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1. 发明专利

JP2001026837A HEAT RESISTANT STEEL 失效
公开(公告)号：JP2001026837A
公开(公告)日：2001-01-30
申请号：JP2000181358
申请日：2000-06-16
申请人： HITACHI LTD
发明人： SHIGA MASAO , FUKUI HIROSHI , MAENO YOSHIMI , TAKAHASHI SHINTARO , KURIYAMA MITSUO , SUWA MASATERU , KANEKO RYOICHI , TAN TOSHIMI , ONODA TAKESHI , WATANABE YASUO , KAJIWARA HIDEFUMI , HIRAGA MAKOTO
IPC分类号： C21D9/38 , C22C38/00 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/54 , F01D5/02 , F01D5/06 , F01D5/14 , F01D5/28
摘要： PROBLEM TO BE SOLVED: To provide a heat resistant steel having strength at high temperature >=350 deg.C and low heat embrittlement. SOLUTION: This steel has a composition containing, by weight, 0.15 to 0.4% C,

2. 发明专利

JPH10183294A STEAM TURBINE ROTOR SHAFT AND HEAT RESISTANT STEEL 失效
公开(公告)号：JPH10183294A
公开(公告)日：1998-07-14
申请号：JP2294898
申请日：1998-02-04
申请人： HITACHI LTD
发明人： SHIGA MASAO , FUKUI HIROSHI , MAENO YOSHIMI , TAKAHASHI SHINTARO , KURIYAMA MITSUO , SUWA MASATERU , KANEKO RYOICHI , TAN TOSHIMI , ONODA TAKESHI , WATANABE YASUO , KAJIWARA HIDEFUMI , HIRAGA MAKOTO
IPC分类号： F01D5/28 , C22C38/00 , C22C38/46 , C22C38/48
摘要： PROBLEM TO BE SOLVED: To provide a high- and low-pressure integrated type steam turbine rotor shaft 5 increased in high temp. strength, minimal in heating embrittlement, and capable of plating a >=30-in. moving blade at least at the finial step, its production, and a heat resistant steel. SOLUTION: The high- and low-pressure integrated type steam turbine shaft and the heat resistant steel are composed of an Ni-Cr-Mo-V low alloy steel having a composition which contains, by weight, 0.15-0.4% C,

3. 发明专利

JPH08264765A POWER CHIP CARRIER AND POWER SEMICONDUCTOR DEVICE USING THE SAME 失效
公开(公告)号：JPH08264765A
公开(公告)日：1996-10-11
申请号：JP6733395
申请日：1995-03-27
申请人： HITACHI LTD
发明人： ONUKI HITOSHI , KATO MITSUO , MORITA TOSHIAKI , SATO MITSUO , YAMADA KAZUJI , KOBAYASHI HIDEO , NAGASE HIROSHI , SUWA MASATERU
IPC分类号： H01L29/78
摘要： PURPOSE: To improve reliability, handling properties, manufacturing properties, and cooling efficiency, by metallographically joining the cathode electrode and the anode electrode of an MOS controlled power semiconductor element to a cathode side inner electrode and an anode side inner electrode. CONSTITUTION: A cathode electrode 303 and a collector electrode 304 of an Si substrate 301 are rigidly metallographically bonded to inner electrodes 307, 308. A gate electrode 309 arranged around an IGBT is connected with a gate terminal 311 through a wire. These are sealed with resin 313. The capacity of an IGBT is dependent also on the performance and the size of the Si substrate, and about 500-3000V and 50-300A. In the range of this capacity, application in this state is possible. Since the cathode electrode and the collector electrode of the IGBT are bonded to the inner electrodes 307, 308, heat can be made to escape from both sides. Thereby the thermal resistance and the reliability are improved and a wire bonding part is hardly deteriorated.

