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1. 发明专利

JPS5663255A DISEASE STATE DIAGNOSING DEVICE 失效
公开(公告)号：JPS5663255A
公开(公告)日：1981-05-29
申请号：JP14061379
申请日：1979-10-30
申请人： HITACHI LTD
发明人： MIYAGI HIROYUKI , TAKADA YOSHITADA , MIURA JIYUNKICHI , TAKI MAMORU
IPC分类号： G01N30/86 , G01N33/50 , G06F17/00
摘要： PURPOSE:To secure an effective application for the diagnosis of the disease state, by integrating the chromatogram of the organism liquid with every peak and then showing the relation between the integrated value and the holding time in a 2- dimensional diagram or into the 2-dimensional matrix. CONSTITUTION:The components in the organism liquid are separated and detected via the liquid or gas chromatograph, and an integration is given to peaks of the chromatograph individually. Based on this data, a 2-dimensional diagram or a matrix is produced for the relation between the holding time and the peak area (integrated vaue). The data of a subject are compared with the data showing the upper and lower limits of a healthy person which is filed previously to give a study whether the data of the subject is within the healthy region or not. If the subject is within the healthy region, the data with no fault are delivered to stop the operation of decision. But in case some component exceed the healthy region, the data of the subject are compared with the data of patients field according to the states of disease. Thus the corresponding or approximate data are looked for and obtained, and then the name of the corresponding disease or an approximate disease is delivered.

2. 发明专利

JPS5664781A APPARATUS FOR ANALYZING ENZYME ACTIVITY 失效
公开(公告)号：JPS5664781A
公开(公告)日：1981-06-02
申请号：JP14060779
申请日：1979-10-30
申请人： HITACHI LTD
发明人： SHIRATO FUSAO , MIURA JIYUNKICHI , MIYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： C12M1/34
摘要： PURPOSE:To analyze the amylase activity and glucose in a living body fluid with a high accuracy, by means of the first immobilized enzyme reactor of GOD, oxygen detectors and the second immobilized enzyme reactor of GOD in order along the flow path of the sample liquid. CONSTITUTION:A living body fluid sample, e.g. serum or urine, is introduced from a sample inlet 2 into a flow path, and beta-glucose in the living body fluid is passed through the first immobilized enzyme reactor 3a of GOD and hydrolyzed. The living body fluid after the reactor 3a is passed through an immobilized starch column 4 and an immobilized enzyme reactor 5 of an alpha-glucosidase to an immobilized enzyme reactor 7 of mutarotase. Oxygen equivalent to the beta-glucose is consumed in the second immobilized enzyme reactor 3b of GOD and the oxygen amounts before and after the reactor 3b are detected by oxygen detectors 8a and 8b to indicate the difference in output signal in a recorder 10, and the beta-glucose concentration is calculated from the reading.

3. 发明专利

JPS5576951A ANALYSIS OF COMPONENT SUBSTANCE RELATED WITH LIVING BODY 失效
公开(公告)号：JPS5576951A
公开(公告)日：1980-06-10
申请号：JP15010478
申请日：1978-12-06
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , TAKI MAMORU , MIYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： G01N30/34 , G01N33/50
摘要： PURPOSE:To enable to analyze a large number of components for a short time, by gradually increasing an acetic acid eluate in an eluate with the progress of analysis and by augmenting a chloride in the said water solution by degrees when analyzing the components by means of an ion-exchange chromatograph method. CONSTITUTION:When analyzing the substance components of a living body structure, urine, etc. by means of an ion-exchange chromatograph method under the feed of an acetic acid elution water solution, an acetic acid elute in said water solution is gradually increased with the advance of analysis in the low concentration of a range that a base line of a chromatogram is not raised but is effective for separating each component. A soluble chloride is simultaneously added into said water solution so as to augment with the progress of analysis. It is preferable that the each component molarity of the acetic acid elute is increased step by step between 0.006- 1.0mol/l, and NH4Cl, NaCl, LiCl, etc. are employed as the chloride added to the aqueous eluate.

