Abstract: A fuel supply device includes a flange unit and a pump unit. The flange unit includes a flange main body for closing an opening formed in an upper wall of a fuel tank. The pump unit includes a joint member that is connected to the flange main body so that both components may be movable relative to each other in the vertical direction. The interval in the vertical direction between the flange main body and the joint member is restricted from going below a minimum vertical interval. The minimum interval occurs when a stand-off portion provided as part of the flange main body and a connecting plate portion provided as part of the joint member come into mutual contact with each other and abut each other in the vertical direction.

Abstract: A fuel filter device includes a bag-shaped filter member filtering fuel that is drawn into a fuel pump, an inner frame member retaining the filter member in an expanded state, and a mounting member connected to the inner frame member and serving to communicate an internal space of the filter member with an outside. A valve chamber is defined by the inner frame member and the mounting member, and a check valve serving to prevent backflow of fuel is disposed in the valve chamber. The check valve includes a flat-plate shaped valve body having elasticity. The check valve opens against its weight when the fuel pump is operated, and the check valve closes due to its weight when the operation of the fuel pump is stopped.

Abstract: When a fuel tank is inclined at a negative slope and tilted to the right side, it may be tilted such that a position of a mesh member is relatively higher than a position of a vapor outlet of a vapor outlet passage. In this case, air may enter into a leak passage from an outlet port such that interfacial tension is generated in the mesh member. The interface between fuel and air is present at the mesh member, and the interfacial tension generated at the interface serves to prevent air from entering into a discharge pipe.

Abstract: A flange main body as a cover member for a fuel tank includes a cover plate for closing an opening of the fuel tank, an accommodating tubular portion formed as part of the cover plate so as to extend through the plate in a plate thickness direction, and a rib formed at the cover plate. The accommodating tubular portion and the rib are formed to be non-contiguous.

Abstract: An object is to provide a polymer having a high tumor/blood ratio. The present invention provides a polymer represented by the following formula (P1): wherein in the formula (P1), R represents any of a residue derived from a polymerization initiator, or a functional group; A may not be present, and when present, A represents any of a low-molecular compound, a dye, a reporter molecule, a target-binding molecule, a polymer or D; L represents a linker and L may not be present; n1 represents an integer of 1 or more; and D represents a dye backbone of a dye having absorption in the near-infrared region.

Abstract: A fuel supply device has a cover member which is attached to an opening of a fuel tank, a pump unit provided with a pump, and a connecting portion for connecting the cover member and the pump unit. The fuel supply device has a connecting shaft which is formed on either one of the connecting portion or the pump unit, and a connecting hole which is formed on the other. The fuel supply device has a guide mechanism which can guide the pump unit. The guide mechanism includes a first guide portion formed at the connecting portion and a second guide portion formed at the pump unit. One of the first guide portion or the second guide portion includes a protruding portion which protrudes in a position spaced apart from the connecting shaft. The other guide portion is formed to restrict a movable range of the protruding portion.

Abstract: A photoacoustic device comprises a light source configured to generate first and second lights; an irradiation unit configured to generate a first acoustic wave from an object including a contrast agent by irradiating the object with the first light, and then bleach the contrast agent by irradiating the object with the second light and generate a second acoustic wave from the object by irradiating the object with the first light after bleaching; a receiving unit configured to output a first signal upon receiving the first acoustic wave and output a second signal upon receiving the second acoustic wave; and an acquisition unit configured to acquire first information based on the first signal, and acquire second information based on the second signal.

Abstract: A fuel supply device includes a fuel pump for delivering fuel within the fuel tank to the outside and a sub-tank having a temporary storage region capable of temporarily storing the fuel. The sub-tank includes an inflow opening to allow the fuel to flow into the sub-tank under its own weight. The temporary storage region includes a top part positioned above the inflow opening.

Abstract: To provide a compound having high T/B and a contrast agent for optical imaging. The compound has a molecular weight of a specific range, the compound in which two polyethylene glycols are bonded to a specific cyanine pigment through a linker. The present invention provides a compound which has a high T/B and which can be used as a contrast agent capable of imaging a tumor portion with high contrast.

Abstract: A fuel supply device includes a flange unit configured to be attached to an upper wall of a fuel tank to close an opening of the fuel tank, a pump unit configured to be disposed within the fuel tank, and a coupling mechanism moveably coupling the pump unit to the flange unit in a vertically slidable manner. The coupling mechanism includes a fixed-side rail member having a rail portion extending vertically from the flange unit, and a movable-side rail member having a channel-groove shaped rail groove extending from the pump unit. The channel-groove shaped rail groove is slidably engaged with the rail portion of the fixed-side rail member. A recess having a semi-circular cross section is formed at a corner of the rail groove of the movable-side rail member.

