Abstract: A chuck device for holding a plate material workpiece supplied to a machine tool without deforming the workpiece is provided. A housing has a workpiece contact surface arranged to face workpiece holding claws, and when holding of a workpiece is released, a plurality of rods integrally swings so that the workpiece holding claws are moved away from the workpiece contact surface of the housing and moved away from each other, and when holding the workpiece, after the plurality of rods integrally swing so that the workpiece holding claws are brought close to the workpiece contact surface of the housing and brought close to each other, the plurality of rods moves integrally in parallel with the forward/backward moving direction of a drive body to bring the workpiece holding claws into contact with the workpiece.

Abstract: An information intermediating apparatus in an information transaction system including an information providing apparatus, an information acquiring apparatus and the information intermediating apparatus connected to a communication network, includes: a first receiver that receives second information, of first and second information necessary for restoring transaction object information, and first feature information indicating a feature of the first information; a second receiver that receives second feature information from the information acquiring apparatus, the second feature information being calculated from the first information transmitted to the information acquiring apparatus from the information providing apparatus; a feature information determination unit that determines whether an identity is present between the first feature information and the second feature information; and a transmitter that transmits the second information to the information acquiring apparatus, when the feature information d

Abstract: An information processing system 100 comprising at least one first node 1, second nodes 2 for providing a public key change assistance service, and a blockchain 3, wherein the first node 1 comprises a new public key creation unit 151, a second node group selection unit 152, an old and new key information request unit 153, a draft contract preparation unit 154, a signature request unit 155, a first signature execution unit 156, and a registration unit 157; each second node 2 comprises an old and new key information transmission unit 251, a second signature execution unit 252, and a draft contract return unit 253; the draft contract preparation unit 154 randomly determines the order of new public keys as transmission destinations; and the signature request unit 155 and the first signature execution unit 156 perform signature request and execution, respectively, so that the order of the nodes that sign a draft transaction contract is random.

Abstract: An information processing system 100 includes a client node 1 and an issuing node 2 for issuing a coupon having terms of use Q1. The client node 1 includes a use request unit 155 that requests to use the coupon by presenting user data D held by a user of the client node 1. The issuing node 2 includes: a use request verification unit 253 for verifying whether the information included in the user data D satisfies the terms of use Q1 upon the use request from the use request unit 155; and a use authorization unit 254 that authorizes the client node 1 to use the coupon when the information satisfies the terms of use Q1.

Abstract: An information processing system 100 includes a client node 1 and an issuing node 2 for issuing a coupon having terms of use Q1. The client node 1 includes a use request unit 155 that requests to use the coupon by presenting user data D held by a user of the client node 1. The issuing node 2 includes: a use request verification unit 253 for verifying whether the information included in the user data D satisfies the terms of use Q1 upon the use request from the use request unit 155; and a use authorization unit 254 that authorizes the client node 1 to use the coupon when the information satisfies the terms of use Q1.

Abstract: An information processing system 100 comprising at least one first node 1, second nodes 2 for providing a public key change assistance service, and a blockchain 3, wherein the first node 1 comprises a new public key creation unit 151, a second node group selection unit 152, an old and new key information request unit 153, a draft contract preparation unit 154, a signature request unit 155, a first signature execution unit 156, and a registration unit 157; each second node 2 comprises an old and new key information transmission unit 251, a second signature execution unit 252, and a draft contract return unit 253; the draft contract preparation unit 154 randomly determines the order of new public keys as transmission destinations; and the signature request unit 155 and the first signature execution unit 156 perform signature request and execution, respectively, so that the order of the nodes that sign a draft transaction contract is random.

