Abstract: An actuator (202) includes a stick-shaped center yoke (1) inserted through a cylindrical outer yoke (10), a support member that supports the outer yoke (10) such that the outer yoke (10) is linearly movable in an axial direction of the center yoke (1), a first coil (2), a second coil (3), and a third coil (4) wound around the center yoke (1), a first magnet array (11) and a second magnet array (12) disposed on an inner periphery of the outer yoke (10) in such a manner as to face the first coil (2), the second coil (3), and the third coil (4), a flat base plate (13) disposed at a first end portion of the center yoke (1), and a heat radiation member touching the base plate (13).

Abstract: A contact control device (100) includes a disturbance correction timing control unit (42) that selectively outputs a first reference speed signal indicating a first reference speed or a second reference speed signal indicating a second reference speed lower than the first reference speed. When a movable part (12) comes closer to a second component (B) beyond a first reference position between a fixed part (11) and the second component (B), the disturbance correction timing control unit (42) switches its output signal from the first reference speed signal to the second reference speed signal and switches a gain in proportional compensation from a first gain to a second gain lower than the first gain.

Abstract: An actuator (202) includes a rod-shaped inner yoke (1) inserted through a cylindrical outer yoke (10); a support member that supports the outer yoke (10) so as to be linearly movable in an axial direction of the inner yoke (1); a first coil (2) and a second coil (3) wound around the inner yoke (1) with a gap provided between the first coil (2) and the second coil (3), the first coil (2) and the second coil (3) passing currents in mutually opposite directions; a first magnet array (11) provided on an inner peripheral part of the outer yoke (10) so as to face the first coil (2); and a second magnet array (12) provided on the inner peripheral part of the outer yoke (10) so as to face the second coil (3), magnetic poles of the second magnet array (12) being oriented in an opposite direction to magnetic poles of the first magnet array (11).

Abstract: An actuator (202) includes a stick-shaped center yoke (1) inserted through a cylindrical outer yoke (10), a support member that supports the outer yoke (10) such that the outer yoke (10) is linearly movable in an axial direction of the center yoke (1), a first coil (2), a second coil (3), and a third coil (4) wound around the center yoke (1), a first magnet array (11) and a second magnet array (12) disposed on an inner periphery of the outer yoke (10) in such a manner as to face the first coil (2), the second coil (3), and the third coil (4), a flat base plate (13) disposed at a first end portion of the center yoke (1), and a heat radiation member touching the base plate (13).

Abstract: A contact control device (100) includes a disturbance correction timing control unit (42) that selectively outputs a first reference speed signal indicating a first reference speed or a second reference speed signal indicating a second reference speed lower than the first reference speed. When a movable part (12) comes closer to a second component (B) beyond a first reference position between a fixed part (11) and the second component (B), the disturbance correction timing control unit (42) switches its output signal from the first reference speed signal to the second reference speed signal and switches a gain in proportional compensation from a first gain to a second gain lower than the first gain.

Abstract: A rosin-modified phenolic resin, which consists of a reaction product among (a) a rosin that contains a component derived from communic acid in an amount of 0.1 to 0.8 wt %, (b) a condensation product of a phenol and formaldehyde, and (c) a polyol. The rosin-modified phenol resin makes it possible to produce a printing ink which has a good balance among ink performances such as fluidity, emulsification resistance, misting resistance, drying properties, and gloss.

Abstract: A rosin-modified phenolic resin, comprising a product obtained by reaction of (a) a rosin material containing 0.4 to 10% of dihydroagathic acid, (b) a condensate of a phenolic compound and formaldehyde, and (c) a polyol. The rosin-modified phenol resin is suitable for printing ink applications, and the amount of printing ink mist can reduced without the luster of the printed materials being diminished while maintaining various ink capabilities (dryng properties, emulsifying properties, etc.).

Abstract: A light beam is emitted to an optical disc from an optical pickup. The optical pickup is moved over the optical disc so that a light spot of the light beam crosses tracks formed on the optical disc. Detected are tracking error signals carried by a light beam reflected from the optical disc. Each tracking error signal is detected when the light spot crosses a corresponding track among the tracks formed on the optical disc. Track crossing pulses are generated based on the tracking error signals. Each track crossing pulse is generated for the corresponding track. Measured next is a half period of each track crossing pulse. It is determined whether a defect occurs to each track crossing pulse, based on a latest half period measured at present and an anterior half period measured one half-period before the latest half period. Generated when determined that no defect occurs is an average half period of the latest and the anterior half periods.

Abstract: A light beam is emitted to an optical disc from an optical pickup. The optical pickup is moved over the optical disc so that a light spot of the light beam crosses tracks formed on the optical disc. Detected are tracking error signals carried by a light beam reflected from the optical disc. Each tracking error signal is detected when the light spot crosses a corresponding track among the tracks formed on the optical disc. Track crossing pulses are generated based on the tracking error signals. Each track crossing pulse is generated for the corresponding track. Measured next is a half period of each track crossing pulse. It is determined whether a defect occurs to each track crossing pulse, based on a latest half period measured at present and an anterior half period measured one half-period before the latest half period. Generated when determined that no defect occurs is an average half period of the latest and the anterior half periods.

