Abstract: A clutch device includes an input disc, an output disc, and a biasing member configured to press the input disc against the output disc. A rotation load applied to an output shaft separates the input disc from the output disc against biasing force of the biasing member. The input disc and the output disc include opposing surfaces, each of which includes axially disengageable overlapping tooth portions. Recessed and raised portions of each tooth portion are formed continuously in a radial direction and are alternately arranged in a circumferential direction. Each of the curved shapes of the recessed and raised portions is maintained at a respective identical height while a circumferential width thereof continuously expands in a radially outward direction. Also disclosed is a motor unit including the clutch device. The disclosed clutch device reduces, e.g., deformation or damage of a disengageable portion, and therefore, can improve durability.

Abstract: A 3D-scanning optical imaging probe which inhibits rotation unevenness of rotational sections, shaft run-out, friction, and rotation transmission delay by reducing the occurrence of torque loss and rotation transmission delay, and which is capable of obtaining 3D scans and observation images within a fixed frontal range. A substantially tubular catheter has, provided along substantially the same line therein: a fixed-side optical fiber; a first optical path conversion means which is rotationally driven by a first motor, and which rotates and emits a beam of light forwards and tilted at an angle with respect to a rotational axis; and a second optical path conversion means which, at a tip side of a rotation-side optical fiber rotationally driven by a second motor, tilts an optical path by a micro-angle with respect to the rotational axis, and rotates and emits the beam of light to irradiate the first optical path conversion means therewith.

Abstract: The present invention is provided to suppress occurrence of free flow. An infusion pump includes: a sliding clamp closing and releasing an infusion tube; a pump body including a tube attachment portion to which the infusion tube is to be attached detachably and forcibly transferring liquid in the infusion tube; and a door pivotably supported by the pump body so that the tube attachment portion is openable and closable by the door. The pump body includes: a clamp attachment portion into which the sliding clamp having the infusion tube set therein is to be inserted and set; and a release operator being operated in the clamp attachment portion to transfer the sliding clamp from a close mode to a release mode, the release operator being configured to be locked, in response to opening movement of the door, so that the release operator is inoperable for releasing, and to be unlocked in response to closing movement of the door.

Abstract: A cutting tool for cutting a hard brittle material is formed from a light-transmittable material through which laser light can pass and is provided with a rake angle, the laser light is propagated through the cutting tool, the cutting tool and the hard brittle material are brought into contact with each other, the laser light is incident to at least a contact part where the cutting tool and the hard brittle material are in contact with each other and a part with the rake angle, the laser light except for Fresnel reflection light on an end surface of the cutting tool is incident to the hard brittle material through the contact part and the rake angle part to soften the hard brittle material, and the softened hard brittle material is cut.

Abstract: An optical inner-surface measurement device includes: an optical fiber included inside a tube, the optical fiber being configured to be inserted into a hole of an inspection object; at least two optical-path converting elements disposed in a forward-end of the optical fiber; and a motor for rotationally driving at least one of the at least two optical-path converting elements. The at least two optical-path converting elements emit a light beam, guided thereto through the optical fiber, to an inner peripheral surface of the hole of the inspection object three-dimensionally in a circumferential direction and an axial direction of the hole.

Abstract: Higher-precision measurement is achieved by an optical inner surface measuring device configured to cause a probe to enter into the inner peripheral surface or deep hole of a target object, capture and observe reflection light from the inner surface in a three-dimensional manner, and measure the accuracy of the target object. In a structure including an optical fiber built into a tube, a light path conversion unit arranged at a leading end side of the optical fiber, and a motor configured to rotationally drive the light path conversion unit, a unit for measuring the amount of runout of a rotation shaft unit of the motor is provided. Shape data on the inner peripheral surface of a target object is obtained by calculating at a computer reflection light from the target object, and is modified by displacement amount data from a displacement measurement unit to realize high-precision measurement with no measurement error resulting from runout and rotational vibration of the rotation shaft of the motor.

Abstract: Provided is optical imaging probe that is able to obtain stable observation image by optical path correction. It includes a rotation driving source adapted to drive and rotate a rotor; a first single-mode optical fiber inserted and fixed over the axial direction in the rotation center side of the rotor, the front end of which light is able to enter; a second single-mode optical fiber supported at the rear end side of the first single-mode optical fiber in a non-rotatable manner; and a gap and optical path correcting means interposed between the first single-mode optical fiber and the second single-mode optical fiber, and the optical path correcting means is adapted to expand and collimate the light transmitted from one single-mode optical fiber and pass it through the gap, and then guide it to the other single-mode optical fiber.

