Abstract: A heat regenerating material particle of an embodiment contains a heat regenerating substance having a maximum value of specific heat at a temperature of 20 K or less is 0.3 J/cm3·K or more, and one metal element selected from the group consisting of calcium (Ca), magnesium (Mg), beryllium (Be), strontium (Sr), aluminum (Al), iron (Fe), copper (Cu), nickel (Ni), and cobalt (Co). The heat regenerating material particle includes a first region and a second region, the second region is closer to an outer edge of the heat regenerating material particle than the first region, and the second region has a higher concentration of the metal element than the first region.

Abstract: A developing device includes a frame, a cylindrical developer carrying member, and a regulating member including a contact portion. When a position of the contact portion where a maximum of a pressure distribution of the contact portion to the developer carrying member with respect to a rotational direction of the developer carrying member is indicated is a reference position, the contact portion includes a first region positioned upstream of the reference position and a second region positional downstream of the reference position with respect to the rotational direction. The contact portion has surface roughness smaller in the first region than in the second region. The surface roughness in the second region is 20% or less of an average particle size of toner particles contained in the developer.

Abstract: The flow rate control unit 1 is comprised with each of the flow rate control devices 11 connected to (juxtaposedly mounted on) the manifold 2 by the joint 91 interposed between each of the flow rate control devices 11 and the manifold 2. Each of the flow rate control devices 11 can be attached to or detached from the manifold 2 by manually operating (attaching/detaching) the clip 93 without using a tool. Because there is no need to secure space to insert a tool between the adjacent flow rate control devices 11, the mounting pitch between the adjacent flow rate control devices 11 (joints 91) can be reduced to the minimum, allowing miniaturization of the flow rate control unit 1.

Abstract: A developer used in a developing apparatus equipped with a metal blade includes a toner base particle and external additives, the external additives including a silica particle with a particle diameter of 5 nm or more and 25 nm or less and an inorganic spacer particle with a particle diameter of 50 nm or more and 150 nm or less, and an area occupancy of the silica particle on a surface of the toner base particle is 40% or more.

Abstract: A mold temperature control system that controls temperature of mold in a diecasting machine, includes temperature sensors that detect mold temperatures of individual parts of the mold, flow controllers that control instantaneous flow rates of cooling water that cools the parts of the mold, and a control device that acquires the mold temperatures detected by the temperature sensors, computes deviations between target mold temperature and the current mold temperatures at every production cycle, converts the deviations into flow rate values, and transmits the flow rate values to the flow controllers.

Abstract: The magnetic wedge of embodiments is a magnetic wedge used for a rotating electrical machine and includes magnetic bodies having a planar structure having a principal plane. The principal planes of the magnetic bodies are disposed approximately perpendicularly to the air-gap surface between a stator and a rotor of a rotating electrical machine. The magnetic bodies have differences in the axial direction magnetic permeability in the axial direction of the rotating electrical machine, the rotational direction magnetic permeability in the direction of rotation, and the diametric direction magnetic permeability in the direction of the diameter.

Abstract: A heat regenerating material particle according to an embodiment includes a plurality of heat regenerating substance particles having a maximum volume specific heat value of 0.3 J/cm3·K or more at a temperature of 20 K or lower, and a binder bonding the heat regenerating substance particles, the binder containing water insoluble resin. The heat regenerating material particle has a particle diameter of 500 ?m or less.

Abstract: A cold storage material, which has a large specific heat and a small magnetization in an extremely low temperature region and has satisfactory manufacturability, is provided, and a method for manufacturing the same is provided. Further, a refrigerator having high efficiency and excellent cooling performance is provided by filling this refrigerator with the above-described cold storage material. Moreover, a device incorporating a superconducting coil capable of reducing influence of magnetic noise derived from a cold storage material is provided. The cold storage material of embodiments is a granular body composed of an intermetallic compound in which the ThCr2Si2-type structure 11 occupies 80% by volume or more, and has a crystallite size of 70 nm or less.

Abstract: A ball valve includes a ball that has a passage hole and is rotatably supported, a ball packing that is made of polyimide and is in contact with an outer circumferential face of the ball, and a ball retainer that holds the ball packing, and a spring-loaded lip seal that is installed between the ball packing and the ball retainer and has a metallic spring fit inside a seal case made of a resin.

Abstract: A developer bearing member including: a rotational shaft; and an elastic layer on an outer circumference surface of the rotational shaft, developer being borne on a surface of the elastic layer, wherein the elastic layer is configured such that a load per unit area of a contact portion between one surface of a flat glass plate and the surface of the elastic layer is to be 5.8 N/mm2 or more, in a state that the one surface of the flat glass plate being parallel with an axis direction of the rotational shaft and the one surface of the flat glass plate coming into contact with the surface of the elastic layer with a predetermined penetration level, and wherein a ten-point average roughness Rzjis on the surface of the elastic layer is greater than a volume-average particle diameter of a particle of the developer.

