Abstract: Provided is a cartridge receiving case including a case section in which a cartridge is inserted and disposed, a lid section configured to be opened and closed with respect to the case section and to cover the cartridge disposed in the case section upon closing, and a rear plate section configured to connect the case section and the lid section. The case section, the lid section, and the rear plate section are integrally formed. A pair of parallel thin hinges are formed as curved portions when the lid section is opened and closed with respect to the case section. One of the thin hinges is formed at a position deviated with respect to a continuous portion between the rear plate section and the case section. The other thin hinge is formed at a position deviated with respect to a continuous portion between the rear plate section and the lid section.

Abstract: Provided is a cartridge receiving case including a case section in which a cartridge is inserted and disposed, a lid section configured to be opened and closed with respect to the case section and to cover the cartridge disposed in the case section upon closing, and a rear plate section configured to connect the case section and the lid section. The case section, the lid section, and the rear plate section are integrally formed. A pair of parallel thin hinges are formed as curved portions when the lid section is opened and closed with respect to the case section. One of the thin hinges is formed at a position deviated with respect to a continuous portion between the rear plate section and the case section. The other thin hinge is formed at a position deviated with respect to a continuous portion between the rear plate section and the lid section.

Abstract: An optical information medium having an ink-accepting layer that may secure a high-gloss printed surface similar to print image quality of print image on photographic paper is provided. The optical disk is constituted by sequentially laminating concavo-convex information pits, a recording layer, a reflective layer, a protective layer, a second printing layer, and an ink-accepting layer on a transparent substrate made of synthetic resin such as polycarbonate. In the formation of the ink-accepting layer, the following proportions of the following constituents in percent by weight are milled to prepare an ink for printing: 5 to 15% urethane acrylate; 70 to 80% water-soluble monomer; 5 to 15% water-soluble monomer soluble resin; 5 to 15% photopolymerization initiator; 5 to 15% dyestuff fixing agent; and <5% silica.

Abstract: An optical information medium having an ink-accepting layer that may secure a high-gloss printed surface similar to print image quality of print image on photographic paper is provided. The optical disk is constituted by sequentially laminating concavo-convex information pits, a recording layer, a reflective layer, a protective layer, a second printing layer, and an ink-accepting layer on a transparent substrate made of synthetic resin such as polycarbonate. In the formation of the ink-accepting layer, the following proportions of the following constituents in percent by weight are milled to prepare an ink for printing: 5 to 15% urethane acrylate; 70 to 80% water-soluble monomer; 5 to 15% water-soluble monomer soluble resin; 5 to 15% photopolymerization initiator; 5 to 15% dyestuff fixing agent; and <5% silica.

Abstract: An optical information medium having an ink-accepting layer that may secure a high-gloss printed surface similar to print image quality of print image on photographic paper is provided. The optical disk 1 is constituted by sequentially laminating concavo-convex information pits 3, a recording layer 4, a reflective layer 5, a protective layer 6, a second printing layer 7, and an ink-accepting layer 8 on a transparent substrate 2 made of synthetic resin such as polycarbonate. In the formation of the ink-accepting layer 8, the following proportions of the following constituents in percent by weight are milled to prepare an ink for printing: 5 to 15% urethane acrylate; 70 to 80% water-soluble monomer; 5 to 15% water-soluble monomer soluble resin; 5 to 15% photopolymerization initiator; 5 to 15% dyestuff fixing agent; and <5% silica.

Abstract: A storage case is comprised of a case main body, a cover, a rotating means and a tilt means. The case main body has a bottom plate, the front plate, a back plate, a right plate and a left plate which are arranged so that the front, back, right and left plates surround four sides of the bottom plate. The cover is installed to the case main body so as to open and close an opening of the case main body. The rotating means swingably and slidably connects the cover with the case main body. The rotating means has a rotation shaft installed to the cover and a bearing portion installed to the case main body. The bearing portion is formed into an elongate groove extending in a vertical direction of the case main body. The front plate is tilted forward by the tilt means.

Abstract: To provide a new shutter open/close mechanism suitable for use with a cartridge body (6) whose front end is formed in an arbitrary shape for easily knowing a correct direction of insertion in a recorder/player, a guide recess (36) to support a shutter plate (25) movably is formed on a main side of the cartridge body (6) to be oblique relative to the width of the cartridge body (6). The shutter open/close mechanism (26) includes a guide member (31) supporting the shutter plate (25) and movably engaged in the guide recess (36), an operating member (32) to move the guide member (31), a transmission member (33) connecting the guide member (31) and operating member (32) to each other to transmit an operating force from the operating member (32) to the guide member (31), and support surfaces (37) formed on the cartridge body (6) to support the operating member (32) movably. The transmission member (33) is pivotably connected to the guide and operating members (31) and (32).

Abstract: To easily know a correct direction of insertion into a recorder/player and assure a large width of an access opening through which the optical head approaches an optical disc, a disc cartridge is provided which includes an access opening (21) formed in a cartridge body (6) and through which a part of the recording area of an optical disc (5), extending between lead-in and lead-out areas, is exposed outside for data read and write, a pair of shutter members (25), (26) provided movably towards and away from each other to open and close the access opening (21); and a shutter open/close mechanism (27) having a pair of guide recesses (36a) and (36b) formed in a main side the of the cartridge body (6) obliquely in relation to the width of the cartridge body (6) to support the pair of shutter members (25) and (26), respectively, to be movable.

