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71. 发明专利

JPS58144729A DETERMINATION OF GAS IN MOLTEN METAL 失效
公开(公告)号：JPS58144729A
公开(公告)日：1983-08-29
申请号：JP2735082
申请日：1982-02-24
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , SOFUE MASAHISA
IPC分类号： G01N1/22 , G01N33/20
摘要： PURPOSE:To perform a steady and high-precise quantitative determination of gas concentration irrespective of the size of a capacity of a molten metal, by a method wherein a measurement is conducted by sucking and collecting gas in the molten metal through rapid diffusion and emission of the gas by spraying inactive gas. CONSTITUTION:A high-speed nozzle 5, which partially blows inactive gas into a steel bath, is installed, the nozzle 5 being provided with an annular nozzle 3, which injects downward inactive gas and is located at the outer periphery of the nozzle 5, and a suction pipe 4 which collects gas therearound and is situated at the inside of the nozzle 5. In the measurement, inactive gas is injected through the nozzles 3 and 5, and a composite pipe is brought to approach the surface of the steel bath. A slug layer 2 is first removed partially by a gas jet stream. This causes the surface of the steel bath to be exposed to inactive gas, which results in diffusing and emitting hydrogen gas contained in the steel bath into atmosphere. A surrounding gas containing the gas emitted from the steel bath is fed to the outside of the system through the suction pipe 4 to determine a quantity of hydrogen in the gas.

72. 发明专利

JPS5870812A FILTERING SYSTEM 失效
公开(公告)号：JPS5870812A
公开(公告)日：1983-04-27
申请号：JP16707581
申请日：1981-10-21
申请人： HITACHI LTD
发明人： ADACHI TETSUROU , NISHIMURA SHIGEOKI , EBARA KATSUYA , OGAWA TOSHIO , TAKAHASHI SANKICHI , KUBOTA SHIYOUJI , TAKASHIMA YOSHIE , NUMAZAKI SEIICHI , IZUMI KENKICHI
IPC分类号： B01D37/02 , G21F9/00 , G21F9/06
摘要： PURPOSE:To prolong the filtering life of a filter medium, by carrying out operation precoating a filter element with the filter medium separately prior to treatment of raw water and during treatment thereof. CONSTITUTION:Powdery cation and anion exchange resins are introduced into a resin tank 17 in an amount of 0.1-2wt% and sent into a filter cylinder 16 by a pump 19 while mixed with pure water by a stirrer 18 to precoat a filter element 15 with said resins. In the next step, when raw water is sent into the filter cylinder 16 and, after treatment is starte, the powdery resins are thrown into the resin tank 17 in concn. almost same to that in case of the first precoating operation to be sent into raw water by a pump while mixed with pure water, the powdery resins in the raw water are precoated on the first resin layer on the element 15 of the filter cylinder 16 to further form a resin layer within a short time. As the result, the collection mechanism of iron clad can be prevented from being transferred to surface filtration in an early stage and an inner filtering process can be kept for a relatively long time and filtering life can be increased.

73. 发明专利

JPS56115604A DEFOAMING MACHINE 失效
公开(公告)号：JPS56115604A
公开(公告)日：1981-09-10
申请号：JP1913980
申请日：1980-02-20
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , EBARA KATSUYA , TAKAHASHI SANKICHI
IPC分类号： B01D19/02
摘要： PURPOSE:To enhance defoaming operation efficiency in eliminating foam with a basket screen, by recovering blocking solids stuck to the screen in the defoaming operation and the defoamed liquid separately from each other without mixing them. CONSTITUTION:Foam is fed into basket 1 of a defoaming machine provided with screen 3 on the inside diameter face of basket 1. The foam is dashed against screen face 3 and broken. The resultant broken foam liquid flows along the floor of basket 1 and discharged out of discharge hole 26. The substance contained in the foam becomes solid, and blocks screen 3, so screen 3 is turned inside out on the outside diameter face of basket 1 to disclose the solids outward, and revolving speed of basket 1 is raised. The solids stuck to screen 3 is peeled off and discharged out of solid outlet 32, thus permitting defoaming effect of screen 3 to be restored by removal of the solids, and deterioration of deforming operation efficiency to be prevented.

