Abstract: Provided is an electrophotographic photosensitive member including: a support; and a photosensitive layer, wherein the support has a surface formed of Al and/or an Al alloy, wherein the surface of the support comprises Al crystal grains having: (?) a plane at ?15° or more and less than +15° with respect to a {001} orientation; (?) a plane at ?15° or more and less than +15° with respect to a {101} orientation; and (?) a plane at ?15° or more and less than +15° with respect to a {111} orientation, and wherein the ratio of an area occupied by the Al crystal grain having the (?) is 10% or less, and the value of the ratio of an area occupied by the Al crystal grain having the (?) to an area occupied by the Al crystal grain having the (?) is more than 4/6 and less than 6/4.

Abstract: An electrophotographic photosensitive member comprises: a support having a cylindrical shape; and a photosensitive layer, wherein the support has a surface formed of Al and/or an Al alloy, and includes Al crystal grains having: (?) a plane at ?15° or more and less than +15° with respect to a {001} orientation; (?) a plane at ?15° or more and less than +15° with respect to a {101} orientation; and (?) a plane at ?15° or more and less than +15° with respect to a {111} orientation, and wherein a ratio of an area occupied by the Al crystal grain having the (?) to a total area of the surface of the support is 10% or less, and a ratio of an area occupied by the Al crystal grain having the (?) to the total area of the surface of the support is more than 10%.

Abstract: Provided is an electrophotographic photosensitive member including: a support having a cylindrical shape; and a photosensitive layer, wherein the support has a surface formed of Al and/or an Al alloy, the surface of the support includes Al crystal grains having: (?) a plane at ?15° or more and less than +15° with respect to a {001} orientation; (?) a plane at ?15° or more and less than +15° with respect to a {101} orientation; and (?) a plane at ?15° or more and less than +15° with respect to a {111} orientation, a ratio of an area occupied by the Al crystal grain having the (?) to a total area of the surface of the support is 10% or less, and a ratio of an area occupied by the Al crystal grain having the (?) to the total area of the surface of the support is more than 10%.

Abstract: The electrophotographic photosensitive member includes: a support; and a photosensitive layer, wherein a surface of the support is formed of Al and/or an Al alloy, wherein the surface of the support includes Al crystal grains having: (?) a plane at ?15° or more and less than +15° with respect to a {001} orientation; (?) a plane at ?15° or more and less than +15° with respect to a {101} orientation; and (?) a plane at ?15° or more and less than +15° with respect to a {111} orientation, and wherein a ratio of an area occupied by Al crystal grains each having the (?) to a total area of the surface of the support is more than 10% and 50% or less, and a ratio of an area occupied by Al crystal grains each having the (?) or the (?) to the remaining area is 80% or more.

Abstract: The present invention provides an electrophotographic photosensitive member which has a substrate, a photoconductive layer and a surface layer formed from hydrogenated amorphous silicon carbide in this order. The average value of the carbon content (C/(C+Si)) of the surface layer formed from the hydrogenated amorphous silicon carbide is set at 0.90 or more and less than 1.00, and the average value of the hydrogen content (H/(H+C+Si)) is set at 0.40 or less; and when the average value of the ratios of the sum of a Si—O bond and an O—Si—O bond in the outermost surface region that constitutes a range within a depth of 5 nm or less from the outermost surface of the surface layer is represented by a, and an average value of the silicon content (Si/(C+Si)) is represented by b, 0.015?a*b?0.090 holds.

Abstract: An average value of a hydrogen content ratio of a surface layer made of hydrogenated amorphous carbon is set to be 0.40 or less and a maximum value of an sp2 bonding ratio in an outermost surface region of the surface layer made of the hydrogenated amorphous carbon is set to be 0.50 or less.

Abstract: An average value of a hydrogen content ratio of a surface layer made of hydrogenated amorphous carbon is set to be 0.40 or less and a maximum value of an sp2 bonding ratio in an outermost surface region of the surface layer made of the hydrogenated amorphous carbon is set to be 0.50 or less.

