Abstract: A tape cassette which is convenient for minimization is provided. A cassette case is formed from an upper half and a lower half. A back lid includes a front lid, a back lid and a top lid, and covers over a portion of a magnetic tape positioned outside the cassette case. A lid locking member is mounted on the cassette case for engaging with an arresting recessed portion of the front lid to lock the lid member at a closed position. A torsion spring for biasing the lid member toward the closed position is resiliently contacted at an arm thereof with a spring anchoring portion of the lid locking member to exert a pivoting force to pivot the lid locking member to its locking position. A stopper portion is provided on the lower half such that an abutting portion of the lid locking member may be abutted therewith to prevent excessive pivotal motion of the lid locking member toward the locking position.

Abstract: In order to improve area efficiency of a mask ROM, a head address is inputted from a common pad (204) only in an initial access, so that addresses are thereafter changed by an internal counter (212). Data output is carried out through the common pad (204). Wires are employed for address input and data output in common, thereby remarkably reducing the number of wires.

Abstract: A recording medium cassette comprises a cassette case cassette case board and a release part. The cassette case board has a plurality of board terminals and also has positioning holes formed in its outer surface so as to expose the plurality of board terminals along with insertion guide channels formed consecutively at the lower ends of the positioning holes so as to reach the lower end of the cassette case. Also, a release part slopes towards the lower end of the insertion guide channel away from the outer surface.

Abstract: In order to improve the degree of storage data integration, side walls (32) are selectively formed on side surfaces of word lines (22) to serve as masks for changing ON-state current values of memory cells by changing widths or lengths of active regions (24) of the memory cells, thereby forming several of types of memory cells having different electrical properties. Storage data per memory cell is therefore so multivalued that the number of memory cells is reduced.

Abstract: In a tape cassette having a case with a mouth for receiving a magnetic head drum of a recording/reproducing apparatus and containing a recording tape wound on rotatable reels and including a tape run extending across the mouth; a front lid is pivotally supported on side walls of the case so as to be movable between a closed position covering a front opening of the mouth and opened position to uncover the tape run, and upper lid is pivotally joined at its front edge to the upper edge portion of the front lid so as to be movable between a closed position to covering a top opening of the mouth and opened position to uncover the top opening, and a slide shutter is supported on the case for sliding between a closed position covering a bottom opening of the mouth and opened position to uncover such bottom opening. The mouth across which a run of the recording tape extends can be closely covered by the front lid, the upper lid and the slide shutter when the tape cassette is not in use.

Abstract: A cassette having a recording medium contained therein for use with a recording/reproducing apparatus. The cassette includes a storage device for storing information pertaining to the recording medium and/or the cassette; a plurality of terminals coupled to the storage device and adapted to be coupled to the recording/reproducing apparatus when the cassette is being used therewith so as to transfer the stored information to the recording/reproducing apparatus; and an accidental-erasure prevention switch member located in close proximity to the terminals for inhibiting recording of an information signal onto the recording medium and inhibiting erasing of a previously recorded information signal from the recording medium. At least one hole and a window are provided in the cassette so as to provide access to the terminals and the accidental-erasure prevention switch member. Such at least one hole and window may be arranged so as to provide a relatively large area for fastening a label.

Abstract: A tape cassette including a cassette case having a pair of tape reels having a recording tape wound therebetween and having an opening for providing access to the recording tape; a main lid pivotably mounted on opposite side faces of the cassette case; a top lid pivotably mounted on the main lid; and a guide apparatus. Upon opening or closing the main lid so as to provide access to the magnetic tape, the top lid is respectively moved rearwardly from a position in which the top lid covers an upper portion of the opening or forwardly so as to cover the upper portion of the opening. The guide apparatus guides the top lid during such movement thereof so as to avoid sliding or rubbing of a lower face of the top lid on an upper face of the cassette case.

