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1. 发明专利

JPS60191439A Positioning mechanism for knife edge 失效
标题翻译：刀刃定位机制
公开(公告)号：JPS60191439A
公开(公告)日：1985-09-28
申请号：JP4546184
申请日：1984-03-12
申请人： Hitachi Ltd
发明人： MURAOKA KOUJI , KANEDA NORIYA , TAKAHASHI SADAO
IPC分类号： G02B7/28 , G11B7/08 , G11B7/09
摘要： PURPOSE: To obtain the positioning mechanism which easily positions the knife- edge and is hardly affected by temperature variation by fixing the knife edge to one side of a leaf spring which is formed in a folding shape, and applying force to the other side of said spring and making a jogging adjustment of the knife edge.
CONSTITUTION: The device consists of the leaf spring 1, knife edge 3, leaf-spring fitting screw 4, and adjusting screw 5, and the knife-edge 3 is fixed to a fitting plate 2 molded integrally with the leaf spring 1 by adhesion, welding, etc. The leaf spring 1 is fixed with the fitting screw 4 and the end surface of the leaf spring is moved with the adjusting screw 5; and the leaf spring 1 deforms elastically at this time to exert its influence upon the knife edge side, and the knife edge is moved forth and back so that the motion of the adjusting screw is reduced. The movement extent of the knife-edge part is increased at a loading point and the movement extent at the loading point is converted into a rotational angle through the adjusting screw 5, so the knofe edge 3 is positioned easily. Further, the knife edge 3 hardly shifts in position owing to temperature variation and defocusing is detected stably.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了获得定位机构，其通过将刀刃固定在形成折叠形状的板簧的一侧，并且施加力到所述刀刃的另一侧，从而容易地定位刀刃并且几乎不受温度变化的影响弹簧并进行刀刃的慢跑调整。构成：该装置由板簧1，刀刃3，板簧装配螺钉4和调节螺钉5构成，刀刃3固定在与板簧1一体地通过粘接成形的嵌合板2上，焊接等。板簧1用配合螺钉4固定，板簧的端面用调节螺钉5移动; 此时，板簧1弹性变形，从而对刀刃侧产生影响，刀刃向前后移动，使得调节螺钉的运动减小。刀刃部的移动范围在加载点增加，并且通过调节螺钉5将装载点的移动范围转换成旋转角度，因此能够容易地定位e e边缘3。此外，由于温度变化，刀刃3几乎不位移，因此稳定地检测散焦。

2. 发明专利

JPS52114155A HEAT TRANSFER DEVICE 失效
公开(公告)号：JPS52114155A
公开(公告)日：1977-09-24
申请号：JP2993876
申请日：1976-03-22
申请人： HITACHI LTD
发明人： SENTORI MICHIO , HARA TOSHIJI , MURAOKA KOUJI , KASHIWARA YASUNARI , ABE TOSHITSUNE , UCHIDA MIKIKAZU , OSHIYAMA HIROICHI
IPC分类号： F28D15/06 , F28D15/00 , F28F27/00
摘要： PURPOSE:The heat transfer device with improved reliability and with simple structure having no movable part, which can start or stop heat transfer from the first evaporator to the first condenser only by puttin gon or cutting off power input to heater.

3. 发明专利

JPS60205216A POSITION DETECTION APPARATUS USING MOIRE FRINGES 失效
公开(公告)号：JPS60205216A
公开(公告)日：1985-10-16
申请号：JP6067384
申请日：1984-03-30
申请人： HITACHI LTD
发明人： MURAOKA KOUJI , MAEDA TAKESHI , TAKASAGO MASAHIRO , KANEDA NORIYA
IPC分类号： G01D5/36 , G01D5/38
摘要： PURPOSE:To always take out a stable detection signal by controlling variation, by providing two or more of light receiving surfaces to a light receiving element so as to shift the phases of detection signals respectively outputted from the light receiving surfaces by about 180 deg.. CONSTITUTION:An auxiliary moire fringe 2 is arranged in almost closely contacted relation to a movable moire fringe 1 so that single side slits thereof are perfectly superposed to the slits of the movable moire fringe 1 while the other side slits thereof are staggered therefrom and light receiving quantities and phases are perfectly shifted by 180 deg. and both slits become parallel. Further, a light receiving elements 4, 5 are respectively arranged in front of right and left slits of the auxiliary moire fringe 2 and a light receiving element 3 is arranged at the position of the almost equal distance from the light receiving elements 4, 5 so that the output levels of the light receiving elements 4, 5 are same and become max. By this mechanism, the variation in a position detection signal is reduced and the stability of positional determination control by moire fringes can be enhanced.

