Abstract: A magnetic head manufacturing method including the steps of forming a recording lower magnetic pole and a recording upper magnetic pole on a substrate and trimming, by the ion milling method, a portion of the recording upper magnetic pole and the recording lower magnetic pole under the condition that the substrate is stationary.

Abstract: A hand-piece comprises an arm main body which moves relative to a grip section, and an arm section having a clamp member openable and closable with respect to a probe section. As a result of movement of the arm main body relative to the grip section, the clamp member is shifted between a closure position in which the clamp member cooperates with the probe section to hold living tissue between the clamp member and the probe section, and an open position in which the clamp member is separated from the probe section to release the living tissue.

Abstract: An ultrasonic treatment appliance according to the present invention comprises a handpiece with a built-in ultrasonic transducer, and an elongated probe extending forward from the handpiece and connected to the ultrasonic transducer in order to propagate ultrasonic vibrations. The ultrasonic treatment appliance further comprises a distal probe part formed as an integral part of or independently of the probe at the distal end of the probe, a jaw opposed to the distal probe part so that the jaw can open or close freely, and a thin chip located on the jaw or, the clamping side of the clamping portion of the jaw on which the clamping portion touches a living tissue, or an elastic member interposed between the supporting portion and clamping portion of the jaw.

Abstract: A method for manufacturing a spin valve GMR head is describe in which a fixed magnetic layer of the head may maintain magnetization in a desired orientation. In one aspect of the invention, the method comprises steps of: forming a magnetic film including at least a free magnetic layer, a non-magnetic metallic layer, a fixed magnetic layer, and a magnetic domain control layer; subjecting the magnetic film to a first heat treatment under a magnetic field to enhance magnetic anisotropy of the free magnetic layer; and subjecting the magnetic film to a second heat treatment under a magnetic field and at a higher temperature than the maximum temperature applied in the processes that precede the second heat treatment, to fix the magnetization in the fixed magnetic layer.

Abstract: An ultrasonic surgical apparatus of the present invention includes a vibration transmitting member for transmitting an ultrasonic vibration, a probe provided at a far end of the vibration transmitting member, a jaw adapted to grasp a tissue of interest relative to the probe, a jaw holding member movably supporting the jaw, an operation drive rod connected to the jaw, and an operation unit for operating the operation drive rod. A stopper tube is provided on the operation drive rod conductive to the opening/closing operation of the jaw and an opening/closing terminal position of the jaw relative to the probe is restricted by abutting the stopper tube against the jaw holding member.

Abstract: An ultrasound treatment system in accordance with the present invention comprises: ultrasonic transducers for generating ultrasonic vibrations; a handpiece including the ultrasonic transducers and serving as an operation unit; a probe connected to the ultrasonic transducers and serving as a vibration conveyer for conveying ultrasonic transducers to a distal member constituting a stationary section of a treatment unit used to treat a living tissue; a sheath serving as a protective member for shielding the probe; a holding member opposed to the distal member at the distal end of the sheath and constituting a movable section of the treatment unit which clamps a living tissue in cooperation with the distal member; a manipulator to be handled for clamping or freeing a living tissue using the holding member and distal member; an operation member for driving the holding member responsively to a movement of the manipulator; and a turning mechanism for turning the treatment unit relative to the manipulator with the ax

Abstract: An ultrasonic treatment instrument includes an ultrasonic transducer for generating ultrasonic oscillation, a hand piece containing the ultrasonic transducer, and a probe having a proximal end portion connected to the ultrasonic transducer and a distal end portion to which the ultrasonic oscillation of the ultrasonic transducer is transmitted. A sheath covers the probe and has a front end portion extending toward the distal end portion of the probe and a rear end portion connected to the hand piece. A hook-shaped treatment section is provided at the distal end portion of the probe and has a hook portion bent which is substantially perpendicular to an axis of the sheath and an axial body extending from a proximal end of the bent hook portion.

