Abstract: It is an object of the present invention to provide a light-emitting element that has fewer defects in operation due to crystallization of a layer included in the light-emitting element. A light-emitting element according to the present invention has a layer including a metal oxide and a compound that exhibits an electron donating property to the metal oxide. This layer has a first region and a second region. The metal oxide included in the first region has a higher concentration than the metal oxide included in the second region. The first region and the second regions are provided alternately and repeatedly. Each of the first region and the second region has a distance of 0.1 nm or more and 10 nm or less, more preferably 1 nm or more and 5 nm or less, in a thickness direction of the layer.

Abstract: The invention provides a photoelectric conversion element and a solar battery having the photoelectric conversion element each of which has a structure with a high carrier generating rate. Further, the invention provides a photoelectric conversion element and a solar battery having the photoelectric conversion element of which high energy converting efficiency. According to the invention, the photoelectric conversion element and the solar battery having the photoelectric conversion element are characterized in that a pair of electrodes sandwich a mixed layer including a charge generating layer and a charge acceptor layer. The charge generating layer is formed of a first organic compound and an inorganic compound. The charge acceptor layer is formed of a second organic compound.

Abstract: A disk cartridge housing in which a disk compartment is formed by combining an upper shell and a lower shell. The cartridge has an opening portion which overlaps with a shutter member to expose a part of the disk compartment. A convex rib and a concave groove arrangement is used between the opening portion and shutter member to form a dust-proof housing.

Abstract: The present invention provides a display device including a nonvolatile memory circuit to which data can be added without increasing the number of manufacturing steps, and an electronic appliance using the display device. A display device of the present invention has a memory circuit that includes a memory element with a simple structure in which an organic compound layer is interposed between a pair of conductive layers. According to the present invention having the above mentioned structure, a display device having a nonvolatile memory circuit to which data can be added can be provided without increasing the number of manufacturing steps.

Abstract: It is an object to provide a semiconductor device the data writing of which can be performed except in manufacturing and the counterfeiting of which by rewriting can be prevented. Furthermore, it is another object of the invention to provide a semiconductor device constituted by an organic memory having a simple structure at low cost. A memory cell is constituted by connecting a transistor in parallel or series to an organic element having an organic compound layer, and each memory cell is connected in series or parallel to constitute a NAND memory or a NOR memory. The organic element can change its electrical property irreversibly by application of a current or a voltage, irradiation of light, or the like.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: Disclosed is a disk cartridge capable of preventing the permeation of dust in the disk cartridge. A labyrinth shape portion having a recessed dust deposition portion formed in a gap at a portion between tilt planes for overlap of shutters are vertically overlapped to each other.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: The present invention relates to a disk cartridge in which a disk-like recording medium such as an optical disk, a magneto-optical disk and a magnetic disk is accommodated within a disk compartment of a cartridge housing, a disk recording medium device in which the disk-like recording medium is accommodated in advance within the disk compartment so as to become freely rotatable and a disk recording and/or reproducing apparatus for recording and/or reproducing information by using this disk recording medium device.

Abstract: Disclosed is a disk cartridge capable of preventing the permeation of dust in the disk cartridge. A labyrinth shape portion having a recessed dust deposition portion formed in a gap at a portion between tilt planes for overlap of shutters are vertically overlapped to each other.

Abstract: The present invention relates to a disk cartridge for accommodating a disk-like recording medium such as an optical disk, a magneto-optical disk and a magnetic disk into a disk compartment of a cartridge housing, a disk recording medium device in which the disk-like recording medium is accommodated within the disk compartment so as to become freely rotatable and a disk recording and/or reproducing apparatus for recording and/or reproducing information by the use of this disk recording medium device.

Abstract: The present invention is to provide a disk cartridge and the like in which a disk cartridge can be increased in strength and in which a disk recording and reproducing apparatus can be simplified in structure.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: A tape cartridge comprising a base plate and a cover fixed to the base plate to define a closed space housing first and second hubs, first and second tape guides, a drive roller and first and second corner rollers all of which are mounted on the base plate. A magnetic tape is unwound from one of the first and second hubs, guided by the first and second tape guides and wound on the other hub. The drive roller is located between the first and second tape guides for driving a drive belt looped on its tape winding surface. The drive belt is also looped on the tape winding surfaces of the first and second corner rollers. The first corner roller is located to hold the drive belt in contact with a peripheral surface of the first hub and the second corner roller is located to hold the drive belt in contact with a peripheral surface of the second hub.

Abstract: A disc cartridge having a disc for recording information signals and a main cartridge body member for rotatably housing the disc. The disc cartridge is designed to be loaded on a recording and/or reproducing apparatus. The main cartridge body member has, on its one surface, a label area for bonding a display label indicating the recording contents of the information signals, while having, on its other surface, a spindle hole for rotating the disc by the recording and/or reproducing apparatus. The main cartridge body member has a design parameter discriminating hole extending along the back side opposite to the front side in the cartridge inserting direction. The recording capacity or design parameters of the disc housed within the main cartridge body member may be discriminated by detecting the design parameter discriminating hole.

Abstract: A disc cartridge in which disc cleaning can be made reliably despite prolonged use. The disc cartridge includes a disc-shaped recording medium 1, a main cartridge body unit 11 combined from a pair of cartridge halves 12, 13, a pair of liners 27, 28 for wiping off dust and dirt affixed to the disc-shaped recording medium 1, and plural sets of lifter units 15, 16, 17 comprised of paired rib-like protrusions 18, 21; 19, 22; 20, 23, formed as-one with the inner surfaces of the cartridge halves 12, 13 for uplifting the liners 27, 28 into pressure contact with the front and back sides of the disc-shaped recording medium 1. The plural sets of the lifter units are provided for extending along the direction of rotation of the disc-shaped recording medium. At least one of the rib-like protrusion 18, 20, 22 of the lifter units are designed as substantially comb-shaped rib-like protrusions combined from radial ribs 29, 31, 33 and circumferential ribs 30, 32, 34.

Abstract: A disk cartridge for data storage or the like includes a cartridge casing having a disk formed as a data storage medium rotatably mounted therein. The cartridge casing includes an opening defined therethrough for allowing access to the rotatable disk. A substantially U-shaped metallic shutter is slidably disposed on the cartridge casing to as to cover and uncover the access opening according to sliding movement thereof. The metallic shutter is formed by bending processing of a metallic plate material, such as aluminium to form a substantially U-shaped shutter body having a display surface portion defined on an outer side thereof. The display portion is formed by pressing and deforming a selected area of the outer side of the shutter body and forming thereon a matt display area having a surface roughness greater than other surface portions of the shutter body.

Abstract: A disk cartridge case is disclosed which has improved durability and which enables hanging for display or storage purposes. The disk cartridge case includes a case body and a cover for covering a cartridge inserting port provided on the case body. The cover has a cover back member superposed on a case body back member of the case body, a cover front member, a front forming plate, a closing member and a bottom member. The cover back member has a non-adhesion portion located on a side of the closing member and being capable of contacting and separating from the case body back member and an adhesion portion located at an opposite-side of the closing member and being adhered to the case body back member. Furthermore, the cover front member includes an insertion tab having a locking tab. The insertion tab and locking tab are received by a slot formed in the front forming plate. Then, by hooking the locking tab on edge of the slot, the cover front member is secured to the front forming plate.