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91.发明授权
公开(公告)号：US5372702A
公开(公告)日：1994-12-13
申请号：US871917
申请日：1992-04-22
申请人： Takashi Kojima , Hitoshi Sakamoto
发明人： Takashi Kojima , Hitoshi Sakamoto
CPC分类号： C04B35/532 , C04B35/83
摘要： The improved composition for use in the production of composite carbon materials comprises a mesophase pitch containing at least 80% of an optical anisotropic phase and having a softening point of no higher than 250.degree. C., and sulfur present in an amount of 6-35 parts by weight per 100 parts by weight of said mesophase pitch. Said composition may be heated together with an aggregate and subsequently shaped to yield a composite carbon material. The improved process for producing a composite carbon material comprises impregnating an aggregate with said composition as it is melted, shaping the mixture in a temperature range of 150.degree.-350.degree. C, and then carbonizing the shaped part.
摘要翻译： 用于生产复合碳材料的改进的组合物包括含有至少80％的光学各向异性相并且软化点不高于250℃的中间相沥青，并且硫存在量为6-35 每100重量份所述中间相沥青重量份。 所述组合物可以与骨料一起加热并随后成型以产生复合碳材料。 用于生产复合碳材料的改进方法包括在熔融时将组合物浸渍在所述组合物中，在150-350℃的温度范围内使混合物成形，然后使成形部分碳化。
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92.发明授权
公开(公告)号：US4698699A
公开(公告)日：1987-10-06
申请号：US694300
申请日：1985-01-24
申请人： Hitoshi Sakamoto , Takayuki Okafuji
发明人： Hitoshi Sakamoto , Takayuki Okafuji
CPC分类号： G11B5/592
摘要： A video signal reproducing apparatus comprises a rotary magnetic head which reproduces a video signal recorded on a magnetic tape, a rotator which rotates the rotary magnetic head to cause the same to scan the magnetic tape intermittently along a oblique path thereon, a head supporting member, such as a compound piezoelectric plate element, which supports the rotary magnetic head to rotate in accordance with the rotation of the rotator and to shift the position of the rotary magnetic head in the direction of the axis for rotation thereof in response to the level of a control signal supplied thereto, and a signal generator which produces a signal acting as the control signal in a "trick" reproducing mode and having such level variations as to cause the head supporting member to have a swinging movement in a period in which the rotary magnetic head is not in contact with the magnetic head, which affects to cancel a swinging movement of the head supporting member occuring in a period in which the rotary magnetic head scans the magnetic tape.
摘要翻译： 视频信号再现装置包括：再现记录在磁带上的视频信号的旋转磁头;使旋转磁头旋转的旋转体，使旋转磁头沿其斜向路径间歇地扫描磁带;磁头支撑部件， 例如复合压电板元件，其支撑旋转磁头根据旋转体的旋转而旋转，并且响应于水平的旋转磁头沿轴线的方向移动以使其旋转的位置 提供给其的控制信号，以及信号发生器，其以“特技”再现模式产生作为控制信号的信号，并且具有这样的电平变化，使得头部支撑构件在旋转磁体 头部不与磁头接触，这影响了在w周期内发生头部支撑构件的摆动运动 旋转磁头扫描磁带。
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公开(公告)号：US4549235A
公开(公告)日：1985-10-22
申请号：US670669
申请日：1984-11-13
申请人： Hitoshi Sakamoto
发明人： Hitoshi Sakamoto
CPC分类号： G11B5/588 , Y10S358/907
摘要： An apparatus for reproducing video signals recorded on a recording medium in successive parallel tracks having a predefined pitch and which are skewed relative to a direction of movement of the medium comprises a signal transducer which repeatedly scans the recording medium in a direction along the tracks for reproducing the video signals from the successive tracks upon movement of the medium at a predetermined speed, a transducer deflecting device which is responsive to drive signals and which deflects the signal transducer in a direction transverse to the direction of the tracks, a circuit which generates a plurality of types of jump signals of different respective amplitudes to cause the transducer deflecting device to select the track scanned by the signal transducer, each type of jump signals corresponding to a displacement of the signal transducer by a respective number of track pitches, a phase detector which detects a phase signal included in the video signal reproduced by the signal transducer and which generates reproduced phase signals therefrom, a speed detector which detects the predetermined speed of the medium and which generates detected speed signals in response thereto, a selector responsive to control signals selectively supplying one of the types of jump signals to the transducer deflecting device when the signal transducer reaches an end of each of the successive tracks, and a controller responsive to the reproduced phase signals and the detected speed signals and which generates the control signals for the selector.