4. 发明专利

JPS51129962A HEAT TRANSMITTER DEVICE 失效
公开(公告)号：JPS51129962A
公开(公告)日：1976-11-11
申请号：JP5388475
申请日：1975-05-07
申请人： HITACHI LTD
发明人： HARA TOSHIJI , SENTORI MICHIO , MURAOKA KOUJI , KASHIWARA YASUNARI , ABE TOSHITSUNE , MASUDA TAKASHI , OSHIYAMA HIROICHI
IPC分类号： F28D15/06 , F28D15/00 , F28F27/00
摘要： PURPOSE:In heat exchanger in which layers of tubes are arranged outside the inner cylinder, said tubes may be provided easily in its assembling and disassembling every layers and at the same time the tolerances in manufacturing of tubes and tolerances in working of supporting tools.

5. 发明专利

JPS60256010A OPTICAL DISPLACEMENT DETECTING DEVICE 失效
公开(公告)号：JPS60256010A
公开(公告)日：1985-12-17
申请号：JP11073984
申请日：1984-06-01
申请人： HITACHI LTD
发明人： MURAOKA KOUJI , MAEDA TAKESHI
IPC分类号： G01D5/36 , G01D5/26
摘要： PURPOSE:To facilitate assembly and stabilize detecting signals, by bringing parallel slits between light source and movable slits, allowing only parallel fluxes and nearly parallel fluxes among the fluexes from the source to pass and allowing the light fluxes from the source to assume apparently parallel fluexes. CONSTITUTION:Parallel slits 2 consisting of parallel laminations of extremely thin plates are inserted between light source 1 and movable linear scale 3. On a fixed scale 4, an opening is provided with a pitch deviated by an angle of 180 deg.C of output phase detected by a light receiving surface 6 corresponding to the surfaces 6 and 7 of a light receiving element 5 in accompaniment with the movable scale 3. As the flux from the source 1 enters into the scale 3 after passing through the parallel slits 2, the flux is restricted by the slit widths of the slits 2 and the parallel fluexs and only nearly parallel fluxes out of the light from the source can be taken out.

6. 发明专利

JPS58169370A ACCESSING SYSTEM 失效
公开(公告)号：JPS58169370A
公开(公告)日：1983-10-05
申请号：JP5003582
申请日：1982-03-30
申请人： HITACHI LTD
发明人： MAEDA TAKESHI , UNO MOTOO , MIZOGUCHI YASUMITSU , TAKASAGO MASAHIRO , MURAOKA KOUJI
IPC分类号： G11B21/08 , G11B7/085
摘要： PURPOSE:To obtain an accessing system which is capable of positioning of high accuracy suitable for an optical disk, by executing a seek operation by use of an external positioning scale. CONSTITUTION:On a swing arm 1 of an optical head 2, a moire interference fringe scale 40 whose pitch interval is rougher than a track interval of an optical disk 3 is provided. Subsequently, a difference of a scale value corresponding to a target track and a scale value corresponding to a present track is set to a down-counter, and in accordance with an output of a moire detecting circuit 41, down-counting is executed. By this rough scale, the seek control is executed without generating overshoot, vibration, etc., and in accordance with a zero signal of an output of the down-counter, switching to the tracking control is executed by reading out a track by the head 2. According to this constitution, it is possible to obtain an accessing system which is capable of executing the positioning of high accuracy suitable for an optical disk for recording in high density.

7. 发明专利

JPS51150150A HEATTTRANSFER EQUIPMENT 失效
公开(公告)号：JPS51150150A
公开(公告)日：1976-12-23
申请号：JP7320075
申请日：1975-06-18
申请人： HITACHI LTD
发明人： SENTORI MICHIO , HARA TOSHIJI , KASHIWARA YASUNARI , MURAOKA KOUJI , ABE TOSHITSUNE , UCHIDA MIKIKAZU , OSHIYAMA HIROICHI
IPC分类号： F25D17/00 , F25D11/02 , F28D15/00 , F28D15/02 , F28D15/06 , F28F27/00
摘要： PURPOSE:A heat-transfer equipment with high reliability, low cost and easy maintenance and inspection which are accompliahed by controlling the conveyance of a large amount of heat with a small electric or heat input.

