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    • 3. 发明授权
    • Magnetic recording/reproducing apparatus and rotary head drum device
    • 磁记录/再现装置和旋转磁头鼓装置
    • US06751057B2
    • 2004-06-15
    • US10057551
    • 2002-01-25
    • Motoyoshi FujimoriIchiro HashimotoAkira Itou
    • Motoyoshi FujimoriIchiro HashimotoAkira Itou
    • G11B1562
    • G11B5/584G11B5/5921
    • A guide plate is provided along the respective outer periphery of rotary and fixed drums on the upstream side relative to an inlet portion where a magnetic tape starts making contact with a magnetic head on the rotary drum, an airflow attendant on the rotation of the rotary drum is stripped by a wedge-shaped edge on the guide plate and is released to the outer periphery side by a guide surface of the guide plate, and the airflow flowing in the axial direction into the space between the tape and the rotary drum is restrained by an extended portion of the guide plate. In a rotary head drum device for a magnetic recording/reproducing apparatus, formation of an excess air film near an inlet portion of the tape is restrained, and stable recording and reproducing can be achieved without raising the tape tension, thereby enhancing the life of the tape.
    • 引导板沿着相对于磁带开始与旋转磁鼓上的磁头接触的入口部分的上游侧的旋转和固定磁鼓的相应外周设置,在旋转磁鼓的旋转中伴随着气流 被引导板上的楔形边缘剥离,并被引导板的引导表面释放到外周侧,并且沿轴向方向流入带和旋转鼓之间的空气被限制 导板的延伸部分。 在用于磁记录/再现装置的旋转磁头鼓装置中,限制了在带的入口部分附近形成过量的空气膜,并且可以在不增加带张力的情况下实现稳定的记录和再现,从而提高 胶带。
    • 9. 发明授权
    • Multi-point welding method and catalyst support produced thereby
    • 由此产生的多点焊接方法和催化剂载体
    • US5391851A
    • 1995-02-21
    • US890608
    • 1992-07-13
    • Kiyotaka MatsuoMasao YokoiYasuyuki KawabeIchiro HashimotoKeiji Ito
    • Kiyotaka MatsuoMasao YokoiYasuyuki KawabeIchiro HashimotoKeiji Ito
    • B23K11/00B23K11/11B23K28/00F01N3/28
    • B23K28/00B23K11/0093B23K11/11F01N3/281F01N2330/04
    • Disclosed is a multi-point welding method capable of certainly welding an object having a number of points to be welded for a short time. First, an approximately cylindrical base body is formed by alternately laminating a flat sheet and a corrugated sheet and then winding them in a spiral shape. In this case, there exist a number of contact points of the flat sheet to the corrugated sheet, that is, points to be welded. Next, there is provided an electrode apart from one end surface of the base body by a specified interval and facing to the end surface. After that, by intermittently applying a current across the electrode and the one end surface of the base body thereby intermittently generating electric discharges between the electrode and the one end surface of the base body, to thus fuse and weld the points to be welded of the flat sheet to the corrugated sheet. With this arrangement, it is possible to certainly weld multi-points to be welded for a short time by only intermittently applying electric discharges.
    • PCT No.PCT / JP91 / 01543 Sec。 371日期:1992年7月13日 102(e)日期1992年7月13日PCT 1991年11月11日PCT PCT。 出版物WO92 / 08571 日期为1992年5月29日。公开是一种多点焊接方法,能够在短时间内焊接要焊接的点数的物体。 首先,通过交替地层叠平板和波纹板,然后将它们卷绕成螺旋形状而形成大致圆筒形的基体。 在这种情况下,平面片与波纹片之间存在多个接触点,即被焊接点。 接下来,提供了一个电极,该电极与基体的一个端面隔开规定的间隔并面向端面。 之后,通过间歇地在电极和基体的一个端面上施加电流,从而间断地在电极和基体的一个端面之间产生放电,从而熔化并焊接基体的待焊接点 平板到瓦楞纸。 通过这种布置,通过仅间歇地施加放电,可以在短时间内焊接多点焊接。
    • 10. 发明授权
    • Step motor and method for recording position signal of motor rotor
    • 用于记录电机转子位置信号的步进电机和方法
    • US5239218A
    • 1993-08-24
    • US566033
    • 1990-08-13
    • Ichiro HashimotoGiichi Ishida
    • Ichiro HashimotoGiichi Ishida
    • H02P8/00H02K29/08H02K37/18
    • H02K37/18H02K29/08
    • A step motor which comprises a stator having a winding wound therearound, a rotor rotatably provided with respect to the stator, a multiplicity of pole teeth formed on mutually opposing faces of the stator and rotor, a position detector for detecting a position of the rotor, and switching means for changing over a phase current flowing through the winding wound around the stator on the basis of a position signal indicative of the position of the rotor, wherein the pole teeth and a position detectable portion are integrally formed on a rotary yoke of the rotor and the position detectable portion is detected by the position detector. A method for recording a position signal of the rotor in the step motor, wherein, when the position detectable portion is made in the form of a magnetic recording medium, the pole teeth are formed on a predetermined surface of a rotary yoke of the rotor, a magnetic recording medium is provided on a surface of the rotary yoke which is not provided with the pole teeth, and a position detecting signal is magnetically recorded on the magnetic recording medium with respect to a reference position of the pole teeth.
    • 一种步进电动机,包括定子绕组绕组的绕组,相对于定子可转动地设置的转子,形成在定子和转子相互相对的面上的多个极齿,用于检测转子位置的位置检测器, 以及切换装置,用于根据指示转子位置的位置信号来改变流过缠绕在定子上的绕组的相电流,其中极齿和位置可检测部分一体形成在转子的旋转磁轭上 转子和位置检测部分由位置检测器检测。 一种用于在步进电动机中记录转子的位置信号的方法,其中当位置可检测部分形成为磁记录介质时,极齿形成在转子的旋转磁轭的预定表面上, 在没有设置极齿的旋转磁轭的表面上设置磁记录介质,并且相对于磁极的参考位置将位置检测信号磁记录在磁记录介质上。