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21. 发明专利

JPS6481891A CARBONACEOUS PITCH AND PRODUCTION THEREOF 失效
公开(公告)号：JPS6481891A
公开(公告)日：1989-03-28
申请号：JP23793187
申请日：1987-09-22
申请人： KOBE STEEL LTD
发明人： HAMAGUCHI MASAMOTO , NISHIZAWA SETSU
IPC分类号： C10C3/08 , C08F220/54 , C10C3/02 , C10C3/10 , D01F9/15
摘要： PURPOSE:To obtain carbonaceous pitch capable of producing high-performance carbon yarn relatively inexpensively, containing an n-hexane soluble component, a quinoline-insoluble component and a component insoluble in n-hexane and soluble in benzene in a specific ratio. CONSTITUTION:Carbonaceous pitch which contains (A)

22. 发明专利

JPS6383197A PRODUCTION OF SPINNING PITCH FOR PRODUCTION OF CARBON FIBER 失效
公开(公告)号：JPS6383197A
公开(公告)日：1988-04-13
申请号：JP22919186
申请日：1986-09-26
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI , YUMITORI SHUJI
IPC分类号： C10C3/02 , C10C3/08 , D01F9/14 , D01F9/15
摘要： PURPOSE:To easily obtain the title pitch having a uniform quality free from solid matter, such as free carbon, and having a desired softening point, by mixing predetermined amts. of fractions of coal pitch preped. by making use of particular alicyclic hydrocarbon, arom. hydrocarbon and heterocyclic arom. compd. solvent. CONSTITUTION:Coal pitch (A), such as coal tar pitch or a coal liquefaction product, is extracted with an alicyclic hydrocarbon solvent (B) having a solubility parameter of 7.5 or less (e.g., hexane), an arom. hydrocarbon solvent (C) having a solubility parameter of 8.0-9.5 (e.g., benzene), and a heterocyclic arom. compd. solvent (D) having a solubility parameter of 10.0 or more (e.g., pyridine) to obtain extraction fractions of the component (A). 20wt% or less fraction soluble in the component (B) is mixed with 10-50wt% fraction insoluble in the component (B) and soluble in the component (C) and 40-70wt% fraction insoluble in the component (C) and soluble in the component (D).

23. 发明专利

JPS6219743A METHOD FOR EVALUATING QUALITY OF RAW MATERIAL PITCH FOR CARBON FIBER 失效
公开(公告)号：JPS6219743A
公开(公告)日：1987-01-28
申请号：JP15778585
申请日：1985-07-17
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI
IPC分类号： G01N24/00 , C10C3/02 , D01F9/145 , G01R33/44 , G01R33/46
摘要： PURPOSE:To exactly evaluate the characteristic of pitch as a raw material for carbon fibers by subjecting the pitch or the like to a nuclear magnetic resonance spectral analysis, positioning the pitch in the carbon skeleton of component carbon and determining the constitution ratio of the positioning. CONSTITUTION:The carbon fibers consist of the carbon skeleton and the characteristic of the raw material pitch which affects the quality thereof needs to be correctly known. The pitch is thereupon subjected to the nuclear magnetic resonance spectral analysis and is positioned in the carbon skeleton of the component carbon. The positioning is executed by making analysis with long chain aliphat. methylene carbon, methylene group carbon directly bound with an arom. ring, the carbon in the alpha position or beta position with respect to the arom. ring of the aliphat. side chain substd. with the arom, ring and the carbon in the alpha position or beta position with respect to the arom. ring among naphthene rings and determining the constituting ratio with the respective carbons. Since the quality of the raw material pitch is evaluated by the nuclear magnetic resonance analysis, the characteristic of the raw material pitch is exactly judged and the generation of the trouble in the actual production stage is prevented.