8. 发明专利

JPS59165252A Electromagnetic type beam deflecting device 失效
标题翻译：电磁型光束偏转装置
公开(公告)号：JPS59165252A
公开(公告)日：1984-09-18
申请号：JP3927383
申请日：1983-03-11
申请人： Hitachi Ltd
发明人： MURAOKA KOUJI , MAEDA TAKESHI , KANEDA NORIYA
IPC分类号： G02B26/10 , G11B7/08 , G11B7/09
CPC分类号： G11B7/0925
摘要： PURPOSE:To obtain a device suitable for positioning of an optical disk while improving positioning performance by fitting a reflecting mirror to a movable part and detecting its position through a photosensor, generating a speed signal by the position signal through a differentiating circuit, and providing negative feedback to a driving coil input and obtaining attenuating effect. CONSTITUTION:The reflecting mirror 10 is stuck by an adhesive to a fitting plate 6 for a driving coil 4 which positions the movable mirror 5. The photosensor 10 incorporates compactly a light emission part 1 and a photodetection part 12; and the light emission part 1 emits light corresponding to a power source 13-1, and the light is reflected by the reflecting mirror 10 to enter the photodetection part 12. The photodetection part 12 driven by the power source 13-b generates an output by receiving the light, and its output is inputted to the differentiation circuit consisting of amplifiers 14, 15, and 16, a resistance R, a capacitor C, etc., and converted from a position signal to a speed signal V. The speed signal v is fed back negatively to the input of the driving coil 4 to vary the voltage of the power source 13-a, realizing the damping effect.
摘要翻译：目的：为了获得适合光盘定位的装置，同时通过将反射镜装配到可动部件并通过光电传感器检测其位置，同时提高定位性能，通过微分电路通过位置信号产生速度信号，并提供负反馈到驱动线圈输入并获得衰减效果。构成：反射镜10被粘合剂粘贴到用于定位可动镜5的驱动线圈4的装配板6上。光电传感器10紧凑地结合发光部分1和光电检测部分12; 并且发光部1发射与电源13-1对应的光，并且光被反射镜10反射以进入光电检测部12.由电源13-b驱动的光检测部12产生由接收光，其输出被输入到由放大器14,15和16组成的微分电路，电阻R，电容器C等，并从位置信号转换为速度信号V.速度信号v 反向反馈到驱动线圈4的输入端，以改变电源13-a的电压，实现阻尼效果。

9. 发明专利

JPS58170354A LINEAR ACTUATOR 失效
公开(公告)号：JPS58170354A
公开(公告)日：1983-10-06
申请号：JP5167082
申请日：1982-03-30
申请人： HITACHI LTD , HITACHI ELECTR ENG
发明人： UNO MOTOO , KANEDA NORIYA , TOKUTOMI TERUAKI , MURAOKA KOUJI
IPC分类号： H02K33/18 , G11B21/02 , H02K41/035
摘要： PURPOSE:To reduce rigidity of a movable part and induction of elastic vibration mode, and to enhance positional precision of a recording and reproducing head by a method wherein a twin body type driving coil is used both as magnetic members and guide faces. CONSTITUTION:The cylindrical coils 1a, 1b to generate thrust are arranged in parallel mutually, and the magnetic members 2a, 2b are arranged in parallel penetrating respectively into the coils 1a, 1b thereof. The magnetic members 2a, 2b are constructed as to make magnets 21a, 21b and yokes 23a, 23b, 24a, 24b to face mutually interposing gaps 22a, 22b between them. The guide faces 25a, 25b, 26a, 26b have the inclination of nearly 45 deg. respectively in relation to the horizontal plane on the yokes 23a, 23b on one side. The coils 1a, 1b are connected by a plate 3, and moreover a frame 4 is connected to the plate 3. Rims 8a, 8b connect the sides of the coils 1a, 1b and the frame 4. The recording and reproducing head 41 is fixed on the frame 4.

10. 发明专利

JPS5891536A ACCESSING SYSTEM OF DIGITAL OPTICAL DISK 失效
公开(公告)号：JPS5891536A
公开(公告)日：1983-05-31
申请号：JP18786981
申请日：1981-11-25
申请人： HITACHI LTD
发明人： MAEDA TAKESHI , UNO MOTOO , MURAOKA KOUJI , TAKASAGO MASAHIRO , MIZOGUCHI YASUMITSU , KANEDA NORIYA
IPC分类号： G11B21/08 , G11B7/085 , G11B7/09 , G11B7/095 , G11B17/00
摘要： PURPOSE:To position an optical disk with high accuracy, by detecting a motion of a high accuracy positioning actuator, and driving the actuator which is interlocked with this motion and executes the positioning greatly. CONSTITUTION:A light beam emitted from a light source of an optical head passes through a substrate 11 on a disk and a UV resin 14 for constituting a guide groove 13, and forms a spot 50 on a metallic film 10. As this spot moves in the radial direction of the disk, a tracking signal 52 showing a shift of the track center and the spot center is varied as shown in figure (b). As for the tracking signal, the polarity is different depending on a position of the optical spot against the track, therefore, a passing direction of the track can be known. From the number of track passing edge signals 53 in case when a signal 91 which has compared said signal with ''0'' level becomes negative, the number of passing tracks can be known.

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