Abstract: A battery container for containing battery elements includes large thickness sections formed on the outer rims of walls that compose the container and small thickness areas formed in the areas surrounded by the large thickness sections. A spacer that is formed of straight-line ribs, a combination of latticed ribs and projections, cylindrical projections or the like is disposed on the small thickness areas and the outer surface of the spacing means protruded out of the outer surfaces of the large thickness sections, thereby ensuring the mechanical strength and durability of the container and at the same time allowing cooling air to circulate efficiently along the walls of the battery envelope. This facilitates the transfer of heat produced inside of the battery to the outside.

Abstract: To increase heat dissipation from a plasma display panel, a heat sinking unit 2 bonded to a curved back surface 11 of a panel unit includes a large number of fin blocks 21 arranged spaced apart from each other by a prescribed distance and a flexible thin-wall portion 22, and a joining section 221, which consists of fin anchoring portions 212 and thin-wall portions 22, is capable of being bent between the fin blocks 21, thus allowing the heat sinking unit 2 to conform to the curvature of the panel unit back surface 11.

Abstract: To increase heat dissipation from a plasma display panel, a heat sinking unit 2 bonded to a curved back surface 11 of a panel unit includes a large number of fin blocks 21 arranged spaced apart from each other by a prescribed distance and a flexible thin-wall portion 22, and a joining section 221, which consists of fin anchoring portions 212 and thin-wall portions 22, is capable of being bent between the fin blocks 21, thus allowing the heat sinking unit 2 to conform to the curvature of the panel unit back surface 11. When using a heat sinking unit not structured to conform to the curvature of the panel unit back surface 11, a high-orientation graphite film as a heat equalizing layer is interposed between the panel unit back surface and the heat sinking unit.

Abstract: A flat display device includes cathodes, a screen plate having a fluorescent screen, a plate-like electrode for controlling electron beams from the cathodes to the fluorescent screen, and a frame body for supporting the plate-like electrode. The frame body securely fixes both ends of the plate-like electrode at two opposite sides thereof, and has an elastic body for supporting the plate-like electrode in a stretched state by a spring force of the elastic body. The flat display device is made by the steps of pressing a pair of leaf springs provided respectively at two confronting sides of a frame body to thereby bend the frame body in such directions that the confronting sides become close to each other, securely fixing both ends of a plate-like electrode to the pair of bent leaf springs, and releasing the pressing of the leaf springs to thereby restore the leaf springs.

Abstract: A method for fixing to a frame an electrode or a shadow mask for an image receiving tube. The method includes steps for stretching, in opposite directions, supporting ends of a rectangular mask plate having apertures formed between the supporting ends, in order to generate a tensile force having a uniform distribution over the entire surface of the plate. The method also includes pressing inwardly and bending a pair of elastic supporting elements, constituting two confronting sides of a frame, so that a distribution of the pressing force in a direction of each of the sides almost balances with a distribution of the tensile force. The supporting ends of the mask plate are then rigidly fixed to both of the bent supporting elements of the frame. The stretching and pressing forces applied to the mask plate and the frame are then released.

Abstract: A method for processing three-dimensional shape data includes steps of obtaining a plurality of point data along a surface of an object having a three-dimensional shape; taking out a point data from the obtained point data to be processed, approximating each specified number of point data in the to-be-processed point data adjacent the taken-out point data by a polynomial and then finding two unit vectors at the taken-out point data; finding an opening angle defined between the two found unit vectors; comparing the found opening angle with a predetermined threshold value of the opening angle, determining whether or not the found opening angle is not larger than the threshold value, and thinning the taken-out point data when the found opening angle is larger than the threshold value and not storing the taken-out point data in a storage unit, and leaving the taken-out point data without the thinning when the found opening angle is not larger than the threshold value and storing the taken-out point data in the st

Abstract: A color selecting electrode for a color-picture tube, includes a rectangular frame-shaped frame having a pair of mutually-opposite long sides and a pair of mutually-opposite short sides, and a mask plate which is stretchedly supported on top surfaces of the frame while receiving a resilient spring force exerted from the frame, the long sides having a greater section modulus and a greater rigidity than the short sides. A method of manufacturing the color selecting electrode includes the step of welding, to the frame pressed inward by an equally-distributed force applied to the pair of long sides and the pair of short sides, the mask plate of which four sides are stretched outward by a distributed force which approximately counterbalances the equally distributed force.