Abstract: An information processing system 100 includes a first node 1 that stores data; a second node 2 that receives the data from the first node 1; at least one storage node 3; and a blockchain 4. The first node 1 includes a first identification information generation unit 152, a template acquisition unit 153, a contract document preparation unit 154, a contract document release unit 155, and a storage request unit 156, wherein a template is provided with an address area in which a data-receiving address of a node that wishes to obtain the data is entered. The second node 2 includes a contract document selection unit 251, an address entry unit 252, a signature unit 253, and a registration unit 254. The at least one storage node 3 includes a storage execution unit 353, a contract completion determination unit 354, and a data transmission unit 355.

Abstract: An information processing system including multiple memory devices and a processor configured to select one node group associated with a time point included in a time period between a current time point and a time point before a predetermined time including the current time point among multiple node groups each associated with one of multiple time points, and store the N pieces of distributed data one to each of N memory devices included in the selected node group. The information processing system carries out a restoring process on at least one of the multiple node groups, and if the restoring results in failure, carries out the restoring process on a second node group associated with a time point before a time point associated with the first node group that causes the failure among the plurality of node groups.

Abstract: An information intermediating apparatus in an information transaction system including an information providing apparatus, an information acquiring apparatus and the information intermediating apparatus connected to a communication network, includes: a first receiver that receives second information, of first and second information necessary for restoring transaction object information, and first feature information indicating a feature of the first information; a second receiver that receives second feature information from the information acquiring apparatus, the second feature information being calculated from the first information transmitted to the information acquiring apparatus from the information providing apparatus; a feature information determination unit that determines whether an identity is present between the first feature information and the second feature information; and a transmitter that transmits the second information to the information acquiring apparatus, when the feature information d

Abstract: An image processing device includes: an acquisition unit that acquires a probability distribution of luminance of a pixel in a plurality of perspective images including the luminance of the pixel which is superposition of luminance components resulting from respective objects, based on an occurrence frequency of a perspective image in which the luminance of the pixel has respective values of a plurality of values; a distribution estimation unit that estimates a mixture distribution indicating the acquired probability distribution; a component estimation unit that estimates a component corresponding to a smallest expectation value distribution of which an expectation value is the smallest among a plurality of partial distributions that form the estimated mixture distribution, and forming at least a portion of the luminance of the pixel; a removal unit that removes the estimated component from the luminance of the pixel included in the perspective image.

Abstract: A resin tapping member used for a method of separating and recovering that enables a polymer to be separated and recovered from a polymer-containing liquid during or after a polymerization reaction at a high quality, high efficiency, and high processing capacity. The resin tapping member for preventing clogging of a screen is used in separating and recovering a polymer obtained by a polymerization reaction in a solvent. The resin tapping member has a weight reduction percentage of 3 wt. % or less after continuous separating and recovering of a polymer from a polymer-containing liquid for 48 hours.

Abstract: An information processing system including multiple memory devices and a processor configured to select one node group associated with a time point included in a time period between a current time point and a time point before a predetermined time including the current time point among multiple node groups each associated with one of multiple time points, and store the N pieces of distributed data one to each of N memory devices included in the selected node group. The information processing system carries out a restoring process on at least one of the multiple node groups, and if the restoring results in failure, carries out the restoring process on a second node group associated with a time point before a time point associated with the first node group that causes the failure among the plurality of node groups.

Abstract: An image processing device includes: an acquisition unit that acquires a probability distribution of luminance of a pixel in a plurality of perspective images including the luminance of the pixel which is superposition of luminance components resulting from respective objects, based on an occurrence frequency of a perspective image in which the luminance of the pixel has respective values of a plurality of values; a distribution estimation unit that estimates a mixture distribution indicating the acquired probability distribution; a component estimation unit that estimates a component corresponding to a smallest expectation value distribution of which an expectation value is the smallest among a plurality of partial distributions that form the estimated mixture distribution, and forming at least a portion of the luminance of the pixel; a removal unit that removes the estimated component from the luminance of the pixel included in the perspective image.