74. 发明专利

JPS5648208A CENTRIFUGAL TYPE ANTI FOAMING APPARATUS 失效
公开(公告)号：JPS5648208A
公开(公告)日：1981-05-01
申请号：JP12381279
申请日：1979-09-28
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , EBARA KATSUYA , TAKAHASHI SANKICHI
IPC分类号： B01D19/02 , B04B3/00 , B04B3/02
摘要： PURPOSE:To make the removal of screen-clogged solids easy by providing means of disposing a screen to the inner surface side of a frame at the anti-foaming and moving the same to the outer face side of the frame at the removing of the clogged solids. CONSTITUTION:A screen 2 is fixed to a ring 45 by way of a roller 41 on the outer side in the upper part of an outside cage 1 having the screen 2 on the inner surface side, and a cord 36 is fixed to the lower part of the ring 45. The other end of the cord 36 is fixed to a rotary plate 33 by way of the roller 47 and through-hole 37 in the lower part of the outside cage 1. When clogging occurs, the rotation is slowed down to lower a charging pipe 11 down to a predetermined position. This causes the rotary plate 33 to move upward, then the cord 36 lowers the ring 43 and the screen 2 slides downward on the outside surface of the outside cage 1 and turns over. When the outside cage 1 is rotated at a faster speed, the solids clogging the screen 2 are separated and collected into a casing 6. When the charging pipe 11 is returned again, the screen 2 also returns to the inner surface of the outside cage 1.

75. 发明专利

JPS5581018A PRODUCTION OF ROLLING ROLL 失效
公开(公告)号：JPS5581018A
公开(公告)日：1980-06-18
申请号：JP15311878
申请日：1978-12-13
申请人： HITACHI LTD
发明人： OGAWA TOSHIO
IPC分类号： B21C23/14 , B21J5/00
摘要： PURPOSE:To make the surface structure of the roll fine by applying extrusion working to the cast ingot having undergone electroslag remelting thereby directing the direction of solidifaction structure to the direction perpendicular to the axial line of the roll axial line and imparting forging effect. CONSTITUTION:In the cast ingot having undergone electroslag remelting, the directions of the columnar crystal having grown by having a fixed angle depending upon solidification structure are approached to the direction perpendicular to the axial line by extrusion process, whereby forging effect is also given. By this extrusion process, the angles of inclination particulary in the surface layer are corrected. In the position extremely close to the surface, the correction becomes excessive and the inclination becomes reverse but these portions are turned by later machining. With this cast ingot, the rate of cooling and temperature gradient at the solidifying are higher, the closer to the surface layer, thus fine structure is exhibited. By effectively utilizing this surface layer, the roll of high quality and high dimensional accuracy of the roll surface may be obtained.

76. 发明专利

JPS53146217A WORK ROLL FOR COLD ROLLING 失效
公开(公告)号：JPS53146217A
公开(公告)日：1978-12-20
申请号：JP6113277
申请日：1977-05-27
申请人： HITACHI LTD
发明人： AKAHORI KIMIHIKO , OGAWA TOSHIO , OKADA NOBUSUKE
IPC分类号： B21B27/00 , C22C38/00 , C22C38/22
摘要： PURPOSE:To provide a work roll for cold rolling having high wear resistance, superior rough surface resistance and great depth of quench hardening, which is obtd. by increasing the C content and controlling the wt. ratio of C and Cr to a predetermined range.

77. 发明专利

JP2009278134A Power module and inverter 有权
标题翻译：电源模块和逆变器
公开(公告)号：JP2009278134A
公开(公告)日：2009-11-26
申请号：JP2009192710
申请日：2009-08-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMADA KAZUJI , OGAWA TOSHIO , KAMIMURA NORITAKA , NAKAMURA TAKAYOSHI , MOTOBE MITSUYUKI
IPC分类号： H01L25/07 , H01L23/28 , H01L25/18 , H02M7/48
CPC分类号： H01L2224/45124 , H01L2224/48139 , H01L2224/48247 , H01L2224/49111 , H01L2924/1305 , H01L2924/13055 , H01L2924/13091 , H01L2924/30107 , H01L2924/3025 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To further improve the reliability of a power module. SOLUTION: In the power module in which active elements 13 and 14 soldered to an electrode 8 on one face of a ceramic substrate 7 are sealed with resin 2, a conductive film 11 is formed on the other face of the ceramic substrate 7 and the resin 2 is extended to cover a peripheral portion of the conductive film 11. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：进一步提高电源模块的可靠性。解决方案：在陶瓷基板7的一面上焊接到电极8上的有源元件13和14被树脂2密封的电源模块中，在陶瓷基板7的另一个表面上形成导电膜11 并且树脂2被延伸以覆盖导电膜11的周边部分。版权所有（C）2010，JPO和INPIT