Abstract: A rotary head cylinder of a rotary head assembly includes a first projection for reducing jitter. The first projection is smoothly formed in the vicinity of a point where a tape is separated from a fixed cylinder and is extended in a lengthwise direction of the tape. A second projection is provided for increasing a restricting force on an upper edge of the tape in a direction toward a surface of the fixed cylinder. The second projection is smoothly formed in the vicinity of a lower edge of the tape at the same point on the fixed cylinder and is extended in the lengthwise direction of the tape.

Abstract: An apparatus for applying coating material in the form of stripes onto a film traveling in a predetermined direction is provided with a coating material nozzle which effuses coating material while supporting the film. The contact support surface of the nozzle in contact with the film is a flat surface, along which the film travels. The coating material nozzle has thereon applicator grooves for uniformly forming the cross-sectional shape of coating material applied in the form of stripes onto the film. Effusion ports or discharge ports for coating material are provided in the bottom surface of the applicator grooves. Coating material is fed to the coating material nozzle through a gear pump, which is adapted to control the coating material supply so that the coating material within the applicator grooves has a pressure lower than atmospheric pressure.

Abstract: A coating apparatus includes: a block-shaped die main body; upper and lower nozzle parts projecting from the die main body to form a nozzle, forward end portions of the upper and lower nozzle parts being substantially cylindrical and each of the portions having a constant curvature, the forward end portion of the upper nozzle part serving as a guide, a discharge opening having a slit-shaped sectional configuration being provided in the guide, a bottom surface of which is lower than a surface of the guide; a coating material reservoir, provided in the die main body, communicating with the discharge opening; a groove formed between the upper and lower nozzle parts, through which the discharge opening communicates with the reservoir; a partitioning plate mounted widthwise substantially entirely on one of the forward end portions of the upper and lower nozzle parts so that the partitioning plate is movable through the nozzle to open the groove; a rotary block pivotably supporting the die main body for rotation th

Abstract: A coating head assembly for applying a coating material to a web, comprises an applicator block; a paint reservoir defined in the applicator block for the storage of the coating material; and a generally elongated nozzle integral with the applicator block and extending in a direction substantially transverse to the direction of transportation of the web. A free edge of the nozzle opposite to the applicator block has a generally curved nozzle face. This nozzle face has a plurality of applicator grooves defined therein in communication with the paint reservoir. During the passage of the web in sliding contact with the nozzle face, the coating material is supplied outwardly from the applicator grooves for the transfer thereof onto the web, resulting in the formation of a striped pattern of the coated layer on the web.

Abstract: A method for adjusting the position of a magnetic head with respect to a magnetic recording medium includes use of a light beam. The beam illuminates the contact area between the magnetic head and the magnetic recording medium so as to generate an optical interference pattern. The position of the magnetic head is adjusted so that the generated interference pattern takes a predetermined pattern. In a disclosed embodiment, two heads sandwich a floppy disk, and one light beam passes through a transparent portion each head. Each beam also passes through a transparent portion of a floppy disk to illuminate the contact region.

Abstract: A method for heating a patterned substrate having electronic components, using a heat control mask having plural apertures is disclosed. Heat transfer rates associated with the apertures are determined by thermodynamic analysis based on the discrete two-dimensional heat conduction equation treating heat from the heater as an advection.

Abstract: A magnetic recording/reproducing apparatus for recording information on a disc-like recording medium and/or for reproducing the recorded information therefrom. The magnetic recording/reproducing apparatus has a pair of magnetic head devices each composed of a magnetic head chip and a sliding pad for slidably holding the disc-like recording medium therebetween under a predetermined contact pressure. The magnetic head chip is surrounded at a predetermined interval by the sliding pad and the top portion of the magnetic head chip is disposed so as to protrude by a predetermined amount from a sliding surface of the sliding pad which comes into contact with the said disc-like recording medium. The pair of recording head devices are aligned with each other with the disc-like recording medium being held therebetween so that the magnetic head chips are arrranged at different positions at the same interval with respect to the sliding pads in a radial direction of the disc-like recording medium.

