Abstract: Each of formula constituent elements represented in real mathematical notation is written by a user via an input device on a display screen. While confirming positions of graphic elements indicative of each of the respective inputted constituent elements with respect to the display screen, the user forms a desired formula. On the basis of types of the inputted constituent elements and their positions on the display screen, an arithmetic relationship between the formula constituent elements is automatically obtained by a computer. A computer program to solve this formula is automatically produced by the computer based on the resultant arithmetic relationship. The solutions of the formula are displayed on the display screen as numeral values and graphic representations.

Abstract: A display apparatus automatically rounds corners of a rectangular area frame for display thereof, the rectangular area frame including that of a window or that of a graph and the like displayed within the window. The rounding is effected by automatically calculating and displaying circular arcs (ellipstic arcs) of corners based on the inputted corner coordinates of the rectangular area frame, or by not displaying one or several dots of each corner. In the case where multi-windows are displayed in an overlap manner or a plurality of rectangular area frames are displayed within a window, the corners are not displayed stiffly and emphasized unnecessarily, thus providing a visually soft and natural display image, improving the quality of displayed images, and providing an improved handy method for use by an operator.

Abstract: An Icon window display area taking precedence over all other display areas is disposed in the display screen. A window which becomes invisible at generation of a new window, a window size change of an existing window, or a position change of an existing window represented as an Icon which the operator can recognize or identify is the invisible window displayed in a new Icon window display area.

Abstract: A disk player with disk changer functions has an elevatable stacker for storing plural disks for playback. A mechanism or elevation of the stacker relative to a main body of the player includes a motor, a threaded shaft (95) rotated by the motor and a nut (96) fixed to the bottom of the stacker in engagement of the threaded shaft (95) to allow elevation of the stacker in response to rotation of the threaded shaft. The threaded shaft has a smaller diameter than a central aperture of the disk when received in the stacker. The fixed position of the nut may be adjusted to vary relative angular position with respect to the threaded shaft. A projection (96) may be inserted into one of a plurality of apertures (903) to vary or adjust the position of the nut relative to the shaft (95).

Abstract: An Icon window display area taking precedence over all other display areas is disposed in the display screen. A window which becomes invisible at generation of a new window, a window size change of an existing window, or a position change of an existing window is reduced to a predetermined size so as to be displayed in a new Icon window display area.

Abstract: A disk player with disk changer functions and having a stacker for storing plural disks for playback allows a new disk to be added or disks to be changed without removing the stacker. The disk player is also convenient for playback of single disks not to be stored in the stacker. A single tray carrying one of disk-carriages is transportable between a loaded position inside the player and an ejected position outside the player, by means of a shuttle engageable with the tray. During further movement of the shuttle in the disk-loading direction, it is disengaged from the tray in the loaded position. Instead, the shuttle comes into engagement with the carriage formerly carried by the tray, to separate the carriage from the tray remaining in the loaded position and advance the same toward the stacker. The carriage is at last received fully in the stacker with the help of a spring, which releases engagement between the shuttle and the in-stacker carriage.

Abstract: An operator activates a document editing program or editing document data including character strings, graphics and image data with the aid of an input device and a display. In the course of edition of the document data by the operator, application programs are activated. The operator can write the characters, graphics and others into the document data being edited by making use of the application programs.

Abstract: A disk playback device with disk changer functions and having a stacker for storing two or more disks for playback allows a new disk to be added or disks to be changed without removing the stacker. The disk playback device is also convenient for playback of single disks not to be stored in the stacker. Transport of the disks is accomplished by displacement of holders in which the disks are individually received. When a disk is in the read position, it is clamped in place and the holder is lowered to a nonobstructing position to allow the disk to be read. The number of holders exceeds the number of stored disks, whereby a vacant holder is available for conveniently reading a disk not stored in the magazine.

Abstract: A reel shaft is mounted in a recording and/or reproducing apparatus such as a DAT unit for rotating a reel hubs in a tape cassette loaded in a predetermined position in the apparatus to reel up a magnetic tape into the reel hubs. The reel shaft includes a plurality of vanes secured to the outer periphery of a rotating body and adapted to be in engagement with corresponding engaging members formed in the reel hub. The vanes define respectively ridges extending in alignment with a center line in width of the magnetic tape when the tape cassette is in a predetermined loaded position in the apparatus. The reel hub is rotated with the reel shaft through engagement between the vanes and the corresponding engaging members, which is effected at specific points located on the ridges of the respective vanes of the reel shaft. Through such engagement, the axis of the reel hub remains coincident with the axis of the reel shaft during rotation.

Abstract: The movement volumes of X and Y to the X axial direction and the Y axial direction and the rotate angle .theta. of the coordinate input device moved on the substrate, are calculated by the input controller. The calculating device outputs instruction signals to the display device to move the cursor displayed on the display device by the movement volumes of X and Y, and rotate the cursor by the rotation angle corresponding to that calculated by the input controller.

Abstract: An inner latent image type silver halide photographic emulsion which is spectrally sensitized by adding at least one cyanine dye represented by general formula (II) to a direct positive inner latent image type silver halide photographic emulsion and thereafter adding additionally at least one cyanine dye represented by general formula (I) to said emulsion ##STR1## (the symbols are as defined in the appended claims). A remarkable increase of spectral sensitivity, an increase of maximum density and a decrease of minimum density can be obtained by this silver halide photographic emulsion.

