Abstract: An object of the present invention is to provide a balloon catheter integrated with a guidewire in which a stepped portion is prevented from being formed between a coil portion of the guidewire and a front end portion of the balloon catheter and thus crossability of the balloon catheter is improved. The balloon catheter includes a transition part made of resin that smoothly connects an external shape of an outer coil of a front end coil part and an external shape of a tip portion of a front side inner shaft.

Abstract: A catheter body includes a hollow coil whose outer and inner surfaces are coated with outer and inner resin layers. A resin tip is provided at a distal end of the catheter body. The tip has a tapered section at a distal end of the tip. Also, an axially extending braid is embedded in the catheter body and the tip to extend from the catheter body to the tip.

Abstract: A catheter includes a proximal shaft, a distal shaft including a proximal end portion having an inner cavity into which a distal end portion of the proximal shaft is fitted, and a core wire extending through the inner cavity of the distal shaft. The core wire has a proximal end portion that is joined to a cutout portion formed in the distal end portion of the proximal shaft. Joining means are formed along a joint surface between the proximal end portion of the core wire and the cutout portion. When the joining means are divided into first joining means and second joining means along a longitudinal axis of the catheter, a length of one of the first joining means and the second joining means is larger than a length of the other of the first joining means and the second joining means.

Abstract: A structure includes a main tube 2 that contains a needlelike tubular body lumen 10 through which a needlelike tubular body 3 is inserted, with a distal section 4 of the main tube 2 having a first guide wire insertion section 33 and second guide wire insertion section 35, respectively containing a first guide wire lumen 38 and second guide wire lumen 52 through which a first guide wire 32 and second guide wire 34 are inserted. This structure further has a support tube 62 whose tip remains a free end, wherein this support tube 62 accepts a part of the second guide wire 34 extending out of the second guide wire lumen 52 and thereby supports the second guide wire insertion section 35.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: An object of the present invention is to provide a balloon catheter integrated with a guidewire in which a stepped portion is prevented from being formed between a coil portion of the guidewire and a front end portion of the balloon catheter and thus crossability of the balloon catheter is improved. The balloon catheter includes a transition part made of resin that smoothly connects an external shape of an outer coil of a front end coil part and an external shape of a tip portion of a front side inner shaft.

Abstract: A polishing sheet, having polishing particles fixed to a base sheet in a single-layer formation by an adhesive agent so as to be mutually separated in the direction of their plane and having cutting edges exposed and arranged to be coplanar, is produced by forming on a provisional base sheet a film of a provisional adhesive agent of a thickness smaller than the average diameter of the polishing particles, dispersing the polishing particles onto the film of the provisional adhesive agent so as to contact the provisional base sheet, pressing the base sheet covered with the adhesive agent onto the polishing particles with the adhesive agent facing towards the polishing particles, hardening the pressed adhesive agent, and removing the provisional base sheet and the film of the provisional adhesive agent. The polishing particles are charged in a same polarity when dispersed.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: A polishing sheet suitable for precise polishing is produced by arranging polishing particles as a single particle layer on a base sheet and includes a base sheet and a polishing layer made of polishing particles and a binder resin for fixing the polishing particles that are arranged as a single particle layer. The polishing particles protrude partially from the surface of the binder resin, being covered or not covered with a thin film of the binder resin.

Abstract: A catheter body includes a hollow coil whose outer and inner surfaces are coated with outer and inner resin layers. A resin tip is provided at a distal end of the catheter body. The tip has a tapered section at a distal end of the tip. Also, an axially extending braid is embedded in the catheter body and the tip to extend from the catheter body to the tip.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: This invention presents a method and an apparatus for manufacturing a magnetic recording disk, where steps from magnetic-film deposition to lubricant-layer preparation are carried out without vacuum breaking. The invention also presents a method and an apparatus for manufacturing a magnetic recording disk, where a substrate is cleaned prior to the lubricant-layer preparation. The invention also presents a method and an apparatus for manufacturing a magnetic recording disk, where burnishing is carried out in vacuum after the magnetic-film deposition. The invention also presents a method and an apparatus for manufacturing a magnetic recording disk, where post-preparation treatment to coordinate adhesive strength and surface lubricity of the lubricant layer is carried out in vacuum.

Abstract: The invention provides a reagent-introducing medical device that can guide a reagent into a reagent injector while maintaining all biological materials contained in the reagent in a healthy state. In an embodiment of the reagent-introducing medical device, an apparatus body (12) comprises a channel (77, 78, 80, 50e) through which a reagent flows, as well as a reagent inlet (76) and outlet (21), and further comprises a first control mechanism (58, 64) for controlling the flow of the reagent to create a laminar reagent flow in the channel (77, 78, 80, 50e) and a second control mechanism (70) for further controlling the laminar reagent flow in the channel to create a rotational reagent flow.

Abstract: A structure includes a main tube 2 that contains a needlelike tubular body lumen 10 through which a needlelike tubular body 3 is inserted, with a distal section 4 of the main tube 2 having a first guide wire insertion section 33 and second guide wire insertion section 35, respectively containing a first guide wire lumen 38 and second guide wire lumen 52 through which a first guide wire 32 and second guide wire 34 are inserted. This structure further has a support tube 62 whose tip remains a free end, wherein this support tube 62 accepts a part of the second guide wire 34 extending out of the second guide wire lumen 52 and thereby supports the second guide wire insertion section 35.

Abstract: A bolt tightening device includes bolt tightening mechanisms, a torque input unit, a toothed belt and torque transmission units. The torque transmission units are provided with toothed pulleys and are integrated with the bolt tightening mechanisms. A toothed pulley is fixed to the torque input unit, and drivably connected to all the toothed pulleys of the plural torque input units by the single toothed belt. Torque input to the torque input unit is transmitted to the bolt tightening mechanisms by the toothed belt, and used to simultaneously tighten, for example, seven bolts. Because, torque can be simultaneously transmitted to plural bolt tightening mechanisms using a single belt, the number of components is reduced and the size, weight and cost are reduced and ease of use is improved.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Abstract: An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.