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101. 发明专利

JPS61179587A LIGHT SOURCE DEVICE 失效
公开(公告)号：JPS61179587A
公开(公告)日：1986-08-12
申请号：JP20167584
申请日：1984-09-28
申请人： HITACHI LTD
发明人： WATANABE MASATERU , KAWAKAMI SHIYUU , KANEDA NORIYA , KURIBAYASHI AKIRA , KUZE TSUTOMU , TAKAHASHI SADAO
IPC分类号： G11B7/125 , H01S5/00
摘要： PURPOSE:To prevent positional displacement due to thermal expansion by forming a section elastically deformed in the direction rectangular to the optical axis of a coupling lens to a member shaping a fixing frame. CONSTITUTION:Slits 41, 42 are cut to a member 4 fastening a semiconductor laser 1 and a coupling lens 2 by a fixing frame consisting of the combination of a member 3 and the member 4, and structure in which thermal expansion is absorbed is shaped. The difference of thermal expansion is generated by a temperature change, and force is generated on a coupling surface, but displacing force on the coupling surface is reduced largely by the slit 42, and the laser 1, the lens 2 and the fixing frame can be clamped sufficiently without generating slips by coupling by screws. The stiffness of the member 4 can be changed arbitrarily by altering the slotted depth and space of the slits 41, 42, thus giving elasticity sufficient for absorbing the difference of thermal expansion.

102. 发明专利

JPS60177248A ION MICROANALYZER 失效
公开(公告)号：JPS60177248A
公开(公告)日：1985-09-11
申请号：JP3241984
申请日：1984-02-24
申请人： HITACHI LTD
发明人： TAKAHASHI SADAO
IPC分类号： G01N23/225 , H01J37/22 , H01J37/252 , H01J37/256
摘要： PURPOSE:To facillitate the determination of an analyzing point, and to indicate clearly the determined position on a photograph by displaying the analyzing position on a sample simultaneously to the sample image. CONSTITUTION:Deflected electrode voltage controlling signals -VX-+VX are generated by a D/A converter 25, and are sent to a deflected electrode voltage generator 31 and a CRT28. A cursor controlling part 26 is operated by operating a cursor designating key 27, and a counter 24 is set to the value corresponding to the cursor position. A digital output 23 of the counter 24 and a digital output 33 of a counter 30 are sent to a comparator 21, a video signal controller 22 is controlled to rise the brightness of the CRT28 at the point where both are coincide with each other, and the cursor is displayed on the CRT28 simultaneously to the usual image. Here, when performing the spot analysis on the coincident point P of both cursors of X axis, Y axis, the signal of the output 33 is sent to the converter 25 by a selector 23, the electrode voltage controlling signal corresponding accurately to the position of the P point is sent out, and the spot analysis result 29 of the P point is obtained.

103. 发明专利

JPS6015099B2 失效
公开(公告)号：JPS6015099B2
公开(公告)日：1985-04-17
申请号：JP2086979
申请日：1979-02-26
申请人： HITACHI LTD
发明人： TAKAHASHI SADAO
IPC分类号： H01J49/26 , G01N27/62 , H01J49/30

