Abstract: A sewing machine is disclosed, wherein a downward pressure normally applied to the presser bar may be optionally adjusted in response to a selected pattern of stitches, and further may be reduced when the presser bar is lifted from the lower operative position to the upper inoperative position, and the operation may be performed smoothly and efficiently.

Abstract: A sewing machine with needle threading device is disclosed, wherein the thread passed through the needle eye of needle of the sewing machine by operation of a threading hook may be released from the threading hook during a process of the threading hook moving up to the upper initial position after the threading operation] is finished.

Abstract: According to the present invention, a jaw unit is provided with a frame-shaped jaw body and a tip for seizing an organism tissue in conjunction with an operating portion of a vibration transmitting member, and the tip is removably coupled between arms of the jaw body.

Abstract: An embroidery sewing machine is disclosed, the sewing machine having a stitch forming device including a needle (71) vertically reciprocated to form stitches on a work to be stitched, an embroidering frame (21) for holding the work and being moved relative to the needle in synchronism with the needle, and the stitch forming device being operated to decide a maximum speed of the vertically reciprocating needle (71) in dependence upon the type and weight of the work and the size and weight of the embroidering frame (21) and being further operated to reduce the speed of the vertically reciprocating needle (71) as the weight of the work and embroidering frame (21) increases and as the embroidering frame (21)is partly moved away from the body of sewing machine in the Y-direction.

Abstract: The invention has been made to provide an embroidery sewing machine which may be automatically operated to withdraw the embroidering frame to a predetermined inoperative position. More particularly, in case the power source switch is turned off, the power happens to be in failure, the power cord happens to be disconnected, the sewing operation is interrupted for a predetermined period of time, or the instruction is given to withdraw the embroidering frame to a predetermined inoperative position, the CPU 50 is responsive to these situations to control the X-Y moving mechanism 67 to withdraw the embroidering frame to the predetermined inoperative position.

Abstract: A sewing machine having a free arm which is provided with free arm sensors 5 and 6 for detecting a contact between the free arm and a cylindrical work during embroidery stitching operation, the cylindrical work being held by an embroidering frame 23 and placed on the free arm as covering the same so as to be embroidered thereon. The contact as detected is indicated to the machine user or the sewing machine is stopped. Further, the contact detection may be used to seek an area where the work may be allowed to be embroidered. The area as sought is discriminated prior to initiation of stitching operation if the work may be embroidered in the area.

Abstract: A sewing machine having a threading device is disclosed, the sewing machine comprising a needle bar having a needle attached to the lower end thereof, the needle having a needle eye, a threading shaft having a threading member mounted to the lower end thereof, the threading member having a threading hook, a drive motor for vertically moving the threading shaft along the needle bar, guide means for guiding and rotating the threading shaft at a threading position as the same is vertically moved, a regulating member for deciding the threading position of the threading shaft, wherein the threading shaft is moved down and stopped at the threading position and is axially rotated to pass the treading hook through the needle eye and is maintained in this state until a return signal is given such that the drive motor is driven again to pull the threading hook out of the needle eye and move up the threading shaft.

Abstract: A sewing machine is disclosed, wherein a downward pressure normally applied to the presser bar may be optionally adjusted in response to a selected pattern of stitches, and further may be reduced when the presser bar is lifted from the lower operative position to the upper inoperative position, and the operation may be performed smoothly and efficiently.

Abstract: A sewing machine with pattern stitching function is disclosed, wherein pattern data may be optionally selected to control the swinging movement of the vertically reciprocating needle and the work feeding amount of the work feeding mechanism, thereby to form a pattern composed of a plurality of pattern elements, the selected pattern data being modified with respect to each of the pattern elements.

Abstract: A treatment tool for operation comprises an insertion section (3) inserted into a living body, an operating section (5) including a fixed handle (6) removably connected to the base end side of the insertion section and a movable handle (77) adapted to operate with respect to the fixed handle, and a treatment section drive unit (2) including a treatment section operable and arranged at the forward end side of the insertion section, a drive unit (23) for driving the treatment section and a drive shaft (24) for connecting the drive unit to the operating section and transmitting the operating force of the operating section to the drive unit for operating the treatment section. An engaging section (121) is arranged at the forward end side of the fixed handle, and an engaging/disengaging member (111) is arranged at the base end of the insertion section and is adapted to engage the engaging section as required.

Abstract: The invention has been made to provide an embroidery sewing machine which may be automatically operated to withdraw the embroidering frame to a predetermined inoperative position. More particularly, in case the power source switch is turned off, the power happens to be in failure, the power cord happens to be disconnected, the sewing operation is interrupted for a predetermined period of time, or the instruction is given to withdraw the embroidering frame to a predetermined inoperative position, the CPU 50 is responsive to these situations to control the X-Y moving mechanism 67 to withdraw the embroidering frame to the predetermined inoperative position.