78. 发明专利

JP2004167495A Catalyst for cleaning exhaust gas from internal combustion engine 审中-公开
公开(公告)号：JP2004167495A
公开(公告)日：2004-06-17
申请号：JP2004071885
申请日：2004-03-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： DOI RYOTA , IIZUKA HIDEHIRO , HANAOKA HIROSHI , OGAWA TOSHIO , KURODA OSAMU , YAMASHITA HISAO , KITAHARA YUICHI , HIRATSUKA TOSHIFUMI
IPC分类号： F01N3/10 , B01D53/94 , B01J23/58
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas with which nitrogen oxides contained in exhaust gas from an internal combustion engine are highly efficiently removed in the coexistence of oxygen and which is strong against sulfur oxide being a catalyst poisoning substance in the exhaust gas and is durable even in the atmosphere of high teperature and to provide an exhaust gas cleaning method. SOLUTION: This catalyst for cleaning the exhaust gas from the internal combustion engine is obtained by mixing alkaline-earth metal with a precursor of titania as active components on a porous carrier, firing the obtained mixture and depositing a part of the fired body on the compound oxide of an alkaline-earth metal and titanium. This catalyst can highly efficiently remove the nitrogen from the exhaust gas containing excess oxygen and SOx. COPYRIGHT: (C)2004,JPO

79. 发明专利

JP2003309224A Semiconductor device 审中-公开
标题翻译：半导体器件
公开(公告)号：JP2003309224A
公开(公告)日：2003-10-31
申请号：JP2002115768
申请日：2002-04-18
申请人： Hitachi Ltd , Nitto Shinko Kk , 日東シンコー株式会社 , 株式会社日立製作所
发明人： OGAWA TOSHIO , NAKATSU KINYA , YAGAWA MASAYUKI , FUJIKI ATSUSHI , KATSUDA KOJI
IPC分类号： H01L23/14 , H01L25/07 , H01L25/18
CPC分类号： H01L24/73 , H01L2224/32245 , H01L2224/45124 , H01L2224/48247 , H01L2224/73265 , H01L2924/1305 , H01L2924/13055 , H01L2924/00012 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device having high reliability and low thermal resistance. SOLUTION: The semiconductor device has such a structure that a lead frame 13 which constitutes a conductor of a main circuit is bonded on a base plate 17 via resin insulating layers 15 and 16, and a semiconductor element 11 for switching is fastened on the lead frame 13. The resin insulation layer is composed of a plurality of resin layers formed of different materials, with the layer (B layer) 16 in contact with the base plate formed of a resin material having high insulation reliability and the layer (L layer) 15 in contact with the lead frame having a low elastic modulus in a high temperature region of 100°C or higher. The elastic modulus of the L layer is adjusted to not more than 0.01 times as that of the B layer at 100°C. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供具有高可靠性和低热阻的半导体器件。解决方案：半导体器件具有这样的结构：构成主电路的导体的引线框架13通过树脂绝缘层15和16接合在基板17上，并将用于切换的半导体元件11紧固在引线框13.树脂绝缘层由多个由不同材料形成的树脂层组成，层（B层）16与由绝缘可靠性高的树脂材料形成的基板接触，层（L 层）在100℃以上的高温区域与具有低弹性模量的引线框接触。在100℃下将L层的弹性模量调整为不超过B层的弹性模量的0.01倍。版权所有（C）2004，JPO

80. 发明专利

JP2002033433A SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF 失效
公开(公告)号：JP2002033433A
公开(公告)日：2002-01-31
申请号：JP2000217240
申请日：2000-07-13
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , TAKAHASHI MASAAKI , KOBAYASHI TOSHIYUKI , KAMIMURA NORITAKA , YAMADA KAZUJI , TANI SHOGO , SASAKI YASUSHI , NAKATSU KINYA , UENO TAKUMI
IPC分类号： H01L25/07 , H01L23/50 , H01L25/18
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device having high reliability and low thermal resistance. SOLUTION: A part of a lead frame is bent vertically and led outside to constitute a terminal electrode. A main circuit is bonded to a base plate through a resin layer, and the terminal electrode of the lead frame is raised after element formation.

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