4. 发明专利

JPS54162596A CARBON TUBE FOR FLAMELESS ATOMIZER 失效
公开(公告)号：JPS54162596A
公开(公告)日：1979-12-24
申请号：JP7081978
申请日：1978-06-14
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , MIYAGI HIROYUKI
IPC分类号： G01N21/31 , G01N21/74
摘要： PURPOSE:To obtain a carbon tube for flameless atomizer for atomic absorption analysis capable of performing measurement of superior sensitivity, accuracy, reproducibility by covering the surface with a heat-resisting metal or compound. CONSTITUTION:A covering layer 2 of about 10 to 300mu thick composed of a heat- resisting metal or compound is formed through plating or vapor deposition on the surface (a part or whole) of a graphite-made carbon tube 1 which is provided with a sample injection hole 3 and added with a carbon electrode 5, whereby the carbon tube for flameless atomizer is provided. The application of the abovementioned covering results in that there are virtually no measuring objects which will cause decreased sensitivity and that in the analysis of the elements forming stable carbides an increase in sensitivity by about 5 to 10 times is rather admitted. Further good results with respect to reproducibility may be obtained.

5. 发明专利

JPS5661646A ANALYZING METHOD FOR URINE 失效
公开(公告)号：JPS5661646A
公开(公告)日：1981-05-27
申请号：JP13813079
申请日：1979-10-25
申请人： HITACHI LTD
发明人： TAKI MAMORU , MIURA JIYUNKICHI , MIYAGI HIROYUKI , TAKADA YOSHITADA , KARINO SHIGETAKA , TSUKADA KATSUO , ITOU MITSUO
IPC分类号： G01N33/493 , G01N30/34 , G01N30/88 , G01N33/48
摘要： PURPOSE:To prevent the deposition of salt in the eluates for the analysis of urine and the corrosion of the stainless piping system by specifying the eluates. CONSTITUTION:Eluates 1A-1F to be supplied through a multiple-way valve 2 and a feed pump 3 to a sample injection port 4 are liquids of phosphate-chloride- acetonitrile whose concentrations are raised stepwisely within the ranges: 0-0.5M ammonium phosphate, 0-0.5M ammonium chloride and 0-50vol% acetonitrile. The eluates 1A-1F are successively supplied to the sample injection port 4, and a sample such as urine is absorbed by an equilibrated separation column 5. The absorbed sample is separated into constituents, which are successively introduced to a detector 6, and the detection results are recorded on a recorder 7. By adding phosphate, the salt concentrations of the eluates 1A-1F are less than 1/10 of those of conventional methods. Therefore, the deposition of salt and the corrosion of the stainless piping system can be prevented.

6. 发明专利

JPS5661632A LIQUID CHROMATOGRAPH 失效
公开(公告)号：JPS5661632A
公开(公告)日：1981-05-27
申请号：JP13812979
申请日：1979-10-25
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , TAKI MAMORU , MIYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： G01N21/27 , G01N21/31 , G01N30/74
摘要： PURPOSE:To permit a liquid chromatograph to automatically analyze a living body fluid by adding to it memories and the like for storing two kinds of data: the hold time and the ratio of the detection signals at specific two wavelengths. CONSTITUTION:Successively connected to a photometer 8 are memories 10a and 10b, display 11, data processor 12, retriever 13, disk memory 14 and printer 15, which are controlled by a microcomputer 18 having a control interface 16, magnetic card 17 and input key panel 19. Thus, the outputs from a plurality of photoactive elements are stored in the memory 10a at specific time intervals, before being processed in the data processor 12 to obtain the hold time of the eluted constituent and the absorbance at each wavelength during the time as well as compute each ratio of the absorbances at two wavelengths, and each pair of the value and the hold time is stored in the memory 10b. The content is taken out for the retriever 13 to retrieve the forecast data on the analytical object filed in the disk memory 14, and the content is printed on the printer 15.

7. 发明专利

JPS5465119A MANUFACTURE OF WELDED STAINLESS STEEL TUBE WITH CORROSION RESISTANCE 失效
公开(公告)号：JPS5465119A
公开(公告)日：1979-05-25
申请号：JP13079877
申请日：1977-11-02
申请人： HITACHI LTD
发明人： SUZUKI KATSUMI , MIURA JIYUNKICHI , TANNO KAZUO
IPC分类号： B21C37/08 , C21D7/00 , C21D8/10 , C21D9/08
摘要： PURPOSE:To manufacture the title steel tube by forcing the surface of a slender stainless steel to be mechanically worked to form a specific depth of a subboundary layer and finishing a welded tube after which the tube is soln. heat treated at a specific temp. to make the surface grain size fine. CONSTITUTION:The surface of a slender stainless steel sheet is forced to be mechanically worked by shot blasting or the like to form a subboundary layer up to about 50mu depth. The sheet is then formed into a tube and welded to finish a welded tube. This tube is soln. heat treated at around 1000 deg.C to make the surface grain size as fine as below 25mu (micro-grain size no. 8). Thus, elution of corrosive products is made more difficult, resulting in improved corrosion resistance.

