Abstract: A recording medium transport and transfer belt includes at least a base material layer and a surface layer, in which a ratio (?s500/?v500) between surface resistivity ?s500 and volume resistivity ?v500 at an applied voltage of 500 V is 1.0 or more, and a difference (?s100??s500) between surface resistivity ?s100 at an applied voltage of 100 V and surface resistivity ?s500 at an applied voltage of 500 V is 0.3 or less.

Abstract: A transfer device includes an intermediate transfer belt that has an outer peripheral surface to which a toner image is to be transferred, a primary transfer device that has a primary transfer member performing primary transfer of a toner image formed on a surface of an image holder to the outer peripheral surface of the intermediate transfer belt, and a secondary transfer device that has a secondary transfer belt arranged in contact with the outer peripheral surface of the intermediate transfer belt and performing secondary transfer of the toner image transferred to the outer peripheral surface of the intermediate transfer belt to a surface of a recording medium, in which the intermediate transfer belt has an indentation modulus A of 5,000 MPa or more, and the secondary transfer belt has an indentation modulus B of 300 MPa or less and a tensile modulus C of 250 MPa or more.

Abstract: In an endless belt, the absolute value of an electrostatic capacitance C and the absolute value of an alternating-current resistance Z when an alternating voltage of 1 Vp-p is applied in a frequency range of from 10000 Hz to 0.1 mHz from a high frequency side satisfy Formula (1) below, and an alternating-current resistance Z0.63 when an alternating voltage of 1 Vp-p with a frequency of 0.63 Hz is applied satisfies Formula (2) below. Moreover, an alternating-current resistance Z630 when an alternating voltage of 1 Vp-p with a frequency of 630 Hz is applied satisfies Formula (3) below: log10 C?3.18×log10 Z?30.27;??Formula (1): 6.3?log10 Z0.63?6.9; and??Formula (2): 9.1?log10 Z630?9.9.

Abstract: Provided is a blue light-emitting material for organic light-emitting diode (OLED) comprising a phosphinine derivative and the OLED including the same. The light-emitting material for OLED of the present invention comprises the phosphinine derivative having an electron-withdrawing substituent at its C4 position of a phosphorus-containing six-membered ring. The OLED of the present invention has a pair of electrodes and organic layers including light-emitting layers between the pair of the electrodes, wherein the at least one light-emitting layer comprises an anthracene compound and the phosphinine derivative.

Abstract: The present invention relates to a high-strength aluminum alloy thick plate composed of an aluminum alloy including a prescribed quantity of Si, Mg, Ti, Fe, and the balance Al. The thick plate has a material structure in which an area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in a plate thickness central portion is 0.45% or less; and an area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in a region of 20 mm±1.5 mm from a plate surface in a plate thickness direction is 1.2 times or more and 3.0 times or less the area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in the plate thickness central portion. The aluminum alloy thick plate has sufficient strength and good uniformity of strength in the plate thickness direction, and can be manufactured by cooling it after a solution treatment, so that suitable temperature difference occurs between a plate thickness central portion and a surface, and then performing a quenching treatment.

Abstract: The present invention relates to a high-strength aluminum alloy thick plate composed of an aluminum alloy including a prescribed quantity of Si, Mg, Ti, Fe, and the balance Al. The thick plate has a material structure in which an area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in a plate thickness central portion is 0.45% or less; and an area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in a region of 20 mm±1.5 mm from a plate surface in a plate thickness direction is 1.2 times or more and 3.0 times or less the area ratio of Mg2Si having circle equivalent diameters of 3 ?m or more in the plate thickness central portion. The aluminum alloy thick plate has sufficient strength and good uniformity of strength in the plate thickness direction, and can be manufactured by cooling it after a solution treatment, so that suitable temperature difference occurs between a plate thickness central portion and a surface, and then performing a quenching treatment.

Abstract: An aluminum alloy plate for a magnetic disk substrate with a flat and smooth ground surface, a production method by which the aluminum alloy plate can be produced at low cost and a magnetic disk are shown. An aluminum alloy plate for a magnetic disk substrate which comprises an aluminum alloy containing Mg: 3.0 to 8.0 mass % (hereinafter %), Cu: 0.005 to 0.150%, Zn: 0.05 to 0.60%, Cr: 0.010 to 0.300%, Fe: 0.001 to 0.030%, Si: 0.001 to 0.030%, (Ti+V+Zr): 0.0010 to 0.0100%, B: 0.0001 to 0.0010% with a balance being Al and inevitable impurities, wherein the density of a Ti—V—B—Zr-based inclusion having a maximum diameter exceeding 5 ?m is 0 piece/6000 mm2 and the density of a Ti—V—B—Zr-based inclusion having a maximum diameter of 3 to 5 ?m is 1 piece/6000 mm2 or less; a production method thereof; and a method for producing a magnetic disk.