Abstract: The present invention provides an electrophotographic photosensitive member which has a substrate, a photoconductive layer and a surface layer formed from hydrogenated amorphous silicon carbide in this order. The average value of the carbon content (C/(C+Si)) of the surface layer formed from the hydrogenated amorphous silicon carbide is set at 0.90 or more and less than 1.00, and the average value of the hydrogen content (H/(H+C+Si)) is set at 0.40 or less; and when the average value of the ratios of the sum of a Si—O bond and an O—Si—O bond in the outermost surface region that constitutes a range within a depth of 5 nm or less from the outermost surface of the surface layer is represented by a, and an average value of the silicon content (Si/(C+Si)) is represented by b, 0.015?a*b?0.090 holds.

Abstract: A stepped suspension load beam is described, such as for a hard disk drive, in which the main body is composed of a proximal portion that lies in a first plane, an intermediate portion between the proximal portion and a distal portion and that lies in a second plane that angles upward from the proximal portion, and a distal portion that lies in a third plane that angles back down from the intermediate portion, thereby forming a load beam stepped in the longitudinal direction. Further, the proximal portion may be formed to taper in at a first angle, the intermediate portion formed to taper in at a second angle that is less than the first angle, and the distal portion formed to taper in at a third angle greater than the first and second angles, thereby forming a load beam stepped in the transverse direction.

Abstract: A canister shutoff valve has a canister connection port for communicating with a canister, a vapor line connection port connected to a vapor line, and a purge line connection port connected to a purge line. When the canister shutoff valve is de-energized and thus is open, the canister connection port, the vapor line connection port and the purge line connection port communicate with one another, allowing fuel evaporative gas to flow into and out of the canister. When the canister shutoff valve is energized and thus is closed, the canister connection port is blocked and only the vapor line connection port and the purge line connection port communicate with each other, thereby preventing the fuel evaporative gas from flowing into and out of the canister.

Abstract: A magnetic-head supporting mechanism includes a slider having a chamfered bleed portion, a mounting portion on which the slider is mounted, a flexible finger portion extending in a longitudinal direction and supporting the mounting portion, a load beam extending in the longitudinal direction that connects at an end to a positioning mechanism, and that applies a load to the slider, and a regulating member extending from the load beam in the longitudinal direction for preventing change of an attitude of the slider when an angular attitude of the slider exceeds a predetermined angle. The regulating member extends over and above the flexible finger portion and over and above the slider and has an end in the longitudinal direction at a position approximately equal to an end of the flexible finger portion in the longitudinal direction.

Abstract: Embodiments of the present invention relate to a method for manufacturing a magnetic disk unit, the method including a step of writing servo data into the magnetic disk while introducing a low-density gas having a lower density than air into the enclosure. In one embodiment, the magnetic disk unit is comprised of a magnetic disk, a magnetic head, and a voice coil motor which are accommodated in the hermetically sealed enclosure. The enclosure has a gas inlet and a gas outlet, which are provided respectively with filters attached thereto.

Abstract: Embodiments of the present invention relate to a method for manufacturing a magnetic disk unit, the method including a step of writing servo data into the magnetic disk while introducing a low-density gas having a lower density than air into the enclosure. In one embodiment, the magnetic disk unit is comprised of a magnetic disk, a magnetic head, and a voice coil motor which are accommodated in the hermetically sealed enclosure. The enclosure has a gas inlet and a gas outlet, which are provided respectively with filters attached thereto.

Abstract: A magnetic-head supporting mechanism includes a slider having a chamfered bleed portion, a mounting portion on which the slider is mounted, a flexible finger portion extending in a longitudinal direction and supporting the mounting portion, a load beam extending in the longitudinal direction that connects at an end to a positioning mechanism, and that applies a load to the slider, and a regulating member extending from the load beam in the longitudinal direction for preventing change of an attitude of the slider when an angular attitude of the slider exceeds a predetermined angle. The regulating member extends over and above the flexible finger portion and over and above the slider and has an end in the longitudinal direction at a position approximately equal to an end of the flexible finger portion in the longitudinal direction.

