Patents by Inventor Yutaka Tsuchida
Yutaka Tsuchida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4909302Abstract: A dummy nozzle is used for alignment of a pouring nozzle upon insertion of the pouring nozzle in communication with a tundish into a mold cavity of an endless track type moving-block mold continuous casting machine.Type: GrantFiled: May 17, 1989Date of Patent: March 20, 1990Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Shuzo Takahashi, Yutaka Tsuchida, Shiro Osada, Hisashi Sato, Nobuhisa Hasebe, Masayuki Nakada
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Patent number: 4909304Abstract: Downward force resulting from the block mold and its carrier of the upper mold assembly which move downwardly toward the upstream end of the mold cavity defined by the vertically spaced-apart upper and lower mold assemblies is transmitted to the block mold and its carrier of the upper mold assembly passing the upward path extending upwardly from the downstream end of the mold cavity so that the distortions of the cross-sectional configuration and size of the mold cavity due to the weight of the block molds and their carriers are prevented.Type: GrantFiled: October 25, 1988Date of Patent: March 20, 1990Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Hisashi Sato, Shiro Osada, Shuzo Takahashi, Yutaka Tsuchida, Nobuhisa Hasebe
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Patent number: 4895202Abstract: In a mold cavity and/or in horizontal cooling zones, upstream- and downstream-side gears are drivingly coupled to each other through an endless-track-like member to which the tensile force is exerted by a tensioner, so that gaps between the adjacent block molds can be eliminated and therefore intrusion and leakage of a cooling liquid and melt are prevented.Type: GrantFiled: November 15, 1988Date of Patent: January 23, 1990Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Hisashi Sato, Shuzo Takahashi, Shiro Osada, Yutaka Tsuchida, Nobuhisa Hasebe
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Patent number: 4821790Abstract: A tundish nozzle is independent from a tundish so that thermal deformations of the tundish are not transmitted to the tundish nozzle.Type: GrantFiled: January 21, 1988Date of Patent: April 18, 1989Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Yutaka Tsuchida, Shuzo Takahashi, Shiro Osada, Hisashi Sato, Akichika Ozeki, Nobuhisa Hasebe
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Patent number: 4807692Abstract: In a mold apparatus for an endless track type continuous casting machine of the type in which a plurality of cooling blocks are interconnected with each other in the form of an endless chain to assemble a cooling block chain which can define a straight wall; a pair of said cooling block chains are disposed such that the straight wall thereof define a mold; and the cooling block chains are moved in synchronism with the casting speed or rate, a plurality of cooling holes are extended through each cooling block in the direction perpendicular to the direction of the movement thereof and in parallel with the straight wall section thereof; one or more cooling water pipes are disposed along one side surface of said straight wall section of each cooling block chain and are provided with a plurality of nozzles in line with the cooling holes of the cooling blocks so that the cooling water is injected through the nozzles to their corresponding cooling holes of the cooling blocks which are moving, thereby cooling the cooType: GrantFiled: August 13, 1987Date of Patent: February 28, 1989Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Yutaka Tsuchida, Shuzo Takahashi, Shiro Osada, Nobuhisa Hasebe
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Patent number: 4806178Abstract: Improved toughness of forging is obtained without quenching and tempering by controlling the steel composition to: 0.05% to less than 0.15% C.; 0.10-1.00% Si; 0.50-3.00% Mn; 1.60-4.20% Mn+Cr; 0.010-0.030% Ti; 0.005-0.0030% B; 0.01-0.05% Al; and 0.0060% or less of N.Type: GrantFiled: December 16, 1986Date of Patent: February 21, 1989Assignee: Nippon Steel CorporationInventors: Yoshiro Koyasu, Yutaka Tsuchida, Nobukazu Suzuki
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Method and installation for replacement of mold in block type moving mold continuous casting machine
Patent number: 4784210Abstract: In a block type moving mold continuous casting machine of the type wherein a pair of block molds group each consisting of a plurality of block molds interconnected with each other in the form of an endless track are disposed in opposed relationship to define a mold cavity therebetween; and molten metal is supplied from one open end of the mold cavity and a solidified casting is continuously withdrawn out of the other open end of said mold cavity, a method and installation capable of removing a block mold which has been thermally deformed during the casting process from a carrier in a simple manner and quickly replacing with a new or repaired block mold.Type: GrantFiled: January 7, 1988Date of Patent: November 15, 1988Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Shuzo Takahashi, Yutaka Tsuchida, Shiro Osada, Nobuhisa Hasebe -
Patent number: 4756356Abstract: In moving-mold type or dual-belt type continuous casting machines, the molten metal static pressure in the mold cavity is detected and the quantity of the molten metal poured through the tundish nozzle into the mold cavity is controlled such that the static pressure in the mold cavity is maintained at a predetermined range in which penetration of the molten metal into the gap between the tundish nozzle and the mold assembly can be avoided.Type: GrantFiled: May 19, 1987Date of Patent: July 12, 1988Assignees: Ishikawajima-Harima Jukogo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Hisahiko Fukase, Kunio Matsui, Yutaka Tsuchida
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Patent number: 4738300Abstract: In an endless track type continuous casting installation of the type in which a mold cavity having variable thickness for a casting is defined by the combination of block molds each of which is of an L-shaped cross section and which are connected with each other in the form of a loop, thereby providing each of a pair of endless tracks, safety is ensured with the block molds of the pair of endless tracks are combined to define a mold cavity.Type: GrantFiled: April 16, 1987Date of Patent: April 19, 1988Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Hiroshi Dazai, Yutaka Tsuchida, Shuzo Takahashi, Nobuhisa Hasebe, Katsuyuki Sako