Abstract: An aluminum alloy plate for a magnetic disk substrate with a flat and smooth ground surface, a production method by which the aluminum alloy plate can be produced at low cost and a magnetic disk are shown. An aluminum alloy plate for a magnetic disk substrate which comprises an aluminum alloy containing Mg: 3.0 to 8.0 mass % (hereinafter %), Cu: 0.005 to 0.150%, Zn: 0.05 to 0.60%, Cr: 0.010 to 0.300%, Fe: 0.001 to 0.030%, Si: 0.001 to 0.030%, (Ti+V+Zr): 0.0010 to 0.0100%, B: 0.0001 to 0.0010% with a balance being Al and inevitable impurities, wherein the density of a Ti—V—B—Zr-based inclusion having a maximum diameter exceeding 5 ?m is 0 piece/6000 mm2 and the density of a Ti—V—B—Zr-based inclusion having a maximum diameter of 3 to 5 ?m is 1 piece/6000 mm2 or less; a production method thereof; and a method for producing a magnetic disk.

Abstract: Disclosed is a cellulose nonwoven fabric containing cellulose fibers having a maximum fiber diameter of not more than 1500 nm and a crystallinity determined by solid state NMR techniques of not less than 60%. The porosity of the cellulose nonwoven fabric is not less than 40% and not more than 99%.

Abstract: Disclosed is a cellulose nonwoven fabric containing cellulose fibers having a maximum fiber diameter of not more than 1500 nm and a crystallinity determined by solid state NMR techniques of not less than 60%. The porosity of the cellulose nonwoven fabric is not less than 40% and not more than 99%.

Abstract: A hinge device for use in a foldable device is provided which allows the cover member to be pivoted clockwise and counterclockwise so that the cover member can be used in a variety of ways and also has an excellent functionality. A cellphone using such a hinge device is also provided. A hinge device connecting a body member 13 and a cover member 12 comprises: open-close hinge units 3, 4 to open and close the cover member 12 and to hold the open cover member 12 at a first open position where a cellphone operation can be performed; and a pivotal hinge unit 4 secured to the body member 13 and activated when the cover member 12 is opened beyond the first open position, the pivotal hinge unit 4 being adapted to pivot the cover member 12 clockwise or counterclockwise and to hold the cover member 12 at a pivotal position 90 or 180 degrees clockwise or counterclockwise from the body member.

Abstract: A thermosensitive plate material for lithographic plate formation according to the present invention includes a substrate (1) and a thermosensitive layer (2) formed thereon. The thermosensitive layer (2) includes an organic polymer (4) containing lipophilic portion forming particles (3). In the thermosensitive layer (2), a surface portion (21) having a thickness of 0.1 ?m or more does not contain the lipophilic portion forming particles (3) but contains a metal oxide (5). The surface portion (21) includes a hydrophilic organic polymer (41), which has been cured with the metal oxide (5). A portion (22) of the thermosensitive layer (2) on the substrate side contains the lipophilic portion forming particles (3). The organic polymer (42) constituting the base portion (22) need not be the hydrophilic organic polymer.

Abstract: The invention provides inexpensively a pierce die by omitting a large pad at the time of executing a piercing process and pressing a work at only a minimum portion required for the piercing process, thereby reducing the portion to be machined as much as possible. There is provided a punch stripper comprising a pierce punch, a punch retainer holding the pierce punch, a cover which covers the pierce punch so as to protrude a leading end portion of the pierce punch, and is fastened by screws to the punch retainer, a stripper which is outward fitted to the pierce punch, presses the work before piercing the work by the pierce punch, takes out the pierce punch from the work after piercing, is received within the cover so as to move forward and backward, and forms a stop flange in a rear end, and a coil spring which is received within the cover so as to bring the stripper into contact with the stop flange, and energizes the stripper toward an outer side.

Abstract: A hinge device for use in a foldable device is provided which allows the cover member to be pivoted clockwise and counterclockwise so that the cover member can be used in a variety of ways and also has an excellent functionality. A cellphone using such a hinge device is also provided. A hinge device connecting a body member 13 and a cover member 12 comprises: open-close hinge units 3, 4 to open and close the cover member 12 and to hold the open cover member 12 at a first open position where a cellphone operation can be performed; and a pivotal hinge unit 4 secured to the body mepmher 13 and activated when the cover member 12 is opened beyond the first open position, the pivotal hinge unit 4 being adapted to pivot the cover member 12 clockwise or counterclockwise and to hold the cover member 12 at a pivotal position 90 or 180 degrees clockwise or counterclockwise from the body member.