Abstract: In a rotary head assembly in which a rotary member (14) provided with a magnetic head (23) in the gap between the upper and the lower fixed cylinders (17 and 18) having nearly equal diameters and arranged coaxially with each other is turned, use is made of a structure such that the upper and the lower fixed cylinders (17 and 18) are secured in place and supported by a fixed shaft arranged coaxially therewith, whereby more stable magnetic tape running has been realized, while achieving ease of assembling with high accuracy and reduction of power consumption.

Abstract: A device imparts a predetermined motion to an object by using a cam. The device comprises a load compensator disposed at any desired position in a driven section and adapted to apply a force or torque to the driven section in order to counterbalance variations in the force of contact between a cam and a cam follower. The variations are caused by the movement of the driven section. The force of contact is maintained at a constant value, and enables the achievement of stabilized high-precision motion of the cam driven system, particularly the achievement of high-precision high-speed machining of the lead on a VTR lower cylinder by using an end cam.

Abstract: This invention relates to a rotary head assembly in which a magnetic tape runs while being would helically, consisting of a fixed cylinder 21 having a fixed cylindrical part, and a rotatable rotary member 19 having a diameter approximately equal to that of said fixed cylinder 21, being disposed coaxially with a very small gap and holding a magnetic head 29, wherein pump-out type spiral grooves 20 are provided either partly or wholly on either plane of the confronting planes formed in the relative rotating part between said fixed cylinder 21 and said rotary member 19 in order to create a buoyancy on a running magnetic tape by air pressure not only in the rotary cylinder area but also in the fixed cylinder area, to realize a stable and smooth tape running, and to radically eliminate the tape chirping phenomenon, sticking phenomenon, and tape damage and cylinder wear accompanying sliding.

Abstract: A tape guide device of a rotary head type video tape recorder of the helical scanning system including a shoulder portion formed on an outer circumferential surface of a lower stationary cylindrical portion cooperating with an upper rotary cylindrical portion and constituting a head cylindrical drum for guiding a magnetic tape. The shoulder portion has, in a section thereof with which the magnetic tape is not brought into contact, a configuration consisting of a plurality of parabolic lines connected to one another.

Abstract: A rotary head assembly having a central stationary shaft one end of which is securely joined to a lower housing, a bearing spacer securely fitted over the stationary shaft at the other end thereof and a rotary sleeve disposed for rotation about the common axis of the stationary shaft and the bearing spacer, whereby a hydraulic bearing is defined by the bearing spacer, the rotary sleeve and a lubricant filled into the space between the bearing spacer and the rotary sleeve, and a hydraulic passage is defined between the stationary shaft and the rotary sleeve. The lower end of the lubricant passage is provided with a magnetic sealing means which seals a magnetic liquid so as to prevent the leakage to the exterior of the magnetic liquid or the lubricant. An upper cylinder which carries one or more video signal recording and reproducing heads is removably mounted on the rotary sleeve.

Abstract: The present invention relates to a rotary head assembly for a magnetic recording and reproducing device such as VTR. A stationary center shaft is mounted on the side of a stationary cylinder while a rotary sleeve which is fitted over said stationary center shaft for rotation about the axis thereof is disposed on the side of a rotary cylinder. A lubricating oil is injected between the rotary sleeve and the stationary center shaft so that a space between the cylinders may be utilized so as to provide a hydraulic bearing portion. Thus, the rotary head assembly may be made compact in size and to a higher degree of accuracy. In addition, the thrust load carrying point of the hydraulic bearing portion is located on the side of the rotary cylinder, and the portion adjacent to the thrust load carrying point has a sealing arrangement or construction so as to prevent the leakage of lubricating oil and to stabilize the rotation of the rotary cylinder.