Patents by Inventor Mototsugu Osada
Mototsugu Osada 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: 10239119Abstract: The apparatus for continuous slab casting having a nozzle exchanging-holding mechanism capable of moving a submerged nozzle at the exchange of the nozzle through a moving-connecting space D of a base under a slide valve mechanism and keeping the connection between the submerged nozzle and the slide valve mechanism during the operation, and a rotation mechanism to rotate the base of the nozzle exchanging-holding mechanism, which is characterized by a fixing mechanism that fixes the submerged nozzle in the nozzle exchanging-holding mechanism by pressing the submerged nozzle toward one or both inner sides of the moving-connecting space D of the base in one or both directions perpendicular to the moving direction of the submerged nozzle during the nozzle exchange.Type: GrantFiled: November 17, 2016Date of Patent: March 26, 2019Assignee: SHINAGAWA REFRACTORIES CO., LTD.Inventors: Kenji Yamamoto, Atsushi Takata, Mototsugu Osada, Yoshihumi Shigeta
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Patent number: 10183326Abstract: A slab continuous casting apparatus according to this invention is configured to supply molten metal from a tundish to a slab water-cooled mold through at least an upper nozzle, a stopper, and an immersion nozzle and solidify the molten metal, and is provided with an immersion nozzle quick replacement mechanism. The slab continuous casting apparatus includes a discharge direction change mechanism that is provided between the stopper and the immersion nozzle and is capable of freely changing a discharge angle of the molten metal in a horizontal cross-section during casting.Type: GrantFiled: October 13, 2015Date of Patent: January 22, 2019Assignee: SHINAGAWA REFRACTORIES CO., LTD.Inventors: Kenji Yamamoto, Yoshifumi Shigeta, Mototsugu Osada, Atsushi Takata
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Publication number: 20180236530Abstract: The apparatus for continuous slab casting having a nozzle exchanging-holding mechanism capable of moving a submerged nozzle at the exchange of the nozzle through a moving-connecting space D of a base under a slide valve mechanism and keeping the connection between the submerged nozzle and the slide valve mechanism during the operation, and a rotation mechanism to rotate the base of the nozzle exchanging-holding mechanism, which is characterized by a fixing mechanism that fixes the submerged nozzle in the nozzle exchanging-holding mechanism by pressing the submerged nozzle toward one or both inner sides of the moving-connecting space D of the base in one or both directions perpendicular to the moving direction of the submerged nozzle during the nozzle exchange.Type: ApplicationFiled: November 17, 2016Publication date: August 23, 2018Inventors: Kenji YAMAMOTO, Atsushi TAKATA, Mototsugu OSADA, Yoshihumi SHIGETA
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Patent number: 10029303Abstract: The invention provides rotating a submerged nozzle during casting to arbitrarily change the discharge angle of molten metal, causing the molten metal in the mold for slab to be rotated and stirred. A slab continuous casting apparatus according to the invention supplies molten metal from a tundish to a water-cooled mold for slab through at least an upper nozzle, a slide valve and a submerged nozzle and solidified the molten metal and provided with a submerged-nozzle quick replacement mechanism. The slab continuous casting apparatus further includes a discharge-direction changing mechanism capable of arbitrarily changing discharge angle of the molten metal as viewed in a horizontal cross section, during casting, the discharge-direction changing mechanism being provided between a slide valve device for opening and closing the slide valve and the submerged nozzle.Type: GrantFiled: August 27, 2014Date of Patent: July 24, 2018Assignee: SHINAGAWA REFRACTORIES CO., LTD.Inventors: Kenji Yamamoto, Yoshifumi Shigeta, Mototsugu Osada, Atsushi Takata
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Publication number: 20170368597Abstract: A slab continuous casting apparatus according to this invention is configured to supply molten metal from a tundish to a slab water-cooled mold through at least an upper nozzle, a stopper, and an immersion nozzle and solidify the molten metal, and is provided with an immersion nozzle quick replacement mechanism. The slab continuous casting apparatus includes a discharge direction change mechanism that is provided between the stopper and the immersion nozzle and is capable of freely changing a discharge angle of the molten metal in a horizontal cross-section during casting.Type: ApplicationFiled: October 13, 2015Publication date: December 28, 2017Inventors: Kenji YAMAMOTO, Yoshifumi SHIGETA, Mototsugu OSADA, Atsushi TAKATA