Abstract: To provide a new shutter open/close mechanism (26) suitable for use with a cartridge body whose front end is formed in an arbitrary shape for easily knowing a correct direction of insertion in a recorder/player, a guide recess (36) to support a shutter plate (25) movably is formed on a main side of the cartridge body (6) to be oblique relative to the width of the cartridge body (6). The shutter open/close mechanism (26) includes a guide member (31) supporting the shutter plate (25) and movably engaged in the guide recess (36), an operating member (32) to move the guide member (31), a transmission member (33) connecting the guide member (31) and operating member (32) to each other to transmit an operating force from the operating member (32) to the guide member (31), and support surfaces (37) formed on the cartridge body (6) to support the operating member (32) movably.

Abstract: An optical information medium having an ink-accepting layer that may secure a high-gloss printed surface similar to print image quality of print image on photographic paper is provided. The optical disk 1 is constituted by sequentially laminating concavo-convex information pits 3, a recording layer 4, a reflective layer 5, a protective layer 6, a second printing layer 7, and an ink-accepting layer 8 on a transparent substrate 2 made of synthetic resin such as polycarbonate.

Abstract: A disc cartridge can effectively prevent dirt particles from entering the cartridge main body and improve the reliability of the operation of signal recording/reproduction on the disc-shaped recording medium. The disc cartridge comprises a cartridge main body 6 and a shutter member 35 having an upper shutter section 41 and a lower shutter section 42 adapted to openably close the recording/reproduction opening 17 and the drive opening 18 arranged outside the cartridge main body 6. A shutter cover 50 is arranged on the main surface of the cartridge main body 6 to cover the area of displacement of the lower shutter section 42. The shutter cover 50 is provided with an opening 51 slightly smaller than the lower shutter section 42 of the shutter member 35 at a position corresponding to the recording/reproduction opening 17 and the drive opening 18.

Abstract: A storage case is comprised of a case main body, a cover, a rotating means and a tilt means. The case main body has a bottom plate, the front plate, a back plate, a right plate and a left plate which are arranged so that the front, back, right and left plates surround four sides of the bottom plate. The cover is installed to the case main body so as to open and close an opening of the case main body. The rotating means swingably and slidably connects the cover with the case main body. The rotating means has a rotation shaft installed to the cover and a bearing portion installed to the case main body. The bearing portion is formed into an elongate groove extending in a vertical direction of the case main body. The front plate is tilted forward by the tilt means.

Abstract: To provide a new shutter open/close mechanism (26) suitable for use with a cartridge body whose front end is formed in an arbitrary shape for easily knowing a correct direction of insertion in a recorder/player, a guide recess (36) to support a shutter plate (25) movably is formed on a main side of the cartridge body (6) to be oblique relative to the width of the cartridge body (6). The shutter open/close mechanism (26) includes a guide member (31) supporting the shutter plate (25) and movably engaged in the guide recess (36), an operating member (32) to move the guide member (31), a transmission member (33) connecting the guide member (31) and operating member (32) to each other to transmit an operating force from the operating member (32) to the guide member (31), and support surfaces (37) formed on the cartridge body (6) to support the operating member (32) movably.

Abstract: To easily know a correct direction of insertion into a recorder/player and assure a large width of an access opening through which the optical head approaches an optical disc, a disc cartridge is provided which includes an access opening (21) formed in a cartridge body (6) and through which a part of the recording area of an optical disc (5), extending between lead-in and lead-out areas, is exposed outside for data read and write, a pair of shutter members (25), (26) provided movably towards and away from each other to open and close the access opening (21); and a shutter open/close mechanism (27) having a pair of guide recesses (36a) and (36b) formed in a main side the of the cartridge body (6) obliquely in relation to the width of the cartridge body (6) to support the pair of shutter members (25) and (26), respectively, to be movable.

Abstract: To provide a new shutter open/close mechanism suitable for use with a cartridge body (6) whose front end is formed in an arbitrary shape for easily knowing a correct direction of insertion in a recorder/player, a guide recess (36) to support a shutter plate (25) movably is formed on a main side of the cartridge body (6) to be oblique relative to the width of the cartridge body (6). The shutter open/close mechanism (26) includes a guide member (31) supporting the shutter plate (25) and movably engaged in the guide recess (36), an operating member (32) to move the guide member (31), a transmission member (33) connecting the guide member (31) and operating member (32) to each other to transmit an operating force from the operating member (32) to the guide member (31), and support surfaces (37) formed on the cartridge body (6) to support the operating member (32) movably. The transmission member (33) is pivotably connected to the guide and operating members (31) and (32).

Abstract: There are provided an optical disc 5, a cartridge body 6, a recording-reproducing opening 21, a shutter plate 25, and a shutter open/close mechanism 26. The cartridge body 6 has a disc container 16 for accommodating the optical disc 5 therein. The recording-reproducing opening 21 is provided on the cartridge body 6 for externally exposing part of a recording area of the optical disc 5 ranging from an inner periphery to an outer periphery. The shutter plate 25 is provided for opening and closing the recording-reproducing opening 21. The shutter open/close mechanism 26 has a guide groove 34 for movably supporting the shutter plate 25. The guide groove 34 is provided obliquely with reference to a width direction of the cartridge body 6 on the principal plane thereof.

Abstract: A disc cartridge can effectively prevent dirt particles from entering the cartridge main body and improve the reliability of the operation of signal recording/reproduction on the disc-shaped recording medium. The disc cartridge comprises a cartridge main body 6 and a shutter member 35 having an upper shutter section 41 and a lower shutter section 42 adapted to openably close the recording/reproduction opening 17 and the drive opening 18 arranged outside the cartridge main body 6. A shutter cover 50 is arranged on the main surface of the cartridge main body 6 to cover the area of displacement of the lower shutter section 42. The shutter cover 50 is provided with an opening 51 slightly smaller than the lower shutter section 42 of the shutter member 35 at a position corresponding to the recording/reproduction opening 17 and the drive opening 18.