Abstract: The fluid drive unit includes a cylinder communicating with both end portions of a meandering passage formed in the heat transport device. In the cylinder, the piston is slidably arranged being capable of sliding in the axial direction. Fluid is charged in the spaces, which are provided on both sides of the piston, connected to the meandering passage. The solenoid coil, which is provided in the periphery of the side of the cylinder, periodically inverts the magnetic poles and reciprocates the piston in the cylinder. To drive the piston smoothly and reduce the amount of eccentricity, a pair of sliding members are provided at the end portions of the piston. When the fluid in the passage is vibrated by the movement of the piston, the apparent heat conductivity of the heat transport device is enhanced, and heat is quickly diffused from the heating body to the radiating portion.

Abstract: A counter-stream-mode oscillating-flow heat transport apparatus improves heat transport capability by imparting oscillatory displacement to a fluid located near a heat-generating element such that the fluid is directed toward the heat-generating element. Turning portions of serpentine flow paths are disposed to face the heat-generating element. The flow paths are stacked in multiple layers in the direction from the heat-generating element to the flow paths, and a plurality of flow paths are disposed adjacent to the heat-generating element in the direction of fluid oscillation.

Abstract: A linear compressor, comprises a fixed member formed with a hermetically sealed compression chamber, a movable member axially movably received in the compression chamber of the fixed member, a plurality of resilient members each intervening between the fixed member and the movable member, driving means for driving the movable member, damping means for damping vibrations of the fixed member, the damping means including a retaining member fixedly connected to the fixed member and a weight member axially movably supported by the retaining member, first detecting means for detecting a displacement of the movable member, second detecting means for detecting a displacement of the weight member, and controlling means for controlling the driving means to have the movable member perform a reciprocally linear motion to ensure that the vibrations of the fixed member are damped by the damping means.

Abstract: A linear compressor, comprises a fixed member formed with a hermetically sealed compression chamber, a movable member axially movably received in the compression chamber of the fixed member, a plurality of resilient members each intervening between the fixed member and the movable member, driving means for driving the movable member, damping means for damping vibrations of the fixed member, the damping means including a retaining member fixedly connected to the fixed member and a weight member axially movably supported by the retaining member, first detecting means for detecting a displacement of the movable member, second detecting means for detecting a displacement of the weight member, and controlling means for controlling the driving means to have the movable member perform a reciprocally linear motion to ensure that the vibrations of the fixed member are damped by the damping means.

Abstract: A semiconductor sensor having a thin-film structure body, in which thin-film structure is prevented from bending due to the internal stress distribution in the thickness direction, is disclosed. A silicon-oxide film is formed as a sacrificial layer on a silicon substrate, and a polycrystalline-silicon thin film is formed on the silicon-oxide film. Thereafter, phosphorus (P) is ion-implanted in the surface of the polycrystalline-silicon thin film, and thereby the surface state of the polycrystalline-silicon thin film is modified. A portion of distribution of stress existing in the thickness direction of the polycrystalline-silicon thin film is changed by this modification, and stress distribution is adjusted. By removal of the silicon-oxide film, a movable member of the polycrystalline-silicon thin film is disposed above the silicon substrate with a gap interposed therebetween.

Abstract: A semiconductor acceleration sensor according to the present invention performs acceleration detection by means of detecting increase or decrease in electrical current flowing between fixed electrodes formed on a semiconductor substrate taking a movable section in a movable state supported on the semiconductor substrate as a gate electrode. Two transistor structures are utilized in this detection. Current between fixed electrodes in one transistor structure increases when the movable section is subjected to acceleration and is displaced. At that time, current between fixed electrodes in the other transistor structure decreases. These two transistor structures are disposed proximately. By means of this proximate disposition, fluctuations in characteristics of both transistors are reduced, and by means of acceleration detection by differential type, temperature characteristics of the two transistors can be canceled favorably.

Abstract: The present invention is directed to a display cabinet provided with a compartment. The compartment is divided into at least two spaces by a shelf for storing and displaying merchandise. The shelf is provided with a frame element which is slidably supported thereon. The frame element is supported on the shelf with a gap therebetween and determines the storage space for merchandise when the frame is placed in its normal position. When the frame element is pulled forward, the merchandise on the shelf is gathered by the frame and pushed to the front of the shelf for easy access. This also forms a space for loading additional merchandise in the back of the shelf. A stopper element is disposed at the front of the shelf to prevent merchandise from falling off the shelf when the frame element is pulled forward.

Abstract: A display case is provided with a compartment which stores merchandise for display and is divided into at least two chambers by a partition plate to enable storing different types of merchandise, each of which types is to be held under a predetermined temperature. These chambers communicate with one another through a communication gap which is defined between the partition plate and the window of the case and the opening and closing of the gap is controlled by a sealing mechanism to vary the temperature conditions within each chamber. The sealing mechanism includes a sealing element which is movably engaged with the partition plate and a retaining element is fastened on the partition plate to hold the selected position of the sealing element. Thus, the opening and closing control of the gap is easily operated without interfering with the visibility of the merchandise.

Abstract: A process for producing an aromatic amine comprises heating an aromatic sulfonate and a metal amide in liquid ammonia in a closed reactor at a temperature of at least 40.degree. C to produce a metal arylamide and reacting the resultant metal arylamide with water or lower aliphatic alcohol to produce an aromatic amine.