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Publication number: 20170014898Abstract: The invention provides rotating a submerged nozzle during casting to arbitrarily change the discharge angle of molten metal, causing the molten metal in the mold for slab to be rotated and stirred. A slab continuous casting apparatus according to the invention supplies molten metal from a tundish to a water-cooled mold for slab through at least an upper nozzle, a slide valve and a submerged nozzle and solidified the molten metal and provided with a submerged-nozzle quick replacement mechanism. The slab continuous casting apparatus further includes a discharge-direction changing mechanism capable of arbitrarily changing discharge angle of the molten metal as viewed in a horizontal cross section, during casting, the discharge-direction changing mechanism being provided between a slide valve device for opening and closing the slide valve and the submerged nozzle.Type: ApplicationFiled: August 27, 2014Publication date: January 19, 2017Inventors: Kenji YAMAMOTO, Yoshifumi SHIGETA, Mototsugu OSADA, Atsushi TAKATA
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Patent number: 9505056Abstract: A slide valve apparatus for automatic application of surface pressure is configured to include a connection switching device (20) for switching a connection position of a drive device (7) and a slide case (4) between a first connection position (discharge position) during molten metal discharge and a second connection position (surface pressure operation position) during surface pressure application/release. As a result, the drive stroke of the drive device can be greatly reduced and the already installed drive device can be used as is when a SV apparatus is upgraded.Type: GrantFiled: March 4, 2013Date of Patent: November 29, 2016Assignee: SHINAGAWA REFRACTORIES CO. LTD.Inventors: Kenji Yamamoto, Yoshifumi Shigeta, Mototsugu Osada, Atsushi Takata
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Publication number: 20150076385Abstract: A slide valve apparatus for automatic application of surface pressure is configured to include a connection switching device (20) for switching a connection position of a drive device (7) and a slide case (4) between a first connection position (discharge position) during molten metal discharge and a second connection position (surface pressure operation position) during surface pressure application/release. As a result, the drive stroke of the drive device can be greatly reduced and the already installed drive device can be used as is when a SV apparatus is upgraded.Type: ApplicationFiled: March 4, 2013Publication date: March 19, 2015Inventors: Kenji Yamamoto, Yoshifumi Shigeta, Mototsugu Osada, Atsushi Takata
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Patent number: 8539977Abstract: In order to simplify work of applying and releasing a surface pressure in a slide valve device constructed of a fixed plate, a slide plate, a seal plate, and the like, provided is a slide valve device for automatic surface pressure application and a surface pressure application method therefor, the slide valve device including: a base frame (2) including a positioning member (51) for determining an arrangement location (X) of a seal case (21) and a stopper (52) for fixing the seal case (21) at the arrangement location (X); and a slide case (4) including a pusher (53) for sliding the seal case (21) together with the slide case (4) when sliding the slide case (4) in a surface pressure application direction.Type: GrantFiled: December 1, 2010Date of Patent: September 24, 2013Assignee: Shinagawa Refractories Co., Ltd.Inventors: Kenji Yamamoto, Mototsugu Osada, Atsushi Takata
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Patent number: 8490841Abstract: A submerged nozzle supporting-replacing mechanism, which is constituted to set an entire width dimension (L3) of each of clampers (20 and 21) to be smaller than a flange diameter dimension (L1) of a submerged nozzle (9) so as to position each of the clampers (20 and 21) by a positioning member (26), and so as to guide an upper surface (43) of a fresh submerged nozzle (9A) by a positioning liner (6), to thereby regulate a height position of the fresh submerged nozzle (9A) during movement in a horizontal direction thereof. The position of the clampers are regulated by setting the entire width dimension of the clampers to be smaller than the flange diameter dimension of the submerged nozzle, which can be smoothly replaced by providing the positioning liner.Type: GrantFiled: January 5, 2009Date of Patent: July 23, 2013Assignee: Shinagawa Refractories Co., Ltd.Inventors: Kenji Yamamoto, Mototsugu Osada