104. 发明专利

JPS59185043A Optical disc device 失效
标题翻译：光盘设备
公开(公告)号：JPS59185043A
公开(公告)日：1984-10-20
申请号：JP5512583
申请日：1983-04-01
申请人： Hitachi Electronics Eng Co Ltd , Hitachi Ltd
发明人： KANEDA NORIYA , NAKAMURA SHIGERU , TOKUTOMI TERUAKI , TAKAHASHI SADAO
IPC分类号： G02B27/09 , G11B7/09 , G11B7/135
CPC分类号： G11B7/135 , G11B7/09
摘要： PURPOSE:To decrease the effect of variance in the distribution of a radiated light on a tracking characteristic by combining a triangular prism correcting the intensity distribution of light and the optical system at the post-stage in a specific direction. CONSTITUTION:The laser light outputted from a collimator lens 12 having the elliptic distribution taking the x axis as the minor axis and the y axis as the major axis is corrected with magnification in the x axis direction by the triangular prism 13 and after the light of nearly circular distribution goes straight in the z axis direction, the light is reflected in the y axis direction and irradiated onto a track T running in the x axis direction. Thus, the direction of intensity correction of a light spot S is made coincident with the direction of a pit of the track T to an information recording face of an optical disc, and even if a variation is produced in the intensity distribution of the spot S because of the variation in the correcting amount of the like of the triangular prism 13 or the intensity distribution of the output light of a semiconductor element 11, this variation appears in the lengthwise direction of the track and a nearly constant intensity distribution is obtained in the track width direction affected on the tracking characteristic, allowing nearly to uniform the tracking performance.
摘要翻译：目的：通过组合三角棱镜来校正光的强度分布和光学系统在特定方向的后期阶段，减少辐射光分布的变化对跟踪特性的影响。构成：从具有作为短轴的x轴和作为长轴的y轴的椭圆形分布的准直透镜12输出的激光通过三角棱镜13在x轴方向上被放大倍数校正，并且在近似圆形的分布在z轴方向上呈直线状，光沿y轴方向反射并照射到在x轴方向上行进的轨迹T. 因此，使光点S的强度校正方向与轨道T的凹坑的方向一致，到光盘的信息记录面，并且即使在斑点S的强度分布中产生变化由于三角棱镜13的校正量的变化或半导体元件11的输出光的强度分布的变化，这种变化出现在轨道的长度方向上，并且在轨道宽度方向受到跟踪特性的影响，允许跟踪性能几乎一致。

105. 发明专利

JPS5996193A THREE-FLUID SPRAYING NOZZLE FOR SLURRY 失效
公开(公告)号：JPS5996193A
公开(公告)日：1984-06-02
申请号：JP20610582
申请日：1982-11-26
申请人： HITACHI LTD
发明人： TANAKA SHINJI , MIYADERA HIROSHI , TAKAHASHI SADAO
IPC分类号： C10J3/50 , C10J3/46
摘要： PURPOSE:To provide a spraying nozzle which prevents solidification of fluid within a nozzle tip even when caking coal is used, having three passageways, i.e., a central passageway for aqueous slurry of coal, a peripheral passageway for heavy oil and an outermost peripheral passageway for steam or nitrogen, and having a mixing chamber at the top for mixing and spraying of a mixture of three fluids. CONSTITUTION:An aqueous slurry 13 consisting of coal particles and water is passed under pressure through a central passageway 1 for raw material slurry and is made to flow out through an outlet 3. A heavy oil 14 which is fed under pressure between a raw material feeding pipe 2 and a heavy oil feeding pipe 15, is passed through a passageway 17 for heavy oil and is extruded from the outlet 3 together with the aqueous slurry 13 so that it may adhere to the surface of coal particles in the slurry in a mixing chamber 18. Steam for spraying 12 which is sent under pressure into a passageway 10 formed by outer surface of the heavy oil feeding pipe 15 and inner surface of a steam pipe 9, is passed through a steam passage groove 5 made at the interface of a semi-conical plane 4 and a conical plane 6 and sprays the aqueous slurry 13 and the heavy oil 14 continuously through an outlet 11 for the mixture.

106. 发明专利

JPS58166542A OPTICAL HEAD 失效
公开(公告)号：JPS58166542A
公开(公告)日：1983-10-01
申请号：JP4824982
申请日：1982-03-26
申请人： HITACHI LTD
发明人： KANEDA NORIYA , TSUNODA YOSHITO , NAKAMURA SHIGERU , TAKAHASHI SADAO , YABUUCHI KOUICHI
IPC分类号： G02B7/28 , G11B7/09
摘要： PURPOSE:To prevent the generation of a tracking offset, by arranging the splitting axis of a two-split photodetector in parallel to a plane containing transmitted light and reflected light separated by a polarizing prism. CONSTITUTION:Diffracted light from a track 6 on an optical disk 5 is separated by the polarizing prism 8 into the transmitted light and reflected light, which are used by an automatic focusing control optical system 9 and a tracking control optical system. The luminous flux passed through the polarizing prism 8 has variation in light intensity distribution in parallel to the plane forming by the transmitted light and reflected light, but has no variation in light intensity distribution at rght angles to the plane. Therefore, the influence of the light intensity variation due to the polarizing prism 8 upon two photodetectors on the surface of the two-split photodetector 11 having the splitting axis parallel to said plane is completely equal and a tracking control signal obtained from a differential amplifier 12 is free of the influence of said light intensity variation.