8. 发明专利

JPS58144744A PROCESSOR FOR CHROMATOGRAPH DATA 失效
公开(公告)号：JPS58144744A
公开(公告)日：1983-08-29
申请号：JP2733382
申请日：1982-02-24
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , TAKADA YOSHITADA
IPC分类号： G01N30/86 , G06F17/00
摘要： PURPOSE:To reduce a storing capacity, by a method wherein, a relative area and a relative peak height are computed from chromatogram obtained by a plurality of detectors and sensors, and a matrix is formed with the resultant values and a holding time. CONSTITUTION:Output signals X1-Xn from detectors 1a-1n or sensors 2a-2n are inputted to a CPU7, and are temporarily stored as a holding time, a temporary peak height, and a temporary peak area at each peak. After a processing such as correction of a base line is conducted at each detector, other peak height and peak area are divided with a reference peak height and peak area to find a relative peak height and peak area. A new matrix is formed with a holding time, and a peak area of a reference peak, and a relative peak height and peak area obtained by other detector, and through combination of a matrix of an independent peak therewith, it is filed in a memory unit 8 at each analyzing sample.

9. 发明专利

JPS5663256A LIQUID CHROMATOGRAPH 失效
公开(公告)号：JPS5663256A
公开(公告)日：1981-05-29
申请号：JP13902979
申请日：1979-10-26
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , TAKI MAMORU , MIYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： G01N30/88 , G01N30/86
摘要： PURPOSE:To increase the accuracy of reproduction for the analysis data, by obtaining both the holding time and the column efficiency for one of the identified uric acid, hippuric acid and indole acetic acid each and then displaying them with every execution of analysis. CONSTITUTION:The three components, the uric acid, hippuric acid and indole acetic acid, are contained in a high probability in any kind of urine. Thus if both the holding time and the peak duration are obtained for either one of the above three components, the monitor is possible for the state of the separation column 5. Based on the holding time and the peak duration, the column efficiency is obtained via the data processor 12 and with every execution of analysis and then displayed on the display unit 11. The initial value of both the holding time and the column efficiency each is written into the magnetic card 17 through the input key panel 19 and under the condition of each column and separation. And in case the column efficiency of every execution of analysis shifts to the initial value and by an amount over the fixed range, the microcomputer 18 stops the operation of the liquid sending pump 3 via the control interface 16.

10. 发明专利

JPS55103462A ANALYSIS METHOD FOR URINE COMPOSING MATERIAL 失效
公开(公告)号：JPS55103462A
公开(公告)日：1980-08-07
申请号：JP1046179
申请日：1979-02-02
申请人： HITACHI LTD
发明人： MIURA JIYUNKICHI , TAKI MAMORU , MIYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： G01N33/493 , G01N30/34 , G01N30/88 , G01N33/50
摘要： PURPOSE:To increase both the detection accuracy and the detection wavelength region as well as reduce the analysis time by giving the stepped or continuous change to the density of the elution aqueous solution containing the chloride and acetonitrile. CONSTITUTION:In the analysis of the gradient elution ion exchange chromatography for the urine composing materials of various kinds of organic acid such as the urine composing material, the organism related materials, the nucleic acid or the like, the sample is led via pump 2 to isolation column 4 which is balanced previously by the water to be absorbed to the anion exchange resion for the component elements. Then gradient unit 8 is actuated to give change to the density of the chloride and acetonitrile in the elution aqueous solution from 0.001M-3.0M and from 0.1 capacity % to 30 capacity % each along with lapse of the analysis time for the aqueous solution mentioned above composed of acetonitrile and the chloride composed of the potassium chloride of low and high density in tanks 1A and 1B each, and then the aqueous solution is supplied to column 4. The urine composing materials absorbed into the resion mentioned above are isolated into each component and then detected by ultraviolet ray absorption meter 5, and then the output signals are recorded 6 in accordance with the amount of each component.

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