Abstract: An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Abstract: A distorted optical image formed on an image pickup surface by an optical system is photoelectrically converted by an image pickup device and written in memory cells of an image memory designated by write addresses. When the optical image is read, the image quality at the central portion is improved and the image is prevented from missing at the marginal portion so that the image can preferably be observed by correcting the distortion of an image in the area at the central side of the image pickup surface due to the optical system by read addresses obtained by converting the write addresses and preventing an image in the area at the marginal side from protrusion.

Abstract: An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Abstract: A hard-type endoscope apparatus equipped with an inserting portion, a plurality of lenses inserted in the insertion portion, and a lens-barrel holding the lenses, includes a spacer pipe provided in the lens-barrel along the optical path of the lenses. The lens barrel is made of synthetic resin materials containing an additive. The additive forms matting irregularities on an inner surface of the tubular member.

Abstract: An endoscope apparatus includes: an endoscope having an insertion section; and a sheath attached thereto so as to cover at least the insertion section of the endoscope, wherein the endoscope apparatus is equipped with: a forward end gap portion formed between the inner surface of an edge portion formed in the forward end portion of the sheath and the outer surface of the forward end portion of the insertion section of the endoscope; and a fluid passage which communicates with the forward end gap portion and which is formed between the inner surface of the sheath and the outer surface of the insertion section of the endoscope, and wherein a liquid feeding passage or a suction passage for passing a cleaning fluid or a sucked object is provided in the fluid passage, and a nozzle section for spraying the cleaning fluid onto an observation window portion in the forward end portion of the insertion section of the endoscope is provided in the forward end gap portion.

Abstract: A process for the treatment of water with ozone in which trace amounts of organic substances contained in water to be treated are oxidized and decomposed by diffusing ozone into the water introduced into a reaction tank, by injecting a chelate compound into the water to be treated after or just before the introduction of the water into the reaction tank. Preferred chelate compounds include ethylenediaminetetraacetic acid disodium salt, ethylenediaminetetraacetic acid calcium salt, ethylenediaminetetraacetic acid magnesium salt, ethylenediaminetetraacetic acid iron salt and iron citrate.

Abstract: An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Abstract: An ultrasonic treatment apparatus comprises a hand piece, and an RF power supply unit. The hand piece includes vibrator cover, a sheath connected thereto, a hollow cylindrical member, an ultrasonic vibrator in the cover for generating ultrasonic vibrations, a probe arranged in the sheath, for externally transmitting ultrasonic vibrations generated by the vibrator, and a cord for transmitting a high-frequency current from the RF power supply unit to the probe. The cover and sheath are composed of an insulating member, for preventing the high-frequency current transmitted by the probe from being externally leaked.

Abstract: An ultrasound type treatment apparatus includes an inner sheath covering an ultrasonic transmission member having a first suction passage and defining a space relative to the ultrasound transmission member and an outer sheath covering the inner sheath and defining a space relative to the inner sheath. In the treatment apparatus, a liquid medium supply passage is provided at one of the space between the ultrasound transmission member and the inner sheath and space between the inner sheet and the outer sheet to supply a liquid medium to the distal end of the ultrasound transmission member. A second suction passage is formed at the other of the space between the ultrasound transmission means and the inner sheath and space between the inner sheath and the outer sheath. The first suction passage is connected by a suction tube to the second suction passage.

Abstract: An ultrasound type treatment apparatus includes an ultrasonic oscillation device for outputting an ultrasonic oscillation wave, a drive circuit for driving the ultrasonic oscillation device, a probe connected to the ultrasonic oscillation device to transmit that ultrasonic oscillation wave to an affected region of interest of a human being, a sheath formed around the probe, through which cooling medium is passed and a supply tank for supplying cooling medium to the sheath. In this treatment apparatus, an arithmetic operation circuit monitors a drive state of the ultrasonic oscillation device, a comparator is provided for receiving monitor information from the arithmetic operation circuit and for determining whether or not the supply of cooling medium to the sheath is normal and a controller is provided for stopping a drive of the ultrasonic oscillation device when the supply of the cooling medium is determined by the comparator as being not normal.