Abstract: A tape cassette having a cassette case; a pair of tape reels rotatably mounted in the cassette case, on which tape reels a magnetic tape is wound, each of the tape reels having a flange formed with an outer circumferential toothed portion; a slide housing slidably mounted in the cassette case and having a hollow portion into which a reel unlocking member provided in a recording and/or reproducing apparatus is inserted when the tape cassette is loaded into the apparatus; and a pair of lock members adapted to releasably engage with the toothed portions of the tape reels, respectively, to lock the tape reels, the lock members being independently rotatably mounted on the slide housing; whereby when the reel unlocking member is inserted into the hollow portion of the slide housing, the slide housing is slid toward an unlocked position to rotate the lock members and thereby disengage the lock members from the toothed portions of the tape reels, thus unlocking the tape reels; a projection is formed on each lock memb

Abstract: A recording/reproducing apparatus for recording information on and reproducing recorded information from the recording medium of a recording medium cassette comprises a cassette identifying circuit capable of identifying a first recording medium cassette provided with an IC plate provided with an IC chip and a plurality of terminals connected to the IC chip in a specified circuit pattern representing information about the first recording medium cassette and a second recording medium cassette provided with a terminal plate provided with a plurality of terminals connected in a specified circuit pattern representing information about the second recording medium cassette.

Abstract: A tape cassette has a substantially rectangular, box-shaped casing with a recess in a front portion of the casing having openings facing forwardly and downwardly, respectively, and with a bottom wall of the casing having an undersurface including cassette height determining portions adjacent the front and back of the casing and a slide surface portion therebetween which is planar and recessed relative to at least the cassette height determining portions adjacent the back of the casing. A lid is pivotally mounted on the casing for movements between a closed position extending across the opening facing forwardly from the recess and a raised opened position uncovering the forwardly facing opening, and a tape is wound about reels rotatable in the casing and extends between the reels in a path including a run extending across the forwardly facing opening so as to be disposed in back of the lid in its closed position.

Abstract: A recording medium cassette being easily miniaturized if necessary, and a recording and/or reproducing apparatus, such as a VTR, adapted to use the same recording medium cassette. The recording medium cassette includes a printed wiring board having a plurality of information indicating contacts and which is fixed to the bottom wall of a case of the recording medium cassette so that the information indicating contacts are accessible from outside through slots formed in the bottom wall. The recording and/or reproducing apparatus is provided with a plurality of information detecting contacts respectively corresponding to the information indicating contacts of the recording medium cassette. The information detecting contacts may respectively contact the information indicating contacts upon insertion of the recording medium cassette into the recording and/or reproducing apparatus so as to enable information to be transferred therebetween.

Abstract: A tape cassette comprises a case body having a mouth formed in the front portion thereof, a front lid pivotally supported thereon so as to cover the open front side of the case body, and a back lid pivotally joined to the front lid so as to cover a space extending behind the substantially lower half of an exposed portion of a magnetic tape in the mouth. The front lid includes a front wall covering the front opening of the mouth, side walls extending backward from the opposite side edges of the front wall, an upper wall covering the upper opening of the mouth, and a back wall extending downward from the upper wall. The side wall is provided with two guide grooves with two round projections projecting from the inner surface of the side wall being respectively received therein. Each of the two guide grooves has the shape of an arc of a circle having its center at the center of an imaginary circle at one end of the other guide groove.

Abstract: A tape supplying and taking up apparatus is capable of use with either large or small size tape cassettes containing reels which can be of different diameters and rotated with a high degree of accuracy by reel spindles of simple structure. Each tape cassette for use with the apparatus has a shutter of the slide type for closing access holes in the bottom wall of the cassette casing.Each of the reel spindles has a large size cassette receiving portion for receiving a tape reel of a large size tape cassette coaxial with a small size cassette receiving portion for receiving a tape reel of a small size tape cassette. The small size cassette receiving portion is smaller in diameter and disposed at a higher position than the large size cassette receiving portion. The diameter of a lower end of a reel spindle engaging hole provided in each reel hub of the small tape cassette is smaller than the outer diameter of the small size cassette receiving portion of the reel spindle.

