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1. 发明授权

US3869319A Wear resistant deposited steel 失效
标题翻译：耐磨沉积钢
公开(公告)号：US3869319A
公开(公告)日：1975-03-04
申请号：US32464573
申请日：1973-01-18
申请人： HITACHI LTD
发明人： ISHIHARA JOO , KAGOHARA HIROMI , NAGAI MASAICHI , OHUCHI YASUSHI
IPC分类号： C22C33/04 , B23K35/30 , B23K35/32 , C22C37/00 , C22C38/00 , C22C39/50 , B32B15/04 , B32B15/18
CPC分类号： B23K35/3093 , B23K35/327 , Y10T428/12097 , Y10T428/12819 , Y10T428/12979
摘要： Hard and wear resistant deposited steel including martensite base and vanadium-carbide dispersed therein with the amount of vanadium of 32 to 40 percent in weight. A method for producing the hard and wear resistant steel, said method comprising steps of compression forming powder materials into a welding rod, melting the rod in a non-oxidizing atmosphere by means of a heat produced by an electric arc discharge, and heat treating the solidified substance thus obtained. The invention further provides a novel use of the steel thus produced.
摘要翻译：硬质耐磨沉积钢包括分散在其中的马氏体基体和钒 - 碳化钒，其中钒的量为32〜40重量％。一种生产耐磨耐磨钢的方法，所述方法包括以下步骤：将粉末材料压缩成焊条，通过电弧放电产生的热量在非氧化性气氛中熔化棒，并将由此得到的固化物。本发明还提供了如此制备的钢的新颖用途。

2. 发明专利

DE3852727D1 未知
公开(公告)号：DE3852727D1
公开(公告)日：1995-02-23
申请号：DE3852727
申请日：1988-07-22
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： TANAKA AKIRA , SHIMADA SATOSHI , NAKAGAWA YUSAKU , YAMADA KAZUJI , NISHIHARA MOTOHISA , MIYOSHI TADAHIKO , KAGOHARA HIROMI , BABA NOBORU , INAMURA ICHIRO
IPC分类号： H01J35/10
摘要： A method for generating X-rays in an X-ray tube (10), comprises the steps of rotating an X-ray target (17) of a rotating anode (16), the X-ray target having a metal coated layer (23) thereon, of applying electron beams (18) emitted from a cathode (15) onto the metal coated layer (23) of the X-ray target, and of offsetting thermal deformation of the X-ray target (17) due to the application of said electron beams by deformation of the X-ray target (17) due to centrifugal force, thereby maintaining a position of the X-ray target (17) in a direction of the application of the electron beams, at a room temperature of the X-ray target, thus generating the X-rays.

3. 发明专利

DE3326544A1 Gas turbine casing 未知
公开(公告)号：DE3326544A1
公开(公告)日：1985-02-07
申请号：DE3326544
申请日：1983-07-22
申请人： HITACHI LTD
发明人： KAGOHARA HIROMI , FUKUI YUTAKA , SAKAMOTO MASAHIKO , IIZUKA NOBUYUKI
IPC分类号： C22C30/00 , C22C38/40 , F02C7/28
摘要： The invention relates to a material for a gas turbine casing, consisting of 0.25-0.7% by weight of C, 20-35% by weight of Cr, 20-40% by weight of Ni and iron as the remainder, and having an austenitic structure. The content of .-phase is less than 5% and the Nv value (number of electron gaps) is less than 2.8.

4. 发明专利

DE3852727T2 未知
公开(公告)号：DE3852727T2
公开(公告)日：1995-05-18
申请号：DE3852727
申请日：1988-07-22
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： TANAKA AKIRA , SHIMADA SATOSHI , NAKAGAWA YUSAKU , YAMADA KAZUJI , NISHIHARA MOTOHISA , MIYOSHI TADAHIKO , KAGOHARA HIROMI , BABA NOBORU , INAMURA ICHIRO
IPC分类号： H01J35/10
摘要： A method for generating X-rays in an X-ray tube (10), comprises the steps of rotating an X-ray target (17) of a rotating anode (16), the X-ray target having a metal coated layer (23) thereon, of applying electron beams (18) emitted from a cathode (15) onto the metal coated layer (23) of the X-ray target, and of offsetting thermal deformation of the X-ray target (17) due to the application of said electron beams by deformation of the X-ray target (17) due to centrifugal force, thereby maintaining a position of the X-ray target (17) in a direction of the application of the electron beams, at a room temperature of the X-ray target, thus generating the X-rays.