4. 发明专利

JPH03179246A OPERATING CONDITION MONITORING SYSTEM FOR PLANT AND ELECTROCHEMICAL ELECTRODE USED THEREFOR 失效
公开(公告)号：JPH03179246A
公开(公告)日：1991-08-05
申请号：JP20502790
申请日：1990-08-03
申请人： HITACHI LTD
发明人： SAKAI MASANORI , MABUCHI KATSUMI , ARATO TOSHIAKI , TAKAHASHI TAKUYA , IZUMITANI MASAKIYO , MASAOKA ISAO , KOJIMA YOSHIYUKI , INAGAKI MASATOSHI , OSUMI KATSUMI , HAYASHI MAKOTO , SATO FUMIO , SUWA MASATERU , AKAHORI KIMIHIKO , BABA KENJI , YAMAUCHI HIROSHI , ONAKA NORIYUKI
IPC分类号： G01N17/02 , G01N27/26 , G01N27/27 , G01N27/30 , G01N27/333 , G01N27/401 , G01N27/403 , G01N27/416 , G01N27/48 , G01N33/18 , G21C17/02 , G21C17/022
摘要： PURPOSE:To obtain a highly reliable monitoring system by arranging an electrochemi cal electrode for inspecting quality of water used for a nuclear power plant or the like to be made up of an electrolytic layer containing ions of an electrode material, a non-liquid permeating porous ceramic layer surrounding it, an electrode material contacting the electrolytic layer and a terminal provided thereon. CONSTITUTION:An internal electrode for reference provided in a core of a nuclear reactor pressure vessel is constructed by a method as follows: alumina or zirconia is applied on both sides of a silver wire 26 and a silver halide 23 is attached to a part having no ceramic coating. Then, an alumina coating 22 is applied on the surface of the silver halide with a thickness of hundreds of mum and an air ratio of less than 70% and moreover, an alumina coating 24 is applied on the outer circumference thereof with a thickness of several mm and air ratio of less than 10% to form a sensor section. Then, a lower part of the sensor is wrapped with an SUS guard 21 having a pore and a lead 31 of the SUS is connected to one end of the silver wire 2. A space between the guard 21 and the lead 31 is filled with magnesia 28 as insulating agent and the end thereof is sealed by glass 30.

5. 发明专利

JPH0342153A CONTINUOUS CASTING MACHINE FOR CAST STRIP 失效
公开(公告)号：JPH0342153A
公开(公告)日：1991-02-22
申请号：JP17547089
申请日：1989-07-10
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： YASUDA TAKESHI , KODAMA HIDEYO , HIRANO SATOSHI , HANAWA AKIO , KOBAYASHI MITSURU , OKAYAMA AKIRA , SUWA MASATERU , KIMURA TOMOAKI , NISHINO TADASHI , MORIWAKI SABURO
IPC分类号： B22D11/06
摘要： PURPOSE:To easily develop solidified shell on long side mold and to smoothly draw a cast strip downward by making heat conductivity in the long side mold material at part adjacent to both side edge parts of short side mold equal or more to or than the heat conductivity the main material constituting both side edge parts of the short side mold. CONSTITUTION:The side edge parts 12 of short side mold 5 is made of copper and the material of belt 2 is made of copper showing the heat conductivity equal to the heat conductivity in the short side mold 5. By this method, the solidified shell on the sort side mold 5 is integrally developed with the solidified shell formed on the long side mold, and sticking or abnormal growth on the short side mold are eliminated and breakout is eliminated. The short side is made to smoothly draw downward and the cat strip having excellent quality can be stably obtd.

6. 发明专利

JPS6433006A PRODUCTION OF SUPERCONDUCTING OXIDE AND SUPERCONDUCTING DEVICE 失效
公开(公告)号：JPS6433006A
公开(公告)日：1989-02-02
申请号：JP8510288
申请日：1988-04-08
申请人： HITACHI LTD
发明人： KATO TAKAHIKO , WADAYAMA YOSHIHIDE , AIHARA KATSUZO , OGIWARA MASAHIRO , KUNIYA JIRO , MISAWA YUTAKA , KOZONO YUZO , MATSUDA SHINPEI , SUWA MASATERU , NISHINO JUICHI , KAWABE USHIO , HASEGAWA HARUHIRO , TAKAGI KAZUMASA , FUKAZAWA TOKUMI , MIYAUCHI KATSUMI
IPC分类号： C01G3/00 , C01B13/14 , C01G1/00 , C04B35/00 , C04B35/45 , C04B41/80 , H01B12/00 , H01B13/00 , H01F6/06 , H01F41/04 , H01L39/12 , H01L39/14 , H01L39/24
摘要： PURPOSE:To transform a nonsuperconducting material to a superconducting material, to improve characteristics of a superconductor having low superconductivity, and to enable prepn. of a superconducting coil or circuit, etc., without working the coil or the circuit, etc. CONSTITUTION:An oxygen concn. at a position of a crystal lattice of an oxide is enriched or reduced by irradiating a nonconducting oxide or a conducting oxide (e.g. perovskite compound oxide) with corpuscular beam (e.g. O ion or H ion) or electromagnetic radiation. By the method, a nonsuperconductor is partially transformed to a superconductor, or a superconductor is transformed partially to a nonsuperconductor. By the application of this method, an insulator 71 is formed by, for example, forming an oxide superconductor 70 by sputtering an insulating film 60 of a semiconductor element 50, masking then a part for distributing wiring, and executing ion-doping selectively. A semiconductor device having a multilayered wiring is obtd. by the repetition of this method.