Abstract: A magnetic disc apparatus having a magnetic disc on which information is recorded, a magnetic head and a magnetic head supporting mechanism. The magnetic head supporting mechanism includes a slider having the magnetic head mounted thereon, a load beam having an arm mounting portion and a pivot, and a gimbal having a mounting portion on which the slider is mounted, two flexible finger portions spaced from the load beam and supporting the mounting portion so that the slider is rotatable with respect to the pivot, and a base end portion which is joined to the load beam. The load beam has two openings formed therein in proximity to the pivot which enable viewing of a back surface of the mounting portion which is opposite to a surface of the mounting portion of the gimbal on which the slider is mounted.

Abstract: A magnetic disc apparatus having a magnetic disc on which information is recorded, a magnetic head and a magnetic head supporting mechanism. The magnetic head supporting mechanism includes a slider having the magnetic head mounted thereon, a load beam having an arm mounting portion and a pivot, and a gimbal having a mounting portion on which the slider is mounted, two flexible finger portions spaced from the load beam and supporting the mounting portion so that the slider is rotatable with respect to the pivot, and a base end portion which is joined to the load beam. The load beam has two openings formed therein in proximity to the pivot which enable viewing of a back surface of the mounting portion which is opposite to a surface of the mounting portion of the gimbal on which the slider is mounted.

Abstract: A magnetic disc apparatus having a magnetic head supporting mechanism which includes a slider, a load beam having a spring portion and a pivot, and a gimbal having a mounting portion on which the slider is mounted. The gimbal has flexible finger portions spaced from the load beam which support the mounting portion so that the slider is rotatable with respect to the pivot, and a base end portion which is joined to the load beam. The load beam has elongation portions extending with respect to both sides of the pivot and being connected together in a proximity of a tip end portion of the flexible finger portions so as to be spaced from the pivot of the gimbal and for delimiting a window. The pivot is provided on a projection portion of the load beam which projects in the window from a spring portion side of the window.

Abstract: A first film plate 20 and a second film plate 40, each made of flexible resin film, are attached to a top surface and a bottom surface of a key top 30 made of mold-resin, respectively, so as to cover the key top 30. The first film plate 20 is pressed upward to form a recessed portion 23, the key top 30 is molded within this recessed portion 23. The second film plate 40 is arranged on the bottom surface of the key top 30. All of the first film plate 20, the key top 30, and the second film plate 40 are transparent. Decorative layers 21 and 41 are formed on the first film plate 20 and the second film plate 40, respectively.

Abstract: A magnetic disc apparatus having a magnetic head supporting mechanism which includes a slider, a load beam having a spring portion and a pivot, and a gimbal having a mounting portion on which the slider is mounted. The gimbal has flexible finger portions spaced from the load beam which support the mounting portion so that the slider is rotatable with respect to the pivot, and a base end portion which is joined to the load beam. The load beam has elongation portions extending with respect to both sides of the pivot and being connected together in a proximity of a tip end portion of the flexible finger portions so as to be spaced from the pivot of the gimbal and for delimiting a window. The pivot is provided on a projection portion of the load beam which projects in the window from a spring portion side of the window.

Abstract: A first film plate 20 and a second film plate 40, each made of flexible resin film, are attached to a top surface and a bottom surface of a key top 30 made of mold-resin, respectively, so as to cover the key top 30. The first film plate 20 is pressed upward to form a recessed portion 23, the key top 30 is molded within this recessed portion 23. The second film plate 40 is arranged on the bottom surface of the key top 30. All of the first film plate 20, the key top 30, and the second film plate 40 are transparent. Decorative layers 21 and 41 are formed on the first film plate 20 and the second film plate 40, respectively.