Abstract: A lead storage battery comprising a positive electrode 11 and a negative electrode 12. The negative electrode 12 contains a negative electrode active substance to which a negative electrode additive is added. The negative electrode additive is a phenol.multidot.aminobenzene sulfonic acid.multidot.formaldehyde condensate. The above-structured lead storage battery provides a prolonged cycle life and excellent charging performance.

Abstract: A Ceramic Bonding Copper (CBC) substrate used in semiconductor modules includes a ceramic plate having foil-shaped copper plates bonded to the ceramic plate by the direct copper bonding method. A circuit pattern is formed on one of the copper plates. The ceramic plate is fabricated by sintering at high temperature an alumina powder compact containing zirconia and one or more of the following additives: yttria, calcia, magnesia, and ceria. The flexural strength and the thermal conductivity of the alumnina ceramic plate of the invention are remarkably improved, facilitating a reduction in the thickness of the ceramic plate. The reduction in thickness of the CBC substrate further improves the ability of the semiconductor device to radiate heat and therefore increases the current carrying capability of the semiconductor device.

Abstract: A lead-acid battery includes cell rooms in which cells are stored and a partition wall separating the cell rooms. The cell rooms include an electrode plate assembly having electrode plates facing each other with a separator sandwiched between the electrode plates, and positive and negative straps extending in a laminated direction of the electrode plates in a bar shape. The positive and negative straps are connected in parallel with lug portions of the electrode plates. An intercell electrically connecting member having a H-shaped cross-section and formed of a lead-based material is held by the partition wall to interconnect cells in adjacent cell rooms. The intercell electrically connecting member has a first butting end surface in a flat plane shape butt welded to the positive strap, and a second butting end surface in a flat plane shape butt welded to the negative strap.

Abstract: The invention is directed at ensuring stable track accessing despite the presence of backlash in a pickup drive mechanism, and at providing a precise track accessing operation not affected by the relative position or relative speed between pickup and carriage at the time a track access start instruction is issued. To achieve this, when the track access start instruction is issued in a tracking condition in which the pickup is following a track on a recording medium, the carriage is caused to begin to move in a track access direction by the action of a coarse actuator, while the pickup is still kept on track of the recording medium by means of a fine actuator.

Abstract: A steam isolation valve system for opening and closing a steam flow passage of a steam flow comprises a valve body, a valve disk accommodated in the valve body to be reciprocatingly movable for opening and closing the steam flow passage, and a drive mechanism for moving the valve disk along an axial direction of the valve body. The steam flow passage has a portion elliptical in section having a short axis in a direction of the reciprocating axis of the valve disk projected on a plane perpendicular to an axis of the steam flow passage. The steam flow passage has a throttling inlet passage which is deformed in shape from a circular tube portion having a diameter D on a steam upstream side to an elliptical tube portion having a long side diameter D and a short side diameter D cos.theta. (45.degree..ltoreq..theta..ltoreq.65.degree.

Abstract: A steam injector includes a casing having a water supply port and a steam intake port, the casing being generally composed of two halves fastened integrally, a water nozzle and a steam nozzle both disposed in the casing and communicated with the water supply port and the steam intake port, respectively, a steam-water mixing nozzle disposed on the downstream side in the casing and a diffuser disposed further downstream side in the casing. The steam injector further includes a guide member such as guide vane or spacer ring for guiding the steam to the steam-water mixing nozzle. The steam injector may includes a needle valve disposed in a steam jetting nozzle, disposed axially in the central portion of the casing, which is provided with a heat transfer preventing structure such as hollow wall structure provided on the outer peripheral surface of the steam jetting nozzle.

Abstract: A miniature motor in which stators are mounted in an interior of a casing, and a preassembled commutator is provided on a rotor rotatably disposed to face the stators. The commutator has a sleeve body having a cylindrical portion provided with a flanged portion and a plurality of recesses, directed outwardly, in a side wall of the flanged portion, with the sleeve body being made of insulating material and mounted on a rotary shaft of the rotor. The commutator also has a plurality of conductive commutator pieces each having a body portion formed in an arcuate shape and mounted on an outer circumferential surface of the cylindrical portion, a terminal portion and at least one retainer portion, with each of the terminal portion and the retainer portion being received in the recesses.

Abstract: A boiling water reactor comprises a reactor pressure vessel accommodated in a vertical fashion, a core disposed at a low portion in the reactor pressure vessel, a plurality of control rods to be inserted from an upper side of the core into the spaces between adjacent fuel assemblies and withdrawn therefrom upwardly, a shroud surrounding the fuel assemblies so as to define the core and having an upper end opening, a shroud head which closes the upper end opening of the shroud and through which the control rods are inserted or withdrawn, a separator standing upward from the shroud head to carry out gas-water separation of steam generated from the core, a fixing pedestal disposed above the separator, a control rod driving mechanism mounted on the fixing pedestal and adapted to drive the control rods, a drier unit including a plurality of drier elements annularly arranged along an upper inner wall surface of the reactor pressure vessel and adapted to dry the steam passing through the steam flow hole of the fixing

Abstract: A solder is disposed outside a joint area without putting a solder foil in an area to be joined or performing preparatory soldering, and soldering is performed by making the melted solder permeate the joint area by a capillary phenomenon. Further, one member is supported by a solder, and a joint solder layer of desired thickness is obtained by use of a jig for supporting the one and the other member at a predetermined distance therebetween when the solder is melted. Further, if a solder outside a joint area is made to stand vertically in its longitudinal direction, and melted at such a state, pressure caused by self-weight is given to the melted solder, and oxide of the solder surface is separated from the melted solder, so that it is possible to further reduce the generation of voids.

