Abstract: According to the present invention, a siliceous film forming composition, which is capable of filling trenches having narrow widths and high aspect ratios and forming a thick film, can be provided. A siliceous film forming composition comprising: (a) a block copolymer comprising a linear and/or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon, and (b) a solvent.

Abstract: A centrifugal compressor includes: an impeller; a main flow passage which receives the impeller and extends in a rotation axis direction of the impeller; an auxiliary flow passage which includes an upstream communication portion communicating to the main flow passage and a downstream communication portion communicating to the main flow passage at closer to the impeller than the upstream communication portion, and extends in a rotation direction of the impeller; a plurality of opening/closing portions which each have an opening portion and are arranged in the auxiliary flow passage; and a drive unit configured to move at least one of the plurality of opening/closing portions in the rotation direction.

Abstract: An object is to provide a stator coil having a corner portion with less start points for partial discharge while reducing loss. A stator coil having a conductor bar includes, at a corner portion thereof: a first insulating layer covering an outer periphery of the conductor bar; an electric conductor having one end electrically connected to the conductor bar on a distal end side of the corner portion, and another end placed on an outer surface of the first insulating layer; a first conductive layer covering an outer periphery of the first insulating layer and the electric conductor located on the outer surface of the first insulating layer; a second insulating layer covering an outer periphery of the first conductive layer; and a second conductive layer covering an outer periphery of the second insulating layer.

Abstract: To provide a siliceous film manufacturing composition that can fill a narrow and a high aspect ratio trench and can produce a thick siliceous film. [Means for Solution] The present invention provides a siliceous film manufacturing composition that comprises, (a) a block copolymer having a linear and/or cyclic polysilane backbone block with or more silicon atoms and a polycarbosilane backbone block with or more silicon atoms, and (b) a solvent.

Abstract: A centrifugal compressor includes a compressor housing; a compressor impeller; a first throttling member and a second throttling member; a contacting portion provided on one end of a body of each of the first throttling member and the second throttling member; and an opposing portion provided on the other end of the body of each of the first throttling member and the second throttling member, the opposing portions being spaced apart from each other in a circumferential direction and parts of the opposing portions facing each other in a rotational axis direction when both of the first throttling member and the second throttling member are in a protruding position.

Abstract: A centrifugal compressor includes: a housing including an intake flow path; a compressor impeller disposed in the intake flow path; a circulation flow path provided radially outside the intake flow path and connected to the intake flow path at a downstream position that radially faces the compressor impeller and at an upstream position that is upstream of the downstream position with respect to the compressor impeller; and a movable member disposed at the upstream position and including a body portion having a protruding portion, the movable member being movable between a protruding position where the circulation flow path is closed by the body portion and the protruding portion is located in the intake flow path, and a retracted position where the protruding portion is retracted from the intake flow path and the circulation flow path is connected to the intake flow path.

Abstract: A centrifugal compressor includes: a housing including an intake flow path; a compressor impeller disposed in the intake flow path; an accommodation chamber formed upstream of the compressor impeller in the housing; a movable member disposed in the accommodation chamber and configured to be movable between a retracted position where the movable member is retracted from the intake flow path and a protruding position where the movable member protrudes from the accommodation chamber into the intake flow path, the protruding position being located closer to the intake flow path with respect to the retracted position, and a contacting portion and a non-contacting portion provided on an accommodation chamber opposing surface of the accommodation chamber, the accommodation chamber opposing surface being positioned upstream of the movable member, the contacting portion being contactable with the movable member, the non-contacting portion being non-contactable with the movable member.

Abstract: According to the present invention, a siliceous film forming composition, which is capable of filling trenches having narrow widths and high aspect ratios and forming a thick film, can be provided. A siliceous film forming composition comprising: (a) a block copolymer comprising a linear and/or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon, and (b) a solvent.

Abstract: A centrifugal compressor includes: an impeller including a main body portion and a plurality of blades provided on an outer peripheral surface of the main body portion; an intake flow path facing the impeller in a rotational axis direction; and a throttling mechanism including a throttling member provided in the intake flow path, a ratio obtained by dividing a distance between an outer peripheral end of a leading edge of the blade and the throttling member by a maximum protruding height of the throttling member protruding from an inner wall surface of the intake flow path is equal to or less than 4.

Abstract: To provide an amorphous silicon forming composition, which has high affinity with a substrate, is excellent in filling properties, and is capable of forming a thick film. [Means for Solution] An amorphous silicon forming composition comprising: (a) a block copolymer comprising a linear and/or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon, wherein at least one silicon in the block A and at least one silicon in the block B are connected by a single bond and/or a crosslinking group comprising silicon, and (b) a solvent.

