Abstract: A communication server includes a processor that processes voice data and that is configured to: function as a voice filter that extracts a voice component of a specific person; provide input voice data to the voice filter, the input voice data being received from a first terminal apparatus; and transmit output voice data to a second terminal apparatus different from the first terminal apparatus, the output voice data including a voice component that is output from the voice filter.

Abstract: An information processing apparatus includes a processor configured to receive a first e-mail, generate a document including content in a body of the first e-mail, generate address information for accessing the document, send a second e-mail to an e-mail address designated as an addressee of the first e-mail, the second e-mail including the address information and only a portion of the content in the body of the first e-mail, and in a case where an address indicated by the address information is accessed by a user of the addressee, display the document on a display of the addressee user.

Abstract: A ball screw has a nut formed with a helical ball rolling groove on its inner circumference. A screw shaft is formed with a helical ball rolling groove on its inner circumference. The screw shaft is inserted into the nut. A number of balls are rollably contained within a ball rolling passage formed by oppositely arranged helical ball rolling grooves of the nut and the screw shaft, respectively. The nut is made of case hardened steel. The ball rolling groove is formed by cutting and surface hardening, by vacuum carburizing hardening, without any after-processing.

Abstract: A ball screw has a nut formed with a helical ball rolling groove on its inner circumference. A screw shaft is formed with a helical ball rolling groove on its inner circumference. The screw shaft is inserted into the nut. A number of balls are rollably contained within a ball rolling passage formed by oppositely arranged helical ball rolling grooves of the nut and the screw shaft, respectively. The nut is made of case hardened steel. The ball rolling groove is formed by cutting and surface hardening, by vacuum carburizing hardening, without any after-processing.

Abstract: An electrically driven linear actuator has an actuator body with a ball screw to convert a rotational motion to a linear motion. An electric motor provides the rotational motion. A gear mechanism transmits rotational motion of the electric motor to the ball screw of the actuator body. A position holding mechanism holds the position of the ball screw of the actuator body by engaging teeth, specifically a space between adjacent teeth, of a gear forming the gear mechanism.

Abstract: An electrically driven linear actuator (1) has an electric motor with a ball screw mechanism (3 and 4) connected to an output shaft (2a) of the electric motor (2), via a power transmitting mechanism (10 and 12) to convert a rotary motion of the electric motor (2) to a linear motion of an object member to be controlled by the actuator (1). Housing members (5, 6 and 8) contain the ball screw mechanism (3 and 4) and the power transmitting mechanism (10 and 12). Stroke end members (14 and 14), of a ball screw shaft (4) or a ball screw nut (3) forming the ball screw mechanism (3 and 4), are rotatably supported relative to the housing members (5 and 8) via a free rotation mechanism (20 and 20).

Abstract: A ball screw shaft supporting structure of a ball screw rotationally supported by a housing via supporting bearings has a screw shaft formed, on its outer circumference, with a fitting portion and a positioning shoulder. An inner ring of the supporting bearing is press fit onto the fitting portion via a predetermined interference. A steel spacer ring is fit onto the fitting portion from the outer side of the supporting bearing with the inner side of the inner ring abutted against the shoulder. A caulking portion is formed on the end of the fitting portion by plastically deforming the end of the fitting portion radially outward. The inner ring is axially immovably secured on the screw shaft by the caulking portion via, the spacer ring.

Abstract: An electrically driven linear actuator has an actuator body with a ball screw to convert a rotational motion to a linear motion. An electric motor provides the rotational motion. A gear mechanism transmits rotational motion of the electric motor to the ball screw of the actuator body. A position holding mechanism holds the position of the ball screw of the actuator body by engaging teeth, specifically a space between adjacent teeth, of a gear forming the gear mechanism.

Abstract: A ball screw has a nut formed with a helical ball rolling groove on its inner circumference. A screw shaft is formed with a helical ball rolling groove on its inner circumference. The screw shaft is inserted into the nut. A number of balls are rollably contained within a ball rolling passage formed by oppositely arranged helical ball rolling grooves of the nut and the screw shaft, respectively. The nut is made of case hardened steel. The ball rolling groove is formed by cutting and surface hardening, by vacuum carburizing hardening, without any after-processing.

Abstract: A ball screw shaft supporting structure of a ball screw rotationally supported by a housing via supporting bearings has a screw shaft formed, on its outer circumference, with a fitting portion and a positioning shoulder. An inner ring of the supporting bearing is press fit onto the fitting portion via a predetermined interference. A steel spacer ring is fit onto the fitting portion from the outer side of the supporting bearing with the inner side of the inner ring abutted against the shoulder. A caulking portion is formed on the end of the fitting portion by plastically deforming the end of the fitting portion radially outward. The inner ring is axially immovably secured on the screw shaft by the caulking portion via, the spacer ring.