Abstract: A steam injector includes a casing having water supply port and a steam intake port, the casing being generally composed of two halves fastened integrally, a water nozzle and a steam nozzle both disposed in the casing and communicated with the water supply port and the steam intake port, respectively, a steam-water mixing nozzle disposed on the downstream side in the casing and a diffuser disposed further downstream side in the casing. The steam injector further includes a guide member such as guide vane or spacer ring for guiding the steam to the steam-water mixing nozzle. The steam injector may includes a needle valve disposed in a steam jetting nozzle, disposed axially in the central portion of the casing, which is provided with a heat transfer preventing structure such as hollow wall structure provided on the outer peripheral surface of the steam jetting nozzle.

Abstract: A main steam isolation valve of a reactor power plant comprises a valve body provided with inlet and outlet portions through which a steam flows, a cylindrical valve disk accommodated in the valve body to be reciprocatingly movable therein along an inner peripheral surface of the valve body for opening and closing the steam flow inlet portion and a driving mechanism secured to the valve body and operatively connected to the valve disk for reciprocatingly moving the valve disk in the valve body. A coupling member is applied to an end opening of the valve body for holding the valve disk when the valve disk is shifted to a position fully opening the inlet portion. A tubular wall member is integrally formed with the valve body so as to surround the valve disk with a gap therebetween when the valve disk is fully opened. A guide rib is further disposed to the valve body for causing asymmetric steam flow in the inlet portion of the steam flow of the valve body.

Abstract: The present invention pertains to a thin film solar cell array that has an increased durability to high temperatures and high humidity. The thin film solar cell includes a transparent insulating substrate on which unit cells are placed in series. The rear electrodes of the unit cells are made of paste material containing conductive particles which may be applied by printing and baking at about 150.degree. C. Further, the present invention achieves low contact resistance to the a-Si layer.

Abstract: The present invention pertains to a thin film solar cell array that has an increased durability to high temperatures and high humidity. The thin film solar cell includes a transparent insulating substrate on which unit cells are placed in series. The rear electrodes of the unit cells are made of a paste material containing conductive particles and baked at about 150.degree. C. Further, the present invention achieves low contact resistance to the a-Si layer.

Abstract: A homogenizing mixer for stirring and homogenizing liquids such as paints, printing inks, foodstuffs, medicines and cosmetics. The homogenizing mixer has a stirring unit comprising an upper casing, a lower casing fixedly joined to the upper casing, a fixed shearing plate fixedly held between the upper casing and the lower casing, a rotary shearing disk fixedly mounted on a rotary shaft having a lower end extending within the stirring unit and an upper end operatively connected to driving means, so as to be positioned under the fixed shearing disk with a small clearance therebetween, and a propeller fixed to the lower extremity of the rotary shaft to suck a liquid into the stirring unit and to urge the liquid toward the fixed shearing disk and the rotary shearing disk so as to be discharged from the stirring unit. The clearance between the fixed shearing disk and the rotary shearing disk is adjusted properly according to the properties of the liquid.

Abstract: A shock absorber comprises a cylinder with a cylindrical bore, an actuator piston with a rod slidably received in the bore, and an adjustment piston slidably received in the bore and resiliently kept in a predetermined position. The adjustment piston cooperates with the actuator piston to define an adjustment chamber therebetween. The adjustment piston is movable in response to pressure developing within the adjustment chamber to vary a rate of air flow between the adjustment chamber and the ambient atmosphere so as to decelerate the actuator piston during its extending movement relative to the cylinder, thus providing a slow and gradual extending movement of the actuator piston.

Abstract: A blade removal apparatus for a changeable blade scalpel in which a blade is removably mounted on a scalpel handle by fitting a mounting hole formed in the blade over a blade mounting part having a narrow width provided on the tip end of the scalpel handle. The blade removal apparatus has a box part having an open top and a side wall and an acceptor part projecting laterally from the upper part of the side wall, and a cover part closing the open top and having a visored part extending over the acceptor part. A guide edge on the acceptor part defines a lower gap tapered so as to become narrower as it extends to the inside of the box part and into which blade mounting parts of changeable blade scalpels of various types can be inserted. The cover part has a stopping stepped part defining an upper gap between the lower surface of the visored part and the guide edge and into which upper gap a blade on a scalpel is insertable.

Abstract: A rotational angle detecting device includes a rotatable plate attached to a shaft of a rotatable motor having a plurality of windows located at a first angular pitch and at a selected circumference with respect to the shaft, a light source, a stationary plate including first and second photoelectric detecting elements at a second pitch and the selected circumference, and electrical conductors connecting the first detecting elements in parallel and the second detecting elements in parallel such that the sum of the electrical signals produced by the photoelectric detecting elements are used to generate digital signals describing the rotational movement of the shaft with respect to the stationary plate.

Abstract: A blade container for single edge blades for a straight edge type razor with a replacable blade held in a blade holder. The container has a blade attaching slot in one end wall adjacent one side wall for receiving the end of the blade holder, and a blade detaching slot in one end wall adjacent the other side wall and having a blade retaining projection therein on the side of said slot away from the other side wall. A blade attaching slider is slidable along the container toward and away from the blade attaching slot and a blade compartment therein extending between the side walls in which blades are movable in a direction from one side wall to the other. A blade support and guide within the container adjacent the blade detaching slot is spring urged in a direction through the compartment for urging blades in the compartment toward the side wall adjacent the blade attaching slot and guides a blade holder toward the side wall adjacent the blade attaching slot and behind the blade retaining projection.