摘要翻译： 用于再现记录在记录介质上的具有预定间距并且相对于介质移动方向倾斜的记录介质的视频信号的装置包括信号转换器，该信号传感器在沿着轨道的方向上重复扫描记录介质以便再现 在介质以预定速度移动时来自连续轨道的视频信号，响应于驱动信号并使信号换能器沿横向于轨道方向偏转的换能器偏转装置，产生多个 的各种振幅的跳跃信号的类型，以使换能器偏转装置选择由信号转换器扫描的轨道，每种类型的跳跃信号对应于信号换能器的位移由相应数量的轨道间距，相位检测器 检测由该再现的视频信号中包括的相位信号 信号传感器，并且其从其产生再现的相位信号;速度检测器，其检测介质的预定速度并响应于此产生检测到的速度信号;响应于选择性地将这些类型的跳跃信号提供给换能器偏转的控制信号的选择器 当信号传感器到达每个连续轨道的末端时，控制器，以及响应于再现的相位信号和检测到的速度信号并且产生用于选择器的控制信号的控制器。
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公开(公告)号：US4500097A
公开(公告)日：1985-02-19
申请号：US572320
申请日：1984-01-20
CPC分类号： G01D5/34769 , Y10S277/918
摘要： In a seal device in a displacement measuring instrument, comprising a hollow case fixed to one member, a connecting rod for imparting a displacement of the other member to a displacement detecting mechanism housed in the hollow case through the opening and seal members disposed at opposite sides of the opening, for shielding a penetrating portion of said connecting rod, to enhance the drip-proof performance, a difference is given between the positions of the forward ends of lip members constituting said seal members, whereby the forward end of the lip member disposed at one side where liquid drops are generated is projected farther than the forward end of the lip member disposed at the other side, and/or a liquid receiving groove extending along the opening is provided at least at one side of the inner surface of the hollow case, liquid drain holes are formed in the bottoms of the liquid receiving grooves, filters for excluding dust intruding from outside are provided in the liquid drain holes, and/or liquid breaking means for precluding a liquid flow intruding from outside of the hollow case are provided on the outer peripheral surface of the connecting rod.
摘要翻译： 在位移测量仪器的密封装置中，包括固定到一个构件的中空壳体，连接杆，用于通过设置在相对侧的开口和密封构件将另一构件移动到容置在中空壳体中的位移检测机构 的开口部，为了遮蔽所述连杆的贯通部，为了提高防滴漏性，在构成所述密封部件的唇部件的前端的位置之间存在差异，由此唇部件的前端设置 在产生液滴的一侧比设置在另一侧的唇缘部件的前端更远，并且/或沿着开口延伸的液体接收槽至少设置在中空部分的内表面的一侧 在液体容纳槽的底部形成液体排出孔，在液体抽屉中设置用于排除从外部侵入的灰尘的过滤器 在连接杆的外周面上设置有用于排除从中空壳体外部侵入的液体流的液体破裂装置和/或液体破坏装置。
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公开(公告)号：US4486796A
公开(公告)日：1984-12-04
申请号：US575266
申请日：1984-01-30
申请人： Hitoshi Sakamoto
发明人： Hitoshi Sakamoto
IPC分类号： H04N5/7826 , G11B5/588 , G11B21/10 , G11B27/02 , G11B27/024 , G11B5/52 , G11B21/04
CPC分类号： G11B5/588 , G11B21/10 , G11B27/024
摘要： The position of a rotary head mounted on a deflection device is controlled as the head scans successive tracks on a record medium. Tracking drive signals are generated as a function of the deviation of the head relative to a track scanned thereby. The tracking drive signal is sampled at successive locations along the trace. Previously stored samples are compared to the sucessively produced samples, and any difference is used to correct the stored sample by a predetermined amount irrespective of the actual difference. Hence, the stored samples gradually are corrected to represent the configuration of the tracks scanned by the rotary head. When the head reproduces signals from the record medium, the generated tracking drive signals are used to control the deflection device so as to make the head coincident with the track being scanned thereby. When the head is used to record signals, the stored samples are used to control the deflection device before such samples are corrected. For recording, the stored samples may be compared to reference samples, and gradually are corrected to conform to the reference samples, and used to control the deflection device so that the traces gradually conform to the configuration represented by the reference samples.