Abstract: A sheet discharge apparatus for a printer comprising a platen, a first discharge roller unit movable toward and away from the platen and defining a first sheet insertion passage at a location between the platen and the first discharge roller unit, an openable and closable top cover, a second discharge roller unit mounted for longitudinal movement in parallel relation to the top cover, to define a second sheet insertion passage at a location between the first discharge roller unit and the second discharge roller unit, and positioning means for the second discharge roller unit, which is provided on the printer body.

Abstract: A propulsion air stream deflecting apparatus for an air cushion vehicle having a hull, an air duct mounted on the hull and a propeller fan, includes a plurality of rudders, each mounted on the hull adjacent to the rear open end of the duct for pivotal movement about a vertical axis. The rudders are adapted to close the rear open end of the air duct. A rudder control mechanism is operatively connected to the rudders for controlling the pivotal movement of the rudders to selectively provide a propulsion thrust and a steering thrust to the hull and to provide a closed position in which the rear open end of the air duct is closed by the rudders. A flap is pivotably mounted at the rear end thereof to the duct such that the flap closes an opening, formed at the rear end of the air duct, at a closed position thereof where the inner face of the flap is substantially flush with the inner surface of the air duct.

Abstract: An intake manifold for a V-type multi-cylinder internal combustion engine provided with two banks each including a cylinder head. The intake mainfold comprises lower and upper intake air collectors which lie one upon another and located above one of the two banks. The intake air collectors are supplied with intake air from an air filter. A first group of branch runners are provided to connect the lower intake air collector with the cylinder head of one bank, while a second group of branch runners are provided to connect the upper intake air collector with the cylinder head of the other bank. The upper end section (connected to the lower intake air collector) of each of the first group of branch runners and the upper end section (connected to the upper intake air collector) of each of the second group of branch runners lie one upon another thereby to form a space required for an ignition device and installation operation therefor, between the adjacent branch runners in the cylinder head logitudinal direction.

Abstract: A platen assembly has a pipe shaft having an elastomeric layer therearound, an end of the pipe shaft having cutouts therein extending parallel to the axis thereof and having locking holes therein between the cutouts, and a power transmission member connected to the end of the pipe shaft, the power transmission member having first convexities removably engaged in the cutouts for holding the member against rotation relative to the pipe shaft, and second convexities resiliently removably engaged in the locking holes for holding the member against disengagement from the pipe shaft.

Abstract: In the negative form of lith type film or photographic printing paper, the ground part is light-untransmissible and image part (letter, pattern) is light-transmissible. Apart from them, pinholes and stains also constitute light-transmissible areas. Although the light-transmissible areas of letter and pattern are necessary, the light-transmissible areas of pinhole and stain are unnecessary. Thus, the unnecessary light-transmissible areas must be distinguished from the necessary light-transmissible areas, and an opaque layer must be provided on the unnecessary areas to make them opaque. Generally, however, the unnecessary light-transmissible areas are minute and many in number, so that their detection and opaquing is a very laborious work. Thus, according to the opaquing method of the present invention, only the necessary light-transmissible area is detected and the other light-transmissible areas are regarded as unnecessary and the latter are stopped out.

Abstract: An improved assay for an ATL virus antibody in a specimen, in which an ATL virus antigen is added to the test specimen and used as a comparative specimen. This improved method selectively assays ATL virus antibodies, and, thus, is useful in preventing and treating adult T cell leukemia.

Abstract: Improved method for the measurement of substance comprising simultaneously measuring a plurality of specimens of a substance to be measured by enzyme immunoassay. The process comprises:a. reacting specimens and a material which will be specifically combined with the substance to be measured and which has been made in the solid phase;b. separating the reaction mixture in step (a) into the solid phase and the liquid phase;c. reacting the solid phase with an enzyme-labelled product of a material which will be specifically combined with the substance to be measured;d. separating the reaction mixture in the step (c) into the solid phase and the liquid phase;e. reacting the solid phase or the liquid phase with a substrate for the enzyme in the step (c); andf. measuring the optical density of the reaction mixture.