Abstract: A liquid crystal display panel comprising a liquid crystal cell with liquid crystals sealed therein, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, a first polarizing film disposed on the visible side of the liquid crystal cell, a second polarizing film disposed on the opposite side of the liquid crystal cell from the visible side, and a light absorbing film disposed on the opposite side of the second polarizing film from the visible side. The first polarizing film is a reflection-type polarizing film reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof, and the second polarizing film is an absorption-type polarizing film or color polarizing film each absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof. A transflective reflector and/or a color filter may preferably be disposed between the second polarizing film and a light source.

Abstract: An insulating layer is formed on a semiconductor substrate, and a first resist layer having a first resist opening portion is formed on the insulating layer. Then, the insulating layer is etched thought the opening portion to expose the substrate. After removing the first resist layer, a second resist layer having second resist opening portions are formed. One of the second resist opening portions is provided to expose the substrate, and a recess is formed in the substrate through the opening portion. Further, the insulating layer exposed from the other of the second resist opening portions is removed. Then, an electrode member for gate, source, and drain electrodes is deposited on the substrate. As a result, variations in intervals between the gate and drain electrodes and between the gate and source electrodes can be reduced.

Abstract: A semiconductor device includes a semi-insulating substrate. A channel layer is formed on the semi-insulating substrate. An electron supply layer is formed on the semi-insulating substrate for generating a two-dimensional electron gas. The electron supply layer includes a doped superlattice layer. The superlattice layer includes layers of In.sub.X Al.sub.1-X As and layers of In.sub.Y Al.sub.1-Y As which alternate with each other, where 0.ltoreq.X.ltoreq.1.0 and 0.ltoreq.Y.ltoreq.1.0, and X differs from Y.

Abstract: An amplifier circuit can operate stably without increasing a consumed current even when a direct current amplification of a transistor is fluctuated due to tolerance in manufacturing process. The amplifier circuit has a first transistor having an emitter grounded. A second transistor has an emitter connected to a collector of said first transistor and a collector connected to a power source via a load and a first bias resistor circuit network. A third transistor constructs a current mirror circuit together with said first transistor and receives a bias current via a second bias resistor circuit network. The second bias resistor circuit network has a power source side terminal connected to a junction point between said load and said first bias resistor circuit network.

Abstract: An equivalent inductance circuit having a common input/output terminal comprises a bipolar transistor having a base grounded, an input/output terminal connected to an emitter of the bipolar transistor, and a feedback path comprising a capacitance having one end connected to a collector of the bipolar transistor and the other end connected to the emitter.

Abstract: A sealed storage battery has a sealing assembly including a hollow rivet mounted to a cover plate via a gasket and a lead piece connecting a positive collector to the hollow rivet. Mounting the hollow rivet to the cover plate is achieved by pressurizing a distal end portion of a hollow shaft of the hollow rivet with a punch having a conical tip end portion so as to caulk the distal end portion of the hollow rivet by enlarging the distal end portion diametrically outward. Tightness between the opposing surfaces of the members among the cover plate, hollow rivet, gasket and lead piece can be enhanced, providing excellent liquid leakage resistance in the battery. A valve body of a safety valve is housed in a positive terminal welded to the head of the hollow rivet.

Abstract: A sealed storage battery has a sealing assembly including a hollow rivet mounted to a cover plate via a gasket and a lead piece connecting a positive collector to the hollow rivet. Mounting the hollow rivet to the cover plate is achieved by pressurizing a distal end portion of a hollow shaft of the hollow rivet with a punch having a conical tip end portion so as to caulk the distal end portion of the hollow rivet by enlarging the distal end portion diametrically outward. Tightness between the opposing surfaces of the members among the cover plate, hollow rivet, gasket and lead piece can be enhanced, providing excellent liquid leakage resistance in the battery. A valve body of a safety valve is housed in a positive terminal welded to the head of the hollow rivet.