Abstract: A communication system includes a user terminal that transmits and receives a message, and a server device that manages a public key and a private key, wherein the user terminal includes first processing circuitry configured to, when transmitting the message to another user terminal, acquire a public key corresponding to identification information about a recipient of the message, and encrypt the message or a file attached to the message, using the acquired public key, transmit, to the another user terminal, a message obtained by encrypting the message or the file attached to the message, and when receiving the message from the another user terminal, request the server device to decrypt the message or the file attached to the message, and receive the decrypted message or file from the server device, and the server device includes second processing circuitry configured to generate a private key corresponding to the identification information.

Abstract: A three-dimensionally shaped article production member is a member used in a three-dimensionally shaped article production apparatus for producing a three-dimensionally shaped article by stacking a layer formed using a composition containing particles. The member is placed on a stage and comes in contact with the layer, and has a portion provided with pores in a contact surface with the layer.

Abstract: Provided is a gas sensor device including a plurality of sensitive members and a measuring instrument. The plurality of sensitive members have respective sensitive materials that react to molecules present in the air and targeted for measurement. The measuring instrument independently measures the respective reactions of the plurality of sensitive members to the molecules.

Abstract: An aroma chemical presentation apparatus includes an encapsulation body supporting unit that supports an aroma chemical encapsulation body in which an aroma chemical material is encapsulated, an action body that is brought into contact with the aroma chemical encapsulation body to cause the aroma chemical material in the aroma chemical encapsulation body to be emitted, and a derivation fan that forms an air flow in a predetermined direction for deriving the emitted aroma chemical material.

Abstract: Methods and apparatus provide for controlling an operating device, where the operating device includes: (i) a grip part to be gripped by a user; and (ii) an operation part for activation by a finger of the user gripping the grip part, and where the operation part includes: (i) a movable part capable of moving from a resting position toward another position in response to a force applied by the finger of the user, (ii) a biasing element operating to urge the movable part toward the resting position, and (iii) a motorized assembly operating to receive a drive signal and apply a force to the movable part in an opposite direction of the force applied by the finger of the user.

Abstract: An apparatus includes a housing having a holding portion for gripping by a hand of a user; a manipulation block having a first side that includes at least one of: (i) one or more pressable buttons, and (ii) a stick button, and having a second side that includes a trigger button; and at least one of: (i) a thumb sensor block, located proximate to the first side of the manipulation block, and operable to detect the presence of the thumb of the hand of the user when the holding portion is gripped by the user, (ii) a first finger sensor, located on the trigger button, and operable to detect the presence of the at least one finger of the hand of the user when the holding portion is gripped by the user, and (iii) a second finger sensor, located proximate to both the second side of the manipulation block and the holding portion of the housing, and operable to detect the presence of at least one of a middle finger, a ring finger, and a pinky finger of the hand of the user when the holding portion is gripped by the us

Abstract: A nematic liquid crystal composition having a high ?n and a high ?? in a liquid crystal material that enables greater phase control over electromagnetic waves in the microwave or millimeter wave range, and a liquid crystal element, a sensor, a liquid crystal lens, an optical communication device, and an antenna including the nematic liquid crystal composition. Specifically, a liquid crystal composition containing one or two or more compounds represented by general formula (i) in the specification and one or two or more compounds represented by general formula (ii) in the specification, and having a high ?n and a high ??.

Abstract: Methods and apparatus provide for a control unit; and an operating device including: (i) operation button to be activated by touch of a user, (ii) a first vibration mechanism for vibrating the operation button, and (iii) a second vibration mechanism for vibrating a main body of the operating device, where the control unit controls the first vibration mechanism and the second vibration mechanism.

Abstract: Methods and apparatus provide for controlling an operating device, wherein the operating device includes: (i) a grip part to be gripped by a user; and (ii) an operation part for activation by a finger of the user gripping the grip part, where the operation part includes: (i) a movable part capable of moving from a resting position toward another position in response to a force applied by the finger of the user, (ii) a biasing element operating to urge the movable part toward the resting position, (iii) a sensor operating to measure the force applied by the finger of the user to the movable part and produce a sensing signal therefrom, and (iv) a motorized assembly operating to receive a drive signal, and in response, apply an amount of force to the movable part in opposition to the force applied by the finger of the user, and where the drive signal is a variable dependent on variations in the sensing signal, such that the amount of force applied to the movable part in opposition to the force applied by the fin

Abstract: Provided is an information processing device including a light source control section that changes intensity of light of a light source which irradiates eyes of a user, a reception section that receives, from an event driven vision sensor including a sensor which generates an event signal when detecting a change in intensity of a light to be incident thereon, the event signal indicating a position and a time of the change in intensity of the light reflected by the eyes of the user, and a visual line detection section that identifies the light source corresponding to the event signal on the basis of a relative positional relation among the eyes of the user, the light source, and the vision sensor, and of the event signal generated at the same time that control is carried out by the light source control section, to detect a visual line of the user.