24. 发明专利

JP2001239393A WELDING WIRE 失效
公开(公告)号：JP2001239393A
公开(公告)日：2001-09-04
申请号：JP2000050349
申请日：2000-02-25
申请人： KOBE STEEL LTD
发明人： NISHIZAWA SETSU , MIZUNO MASAO , SHIMIZU HIROYUKI , ASAI NORIHIRO
IPC分类号： B23K35/36
摘要： PROBLEM TO BE SOLVED: To provide a welding wire which is able to restrain spattering, even if using a wire without copper-plating. SOLUTION: The graphite which has the face-to-face dimension d002 from 0.3353 nm to 0.3372 nm induced by the peak position of (002) diffraction radiation, and an amount from 0.005 to 5 g per wire 10 kg, exists on the surface or directly under the surface. And desirably the MoS2 which has particle size from 0.1 to 30 μm and an amount from 0.01 g to 2 g per wire 10 kg, exists on the surface or directly under the surface. Moreover, preferably at least one more kind of oil selected from a group composed of vegetable oil, animal oil, mineral oil, and composite oil, which has total amount from 0.2 g to 3 g per wire 10 kg, exists.

25. 发明专利

JPH11145133A SILICON SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPH11145133A
公开(公告)日：1999-05-28
申请号：JP30707497
申请日：1997-11-10
申请人： KOBE STEEL LTD
发明人： OWAKI TAKESHI , NISHIZAWA SETSU , TAKEDA MIKAKO , KUSUMOTO SHIGENORI
IPC分类号： H01L29/16 , H01L21/316
摘要： PROBLEM TO BE SOLVED: To obtain an excellent reliability, by forming a semiconductor device, using a silicon wafer having on the surface a naturally oxidized film having a peak position of a longitudinal optical mode of Si-O stretching vibration in a specific range. SOLUTION: In case of forming a naturally oxidized film by a cleaning method by the use of hydrogen peroxide water, effect of voids in a naturally oxidized film on a silicon wafer surface remains in a silicon semiconductor device. If these voids are reduced, it becomes possible to obtain a silicon semiconductor device excellent in reliability (endurability, etc.). Accordingly, it becomes possible to obtain a silicon semiconductor device excellent in reliability, by performing its formation by the use of a silicon wafer having a peak position of an LO(longitudinal optical) mode of Si-O stretching vibration in the naturally oxidized film on the silicon wafer surface before the formation of an insulating film at 1,200 cm to 1,251 cm , i.e., a silicon wafer having on the surface the naturally oxidized film having the peak position (absorbing position) of the LO mode of the Si-O stretching vibration at 1,200 cm to 1,251 cm .

26. 发明专利

JPH1187189A MANUFACTURE OF ALUMINUM FOIL FOR ELECTROLYTIC CAPACITOR 失效
公开(公告)号：JPH1187189A
公开(公告)日：1999-03-30
申请号：JP23841997
申请日：1997-09-03
申请人： KOBE STEEL LTD
发明人： SAKATA MARIKO , ASAKAWA YOSHIHIKO , SAKURAI MASANORI , OWAKI TAKESHI , NISHIZAWA SETSU
IPC分类号： C25F3/04 , C23G5/02 , H01G9/055
摘要： PROBLEM TO BE SOLVED: To obtain an aluminum foil in which homogeneity of an etched pit is high, in which a pit density is high and which ensures a large capacitance, by a method wherein a nonaqueous organic solvent is used as a cleaning agent and an acid gas at a specific temperature or lower is used as an atmosphere gas for drying. SOLUTION: An aluminum ingot whose purity is 99.6% or higher is soaked, hot-rolled and cold-rolled, thereby forming an aluminum-foil rolled coil. Then, a rolled oil which is stuck to the foil rolled coil is degreased and cleaned by trichloroethylene which is a nonaqueous organic solvent and which does not contain moisture. After that, the foil rolled coil is dried in the air which is dried by a cooler and whose dew point is at 0 deg.C or lower, and an oxide film which is generated on the surface of an aluminum foil is made dense. It is preferable that a cleaning and drying process is executed at a stage at which a foil thickness is thin after the cold rolling operation of the aluminum foil, whose foil thickness is five times a final foil thickness.