7. 发明专利

JPS6199606A Production of composite powder 失效
标题翻译：生产复合粉末
公开(公告)号：JPS6199606A
公开(公告)日：1986-05-17
申请号：JP22157784
申请日：1984-10-22
申请人： Hitachi Ltd
发明人： KOMURO KATSUHIRO , KURODA TETSUO , SUWA MASATERU
IPC分类号： B22F9/02 , B22F9/08 , C22C1/10 , C22C47/00 , C22C47/08
摘要： PURPOSE: To obtain easily composite powder at a low cost by penetrating ceramics into a molten metal by using elements contributing to wetting and atomizing the molten metal under stirring.
CONSTITUTION: ≥1 Kinds of the elements which are selected from Ca, Ti, Cr, Mg, V, Zr, Nb, etc. and contribute to the wetting to ceramics are preliminarily incorporated into the molten metal or alloy thereof. The ceramic particles or ceramic fibers are then charged to the surface of the molten metal and are penetrated into the molten metal by improving the wetting between the particles or fibers and the molten metal. Carbide, oxide, nitride, etc. are used for the ceramics. A gaseous pressure or water pressure is acted to the molten metal column from a nozzle under stirring of such molten metal by which the atomized composite powder is obtd.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在搅拌下使用有助于润湿和雾化熔融金属的元素将陶瓷渗入熔融金属中，以低成本获得易于复合的粉末。构成：> = 1预先将从Ca，Ti，Cr，Mg，V，Zr，Nb等中选择的各种元素和有助于陶瓷润湿的元素并入其熔融金属或其合金中。然后将陶瓷颗粒或陶瓷纤维装入熔融金属的表面，并通过改善颗粒或纤维与熔融金属之间的润湿而渗透到熔融金属中。硬质合金，氧化物，氮化物等用于陶瓷。在这种熔融金属的搅拌下，从喷嘴对熔融金属柱施加气体压力或水压，通过该熔融金属可以获得雾化的复合粉末。

8. 发明专利

JPS6112014B2 JPS6112014B2 - 失效
公开(公告)号：JPS6112014B2
公开(公告)日：1986-04-05
申请号：JP1046778
申请日：1978-02-03
申请人： Hitachi Ltd
发明人： SUWA MASATERU , KOMURO KATSUHIRO , SOENO HIROSHI
IPC分类号： C21C1/08 , C22C33/08 , C22C37/00

9. 发明专利

JPS60198851A HIGH CORROSION RESISTANT HIGH HARDNESS ALUMINUM ALLOY WIRE FOR SEMICONDUCTOR 失效
公开(公告)号：JPS60198851A
公开(公告)日：1985-10-08
申请号：JP5570984
申请日：1984-03-23
申请人： HITACHI LTD
发明人： TSUCHIYA MASATOSHI , SUWA MASATERU , OONUKI HITOSHI , TAGUCHI KAZUO , IIZUKA TOMIO
IPC分类号： H01L21/60 , C22C21/00 , H01L23/49
摘要： PURPOSE:To obtain an aluminum alloy wire having high bonding strength and high corrosion-resisting property by a method wherein the second noble element having no solubility for Al and the third element having solubility for Al are contained in Al. CONSTITUTION:In order to improve the corrosion-resisting property of a corrosion-resisting Al alloy wire, the second noble element having no substantial solubility for Al is contained in Al. The second element consists of one or two kinds selected from the group of Au, Ni and Pd. Also, the third element having solubility for Al is added for the purpose of increasing the degree of hardness of a ball without impairing the corrosion-resisting property of the corrosion- resisting Al alloy wire. Said third element is the element which is selected from the group of Cu, Mg, Ti and Zr. As a result, the corrosion-resisting Al alloy wire having the hardness of Hv30 or above in the ball hardness in normal temperature can be obtained. Accordingly, high bonding strength and a high corrosion-resisting property can be obtained.

10. 发明专利

JPS60148132A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS60148132A
公开(公告)日：1985-08-05
申请号：JP347684
申请日：1984-01-13
申请人： HITACHI LTD
发明人： KOIZUMI MASAHIRO , OONUKI HITOSHI , SUWA MASATERU
IPC分类号： H01L21/60
摘要： PURPOSE:To improve the junction strength of junction parts in a semiconductor device and to upgrade the reliability of the junction parts by a method wherein the crushing diameter of each ball at the junction parts is set in a specific extent. CONSTITUTION:The crushing diameter of each ball at the junction parts of aluminum films 3 and aluminum alloy wires 1, which have been both provided on a silicon substrate 5, is set in an extent of (a), (b), (c), and (d) as shown by the diagram. As a result, the junction strength of the junction parts is improved and the reliability of the junction parts is upgraded.

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