Abstract: The present invention provides a method for producing a novel amorphous silicon sacrifice film and an amorphous silicon forming composition capable of filling trenches having a high aspect ratio to form an amorphous silicon sacrifice film that is excellent in affinity with a substrate. A method for producing an amorphous silicon sacrifice film, comprising (i) polymerizing a cyclic polysilane comprising 5 or more silicon or a composition comprising the cyclic polysilane by light irradiation and/or heating to form a polymer having a polysilane skeleton, (ii) applying an amorphous silicon forming composition comprising said polymer having a polysilane skeleton, polysilazane and a solvent above a substrate to form a coating film, and (iii) heating the coating film in a non-oxidizing atmosphere.

Abstract: Provided is a centrifugal compressor, including: an impeller including blades; a main flow passage including a narrowing portion, which is formed on a front side of the impeller and has a diameter smaller than a diameter of each of the blades; an auxiliary flow passage, which has one end communicating to the main flow passage on the impeller side with respect to the narrowing portion and another end communicating to the main flow passage on a side away from the impeller with respect to the narrowing portion; and a movable portion which is movable between a first position and a second position, the second position being different from the first position in position in a rotation axis direction and a rotation direction of the impeller and in opening degree of the auxiliary flow passage.

Abstract: [Problem] To provide a novel polymer, which fills trenches having narrow widths and high aspect ratios and can form a thicker film. [Means for Solution] The block copolymer comprises a linear or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon.

Abstract: An image reading device according to the present disclosures installed in an image forming apparatus includes a document placing table having an image reader, and an auto document feeder (ADF) rotatably supported by the document placing table. The ADF is configured to rotatable between a closed position where an upper surface of the document placing table is uncovered and an opened position where the upper surface is covered. The ADF includes a document tray, a document discharge tray arranged at a lower position than the document tray with a space, a front wall fixed to a front side of the document tray. A cutout part is formed on the front wall, a front side of the space is opened through the cutout part. The ADF further includes a hand grip provided to an upper edge of the cutout part, and the hand grip is used to lift up the ADF from the closed position toward the opened positon.

Abstract: A centrifugal compressor includes: a compressor housing in which an intake passage is formed; a compressor impeller provided in the intake passage; an actuator that causes a rod to linearly move in a direction intersecting with a rotation axis direction of the compressor impeller; a connection member connected to the rod; a throttle member including a protruding portion; a connection shaft extending in the rotation axis direction and connecting the connection member and the throttle member; and a rotation shaft extending in a direction parallel to the connection shaft and serving as a rotation center of the throttle member.

Abstract: An image forming apparatus includes a discharging tray for supporting a sheet, an operation panel and a supporting member. The sheet is discharged toward a sheet discharging direction that is a direction toward which the sheet is discharged. The operation panel is located at a position which is different from the position of the discharging tray in a width direction orthogonal to the sheet discharging direction and above the discharging tray. The supporting member is disposed at the discharging tray and capable of supporting the discharged sheet with the discharging tray. A front end portion of the supporting member is located above an upper surface of the discharging tray. At least a part of the front end portion of the supporting member overlaps the operation panel when viewed in the width direction.

Abstract: Provided is a centrifugal compressor, including: a movable member which is movable between a first position and a second position, the first position being a position at which an opening degree of an auxiliary flow passage arranged more on an outer diameter side than a main flow passage becomes a first opening degree, the second position being a position at which an opening degree of the auxiliary flow passage becomes a second opening degree smaller than the first opening degree; and a linear actuator configured to drive the movable member in a rotation axis direction of the impeller.

Abstract: In a projection material for mechanical plating, a steel particle is used as a core, and the surrounding surface thereof is coated with a zinc alloy in which the content of Al is more than 5% by mass but equal to or less than 16% by mass, the content of Mg is equal to or more than 5.5% by mass but equal to or less than 15% by mass and the remaining portion is Zn and an impurity, and the content of Fe is equal to or more than 3% by mass but equal to or less than 80% by mass. In this way, the corrosion resistance of a zinc-based coating itself formed in mechanical plating is remarkably enhanced without dependence on protective coating formation treatment such as chromate treatment.

Abstract: An image reading device includes: a supply tray including a movable plate which moves from a first position to a second position according to a decrease in the number of sheet to be supported by a supply tray; a discharge guide including a discharge opening for discharging the sheet conveyed by a conveyance guide to a discharge tray, and moves from a third position to a fourth position according to the decrease in the number of the sheets to be supported by the supply tray; a first drive source and a first drive train that transmits a drive force from the first drive source to a discharge roller. The discharge roller discharges a sheet through a discharge opening by receiving the drive force from the first drive source.

Abstract: A pressing drive mechanism, which drives a secondary transfer roller to press an intermediate transfer belt, includes: a motor that generates a driving force for driving the secondary transfer roller in a driving direction; a transmission mechanism that transmits the driving force to the secondary transfer roller to drive the secondary transfer roller in the driving direction; a hardware processor that controls the driving force of the motor to control a position in the driving direction of the secondary transfer roller; and a biasing member that biases the secondary transfer roller in a direction of pressing the intermediate transfer belt. The hardware processor controls the driving force of the motor in synchronization with a timing at which a front end of a sheet reaches the secondary transfer roller; and drives the secondary transfer roller to a predetermined pressing position by using a biasing force by the biasing member.