Abstract: An embroidery sewing machine is disclosed, the sewing machine having a stitch forming device including a needle 71 vertically reciprocated to form stitches on a work to be stitched, an embroidering frame 21 for holding the work and being moved relative to the needle in synchronism with the needle, and the stitch forming device being operated to decide a maximum speed of the vertically reciprocating needle 71 in dependence upon the type and weight of the work and the size and weight of the embroidering frame 21 and being further operated to reduce the speed of the vertically reciprocating needle 71 as the weight of the work and embroidering frame 21 increases and as the embroidering frame 21 is partly moved away from the body of sewing machine in the Y-direction

Abstract: A ultrasonic treatment apparatus of the present invention comprises a ultrasonic vibrator for generating ultrasonic vibration, a vibration transmitting member connected to the ultrasonic vibrator at a proximal end thereof, the vibration transmitting member transmitting ultrasonic vibration generated by the ultrasonic vibrator and having a treatment section for treating tissues of a living body by the transmitted ultrasonic vibration at a tip end thereof, a sheath removably mounted to the ultrasonic vibrator, the sheath covering the substantially entire vibration transmitting member excluding the treatment section from the outside, a high-frequency power connection connector provided at the sheath, the connector electrically connected to a high-frequency power source via a cable for supplying a high-frequency current, and a conductive member for electrically connecting the high-frequency power connection connector to the vibration transmitting member.

Abstract: A pattern lithography system for lithographing a pattern with reference to a pattern data by deflecting an electron beam includes a controller, an extracting unit, a dividing unit, and an expansion unit. The controller analyzes the pattern data and determines stripes of the pattern to be successively lithographed. The extracting unit extracts parts of the pattern data corresponding to stripes of the pattern in response to commands from the controller and sends the data to the dividing unit. The dividing unit divides the part of the pattern data into a plurality of sub-patterns. The sub-patterns are sized smaller than a minimum deflection range of the electron beam. The expanding unit expands the sub-patterns in accordance with a command from the controller to produce stripe data for driving a lithographing unit to lithograph the stripe. Stripes may have at least one sub-pattern in common such that multiple lithography is performed.

Abstract: A charged beam lithography system includes a charged particle gun for generating charged beams, a main deflecting system and a sub-deflecting system for deflecting the charged beams generated by the charged particle gun, and a control computer. The charged beam lithography system is designed to cause the surface of a substrate to be irradiated with the charged beams from the charged particle gun while continuously moving a stage, to write a desired pattern for each of stripes defined by the maximum deflection widths of the main deflecting system and the sub-deflecting system. The charged beam lithography system further comprises: a real time proximity effect correcting circuit for calculating an optimum dosage for each of the stripes by correcting the dosage of the electron beams in view of the influence of the proximity effect; and a cash memory for storing the optimum dosage data for at least two of the stripes.

Abstract: A lock stitch sewing machine with an automatic thread tension adjusting device is disclosed, wherein the sewing machine has a plurality of thread tension adjusting mechanisms 7, each of which including a pair of thread tension disks 12, 13, one of which is normally pressed by a spring toward the other. A sensor 4 is responsive to the operation of a thread tension releasing lever 20 made by a user with a slight touch applied thereto to give a signal. A CPU1 is responsive to the signal to compare the value of the existing thread tension of the thread tension adjusting mechanisms 7 with a predetermined one. If the value of the existing thread tension is higher than the predetermined one, the CPU1 is operated reduce the value of the existing thread tension to a predetermined one. Thus the tension releasing operation ability is increased.

Abstract: In a method of generating from design data the exposure data necessary for a multistage-deflection charged beam exposure device that has a main deflector and a sub-deflector and forms a pattern, before a shape larger than the size of a minimum subfield area is divided during the generation of subfield exposure data, the process of dividing the shape into shapes equal to or smaller than the size of a subfield area and restructuring the shape is performed. Moreover, after the overlapping cell arrays in the design data are changed into a cell array structure preventing the cell arrays from overlapping, the resulting cell arrays are subjected to a hierarchical shape data operation process and a formatting process, including compression, subfield division, and frame division. This makes it possible to reduce the amount of data supplied without increasing the time required to converting the design data into exposure data supplied to the charged beam exposure device.

Abstract: A treating instrument for an operation includes an elastic ring for reducing a load on an operator's fingers which contact first and second rings of first and second handle elements. The elastic ring is provided on a section of at least one of the first and second rings which contacts the operator's fingers.

Abstract: The present invention provides a charged beam drawing method comprising a first step of setting a stripe field independent of drawing pattern definition data and of determining the drawing pattern definition data which belongs to the stripe field set, a second step of setting a sub-field independent of the drawing pattern definition data and of determining the drawing pattern definition data which belongs to the sub-field, among the drawing pattern definition data determined, a third step of drawing the drawing pattern definition data which belongs to the sub-field onto an object to be subjected to drawing, a fourth step of shifting a position of the stripe field by a first predetermined value, and of shifting a position of the sub-field by a second predetermined value, and a fifth step of repeating the first to fourth steps for at least two times.

Abstract: A medical instrument for use in combination with an endoscope having an operating shaft and a pair of tongs. The instrument has a drive mechanism provided between the operating shaft and the tongs, for opening and closing the tongs. The drive mechanism can apply an additional force to the tongs even after the tongs have closed completely.