Abstract: Provided are a substrate that can exert an anchoring force causing liquid crystal molecules to be vertically aligned and a liquid crystal display device. The substrate of the present invention is to be used in contact with a liquid crystal composition containing liquid crystal molecules and an alignment aid having a polar group and having the function of causing the liquid crystal molecules to be aligned spontaneously. The substrate includes an insulating film having a contact surface to be in contact with the liquid crystal composition. The static contact angle of water on the contact surface at 25° C. is 70° or less and/or the surface free energy of the contact surface is 50 mN/m or more. The substrate is preferably a substrate in direct contact with the liquid crystal composition with no alignment film therebetween.

Abstract: An operation device has a movable portion movable between a first position and a second position. The movable portion is operated by a user while the operation device is gripped by the user. The operation device receives information identifying a control mode and control information defined for each control mode as an instruction related to control of a tactile force sense, and controls the tactile force sense presented to the movable portion by using the received control information in the control mode identified by the received information.

Abstract: Provided are light-emitting particles having high stability while having perovskite-type semiconductor nanocrystals having excellent light-emitting properties, a method for producing the same, and a light-emitting particle dispersion, an ink composition, and a light-emitting element containing such light-emitting particles. The method for producing light-emitting particles of the present invention includes a step of preparing parent particles 91 each having hollow particles 912 each having an inner space 912a and pores 912b communicating with the inner space 912a, and perovskite-type semiconductor nanocrystals 911 contained in the inner space 912a and having light-emitting properties, and a step of coating the surface of each parent particle 91 with a hydrophobic polymer to form a polymer layer 92.

Abstract: An operation device has a movable portion movable between a first position and a second position. The movable portion is operated by a user while the operation device is gripped by the user. The operation device receives information identifying a control mode and control information defined for each control mode as an instruction related to control of a tactile force sense, and controls the tactile force sense presented to the movable portion by using the received control information in the control mode identified by the received information.

Abstract: Provided are light-emitting particles having high stability while having perovskite-type semiconductor nanocrystals having excellent light-emitting properties, a method for producing the same, and a light-emitting particle dispersion, an ink composition, and a light-emitting element containing such light-emitting particles. The method for producing light-emitting particles of the present invention includes a step of preparing parent particles 91 composed of perovskite-type semiconductor nanocrystals 911 having light-emitting properties and a surface layer 912 which is composed of ligands coordinated on the surface of the semiconductor nanocrystal 911 and in which the ligand molecules form a siloxane bond with each other, and a step of forming a polymer layer 93 by coating the surface of the parent particle 91 with a hydrophobic polymer.

Abstract: Provided are a substrate that can exert an anchoring force causing liquid crystal molecules to be vertically aligned and a liquid crystal display device. The substrate of the present invention is to be used in contact with a liquid crystal composition containing liquid crystal molecules and an alignment aid having a polar group and having the function of causing the liquid crystal molecules to be aligned spontaneously. The substrate includes an insulating film having a contact surface to be in contact with the liquid crystal composition. The static contact angle of water on the contact surface at 25° C. is 70° or less and/or the surface free energy of the contact surface is 50 mN/m or more. The substrate is preferably a substrate in direct contact with the liquid crystal composition with no alignment film therebetween.

Abstract: An apparatus includes a housing having a holding portion for gripping by a hand of a user; a manipulation block having a first side that includes at least one of: (i) one or more pressable buttons, and (ii) a stick button, and having a second side that includes a trigger button; and at least one of: (i) a thumb sensor block, located proximate to the first side of the manipulation block, and operable to detect the presence of the thumb of the hand of the user when the holding portion is gripped by the user, (ii) a first finger sensor, located on the trigger button, and operable to detect the presence of the at least one finger of the hand of the user when the holding portion is gripped by the user, and (iii) a second finger sensor, located proximate to both the second side of the manipulation block and the holding portion of the housing, and operable to detect the presence of at least one of a middle finger, a ring finger, and a pinky finger of the hand of the user when the holding portion is gripped by the us

Abstract: The present invention relates to a liquid crystal composition for a light-scattering liquid crystal device shown in FIG. 1 containing a polymerizable compound selected from the group consisting of compounds represented by the following general formula (1) as a first component and containing a compound having a negative dielectric anisotropy as a second component, a light-scattering liquid crystal device using the liquid crystal composition, and a smart window using the light-scattering liquid crystal device. A reverse mode type light-scattering liquid crystal device can have excellent transparency when no voltage is applied and a reduced driving voltage by the liquid crystal composition of the present invention.

Abstract: An information processing apparatus estimates a position of interest and/or a direction of interest in which a user viewing a video displayed by a display apparatus is potentially interested, the position of interest and the direction of interest being other than a position to which a line of sight of the user is directed, and changes content of the video to be displayed by the display apparatus according to a result of the estimation.

Abstract: Methods and apparatus provide for causing a device to present a sense of force against depressing of a button in response to receiving an input initiated by the user of a sense-of-force presentation start position in said predetermined movable range, and to store the sense-of-force presentation start position in a memory in response to the input initiated by the user; acquiring a depress amount of said button; receiving the sense-of-force presentation start position from the memory; and instructing the presentation of the sense of force against depressing of said button when said depress amount reaches said sense-of-force presentation start position.