Abstract: A fuel supply device includes a cover member which is attached to an opening of a fuel tank, a pump unit comprising a pump, and a connecting portion for connecting the cover member and the pump unit. The pump unit is connected to the connecting portion so as to be relatively movable to the cover member. When the fuel supply device is attached to the fuel tank, an engagement portion provided at a lower portion of the pump unit abuts the connecting portion such that via the engagement portion the connecting portion presses the pump unit against the fuel tank.

Abstract: When a fuel tank is inclined at a negative slope and tilted to the right side, it may be tilted such that a position of a mesh member is relatively higher than a position of a vapor outlet of a vapor outlet passage. In this case, air may enter into a leak passage from an outlet port such that interfacial tension is generated in the mesh member. The interface between fuel and air is present at the mesh member, and the interfacial tension generated at the interface serves to prevent air from entering into a discharge pipe.

Abstract: A fuel supply device includes a cover, a base including a base main body, and a connecting portion configured to connect the cover and the base. The base main body and the connecting portion are connected by a connecting shaft comprising a shaft portion and a bulge portion, a connecting hole formed so as to continuously extend an engagement region and an insertion region, and a stopper piece capable of limiting a movable range of the shaft portion located within the engagement region towards the insertion region. A guide mechanism is provided for guiding the connecting shaft to move so that at least one part of the stopper piece is positioned between the bulge portion and the base portion when a predetermined amount of force is applied to the connecting shaft.

Abstract: A fuel supply device includes a flange unit and a pump unit. The flange unit includes a flange main body for closing an opening formed in an upper wall of a fuel tank. The pump unit includes a joint member that is connected to the flange main body so that both components may be movable relative to each other in the vertical direction. The interval in the vertical direction between the flange main body and the joint member is restricted from going below a minimum vertical interval. The minimum interval occurs when a stand-off portion provided as part of the flange main body and a connecting plate portion provided as part of the joint member come into mutual contact with each other and abut each other in the vertical direction.

Abstract: A photoacoustic apparatus comprises a light source; an irradiation unit configured to radiate light from the light source to an object that contains a contrast agent; a receiving unit configured to receive acoustic waves generated when the contrast agent absorbs the light radiated by the irradiation unit and output an electrical signal; a correction processing unit configured to correct a signal strength of the electrical signal, based on a temporal change in a concentration of the contrast agent contained in the object; and an acquiring unit configured to acquire characteristics information on the object, based on the electrical signal that has been corrected by the correction processing unit.

Abstract: A fuel supply device has a cover member which is attached to an opening portion of a fuel tank and a pump unit comprising a pump. The cover member and pump unit are connected via a connecting portion where the pump unit is rotatably connected to the connecting portion. Further, the fuel supply device includes a fuel residual amount detection device which is attached to the pump unit and configured to detect the residual amount of fuel. The fuel residual amount detection device includes a gauge main body to which electric wirings are connected, an arm portion which is movably mounted relative to the gauge main body and a float which is attached to a leading end of the arm portion. The float is positioned above a lower terminal end of the base portion when the cover member is held and lifted while the pump unit rotates with respect to the connecting portion.

Abstract: The present invention provides contrast agents for photoacoustic imaging which exhibit high degrees of accumulation in tumor and low degrees of retention in the blood and can be administered into the blood. The contrast agents for photoacoustic imaging include a conjugate of a dye and a polyethyleneglycol represented by Formula (1), (5), (6), or (7) and an additive represented by Formula (301).

Abstract: A flange main body as a cover member for a fuel tank includes a cover plate for closing an opening of the fuel tank, an accommodating tubular portion formed as part of the cover plate so as to extend through the plate in a plate thickness direction, and a rib formed at the cover plate. The accommodating tubular portion and the rib are formed to be non-contiguous.

Abstract: The present invention provides contrast agents for photoacoustic imaging which exhibit high degrees of accumulation in tumor and low degrees of retention in the blood and can be administered into the blood. The contrast agents for photoacoustic imaging include a conjugate of a dye and a polyethyleneglycol represented by Formula (1), (5), (6), or (7) and an additive represented by Formula (301).

Abstract: A fuel supply device includes a flange unit configured to be attached to an upper wall of a fuel tank to close an opening of the fuel tank, a pump unit configured to be disposed within the fuel tank, and a coupling mechanism moveably coupling the pump unit to the flange unit in a vertically slidable manner. The coupling mechanism includes a fixed-side rail member having a rail portion extending vertically from the flange unit, and a movable-side rail member having a channel-groove shaped rail groove extending from the pump unit. The channel-groove shaped rail groove is slidably engaged with the rail portion of the fixed-side rail member. A recess having a semi-circular cross section is formed at a corner of the rail groove of the movable-side rail member.