Abstract: A photographic light-sensitive material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer in combination with an immobile LDA compound represented by the following general formula (I): ##STR1## wherein n, x, y and z each stands for an integer of 1 or 2; m stands for an integer of 1 or more; D stands for a group containing an electron donor or its precursor moiety; A stands for an organic group linking Nup to --E--Q--Col or D; Nup stands for a precursor of a nucleophilic group; E stands for an electrophilic center; Q is a divalent group; Col stands for a group containing a dye or its precursor moiety; Ball stands for a ballast group; L stands for a linking group; and M stands for an optional substituent, said LDA compound being capable of releasing a diffusible dye or its precursor upon redox reaction.

Abstract: An inner latent image type silver halide photographic emulsion which is spectrally sensitized by adding at least one monomethine cyanine dye represented by general formula (II) to a direct positive inner latent image type silver halide photographic emulsion and thereafter adding additionally at least one monomethine cyanine dye represented by general formula (I) to said emulsion ##STR1## (the symbols are as defined in the appended claims). A remarkable increase of spectral sensitivity, an increase of maximum density and a decrease of minimum density can be obtained by this silver halide photographic emulsion.

Abstract: A color diffusion transfer process light-sensitive element is disclosed. The element is comprised of a support having coated thereon a light-sensitive silver halide emulsion layer which is associated with a dye image-providing compound. The dye image-providing compound is dispersed in a copresent state with a compound represented by the general formula (I): ##STR1## wherein the substituents within the general formula (I) are defined within the specification. The element has improved maximum image density and by utilizing the compound of the general formula (I) it is possible to obtain improved dispersion stability.

Abstract: A color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound encompassed by one of two general formulae which are specifically disclosed. The compound associated with the silver halide emulsion layer is an azo dye image-forming compound which provides a yellow dye image having excellent transferability and light fastness. The azo dye image forming compound is particularly suitable for use in a photographic material for a color diffusion transfer process. The disclosed material is capable of providing a transferred dye image with a high maximum image density (D.sub.max), a low minimum background density (D.sub.min), a good gradation and excellent color hue.

Abstract: In a photographic element for the color diffusion transfer process including a neutralizing system for reducing the pH of an aqueous alkaline developing solution which comprises a neutralizing layer and a timing layer, wherein the timing layer is positioned on or under the neutralizing layer in direct or indirect contact therewith such that the aqueous alkaline developing solution reaches the neutralizing layer through the timing layer, the improvement which comprises the timing layer comprising a polymer latex which is produced by emulsion polymerization of each of at least one monomer selected from the group consisting of monomers of Group (A), at least one monomer selected from the group consisting of monomers of Group (B) and at least one monomer selected from the group consisting of monomers of Group (C), wherein said Group (A) monomers are represented by the following formula (I): ##STR1## wherein R represents a hydrogen atom or a methyl group; T represents a hydrogen atom or an aliphatic group; Q repre

Abstract: 2-Arylnaphtho[1,8-bc]furan-5-ones represented by general formula (I): ##STR1## wherein G represents a substituted phenyl group, an unsubstituted or substituted 1-naphthyl group and an unsubstituted or substituted 2-naphthyl group, with the substituents being selected from the group consisting of a straight chain or branched chain alkyl group having 1 to 5 carbon atoms, a straight chain or branched chain alkoxy group having 1 to 3 carbon atoms and a halogen atom; are disclosed as well as photopolymerizable compositions containing at least one of the above compounds as a photopolymerization initiator for addition polymerizable ethylenically unsaturated compounds.

Abstract: A heat developable light-sensitive material comprising a support having thereon at least one light-sensitive layer containing (1) an oxidation-reduction image-forming combination of (a) a silver salt oxidizing agent and (b) a reducing agent and (2) a catalytic amount of a light-sensitive silver halide or a compound capable of reacting with the silver salt (a) to form a light-sensitive silver halide, the light-sensitive layer further containing (3) at least one specific phthalazinone compound. The development of the above light-sensitive material is carried out simply by heating the material at a temperature of about 90.degree. to 180.degree. C. for 1 to 60 seconds after imagewise exposure. An image of black tone can be obtained without contaminating the developing machine.

Abstract: A heat developable light-sensitive material comprising a support having thereon or therein at least (a) an organic silver salt, (b) a light-sensitive silver halide or a light-sensitive silver halide-forming component and (c) as a reducing agent at least one ester selected from the group consisting of (1) esters of carboxylic acids derived from phenol derivatives in which at least one of the o-positions thereof is substituted, preferably substituted with a bulky group, and mono- or poly-hydric alcohols, and (2) esters of alcohols derived from polyhydric phenols in which at least one of the o-positions thereof is substituted, preferably substituted with a bulky group, and mono- or polycarboxylic acids, to reduce the thermal fog produced at the background after heat development processing, and to increase the whiteness of the unexposed areas and the stability to normal room illumination.

Abstract: A heat-developable light-sensitive material comprising a support having thereon at least one layer containing (a) an organic silver salt oxidizing agent; (b) a catalytic amount of a light-sensitive silver halide or a compound capable of forming a light-sensitive silver halide through reaction with the organic silver salt component (a); (c) a reducing agent; and (d) at least one compound represented by the following general formulae (I) to (III) ##STR1## in which A and B each represents different substituents selected from the group consisting of an amino group and a --OX group; X represents a hydrogen atom, an alkali metal atom, a silver atom, a mercury atom or a gold atom; R.sub.1 and R.sub.2 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aralkyl group, an allyl group, an acyl group, an aryl group or an aryloxy group; and R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or an alkyl group.