Abstract: To aim provide a software update apparatus including an install module group composed of a plurality of install modules. Each of the install modules has a function of receiving, from an external server, a replacement protection control module to be used for updating a protection control module having a function of verifying whether a predetermined application has been tampered with. Each of the install modules simultaneously running is verified by at least another one of the install modules simultaneously running, as to whether the install module has a possibility of performing malicious operations. If any of the install modules is verified as having the possibility of performing the malicious operations, any another one of the install modules that is verified as not having the possibility revokes the any install module verified as having the possibility.

Abstract: A resin tapping member used for a method of separating and recovering that enables a polymer to be separated and recovered from a polymer-containing liquid during or after a polymerization reaction at a high quality, high efficiency, and high processing capacity. The resin tapping member for preventing clogging of a screen is used in separating and recovering a polymer obtained by a polymerization reaction in a solvent. The resin tapping member has a weight reduction percentage of 3 wt. % or less after continuous separating and recovering of a polymer from a polymer-containing liquid for 48 hours.

Abstract: A distributing device for generating private information correctly even if shared information is destroyed or tampered with. A shared information distributing device for use in a system for managing private information by a secret sharing method, including: segmenting unit that segments private information into a first through an nth pieces of shared information; first distribution unit that distributes the n pieces of shared information to n holding devices on a one-to-one basis; and second distribution unit that distributes the n pieces of shared information to the n holding devices so that each holding device holds an ith piece of shared information distributed by the first distribution unit, as well as a pieces of shared information being different from the ith piece of shared information in ordinal position among n pieces of shared information, “i” being an integer in a range from 1 to n.

Abstract: A distributing device for generating private information correctly even if shared information is destroyed or tampered with. A shared information distributing device for use in a system for managing private information by a secret sharing method, including: segmenting unit that segments private information into a first through an nth pieces of shared information; first distribution unit that distributes the n pieces of shared information to n holding devices on a one-to-one basis; and second distribution unit that distributes the n pieces of shared information to the n holding devices so that each holding device holds an ith piece of shared information distributed by the first distribution unit, as well as a pieces of shared information being different from the ith piece of shared information in ordinal position among n pieces of shared information, “i” being an integer in a range from 1 to n.

Abstract: A distributing device for generating private information correctly even if shared information is destroyed or tampered with. A shared information distributing device for use in a system for managing private information by a secret sharing method, including: segmenting unit that segments private information into a first through an nth pieces of shared information; first distribution unit that distributes the n pieces of shared information to n holding devices on a one-to-one basis; and second distribution unit that distributes the n pieces of shared information to the n holding devices so that each holding device holds an ith piece of shared information distributed by the first distribution unit, as well as a pieces of shared information being different from the ith piece of shared information in ordinal position among n pieces of shared information, “i” being an integer in a range from 1 to n.

Abstract: A signal-processing device, which processes transparent images each expressed by transparent superimposition of a target such as an affected part and a background, includes a transparent image acquiring unit that acquires the transparent images each including the target at a plurality of times; a calculating unit that calculates a component of the transparent image originating from the target and a component of the transparent image originating from the background at a given time t among the plurality of times in association with estimated values of at least one of a distribution originating from the target and a distribution originating from the background and that evaluates consistency with the transparent images; and an updating unit that updates the estimated values of at least one of a distribution originating from the target and a distribution originating from the background at the time t based on the evaluation result.

Abstract: Provided is a tampering monitoring system that can identify a monitoring module that has been tampered with among a plurality of monitoring modules. A management apparatus is provided with an acquisition unit that acquires a new monitoring module that has not been tampered with, a generation unit that generates a decoy monitoring module by modifying the acquired monitoring module, a transmission unit that transmits the decoy monitoring module to the information security device and causes the information security device to install the decoy monitoring module therein, a reception unit that receives from the information security device, after the decoy monitoring module has been installed, monitoring results generated by the monitoring modules monitoring other monitoring modules, and a determination unit that identifies, by referring to the received monitoring results, a monitoring module that determines the decoy monitoring module to be valid and determines the identified monitoring module to be invalid.