Abstract: An electrically driven linear actuator (1) has an electric motor with a ball screw mechanism (3 and 4) connected to an output shaft (2a) of the electric motor (2), via a power transmitting mechanism (10 and 12) to convert a rotary motion of the electric motor (2) to a linear motion of an object member to be controlled by the actuator (1). Housing members (5, 6 and 8) contain the ball screw mechanism (3 and 4) and the power transmitting mechanism (10 and 12). Stroke end members (14 and 14), of a ball screw shaft (4) or a ball screw nut (3) forming the ball screw mechanism (3 and 4), are rotatably supported relative to the housing members (5 and 8) via a free rotation mechanism (20 and 20).

Abstract: A ball screw nut with a ball rolling groove where balls roll on the inner circumferential surface of the ball screw nut with the ball rolling groove formed by a surface generated by a tapping tool. A method of manufacturing a ball screw nut with a ball rolling groove where balls roll on the inner circumferential surface of the ball screw nut with a step of forming a predetermined inner circumferential surface at the center of a blank by a drilling tool. A step of generating the ball rolling groove by introducing a tapping tool into the inner circumferential surface. A step of heat treating to harden the surface of the ball rolling groove.

Abstract: An electrically driven linear actuator, which can suppress the generation of vibration or noise even if an alternating load or vibratory load is applied to the actuator, has an electric motor mounted on a housing. A screw shaft is coaxially connected to a motor shaft of the electric motor. The screw shaft is formed with a screw groove on its outer circumferential surface. A nut, threadably engaged with the screw shaft, has a pair of support shafts on its outer circumferential surface. The support shafts support one end of a link. The nut is formed with a screw groove on its inner circumferential surface. The nut screw groove corresponds to the screw groove of the screw shaft. A number of balls are contained between the screw grooves. Ball circulating members are coupled with the nut. Each ball circulating member is formed with an endless ball circulating passage between the screw grooves.

Abstract: An electrically powered steering device comprises a ball screw mechanism for transmitting a steering force from a steering wheel to steerable vehicle wheels. The ball screw mechanism includes a rotary nut 11 having a nut body 11a in which a circulating passage 15 is formed so as to extend axially thereof, and end caps 14a and 14b secured respectively to opposite ends of the nut body 11a. Each of the end caps 14a and 14b has defined therein respective guideways 17a and 17b for balls 13 that communicate opposite ends of the circulating tunnel 14 with a ball rolling passage 12. The end caps 14a and 14b and the nut body 11a are made of a sintered alloy. The nut body 11a has an outer periphery of one end thereof that is axially progressively reduced in diameter to define a tapered surface.

Abstract: A ball screw mechanism (20) compact in size, employing a minimized number of component parts and having a high load capacity includes a rotary nut (22) having an internally threaded helical groove (26) and a mounting hole (30) both defined therein, and a simplified bridge member (24) mounted in the rotary nut (22). The bridge member (24) has a plurality of connecting grooves (28) defined on an inner surface thereof each operable to communicate neighboring convolutions of the internally threaded helical groove (26). The bridge member (24) has its opposite side edges formed with respective guide walls (36) protruding in a direction radially outwardly of the rotary nut (22) that are crimped to allow the bridge member (24) to be fixedly retained within the mounting hole (30).

Abstract: A ball screw mechanism (20) compact in size, employing a minimized number of component parts and having a high load capacity includes a rotary nut (22) having an internally threaded helical groove (26) and a mounting hole (30) both defined therein, and a simplified bridge member (24) mounted in the rotary nut (22). The bridge member (24) has a plurality of connecting grooves (28) defined on an inner surface thereof each operable to communicate neighboring convolutions of the internally threaded helical groove (26). The bridge member (24) has its opposite side edges formed with respective guide walls (36) protruding in a direction radially outwardly of the rotary nut (22) that are crimped to allow the bridge member (24) to be fixedly retained within the mounting hole (30).

Abstract: An injection unit driving device or an mold-clamping unit driving device having a ball screw having a long life. Of the parts of the ball screw, only the balls are subjected to carburizing/nitriding treatment, while the threaded shaft and the nut are subjected to conventional hardening.

Abstract: A semiconductor device which remains highly reliable and is easy to mount even when a bonding pad pitch is reduced. The semiconductor device is featured in that a thermally conductive support substrate in which a semiconductor chip is fixed to a recessed portion is mounted on the reverse side of an insulating tape, that is, a TAB substrate having a conductor pattern on the surface; and solder balls are placed on the front side of the insulating tape to ensure connection to the conductor pattern on the front side through holes.