Abstract: An object is to provide a flow rate control device that can suppress a manufacturing cost and greatly reduce burdens of setting and maintenance. A flow rate control device 11 of the invention is comprised with a flow rate adjusting valve 21 that is installed in a flow path 13, a flow rate measurement part 41 that measures a flow rate of a fluid flowing through the flow path 13, a controller 61 that controls opening degrees of the flow rate adjusting valve 21 based on a measurement result of the flow rate measurement part 41, and a pressure deficiency detecting function that detects pressure deficiency when a limit sensor 246 (an opening detecting sensor) that detects the opening of the flow rate adjusting valve 21 detects the opening degrees are full.

Abstract: An image forming apparatus includes an image bearing member, a charging member, an exposure unit which performs first exposure to form a non-image portion potential on the electrically charged surface of the image bearing member, and second exposure to form an image portion potential thereon, a developing member, a charging voltage application unit, a current detection unit which detects a current flowing from the image bearing member to the charging member, and a control unit which controls the exposure unit and the charging voltage application unit, wherein, in a case where a current value detected in a predetermined charging voltage application state is a second current value larger than a first current value, the control unit controls the exposure unit to perform image formation with a first exposure amount smaller than that in a case where the detected current value is the first current value.

Abstract: An image forming apparatus using a contact charging method includes a control unit capable of executing cleaning in a post-rotation step at the end of a job and in an inter-image step during execution of the job. The cleaning involves moving toner adhering to a charging member from the charging member to an image bearing member. The job is a series of operations started by a predetermined start instruction and involving forming an image on one or more recording materials and outputting the one or more recording materials. When an instruction to start the next job is input during execution of cleaning in the post-rotation step, the control unit stops the cleaning in the middle of the execution, starts the next job, and adjusts timing for executing subsequent cleaning on the basis of information relating to the amount of cleaning executed before being stopped in the middle of the execution.

Abstract: Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 ?m or more, a length of 1 ?m or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 ?m inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

Abstract: A developer bearing member including: a rotational shaft; and an elastic layer on an outer circumference surface of the rotational shaft, developer being borne on a surface of the elastic layer, wherein the elastic layer is configured such that a load per unit area of a contact portion between one surface of a flat glass plate and the surface of the elastic layer is to be 5.8 N/mm2 or more, in a state that the one surface of the flat glass plate being parallel with an axis direction of the rotational shaft and the one surface of the flat glass plate coming into contact with the surface of the elastic layer with a predetermined penetration level, and wherein a ten-point average roughness Rzjis on the surface of the elastic layer is greater than a volume-average particle diameter of a particle of the developer.

Abstract: A plurality of flaky magnetic metal particles of embodiments is a plurality of flaky magnetic metal particles having an average thickness of from 10 nm to 100 ?m, each of the flaky magnetic metal particles having a flat surface; a magnetic metal phase containing at least one first element selected from the group consisting of Fe, Co, and Ni; and the difference in coercivity on the basis of direction within the flat surface, the average value of the ratio of the average length within the flat surface with respect to the thickness being from 5 to 10,000, and the flaky magnetic metal particles including a flaky magnetic metal particle having either a crack in the direction of the thickness of the flaky magnetic metal particle, the crack having a depth equivalent to 10% or more of the thickness of the flaky magnetic metal particle and a width shorter than the depth, or a crack in a direction parallel to the flat surface, the crack having a length equivalent to 10% or more of the thickness of the flaky magnetic me

Abstract: A heat regenerating material particle of an embodiment contains a heat regenerating substance having a maximum value of specific heat at a temperature of 20 K or less is 0.3 J/cm3·K or more, and one metal element selected from the group consisting of calcium (Ca), magnesium (Mg), beryllium (Be), strontium (Sr), aluminum (Al), iron (Fe), copper (Cu), nickel (Ni), and cobalt (Co). The heat regenerating material particle includes a first region and a second region, the second region is closer to an outer edge of the heat regenerating material particle than the first region, and the second region has a higher concentration of the metal element than the first region.

Abstract: Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 ?m or more, a length of 1 ?m or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 ?m inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

Abstract: A flowmeter that achieves both high reliability and a low cost is provided. The flowmeter includes an impeller that is rotatably supported in a flow path, a magnetic sensor that detects a magnetic change associated with a rotation of the impeller, and a magnet that applies a magnetic field to the magnetic sensor, wherein the impeller is formed of a magnetic material that is not magnetized, and the magnetic sensor and the magnet are arranged outside the flow path.

Abstract: An object is to provide a flow rate control device that can suppress a manufacturing cost and greatly reduce burdens of setting and maintenance. A flow rate control device 11 of the invention is comprised with a flow rate adjusting valve 21 that is installed in a flow path 13, a flow rate measurement part 41 that measures a flow rate of a fluid flowing through the flow path 13, a controller 61 that controls opening degrees of the flow rate adjusting valve 21 based on a measurement result of the flow rate measurement part 41, and a pressure deficiency detecting function that detects pressure deficiency when a limit sensor 246 (an opening detecting sensor) that detects the opening of the flow rate adjusting valve 21 detects the opening degrees are full.