitting element provided in at least one of the supply head and the discharge head and allowed to irradiate an inside of the tubular portion with ultraviolet rays; and a temperature control unit capable of controlling a temperature of a space between the cover and the tubular portion.

Abstract: A high-frequency module includes a mounting board, a first electronic component, a first resin layer, and a first ground electrode. The mounting board has a first principal surface and a second principal surface opposite to each other. The first electronic component is disposed on the first principal surface of the mounting board. The first resin layer is disposed on the first principal surface of the mounting board, and covers at least a part of an outer peripheral surface of the first electronic component. The first ground electrode covers at least a part of the first resin layer. A principal surface of the first electronic component opposite to the mounting board is in contact with the first ground electrode. The mounting board includes a second ground electrode inside the mounting board. The first ground electrode is not in contact with the second ground electrode.

Abstract: Provided is a manufacturing method for a rectangular can according to which it is possible to bring an angle formed by a step surface of a step provided in a rectangular can body and an inner wall surface of the rectangular can body closer to 90 degrees. In a step-forming step, using a die 310 that is provided on an outer wall surface side of a sidewall on which the step is to be formed, a mandrel 410 for sandwiching the sidewall between the mandrel 410 and the die 310 on the bottom side relative to a portion where the step is to be formed in the inner wall surface on which the step is to be formed, and a punch 420 for pressing the side opposite to the bottom side relative to the portion where the step is to be formed in the inner wall surface on which the step is to be formed and compressing the sidewall between the punch 420 and the die 310, the step is formed by performing multiple instances of a pressing operation performed by the punch 420.