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公开(公告)号：US4229773A
公开(公告)日：1980-10-21
申请号：US967100
申请日：1978-12-07
申请人： Hitoshi Sakamoto
发明人： Hitoshi Sakamoto
IPC分类号： H04N5/7826 , G11B5/588 , G11B5/592 , G11B21/10
CPC分类号： G11B5/588
摘要： An apparatus for recording and reproducing a video signal in successive parallel track sections on a moving recording medium includes a rotary head assembly having a movable recording-reproducing head whose tracking position can be adjusted in the direction transverse to the length of the track sections, and a fixed auxiliary reproducing head which is in a following position in respect to the movable recording-reproducing head. During recording, the transverse position of the movable recording-reproducing head is corrected on the basis of the reproduced output of the fixed auxiliary head so as to be eventually in alignment with the path scanned by the latter.
摘要翻译： 一种用于在移动记录介质上的连续平行轨道部分中记录和再现视频信号的装置包括具有可移动记录再现头的旋转磁头组件，其跟踪位置可以在横向于轨道部分的长度的方向上被调节，以及 相对于可移动记录再现头处于下一位置的固定辅助再现头。 在记录期间，基于固定辅助头的再现输出来校正可移动记录再现头的横向位置，以便最终与由后者扫描的路径对准。
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公开(公告)号：US4206485A
公开(公告)日：1980-06-03
申请号：US844988
申请日：1977-10-25
申请人： Hitoshi Sakamoto
发明人： Hitoshi Sakamoto
CPC分类号： G11B15/1808 , H02P23/186 , Y10S388/901 , Y10S388/912
摘要： In a digital servo system suitable for controlling the rotational phase of a rotating body, such as, the rotary head drum of a video tape recorder (VTR), a binary output signal is provided, as a phase error signal, based upon the phase relation between a reference signal and a command signal showing the rotational phase of the rotary head drum, and such binary output signal is used to process a motor drive signal. Further, an analog servo system is used in association with the digital servo system to provide highly accurate correction of both high and low frequency phase errors.
摘要翻译： 在适于控制诸如磁带录像机（VTR）的旋转磁头鼓等旋转体的旋转相位的数字伺服系统中，基于相位关系提供二进制输出信号作为相位误差信号 在参考信号和表示旋转磁鼓的旋转相位的指令信号之间，并且使用这种二进制输出信号来处理电动机驱动信号。 此外，与数字伺服系统相关联地使用模拟伺服系统，以提供高精度和高频相位误差的校正。
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公开(公告)号：US4172265A
公开(公告)日：1979-10-23
申请号：US912028
申请日：1978-06-02
申请人： Hitoshi Sakamoto , Takeo Ohba , Yoshiaki Wakisaka
发明人： Hitoshi Sakamoto , Takeo Ohba , Yoshiaki Wakisaka
CPC分类号： G11B5/588
摘要： In an apparatus for reproducing video or other information signals recorded in a track on a magnetic tape or other record medium; a magnetic head or transducer is moved along the track for reproducing the information signals recorded therein while a bi-morph leaf which supports the head receives an electrical drive signal for deflecting the head in a direction transverse to that along the track. A deflection signal is generated in correspondence to the deflection of the head from a rest position by a circuit which includes a strain gauge fixed on the bi-morph leaf. A control circuit for controlling the deflection of the head includes an oscillator providing a dither oscillation signal which, on application to the bi-morph leaf, causes transverse oscillation of the head about a null position, an envelope detector detecting the envelope of the reproduced output of the head, a multiplier for synchronously demodulating the detected envelope by means of the deflection signal so as to obtain a tracking error signal accurately representative of the deviation of the null position of the head from the center of the track, and an adder adding the tracking error signal to the dither oscillation signal so as to provide therefrom the electrical drive signal and by which the null position of the oscillated head is aligned with the center of the track.