Abstract: Provided is an optical imaging probe that is able to obtain a stable observation image by a dynamic pressure bearing. An optical imaging probe for guiding rearward a light entering a front end includes: a rotation driving source adapted to drive and rotate a rotor; a tubular rotation shaft inserted and fixed over an axial direction in a rotation center side of the rotor; an optical fiber inserted in the tubular rotation shaft, the front end of which a light is able to enter; and a bearing member supporting the tubular rotation shaft in a rotatable manner, and the bearing member configures a dynamic pressure bearing adapted to generate a high lubricating oil film pressure locally at multiple positions in a circumference direction.

Abstract: There is provided a clutch mechanism that allows easy downsizing and produces favorable productivity. Output rotator has on the outer circumferential surface thereof cam surfaces and configured to gradually reduce the space from a housing chamber inner circumferential surface toward one side and recesses adjacent to the one side of the cam surfaces. Input rotator has pressure transmission portions that are fitted with circumferential play to the recesses and are protruded from the insides of the recesses in a centrifugal direction. Engagement pieces are disposed in contact with the cam surfaces and the housing chamber inner circumferential surface. When the input rotator rotates toward the other side relative to the one side, the pressure transmission portions abut against the engagement pieces and then abut against circumferential end surfaces in the recesses to press and move the output rotator.

Abstract: A probe for a three-dimensional (3D) scanning optical imaging which prevents rotational irregularity, axial runout, friction, rotation transmission delays of a rotational part by reducing occurrences of rotation transmission delays, torque loss, and the like, and can perform scanning of a certain length in an axial direction and obtain a three-dimensional observation image, in a probe for OCT image diagnosis. A fixed side optical fiber that transmits light between a tip side and a rear side of a probe and is non-rotatably disposed, a first optical path conversion means that rotates to emit a light ray in a substantially radial direction, a rotation side optical fiber which is rotated by a motor, and a second optical path conversion means that rotates and emits light toward the first optical path conversion means are collinearly disposed. In this way, it is possible to obtain a high quality 3D observation image.

Abstract: To provide an SmCo-based rare earth sintered magnet having a small diameter and a multipolar magnetized magnetic structure and having a high coercive force and a high magnetization rate. The outer shape of an SmCo-based rare earth sintered magnet having a coercive force HCJ (kOe) at a room temperature (° C.) of 7.5 (kOe)<HCJ?27 (kOe) is formed into any one of a cylindrical shape, a ring-like shape, a columnar shape, and a disk-like shape. Multi-pole magnetization is performed on the SmCo-based rare earth sintered magnet so as to satisfy (diameter D/the number of poles p) (mm)<(4/?) (mm) (p is an even number equal to or greater than 4), and the magnetization rate is set to 80(%) or more.

Abstract: Provided is a micro motor with micro diameter that can be manufactured with high accuracy and efficiency. The micro motor (10) includes a tubular motor housing (11), a motor shaft (12) that is supported in the motor housing (11) and rotationally driven, and a connecting member (16) that covers one opening of the motor housing (11) and allows the motor shaft (12) to be inserted to project outward, and the micro motor (10) can transmit rotation of the motor shaft (12) to a planetary gear mechanism (driven unit) (20) as another unit. The connecting member (16) integrally includes a bearing (16c) for rotatably supporting the motor shaft (12) and an output side connecting part (16a) that can be connected to a tubular casing (21) of the planetary gear mechanism (20).

Abstract: PROBLEM: To reduce occurrence of an error of not closing a tube and to simplify a structure and an operation procedure. SOLUTION: In a tube clamp structure of a tubing pump for closing a tube 30 attached to and detached from a pump body 10 by a clamp device 40, the clamp device 40 is equipped with: a first holding piece 41; a second holding piece 42 engaged to approach or separate from the first holding piece 41; and an urging member for urging these first holding piece 41 and second holding piece 42 in approaching directions, is configured to hold and deform the tube 30 between these first holding piece 41 and second holding piece 42 for closing, and is detachably attached to the pump body 10.

