Abstract: To provide a high quality SAW device with enhanced productivity, wherein an outer face of a SAW chip mounted on a mounting substrate is covered with a heat-softened resin sheet and resin is filled on the SAW chip to form an airtight space below an IDT in the SAW device.

Abstract: An intermittently-moving-head or simulated-moving-bed chromatographic separator capable of stably maintaining purities of separated components, wherein a loop path (16) is formed by connecting four or more columns (14) to one another. Feed liquid material containing component-A and component-C and liquid eluent are injected into the loop path (16), followed by circulating the same in the loop path (16). A density detector (54) is disposed in the loop path (16) at a position adjacent to a component-A extraction valve (41), to detect the component density in the loop path (16) during the circulation step. When the density of the components reaches a reference density or higher, it is judged that component-A and component-C of the feed liquid material are separated from each other and the process moves from the circulation step to a next component extraction step.

Abstract: A photoelectric sensor unit comprises a light emitting section for emitting light to a detection area, a light receiving section for receiving light from the detection area, and a signal processing section for amplifying and processing an electric signal corresponding to the light reception amount output from the light receiving section. A four-element, high-brightness type LED is used as a light emitting element forming a part of the light emitting section and a drive circuit comprises an automatic control circuit for reducing fluctuation in the light emission amount relative to change in the ambient temperature of the LED.

Abstract: In a ceramic circuit board having a ceramic substrate and a metal circuit plate bonded to one surface of the ceramic substrate, assuming that the warpage of the ceramic circuit board is a difference in height between the center and edge of the metal circuit plate and is positive (+) when the circuit board warps so as to be concave on the side of the metal circuit plate, the warpage of the ceramic circuit board is in the range of from −0.1 mm to +0.3 mm when the ceramic circuit board is heated to 350° C., and in the range of from +0.05 mm to +0.6 mm when the temperature of the ceramic circuit board is returned to a room temperature after the ceramic circuit board is heated to 350° C. The initial warpage of the ceramic circuit board is in the range of from +0.05 mm to +0.6 mm.

Abstract: In a ceramic circuit board having a ceramic substrate and a metal circuit plate bonded to one surface of the ceramic substrate, assuming that the warpage of the ceramic circuit board is a difference in height between the center and edge of the metal circuit plate and is positive (+) when the circuit board warps so as to be concave on the side of the metal circuit plate, the warpage of the ceramic circuit board is in the range of from −0.1 mm to +0.3 mm when the ceramic circuit board is heated to 350° C., and in the range of from +0.05 mm to +0.6 mm when the temperature of the ceramic circuit board is returned to a room temperature after the ceramic circuit board is heated to 350° C. The initial warpage of the ceramic circuit board is in the range of from +0.05 mm to +0.6 mm.

Abstract: A photoelectric sensor unit comprises a light emitting section for emitting light to a detection area, a light receiving section for receiving light from the detection area, and a signal processing section for amplifying and processing an electric signal corresponding to the light reception amount output from the light receiving section. A four-element, high-brightness type LED is used as a light emitting element forming a part of the light emitting section and a drive circuit comprises an automatic control circuit for reducing fluctuation in the light emission amount relative to change in the ambient temperature of the LED.

Abstract: A chromatographic separator allows a feed liquid material consisting of two or more than two components and a liquid eluent to circulate within an endless circular path 16, wherein columns 14 are coupled to one another, to separate the feed liquid material into two components. The selector valves 23 and 33 are switched to allow pumps 20 and 30 to serve to circulate the fluid through the circular path 16 and to inject each liquid from the tanks 25 and 35. Furthermore, an ordinary ON/OFF valve is used as discharge valves 41 and 51 for each of the liquids and thus the pressure specification required for the circular path 16 is reduced.

Abstract: The rotary member (12) of the rotary valve (10) includes columns (separation vessels) (14) coupled to each other to form an endless circular path (16) and rotates to separate components A and C from a feed liquid material containing two or more components. A concentration sensor (17) is connected to a tube (141) that connects between columns (14) and is mounted on the rotary member (12) rotatably in unison with the columns (14) to detect the concentration of the component A flowing in the circular path (16). Based on the detected result of the concentration sensor (17), fine tuning of the timing of start and the time length of each step can be effected, thereby providing an improved separation performance for the chromatographic separator.

Abstract: In a longitudinally coupled multi-mode surface acoustic wave filter, for the purpose of setting a stop band width of reflectors to a proper width according to a required filter, since a line occupation rate of the reflectors has been made smaller than a line occupation rate of an IDT electrode, and respective periods of the reflector and the IDT electrode are set properly such that the stop band width of the reflector and the band width of the longitudinally coupled multi-mode surface acoustic wave filter have been approximately equal to each other, means for broadening the band of the longitudinally coupled multi-mode SAW filter can be obtained for a broad-band RF filter of a portable telephone used in a new system.

Abstract: A press plate has a frame portion in contact with the top surface of a liquid crystal display panel, a plurality of legs having engagement hook at the distal end thereof, and a first rib and rubber connector holding portions which hold a rubber connector therebetween in contact with the back surface of the frame portion. When the respective legs are inserted into fixing holes in a circuit board while the liquid crystal display panel is in contact with the back face of the frame portion and the rubber connector is inserted between a first rib and the rubber connector holding portions, the engagement hooks are caught by the fixing holes in the circuit board while the rubber connector is collapsed. Thereby, the liquid crystal display panel is fixed to the circuit board, by which the falling and shift of position of the rubber connector can be prevented.