5. 发明专利

DE3672709D1 未知
公开(公告)号：DE3672709D1
公开(公告)日：1990-08-23
申请号：DE3672709
申请日：1986-07-31
申请人： HITACHI LTD
发明人： TSUCHIYA MASATOSHI , OGIHARA SATORU , KAGOHARA HIROMI , OTSUKA KANJI , OISHI TOMOJI
IPC分类号： H01L23/057 , H01L23/10 , H01L23/15 , H01L23/495 , H01L25/065 , H01L23/04 , H01L23/14
摘要： An integrated circuit package has a semiconductor element (1) mounted on an insulating substrate (4) which has a coefficient of thermal expansion from 35 to 40 x 10 -7 /°C and a high thermal conductivity, preferably a sintered product of silicon carbide. The substrate (4), and the element (1) are covered by a cap (5) which has a coefficient of thermal expansion of 20 to 55 x 10 -7 /°C and an airtight seal is provided by sealing glass (6) which has a coefficient of thermal expansion from 30 to 55 x 10 -7 /°C. Leads (3) extend through the glass (6) and are connected to the substrate (1) via wires (2). The leads have a coefficient of thermal expansion less than 40 x 10- 7 / °C, e.g. an alloy of iron containing nickel and cobalt. In this way the coefficient of thermal expansion of the leads (3) is set approximately equal to, or less than the coefficient of thermal expansion of the substrate (4), and this prevents cracking of the glass (6) when the package cools from the glass sealing temperature, or when the package is tested by thermal cycles.

6. 发明专利

DE69020829T2 未知
公开(公告)号：DE69020829T2
公开(公告)日：1996-03-14
申请号：DE69020829
申请日：1990-09-18
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAGOHARA HIROMI , HAMA HIROMU , NAKAGAWA MITSUO , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： B22D17/20 , C23C2/00 , F16C13/04 , F16C33/04 , B21D53/10

7. 发明专利

DE69020829D1 未知
公开(公告)号：DE69020829D1
公开(公告)日：1995-08-17
申请号：DE69020829
申请日：1990-09-18
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAGOHARA HIROMI , HAMA HIROMU , NAKAGAWA MITSUO , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： B22D17/20 , C23C2/00 , F16C13/04 , F16C33/04 , B21D53/10

8. 发明专利

JPH04124064A PRODUCTION OF HIGHLY HEAT-CONDUCTIVE SILICON CARBIDE 失效
公开(公告)号：JPH04124064A
公开(公告)日：1992-04-24
申请号：JP24401690
申请日：1990-09-17
申请人： HITACHI LTD
发明人： KAGOHARA HIROMI , MATSUMOTO TAKESHI
IPC分类号： C04B35/565 , C04B35/56
摘要： PURPOSE:To level the color tone of a sintered product by adding a transition metal oxide on the preparation of highly heat-conductive silicon carbide. CONSTITUTION:A transition metal oxide is added as the third element to a highly heat-conductive silicon carbide containing =95wt.% of silicon carbide as main components. The transition metal oxide is preferably titanium dioxide and is added in an amount of preferably 100-700ppm.

9. 发明专利

JPH03221816A FLOWMETER 失效
公开(公告)号：JPH03221816A
公开(公告)日：1991-09-30
申请号：JP1603290
申请日：1990-01-29
申请人： HITACHI LTD , TOKICO LTD
发明人： YASUTOMI YOSHIYUKI , WATABIKI SEIJI , SOFUE MASAHISA , KAGOHARA HIROMI , OKOCHI NORIHIKO , HAMA HIROSHI , FUKUSHIMA MASANORI , OYAGI TOSHIO , IMAMURA KYOJI
IPC分类号： G01F3/10 , G01F15/14
摘要： PURPOSE:To improve wear resistance, high-speed operating characteristic and corrosion resistance by constituting the flowmeter of ceramics parts consisting of >=1 kinds of the inorg. compds. selected from a carbide, nitride, oxynitride, oxide, and boride and having density and =1 kinds of the inorg. compds. selected from a carbide, nitride, oxynitride, oxide, and boride and having density and

10. 发明专利

JPH0344402A COMPOSITION FOR POWDER COMPACTING 失效
公开(公告)号：JPH0344402A
公开(公告)日：1991-02-26
申请号：JP17812289
申请日：1989-07-12
申请人： HITACHI LTD
发明人： WATABIKI SEIJI , YASUTOMI YOSHIYUKI , KAGOHARA HIROMI
IPC分类号： C04B35/632 , B22F3/02 , B22F5/00 , C04B35/00
摘要： PURPOSE:To obtain a composition for manufacturing high density compact body at room temp. by volatilizing solvent after mixing powder of metal or ceramic to the solvent dissolving the specific organic binder, pressurizing and compacting the pulverized and graded composition, removing organic binder and sintering. CONSTITUTION:The ceramic powder of SiC, etc., is mixed at 50 - 90vol% ratio with solution obtd. by dissolving 10 - 50vol% binder for organic series compacting consisting of isobutylene having 10 - 5,000 poise viscosity at the room temp., -20 - 20 deg.C fluidity point and 50 - 2,000 molecular wt. as the essential component and copolymer material produced by reaction with n-butene as a part into the solvent of n-hexane, etc., having 10 - 300mmHg vapor or pressure at 20 deg.C, and after making the powder composition having 10 - 10 poise viscosity at the room temp., the n-hexane is volatized. Successively, the mixed material is pulverized and graded to manufacture the composition for powder compacting and after pressurizing and compacting this, the binder is removed by heating and the sintering is executed.

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