107. 发明专利

JPS58135952A MASS SPECTROMETER 失效
公开(公告)号：JPS58135952A
公开(公告)日：1983-08-12
申请号：JP1752582
申请日：1982-02-08
申请人： HITACHI LTD
发明人： TAKAHASHI SADAO
IPC分类号： H01J49/26 , G01N27/62 , H01J49/02
摘要： PURPOSE:To enable a highly sensitive detection of element for selected mass by scanning an ion acceleration voltage or an ion acceleration voltage and a electric field voltage in a specified section while the scanning is held for a certain time or lowered in the speed for a certain time at a voltage value corresponding to a specified mass number. CONSTITUTION:The scanning of ion acceleration voltage is done at a certain speed while held V1-V4 for a fixed time at an acceleration voltage value corresponding to a peak top of a specified mass number. This produces large peaks m1-m4 at holding points as illustrated thereby enabling a highly sensitive detection of an element for a specified mass. Thus, a wide ranging masschromatograph is obtained while a highly sensitive detection is possible in terms of any specified mass.

108. 发明专利

JPS5715351A FD POWER SOURCE EMITTER CURRENT CONTROL CIRCUIT FOR MASS SPECTROMETER 失效
公开(公告)号：JPS5715351A
公开(公告)日：1982-01-26
申请号：JP8917280
申请日：1980-07-02
申请人： HITACHI LTD
发明人： MIMURA TADAO , YANO MASAYOSHI , TAKAHASHI SADAO
IPC分类号： G01N27/62 , H01J49/02 , H01J49/16
摘要： PURPOSE:To prevent the collection of unnecessary data, by holding the emitter current when the considering ion peak will exceed over free setting then starting the data sampling of a data processor on the basis of their output. CONSTITUTION:Prior to the starting of measurement the mass peak number and the data sampling times are previously stored, and when reaching to said stred mass peak number a hold signal is provided from a data processor 17 to a field desorption power source emitter current control circuit 50 to hold the current supply to an emitter 1 constant by said signal, while only the mass specter at this time is sampled to the data memory area thereby the operator can sample only the required mass specter to the data memory in the data processor 17 without monitoring the mass peak. In the drawing (12) is an ion source, (13) is an electric field, (14) is a magnetic field, (15) is a hole element and (16) is a detector.

109. 发明专利

JPS56147354A MASS SPECTROGRAPH 失效
公开(公告)号：JPS56147354A
公开(公告)日：1981-11-16
申请号：JP4918880
申请日：1980-04-16
申请人： HITACHI LTD
发明人： TAKAHASHI SADAO
IPC分类号： G01N27/62 , H01J49/32
摘要： PURPOSE:To enable the detection of meta-stable ions of particular ions, by scanning the intensity of magnetic field while scanning the electric field voltage when said intensity will reach the level corresponding to the peak of the mass number of the ion to be detected. CONSTITUTION:The component of the specimen analyzed by a gas chromatograph 1 will enter through an ion source 2 into an electric field 5 to be focused into a slit 6, then enters into a magnetic field 7 and detected by a collector 9. The electric field 5 and the magnetic field 7 are connected through D/A converters 11, 14 to an operation control section 12 to operate the magnetic field with predetermined period, and when the intensity of the magnetic field will reach the peak level of different mass number of every scan the voltage of the electric field 5 is operated. Consequently the meta-stable ion for the peak of mass number of ion having different mass number in time sharing can be obtained simultaneously within the period where the component material is resolved from the separated column.

110. 发明专利

JPS5648056A SPECTRUM MONITOR FOR MASS SPECTROMETER 失效
公开(公告)号：JPS5648056A
公开(公告)日：1981-05-01
申请号：JP12390679
申请日：1979-09-28
申请人： HITACHI LTD
发明人： MIMURA TADAO , TAKAHASHI SADAO
IPC分类号： G01N27/62 , H01J49/26
摘要： PURPOSE:To obtain an easy operation of a monitor, by automatically setting the voltage obtained by moving a zero point setting variable resistor and allowing the spectrum monitor to always start sweeping from its zero point even if a start point of the sweeping is changed. CONSTITUTION:When a zero point setting variable resistor 6 is held to zero potential and analog switches 4, 5 are turned on, output voltage can be kept at zero potential for any input signal to an operation amplifier 2. Here the turn-off operation of the analog switches 4, 5 simultaneously with the sweeping start of the input signal causes the output voltage to start sweeping from the zero point.

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