Abstract: A magnetic reproducing apparatus of a helical scan type includes a rotary drum on which a magnetic tape is wound along a part of a helix. A first set of a main head and a sub head is mounted on the rotary drum. The main head and the sub head in the first set are positionally close to each other. The main head and the sub head in the first set have a first azimuth angle and a second azimuth angle respectively. A second set of a main head and a sub head is mounted on the rotary drum. The main head and the sub head in the second set are positionally close to each other. The main head and the sub head in the second set have the second azimuth angle and the first azimuth angle respectively. The second set is opposed to the first set.

Abstract: A device for detecting the position of a recording/reproducing element, which is provided with two position detecting elements having the same input/output characteristics and a device for generating a difference signal representing the difference between output signals of the two position detecting elements. Further, the outputs of the position detecting elements vary correspondingly to change in position of the recording/reproducing element in such a manner to be complementary to each other.

Abstract: A magnetic head actuator for displacing a magnetic head on a rotary magnetic head drum in a magnetic recording and reproducing apparatus includes a hollow cylindrical yoke housing a permanent magnet and a central pole therein, providing a magnetic circuit having an air gap. A support shaft axially movably extends through the yoke and has opposite ends positioned outside of the yoke. A coil bobbin is attached to the end of the support shaft which is positioned outside of the open end of the yoke. The coil bobbin supports a coil which is axially movably positioned in the air gap. Two parallel resilient suspension support wings are mounted on the yoke and attached respectively to the opposite ends of the support shaft. A magnetic head holder supporting a magnetic head is mounted on the end of the support shaft near the bottom of the yoke.

Abstract: A video signal recording apparatus forms closed loop tracks on a rotary recording medium, and records a video signal amounting to one field on each track so that out of two mutually adjacent tracks making up a track pair, a signal related to an odd (or even) field out of signals which are related to two consecutive fields and constitute a picture is recorded on one track of the track pair and a signal related to an even (or odd) field out of signals which are related to two consecutive fields and constitute a picture is recorded on the other track of the track pair, so that signals amounting to one frame are recorded on the track pair.

Abstract: A video signal recording apparatus uses a crosstalk component reproduced from an adjacent pre-recorded track to control the position of a track which is newly formed when successively forming closed loop tracks on a rotary recording medium, and records a video signal amounting to one field on each track so that out of two mutually adjacent tracks making up a track pair, a signal related to an odd (or even) field out of signals which are related to two consecutive fields and constitute a picture is recorded on one track of the track pair and a signal related to an even (or odd) field out of signals which are related to two consecutive fields and constitute a picture is recorded on the other track of the track pair, so that signals amounting to one frame are recorded on the track pair.

Abstract: Wadding materials suitable for bedclothes and clothes and having high bulkiness and compressibility, excellent bulkiness recovery, light weight and high warmth retaining ability, which consist of a blend of 80-20% by weight of staple fibers (A) having a monofilament fineness of 3-10 deniers and a curliness of not less than 15% and 20-80% by weight of synthetic polymer staple fibers (B) having a monofilament fineness of 0.7-4 deniers which is smaller than that of the staple fibers (A) and a curliness of less than 15%.

Abstract: Wadding materials consist of a blend of 90-10% by weight of staple fibers (A) having a monofilament fineness of 3-10 deniers and a curliness of not less than 15% and 10-90% by weight of staple fibers (B) of a synthetic polymer having a monofilament fineness of 0.7-4 deniers, which is smaller than that of the staple fibers (A), and a curliness of less than 15%, and synthetic fibers having a melting point which is lower than that of both the above described staple fibers (A) and (B) by more than 20.degree. C., or film-shaped structural elements (C), or of the above described blend of (A) and (B) and both the above described lower melting point synthetic fibers and the film-shaped structural elements (C). The wadding materials have natural down-like physical properties, such as high compressibility, compactness, high bulkiness, moderate resiliency, high drape property, good body fitness, soft touch, light weight and excellent warmth retaining ability.

Abstract: A toner for the electrostatic printing of a sheet like material, which comprises a toner substrate consisting essentially of a resin and a coloring matter, and a triazine derivative applied to the surface of or incorporated in the toner substrate.

Abstract: A process of electrostatically printing a design on fabrics which comprises forming an electrostatic latent image corresponding to the design on a photoconductive material or an insulating dielectric material, developing the latent image with a toner comprising at least one chargeable resin and at least one colorant, transferring the developed toner image directly to a fabric having a surface inherent resistivity, as measured at a temperature of 20.degree. C and a relative humidity of 65%, of about 1 .times. 10.sup.6 to about 1 .times. 10.sup.14 ohms, and fixing the toner image to the fabric. When the transferring of the toner image is carried out using a corona discharge, a smooth sheet having a volume inherent resistivity of about 1 .times. 10.sup.6 to about 1 .times. 10.sup.20 ohms and a dielectric constant of about 2 to about 40 can be overlaid on the fabric to apply corona discharge through the sheet and thereby produce better results.