Abstract: [Problem] To provide a method for manufacturing a sealing device having high pressure-resistance and high durability.

Abstract: An air flow generation structural body includes a main body disposed in a gap between an attachment target to which a sealing device is attached and a disc-shaped member that is integrated with a shaft member so as to extend from the shaft member toward an outer periphery side. The shaft member passes through a through-hole in the attachment target and is rotatable around an axis. The main body is attached to the shaft member so as to be rotatable together with the shaft member. The air flow generation structural body further includes a plurality of blade portions formed on an outer peripheral surface g of the main body to generate an air current. Each of the blade portions extends along a centrifugal direction perpendicular to the axis x and is parallel to the axis x.

Abstract: A valve stem seal with significantly improved sealing performance while improving workability when fitting the valve stem seal to a valve stem guide. An inner peripheral surface of a fitting section 20B is provided with a plurality of annular seal protrusions which respectively include first inclined surfaces 25a and 26a each having a diameter that increases from a radially inward tip toward a seal section 20A side, and second inclined surfaces 25b and 26b each having a diameter that increases from a radially inward tip toward a side opposite to the seal section 20A. The first seal protrusion 25 which is closest to the seal section 20A is configured so that an inclination of the second inclined surface 25b is smaller than that of the first inclined surface 25a, and the second seal protrusion 26 which is farthest from the seal section 20A is configured so that an inclination of the first inclined surface 26a is smaller than that of the second inclined surface 26b.

Abstract: [Problem] To provide a method for manufacturing a sealing device having high pressure-resistance and high durability.

Abstract: A valve stem seal with significantly improved sealing performance while improving workability when fitting the valve stem seal to a valve stem guide. An inner peripheral surface of a fitting section 20B is provided with a plurality of annular seal protrusions which respectively include first inclined surfaces 25a and 26a each having a diameter that increases from a radially inward tip toward a seal section 20A side, and second inclined surfaces 25b and 26b each having a diameter that increases from a radially inward tip toward a side opposite to the seal section 20A. The first seal protrusion 25 which is closest to the seal section 20A is configured so that an inclination of the second inclined surface 25b is smaller than that of the first inclined surface 25a, and the second seal protrusion 26 which is farthest from the seal section 20A is configured so that an inclination of the first inclined surface 26a is smaller than that of the second inclined surface 26b.

Abstract: A printing device connects to at least one client computer via a network. The printing device includes a storage section that stores image formats for general-purpose image format data. A control section converts page description language (PDL) data sent via the network from the at least one client computer into pixel map format data, converts the pixel map format data into general-purpose image format data based on one of the image formats stored in the storage section, and sends via the network to the at least one client computer the general-purpose image format data together with a source information file containing source information indicating the source of the PDL data. A memory section stores the pixel map format data obtained through the conversion performed by the control section. A printer prints the pixel map format data.

Abstract: A waveguide circuit is provided, in which fixing a metal cover to a waveguide body with screws can prevent radiowave leakage suitably without any application of the conductive adhesive, solder and braze as a material for the radiowave leakage prevention. A metal plate is provided at the end of an aperture of a waveguide body in a radiowave traveling direction and overlaps with the end of a metal cover.

Abstract: A division type waveguide circuit is provided, in which fixing a metal cover to a waveguide body with screws can prevent radiowave leak suitably without any application of the conductive adhesive, solder and braze as a material for the radiowave leak prevention. A radiowave leak preventing plate 8 is provided at the end of an opening area 3 of a waveguide body 2 in a radiowave traveling direction and overlaps with the end of a metal cover 4.

Abstract: Provided is a short-slot type waveguide coupler which can be applied to a transmission line that transmits broadband signals. The waveguide coupler according to the present invention is a short-slot type waveguide couplers wherein it includes a plurality of waveguide units which have a separate port for inputting or outputting signals respectively and a joint unit which combines a plurality of waveguide units and have a specific length in a predetermined direction. Here, at least one waveguide unit extends to a direction that forms a predetermined angle from a longitudinal direction of the joint unit.

Abstract: An apparatus adapted for easily performing polarization switching is disclosed. Within a second waveguide connected to a first waveguide, there is embedded a polarization transformation circuit in the state rotated relative to the second waveguide at an angle set, based on a reflection characteristic indicating a characteristic of a reflection coefficient with respect to a polarization frequency.

Abstract: To prevent falling away of a backup ring (3) from a main lip (12) when uninstalled to a device and prevent inverse assembling, a sealing device is provided with an attaching ring (11), a main lip (12) integrally provided on an inner periphery of the attaching ring, and a backup ring (3) supported to a backup ring support portion (15) formed on an inner periphery of the main lip (12) so as to be positioned at an atmospheric air side than a sliding surface with a shaft, the backup ring support portion (15) and the backup ring (3) are fitted to each other with their fitting surfaces (15a, 31a) which become smaller in diameter relatively toward an outer side in an axial direction, whereby the backup ring (3) is fitted to the backup ring support portion (15) and has directionality in the fitting surfaces (15a, 31a).

Abstract: To provide a printing device capable of automatically sending pixel map format data for printing to an external computer. Source information of PDL data is held, which can be obtained when the PDL data is received from a print requesting client computer. The PDL data is converted into pixel map format data for printing. The pixel map format data for printing is printed and also converted into general-purpose image format data. The general-purpose image format data and the source information are automatically sent to an image transmission destination client computer specified in advance.

Abstract: An apparatus adapted for easily performing polarization switching is disclosed. Within a second waveguide connected to a first waveguide, there is embedded a polarization transformation circuit in the state rotated relative to the second waveguide at an angle set, based on a reflection characteristic indicating a characteristic of a reflection coefficient with respect to a polarization frequency.