摘要翻译： 在用于再现记录在磁带或其他记录介质上的轨道中的视频或其他信息信号的装置中; 沿磁道移动磁头或换能器，以便再现记录在其中的信息信号，同时支持磁头的双向叶片接收电驱动信号，用于沿与轨道横向的方向偏转磁头。 通过包括固定在双变形叶上的应变计的电路，对应于头部从静止位置的偏转产生偏转信号。 用于控制头部偏转的控制电路包括提供抖动振荡信号的振荡器，该振荡信号在应用于双向叶片时导致头部在零位置的横向振荡，包络检测器检测再现输出的包络 的乘法器，用于通过偏转信号同步解调检测到的包络，以便获得准确地代表磁头的零位置与轨道中心的偏差的跟踪误差信号，以及加法器 跟踪抖动信号的误差信号，从而提供电驱动信号，通过该电驱动信号，摆动头的零位置与轨道的中心对准。
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99.发明授权Automatic head tracking system utilizing transducer deflecting means and synchronous demodulation of the envelope signal 失效自动头跟踪系统利用换能器偏转装置和包络信号的同步解调
公开(公告)号：US4163994A
公开(公告)日：1979-08-07
申请号：US911833
申请日：1978-06-02
CPC分类号： G11B5/588
摘要： In an apparatus for reproducing video or other information signals recorded in a track on a magnetic tape or other record medium; a magnetic head or transducer is moved along the track for reproducing the information signals recorded therein while a bi-morph leaf which supports the head receives an electrical drive signal for deflecting the head in a direction transverse to that along the track. A deflection responsive signal is generated in correspondence to the deflection of the head from a rest position, for example, in response to varying the capacitance of a capacitor formed of a fixed electrode and a movable electrode on the bi-morph leaf. A control circuit for controlling the deflection of the head includes an oscillator providing a dither oscillation signal which, on application to the bi-morph leaf, causes transverse oscillation of the head about a null position, an envelope detector detecting the envelope of the reproduced output of the head, a multiplier for synchronously demodulating the detected envelope by means of the deflection responsive signal so as to obtain a tracking error signal accurately representative of the deviation of the null position of the head from the center of the track, and an adder adding the tracking error signal to the dither oscillation signal so as to provide therefrom the electrical drive signal and by which the null position of the oscillated head is aligned with the center of the track.
摘要翻译： 在用于再现记录在磁带或其他记录介质上的轨道中的视频或其他信息信号的装置中; 沿磁道移动磁头或换能器，以便再现记录在其中的信息信号，同时支持磁头的双向叶片接收电驱动信号，用于沿与轨道横向的方向偏转磁头。 响应于改变由双变形叶片上的固定电极和可移动电极形成的电容器的电容，偏转响应信号对应于头部从静止位置的偏转产生。 用于控制头部偏转的控制电路包括提供抖动振荡信号的振荡器，该振荡信号在应用于双向叶片时导致头部在零位置的横向振荡，包络检测器检测再现输出的包络 用于通过偏转响应信号同步解调所检测的包络的乘法器，以获得准确地代表磁头的零位置与轨道中心的偏差的跟踪误差信号，以及加法器 跟踪误差信号到抖动振荡信号，从而提供电驱动信号，通过该电驱动信号，振荡头的零位置与轨道的中心对准。
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公开(公告)号：US11536516B2
公开(公告)日：2022-12-27
申请号：US16646045
申请日：2017-09-13
申请人： Hitoshi Sakamoto
发明人： Hitoshi Sakamoto
摘要： A heat-treating furnace has: a rotary shaft; a rotary bottom surface pivotally supported by the rotary shaft and rotates; a plurality of workpiece storage chambers arranged on the rotary bottom surface in a multi-stage torus configuration around an axis of the rotary shaft as a center; a hollow bell-shaped hot-blast guide disposed in a center of the torus configuration on the rotary bottom surface around the axis of the rotary shaft as a center so as to decrease a volumetric capacity in the furnace and to adjust a quantity of a hot blast fed in from above itself into the workpiece storage chamber on each stage; a furnace body bottom surface spaced away from the rotary bottom surface; and a furnace body lateral surface disposed on the furnace body bottom surface.
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