Abstract: A toner housing container includes: container body; conveying portion; pipe receiving port; and uplifting portion. Container body includes; protruding portion protruding from container body interior side of container opening portion to one end of container body; and shutter member moving between closing and opening positions to close and open container opening portion. Uplifting portion includes: uplifting wall surface extending from container body internal wall surface toward protruding portion; and curving portion curving to conform to protruding portion. Shutter member moves from closing to opening position upon push by conveying pipe. When toner housing container is mounted on toner conveying device, protruding portion is present between curving portion and toner receiving port of conveying pipe inserted and extends along shutter member moving region. Toner has bulk density of ?0.399 g/cm3 when toner housing container is shaken up-and-down 10 times at 25° C.

Abstract: A replenishing developer housing container according to the present invention includes: a container body housing a replenishing developer; a conveying portion; a pipe receiving port; and an uplifting portion, wherein the replenishing developer contains a toner and a carrier, wherein the container body includes a protruding portion protruding from a container body interior side of the container opening portion toward one end of the container body and a curving portion curving so as to conform to the protruding portion, wherein the uplifting portion includes an uplifting wall surface extending from an internal wall surface of the container body toward the protruding portion, wherein the protruding portion is provided such that when the replenishing developer housing container is mounted on the replenishing developer conveying device, the protruding portion is present between the curving portion and the replenishing developer receiving port of a conveying pipe being inserted.

Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.

Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.

Abstract: A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.

Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.

Abstract: A powder container includes: a housing unit that is horizontally elongated, that contains powder, and that has at least part thereof being deformable; and a discharging unit that is attached to one end of the housing unit in a longitudinal direction. The discharging unit includes a discharge opening through which the powder in the housing unit is discharged outside and a rotary shutter that is provided inside the discharge opening and that opens and closes the discharge opening by rotating about a rotating shaft that is arranged perpendicular to the longitudinal direction of the housing unit.

Abstract: Concrete compositions including a binder, water, a fine aggregate, a coarse aggregate and an admixture are provided. The binder is formed with a blast-furnace slag composition including 100 mass parts of a mixture of 80-95 mass % of blast-furnace slag fine particles with fineness 3000-13000 cm2/g and 5-20 mass parts of gypsum for a total of 100 mass % and 0.5-1.5 mass parts or 5-45 mass parts of an alkaline stimulant. Such concrete compositions can maintain superior operability by reducing the discharged amount of carbon dioxide and the decrease with time in fluidity and air content of the prepared concrete compositions. They can also reduce the drying shrinkage of the obtained hardened objects and allow the obtained hardened objects to manifest necessary strength.

Abstract: Slurry composition for ground improvement is obtained from cement, water and an admixture. The slurry composition cement is of a kind prepared by using blast-furnace slag cement of a specified type as the cement at a water/blast-furnace slag cement mass ratio of 40-250% and contains the admixture in an amount of 0.1-5 mass parts for 100 mass parts of the blast-furnace slag cement. The blast-furnace slag cement of the specified type contains blast-furnace slag fine particles with fineness 3000-13000 cm2/g in an amount of 60-80 mass % and portland cement in an amount of 20-40 mass % for a total of 100 mass %.

Abstract: A multi-functional admixture for concrete, having improved fluidity for providing hardened materials with improved early strength, smaller shrinkage rate, improved resistance against freezing and thawing action and slower carbonation speed, contains a specified kind of graft copolymer and/or its salt, a specified kind of (poly)alkyleneglycol monoalkyl ether and a specified kind of organic phosphate at specified ratios.

Abstract: A stopper member is included in a linear actuator comprising a stator assembly, a rotor assembly, an output shaft, and a stopper pin which is fixedly disposed at a frontward portion of the output shaft, and which is adapted to axially control the mode and amount of movement of the output shaft initiated by rotation of the rotor assembly. The stopper member is disposed fixedly with respect to the stator assembly and stops the axial movement of the output shaft without making it happen that the stopper pin which moves together with the output shaft touches the rotor assembly.

Abstract: A carrier and a dummy toner are stored in a developing unit of a process cartridge in a brand new status. A plurality of process cartridges corresponding to a plurality of color toners is used in common. The color toners are respectively supplied to the developing unit from toner supply units after the process cartridges in the brand new status are installed in installation sections in a main unit of an image forming apparatus.

Abstract: A process cartridge is provided with a frame body made up of at least first and second frame bodies that are movable relative to each other to form a space, a frame body positioning member positioning the first and second frame bodies, a latent image bearing member supported by the frame body and replaceable via the space formed by the first and second frame bodies, a developing unit supplying a developing agent to the latent image bearing member, and a developing position determining member. The developing position determining member is disposed at a non-overlapping position relative to the frame body positioning member, and positions the developing unit with respect to the frame body.

Abstract: A stopper member is included in a linear actuator comprising a stator assembly, a rotor assembly, an output shaft, and a stopper pin which is fixedly disposed at a frontward portion of the output shaft, and which is adapted to axially control the mode and amount of movement of the output shaft initiated by rotation of the rotor assembly. The stopper member is disposed fixedly with respect to the stator assembly and stops the axial movement of the output shaft without making it happen that the stopper pin which moves together with the output shaft touches the rotor assembly.

Abstract: A multi-functional admixture for simultaneously providing specified characteristics to hydraulic cement compositions such as concrete contains one or more of specified reaction mixtures obtained by specified two processes as well as partially or completely neutralized substances obtained from such a reaction mixture through a specified third process. The specified two processes include initiating a radical copolymerization process of a radical polymerizable monomer mixture containing maleic anhydride and a monomer of a specified kind in a non-aqueous system in the presence of a non-aqueous radical initiator and stopping the radical copolymerization reaction in its midst while the inversion rate of polymerization is at a specified level by adding water to the reaction system to thereby obtain a reaction mixture. The specified third process is for partially or completely neutralizing the reaction mixture.

Abstract: A high-strength hydraulic cement composition contains cement, fine aggregates, coarse aggregates, water and a specified admixture and has a unit amount of water in the range of 120-185 kg/m3. Water and the cement are contained at a ratio of 20-40% and the admixture is contained in the amount of 0.1-3.0 weight parts per 100 weight parts of the cement. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.

Abstract: An ultra high-strength hydraulic cement composition contains a binder, fine aggregates, coarse aggregates, an antifoaming agent, water and a specified admixture and has a unit amount of the binder in the range of 480-1800 kg/m3. Water and the binder are contained at a ratio of 10-25% and the admixture is contained in the amount of 0.2-3.5 weight parts per 100 weight parts of the binder. The binder may be cement or a mixture of cement and a microscopic powder admixture. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.

Abstract: A stopper member is included in a linear actuator comprising a stator assembly, a rotor assembly, an output shaft, and a stopper pin which is fixedly disposed at a frontward portion of the output shaft, and which is adapted to axially control the mode and amount of movement of the output shaft initiated by rotation of the rotor assembly. The stopper member is disposed fixedly with respect to the stator assembly and stops the axial movement of the output shaft without making it happen that the stopper pin which moves together with the output shaft touches the rotor assembly.

Abstract: A carrier and a dummy toner are stored in a developing unit of a process cartridge in a brand new status. A plurality of process cartridges corresponding to a plurality of color toners is used in common. The color toners are respectively supplied to the developing unit from toner supply units after the process cartridges in the brand new status are installed in installation sections in a main unit of an image forming apparatus.