Abstract: To provide a vibration actuator capable of both rotation and linear drive and providing a stable driving force. A vibration actuator whose output shaft is moved by vibration includes an oscillatable element with an approximately polygonal shape, the oscillatable element including a hole through which the output shaft is inserted and a slit portion expanding radially from this hole. This slit portion generates the spring force between the output shaft and the oscillatable element to energize the output shaft and holds the output shaft. At least one surface of outer peripheral surfaces of the oscillatable element and its opposite surface are provided with vibrators with the patterned electrodes. A progressive wave is generated in the oscillatable element by applying sequentially voltage to an electrode pattern of the patterned electrodes, thereby rotating the output shaft and displacing the output shaft axially due to the vibration.

Abstract: Higher-precision measurement is achieved by an optical inner surface measuring device configured to cause a probe to enter into the inner peripheral surface or deep hole of a target object, capture and observe reflection light from the inner surface in a three-dimensional manner, and measure the accuracy of the target object. In a structure including an optical fiber built into a tube, a light path conversion unit arranged at a leading end side of the optical fiber, and a motor configured to rotationally drive the light path conversion unit, a unit for measuring the amount of runout of a rotation shaft unit of the motor is provided. Shape data on the inner peripheral surface of a target object is obtained by calculating at a computer reflection light from the target object, and is modified by displacement amount data from a displacement measurement unit to realize high-precision measurement with no measurement error resulting from runout and rotational vibration of the rotation shaft of the motor.

Abstract: Provided is a composite substrate manufacturing method, including at least: a first raw board deforming step of preparing a first substrate by deforming a first raw board having at least one surface as a minor surface into a state in which the minor surface warps outward; and a joining step of joining, after the first raw board deforming step, a protruding surface of the first substrate and one surface of a second substrate to each other, thereby manufacturing a composite substrate including the first substrate and the second substrate, in which the second substrate is any one substrate selected from a substrate having both surfaces as substantially flat surfaces and a substrate that warps so that a surface thereof to be joined to the first substrate warps outward. Also provided are a semiconductor element manufacturing method, a composite substrate and a semiconductor element manufactured.

Abstract: A bearing mechanism includes: an outer ring; an inner ring rotatably supported by a plurality of rolling elements on an inner peripheral side of the outer ring; a rotating shaft supported by the inner ring on an inner peripheral side of the inner ring; a supporting member supporting one of the outer and inner rings, the supporting member being configured to prevent the one ring from moving in an axial direction; and a centrifugal spring on an outer peripheral portion of the rotating shaft, the centrifugal spring being configured to generate preload between the outer and inner rings by applying pressure to the other ring of the outer and inner rings in the axial direction. The centrifugal spring is configured to elastically expand a diameter thereof and elastically contract in an axial direction thereof by a centrifugal force caused by integral rotation with the rotating shaft.

Abstract: A 3D-scanning optical imaging probe which inhibits rotation unevenness of rotational sections, shaft run-out, friction, and rotation transmission delay by reducing the occurrence of torque loss and rotation transmission delay, and which is capable of obtaining 3D scans and observation images within a fixed frontal range. A substantially tubular catheter has, provided along substantially the same line therein: a fixed-side optical fiber; a first optical path conversion means which is rotationally driven by a first motor, and which rotates and emits a beam of light forwards and tilted at an angle with respect to a rotational axis; and a second optical path conversion means which, at a tip side of a rotation-side optical fiber rotationally driven by a second motor, tilts an optical path by a micro-angle with respect to the rotational axis, and rotates and emits the beam of light to irradiate the first optical path conversion means therewith.

Abstract: A probe for a three-dimensional (3D) scanning optical imaging which prevents rotational irregularity, axial runout, friction, rotation transmission delays of a rotational part by reducing occurrences of rotation transmission delays, torque loss, and the like, and can perform scanning of a certain length in an axial direction and obtain a three-dimensional observation image, in a probe for OCT image diagnosis. A fixed side optical fiber that transmits light between a tip side and a rear side of a probe and is non-rotatably disposed, a first optical path conversion means that rotates to emit a light ray in a substantially radial direction, a rotation side optical fiber which is rotated by a motor, and a second optical path conversion means that rotates and emits light toward the first optical path conversion means are collinearly disposed. In this way, it is possible to obtain a high quality 3D observation image.