Abstract: An object of this invention is to provide a hinge device excellent in durability and a foldable cellular phone using the hinge device. The hinge device includes: a cylindrical case 7 having a bottom formed on one end; a disk member 6 contained in the bottom of this case, and rotating integrally with this case; a cam member 4 contained in the case, wherein at a closed position and an open position of a cover body 12, an engagement state in which the cam member is engaged with the disk member is maintained to fixed the cover body 12, and the engagement state is cancelled by rotation caused by an opening or a closing operation of the cover body 12; an urging means 3 for causing one end to press the cam member in a direction of the disk member, and for maintaining the engagement state in which the cam member is engaged with the disk member; and a stop 2 that prevents the other end of the urging means from moving in an axial direction, and that rotates integrally with the cam member.

Abstract: A sheet-shaped molded laminate includes a laminated skin member including a decorative face, and a resin base material integrally injection molded on a face of the laminated skin member placed on an opposite side to the decorative face of the laminated skin member. The laminated skin member includes a foamed layer with a density equal to or greater than 0.04 g/cm3, a sheet-shaped decorative skin member bonded to one face of the foamed layer, and a sheet-shaped backing layer bonded to the other face of the foamed layer. Before the laminated skin member and the resin base material are integrally molded, an elastic modulus of the laminated skin member in a warping deformation preventive direction is equal to or smaller than 196N/25 mm (width of a test piece of the laminated skin member: 25 mm) with the laminated skin member being stretched by 33%.

Abstract: A thermosensitive plate material for lithographic plate formation according to the present invention includes a substrate (1) and a thermosensitive layer (2) formed thereon. The thermosensitive layer (2) includes an organic polymer (4) containing lipophilic portion forming particles (3). In the thermosensitive layer (2), a surface portion (21) having a thickness of 0.1 &mgr;m or more does not contain the lipophilic portion forming particles (3) but contains a metal oxide (5). The surface portion (21) includes a hydrophilic organic polymer (41), which has been cured with the metal oxide (5). A portion (22) of the thermosensitive layer (2) on the substrate side contains the lipophilic portion forming particles (3). The organic polymer (42) constituting the base portion (22) need not be the hydrophilic organic polymer.

Abstract: There are provided an upper shaft clutch mechanism 140, a bobbin 22 including a slit 39, a horizontal holder 4 including an inner holder 18 and a blade tip 42, a bobbin driving member 11, bobbin driving member moving means 94 for moving the bobbin driving member 11 to freely advance or retreat between two positions having a separating position and a connecting position, a thread holding and catching member 48 including an upper thread holding portion 59, an upper thread engaging portion 60 and a thread position regulating portion 58 which are always set in a retreat position and are set in an entry position during a thread winding operation, thread holding and catching member moving means 53 for moving the thread holding and catching member 48 to freely advance or retreat between two positions having a retreat position and an entry position, and a thread winding operation control portion 193 for controlling the operation of each portion during the thread winding operation.

Abstract: In an embroidery sewing machine having a lower thread winding device, when the non-lower thread state of the bobbin is detected by a residual amount sensor, a sewing machine motor is stopped to detect and recognize the size of the embroidering frame of an embroidering device by means of a frame size sensor and the embroidering frame is moved corresponding to the size to position the corner of a workpiece held in the embroidering frame under a needle. Then, an extra sewing operation is carried out over the corner to consume the lower thread remaining in the bobbin, and subsequently, it is decided whether or not the embroidering frame is moved by a distance required for completely extracting the lower thread from the bobbin (an amount of the residual lower thread is detected when the non-thread state is detected by the residual amount sensor).

Abstract: There are provided an upper shaft clutch mechanism 140, a bobbin 22 including a slit 39, a horizontal holder 4 including an inner holder 18 and a blade tip 42, a bobbin driving member 11, bobbin driving member moving means 94 for moving the bobbin driving member 11 to freely advance or retreat between two positions having a separating position and a connecting position, a thread holding and catching member 48 including an upper thread holding portion 59, an upper thread engaging portion 60 and a thread position regulating portion 58 which are always set in a retreat position and are set in an entry position during a thread winding operation, thread holding and catching member moving means 53 for moving the thread holding and catching member 48 to freely advance or retreat between two positions having a retreat position and an entry position, and a thread winding operation control portion 193 for controlling the operation of each portion during the thread winding operation.