27. 发明专利

JPH08313461A EVALUATING METHOD OF DEGREE OF SACCHARINITY OF FRUIT 失效
公开(公告)号：JPH08313461A
公开(公告)日：1996-11-29
申请号：JP12135995
申请日：1995-05-19
申请人： JAPAN MAGNET TECHNOL KK , MAKI MFG CO LTD , KOBE STEEL LTD
发明人： KIMURA NORIYUKI , SUZUKI MOTOFUMI , MIKI TAKASHI , HAYASHI SEIJI , SAITO KAZUNARI , NISHIZAWA SETSU
IPC分类号： G01N24/08 , A23N15/00 , G01N33/02
摘要： PURPOSE: To evaluate the degree of saccharinity of a fruit in a nondestructive manner and quickly by measuring longitudinal and lateral relaxation time of a nucleus of hydrogen in a water molecule contained in fruit juice. CONSTITUTION: When a watermelon 15 is put in the center of a bore of a main coil 1, that is, in a static magnetic field in the direction of the axis (z), a magnetic field moment of a spin of a nucleus of hydrogen of fruit juice precesses around an axis parallel to the axis (z). While a gradient magnetic field is impressed 2 in the direction of the axis (z), a selective 90-degree pulse is impressed by a probe coil 3 and a slice area in the direction of the axis (z) is limited. Then only the spin in a specific slice plane intersecting the axis (z) perpendicularly changes direction at an angle of 90 degrees. When a time Te of impression passes after the same operation is executed also in the directions of the axes (x) and (y), an echo signal is obtained. The echo signal observed from outside is only the one from an area wherein three orthogonal slices overlap one another, and by executing slice selection so that this area may coincide with the area wherein the degree of saccharinity is to be evaluated, evaluation for the specified area can be performed. Accordingly, the central area of 10×10×10(mm) is selected and longitudinal and lateral relaxation time T1 and T2 are measured from the echo signals obtained with the time Te varied.

28. 发明专利

JPH0582873B2 失效
公开(公告)号：JPH0582873B2
公开(公告)日：1993-11-22
申请号：JP11501486
申请日：1986-05-20
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI , YUMITORI SHUJI
IPC分类号： C10C3/00 , C10C3/02 , D01F9/14 , D01F9/145

29. 发明专利

JPH02187492A PRODUCTION OF MESOPHASE PITCH FOR HIGH-PERFORMANCE CARBON FIBER 失效
公开(公告)号：JPH02187492A
公开(公告)日：1990-07-23
申请号：JP715089
申请日：1989-01-14
申请人： KOBE STEEL LTD
发明人： HAMAGUCHI MASAKI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , YUMITORI SHUJI , SAWA MARIKO
IPC分类号： C10C3/02 , C10C3/08 , C10C3/10 , D01F9/145 , D01F9/15
摘要： PURPOSE:To obtain pitch having excellent spinnability and giving carbon fiber having mechanical properties comparable to PAN-based carbon fiber by extracting solvent of hydrogenated carbonaceous pitch in two stages at specific conditions. CONSTITUTION:Hydrogenated carbonaceous pitch is subjected to primary solvent extracting treatment using (mixed) solvent such as BTX to obtain primary solvent-insoluble component containing >=60% benzene-insoluble component and having >=180 deg.C softening point. Next, said solvent-insoluble component is subjected to secondary solvent extracting treatment using (mixed) solvent such as pyridine, N-methylpyrrolidone or ethylene diamine to obtain secondary solvent-soluble component containing

30. 发明专利

JPS63145420A HEAT TREATMENT OF PITCH CARBON YARN 失效
公开(公告)号：JPS63145420A
公开(公告)日：1988-06-17
申请号：JP28806186
申请日：1986-12-02
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI , YUMITORI SHUJI
IPC分类号： D01F9/32 , D01F9/14
摘要： PURPOSE:To efficiently obtain pitch carbon yarn without causing end breakage, crimping of yarn, etc., by winding pitch yarn round a heat-resistant bobbin having electrical conductivity, carbonizing or graphitizing. CONSTITUTION:Pitch yarn is wound round a heat-resistant bobbin (e.g. ceramic bobbin of silicon carbide type, etc.) having electrical conductivity, made infusible under heating, electric current is sent to the bobbin and the carbon yarn is carbonized or graphitized to give pitch carbon yarn.

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