Abstract: A cutting device cuts a flat tube in such a manner that a locus connecting each point where a blade tip of a blade portion of the cutting device is firstly introduced into the flat tube passes through a base portion of a frontmost side protrusion portion. Therefore, the bending moment generated due to a cutting force of the cutting device is decreased to prevent defective cutting.

Abstract: A refining method for decarburization by blowing by using a top-blown lance having a gas-supplying pipe of at least one independent line, wherein the absolute secondary pressure P.sub.0 of nozzle of the lance of at least one line is maintained to be not smaller than 0.7 times but not larger than 2.5 times of the properly expanding absolute secondary pressure P.sub.0p of nozzle of the lance, and the oxygen supplying rate is so changed that a maximum value of the absolute secondary pressure of the nozzle is not smaller than 1.1 times of a minimum value thereof. The top-blown lance used here has not less than 2 but not more than 10 shielding portions arranged in the openings at the end of the lance in a concentric polygonal shape or a concentric circular shape in cross section, has a ratio B/h of the length h (mm) of the short side to the length B (mm) of the long side of the openings separated by the shielding portions of from 10 to 225, has slit-like nozzles of which the ratio (B.multidot.h)/R is from 0.

Abstract: An edge prepared with a groove face leaving a vertical root face is combined with another edge prepared with an opposing groove face, a step for receiving a bottom of that edge to be welded thereto, and another step defined by a vertical abutment face for abutting on the root face and a horizontal flat surface, so that a weld groove is continuously defined by the groove faces and the flat surface.

Abstract: An aperture size changing apparatus for a camera includes a camera body, a photographing lens to be mounted to the camera body, and a pair of light intercepting blades for defining an aperture through which light is incident on a recording medium and which are movably positioned on a predetermined portion in the camera body. An aperture size changing device moves the light intercepting blades between a standard aperture size position and a panoramic aperture size position, and a predetermined member, is independent of, and is assembled into the camera body are provided. The predetermined member is arranged to be functionally associated with the camera body and the photographing lens. The aperture size changing device is mounted on the predetermined member so that the aperture size changing device is substantially within an orthogonal projection of an entire perimeter of the pair of light intercepting blades.

Abstract: A liquid level indicator has a transparent vessel for retaining hot water therein and a thermo-sensitive tape (thermo-tape) attached at a side wall of the vessel with the sensing side of the thermo-tape facing the side wall of the vessel. The thermo-tape first exhibits black, then turns white after the hot water is poured into the vessel. When the thermo-tape is pressed against a partially filled liquid container, the thermo-tape turns black at one side of a boundary and turns white at the other side of the boundary that defines the liquid/gas interface in the container. This occurs because the liquid in the container cools the thermo-tape more rapidly than the gas in the container does. The boundary is observed through the walls of the transparent vessel and the hot water to detect the liquid level within the container.

Abstract: According to the present invention, a roll forming method includes a first roll forming process for forming a trapezoidal projecting portion at a center portion, a second roll forming process for gradually narrowing an upper side of the trapezoidal projecting portion to form a turnup projecting portion, a third roll forming process for forming perpendicularly folded portions at both sides, and a fourth roll forming process for folding a middle portion between the perpendicularly folded portion and the turnup projecting portion in a semi-circular shape. In this way, it is possible to form a turnup projecting portion, insides of which are closely contacted to each other with a curvature which is larger than the conventional curvature, with high speed.

Abstract: The present invention provides a process for efficiently dephosphorizing, dephosphorizing and decarbonizing, or desulfurizing, dephosphorizing and decarbonizing a hot metal in a converter. The amount of flux to be charged and the amount of bottom-blown gas are adjusted so that the bottom-blowing agitation power and the CaO/SiO.sub.2 ratio subsequent to the treatment become at least 0.1 kW/ton and from 0.7 to 2.5, respectively and the hot metal temperature at the treatment end point becomes from 1,200.degree. to 1,450.degree. C. Furthermore, the operation of the process is controlled so that the sum of a T.Fe concentration and a MnO concentration in the slag subsequent to the treatment becomes from 10 to 35% by weight by adjusting the top-blown oxygen feed rate, the flow rate of bottom-blown gas or the top-blowing lance height.

Abstract: A strobe device is provided, including a light source and a reflector which reflects part of the light emitted from the light source. The reflector is provided with a reflecting surface that is shaped to form virtual images of the light source behind the reflecting surface.

Abstract: In a zoom finder of a zoom lens camera, a movable variable power lens is supported to move in an optical axis direction and is moved to predetermined positions by a cam member which is driven in association with movement of the zoom lens. The cam member is provided with a groove or a projection at a reference position. The cam member is held in the reference position by a holding member which is engaged by the groove or the projection before assembling the finder to the zoom lens camera.

Abstract: An apparatus for eliminating a backlash in a zoom finder of a zoom lens camera. A cam member is provided with a cam surface that is engaged with movable variable power lens of the finder. The cam member is driven in association with the zoom-photographing lens, and the cam surface is provided with a zoom section as well as a transfer section in which no movement of the movable variable power lens occurs. A backlash eliminating cam surface is provided separately from the cam surface on the cam member for the movable variable power lens. An oblique cam surface is provided on the backlash eliminating cam surface and is inclined with respect to a plane perpendicular to the optical axis of the movable variable power lens. The oblique cam surface is formed in a section corresponding to the zoom section side of the transfer section of the cam surface. A backlash eliminating member is biased and pressed against the oblique cam surface to exert a drive force on the cam member.