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Patent number: 4537240Abstract: Moving molds are disposed in one array around the periphery of a casting wheel. A series of consecutive moving molds are closed during a predetermined angle range of the periphery of the casting wheel to define a continuous mold cavity between the closed moving molds and the casting wheel. A molten metal is poured into the thus defined continuous molding cavity at an upstream end thereof and is solidified while the casting wheel is rotated in unison with the moving molds. Then, moving molds are opened just before they arrive a cast outlet, and the cast is taken out.Type: GrantFiled: June 9, 1983Date of Patent: August 27, 1985Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Yutaka Tsuchida, Toshiyuki Fukai
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Patent number: 4451350Abstract: A sensor comprising a solid electrolytic having oxygen ion conductivity to measure the amount of oxygen in molten metal by forming an oxygen concentration cell in which the solid electrolytic element is coated on the surface thereof with mixture which is composed of Al.sub.2 O.sub.3 powders and metallic fluoride powders such as MgF.sub.2 or CaF.sub.2.The present coating does not exfoliate at immersing the sensor into the molten metal and fully maintains wettability of the solid electrolytic element 1 and the molten metal, and since it does not hinder oxygen ion conductivity of the solid electrolytic element 1, the sensor rapidly reaches up to the thermal and electrical equilibrium state, thereby to obtain satisfactory emf wave.Type: GrantFiled: March 29, 1982Date of Patent: May 29, 1984Assignees: Nippon Kokan Kabushiki Kaisha, Osaka Oxygen Industries Ltd., Shinagawa Shirorenga Kabushiki KaishaInventors: Yutaka Tsuchida, Mikio Mugita, Yutaka Nakano, Naoaki Sasaki, Kenki Ishizawa, Hiroshi Kuroshima
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Patent number: 4343212Abstract: A shearing device wherein a shear main body including an upper and a lower blades one of which is moved toward or away from the other for shearing an ingot is provided with an eccentric so that when the shear main body swings in synchronism with an ingot to be cut which is continuously moving, the upper and lower blades may be moved substantially horizontally in the direction of the passage of the ingot especially when the shearing of the ingot occurs, thereby preventing the "nose bending" of the ingot. A plurality of upper and lower blades are provided for shearing a plurality of ingots in side-by-side relationship wherein the drive mechanism for each upper and lower blade pair includes a plurality of hydraulic cylinders aligned in the direction of ingot movement in order to reduce spacing between ingots.Type: GrantFiled: June 15, 1979Date of Patent: August 10, 1982Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Takehiro Hishinuma, Yutaka Tsuchida
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Patent number: 4227925Abstract: A heat-resistant alloy suitable for welded structures, particularly suitable for nuclear reactors, and free from the adverse effect of the cobalt used therein, which alloy has a basic composition comprising; 0.01-0.2% C, not more than 0.50% Si, not more than 0.50% Mn, 10 to 25% Cr, not more than 0.030% B, not more than 0.50% Zr, not more than 20% of (Mo+1/2W), 0.001 to 0.04% Y, not more than 2.0% Al, and not more than 1.0% Ti, with the balance being Ni and unavoidable impurities.Type: GrantFiled: March 15, 1978Date of Patent: October 14, 1980Assignee: Nippon Steel CorporationInventors: Yuzo Hosoi, Noboru Shinoda, Yutaka Tsuchida, Shozo Sekino, Mizuo Sakakihara, Shoji Murota
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Patent number: 4149583Abstract: Disclosed is a process and apparatus for multi-strand continuous casting wherein a plurality of strands may be spaced apart from each other by a distance only dependent upon the dimensions of a copper plate and water-cooling jacket of a mold because a multi-strand mold oscillation mechanism may be installed independently of the spacing between the adjacent strands and the amplitude of oscillation of each mold may be suitably adjusted depending upon the casting conditions but independently of each other. Cast products emerging from the molds are withdrawn through a multi-strand roll apron or bending unit, a multi-strand casting bow, a multi-strand straightener and a multi-strand table by a multi-strand-pinch-roll stand consisting of a plurality of coaxial multi-pinch-roller assemblies, the individual pinch rollers in each assembly being driven independently of each other.Type: GrantFiled: December 14, 1976Date of Patent: April 17, 1979Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventor: Yutaka Tsuchida
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Patent number: 4145942Abstract: Disclosed is a shearing device wherein a shear main body including an upper and a lower blades one of which is moved toward or away from the other for shearing an ingot is provided with eccentric means so that when the shear main body swings in synchronism with an ingot to be cut which is continuously moving, the upper and lower blades may be moved substantialy horizontally in the direction of the passage of the ingot especially when the shearing of the ingot occurs, thereby preventing the "nose bending" of the ingot.Type: GrantFiled: March 23, 1977Date of Patent: March 27, 1979Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Takehiro Hishinuma, Yutaka Tsuchida
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Patent number: 4106550Abstract: Disclosed is a pinch roll stand for use in a multi-strand continuous casting machine having a plurality of driving multi-pinch-roll assemblies each of which consists of a plurality of pinch rolls coaxially arranged in a hollow part of hollow pinch roll so that the pinch rolls may be driven independently of each other.Type: GrantFiled: January 24, 1977Date of Patent: August 15, 1978Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventor: Yutaka Tsuchida