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Publication number: 20120175542Abstract: In order to simplify work of applying and releasing a surface pressure in a slide valve device constructed of a fixed plate, a slide plate, a seal plate, and the like, provided is a slide valve device for automatic surface pressure application and a surface pressure application method therefor, the slide valve device including: a base frame (2) including a positioning member (51) for determining an arrangement location (X) of a seal case (21) and a stopper (52) for fixing the seal case (21) at the arrangement location (X); and a slide case (4) including a pusher (53) for sliding the seal case (21) together with the slide case (4) when sliding the slide case (4) in a surface pressure application direction.Type: ApplicationFiled: December 1, 2010Publication date: July 12, 2012Inventors: Kenji Yamamoto, Mototsugu Osada, Atsuchi Takata
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Patent number: 8002155Abstract: A slide valve device for automatic surface pressure application including a slide valve having a three-layer structure, in which the movable bodies of the seal case is slidable on a support surface of a spring holder. The slide case and the seal case are coupled with each other by means of a coupling device or a coupling stopper, and the cases are slid together by means of an actuator so as to apply and release a surface pressure.Type: GrantFiled: June 4, 2007Date of Patent: August 23, 2011Assignee: Shinagawa Refractories Co., Ltd.Inventors: Kenji Mitsui, Mototsugu Osada, Hiroaki Morii
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Publication number: 20100251533Abstract: To alleviate a bending stress to be applied to a lower nozzle, by joining a ring-shaped taper portion of the lower nozzle to a receiving taper portion of a receiving member, to thereby prevent generation of a vertical cracking, and further to improve a sealing property of the lower nozzle and a submerged nozzle with a seal material, provided are a submerged nozzle supporting-replacing mechanism and a lower-nozzle/submerged-nozzle sealing method, in which, when an upper surface of a submerged nozzle (6) is joined through clampers (5) with respect to a lower surface of a lower nozzle (4) supported by a receiving member (3) of a lower frame (2) of a slide valve device (1), a receiving taper portion (3A) of the receiving member (3) is joined to a ring-shaped taper portion (4A) of the lower nozzle (4), to thereby suppress a vertical cracking.Type: ApplicationFiled: December 19, 2008Publication date: October 7, 2010Inventors: Kenji Yamamoto, Mototsugu Osada
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Publication number: 20100242245Abstract: To regulate a position of each of clampers by setting an entire width dimension of each of the clampers to be smaller than a flange diameter dimension of a submerged nozzle and to smooth replacement of a fresh submerged nozzle by providing a positioning liner, to thereby obtain a simple structure at a low cost, provided is a submerged nozzle supporting-replacing mechanism, which is constituted to set an entire width dimension (L3) of each of clampers (20 and 21) to be smaller than a flange diameter dimension (L1) of a submerged nozzle (9) so as to position each of the clampers (20 and 21) by a positioning member (26), and so as to guide an upper surface (43) of a fresh submerged nozzle (9A) by a positioning liner (6), to thereby regulate a height position of the fresh submerged nozzle (9A) during movement in a horizontal direction thereof.Type: ApplicationFiled: January 5, 2009Publication date: September 30, 2010Inventors: Kenji Yamamoto, Mototsugu Osada
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Publication number: 20090184139Abstract: To achieve increase in surface pressure application force and compactification of configuration in a slide valve device having a three-layer structure, in which a seal case is slid by means of a cam surface and movable bodies. The present invention provides a slide valve device for automatic surface pressure application including a slide valve having the three-layer structure, in which the movable bodies of the seal case is slidable on a support surface of a spring holder, the slide case and the seal case are coupled with each other by means of a coupling means or a coupling stopper, and the cases are slid together by means of an actuator so as to apply and release a surface pressure.Type: ApplicationFiled: June 4, 2007Publication date: July 23, 2009Applicant: SHINAGAWA REFRACTORIES CO., LTD.Inventors: Kenji Mitsui, Mototsugu Osada, Hiroaki Morii
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Patent number: 7455201Abstract: A pressing means for pressing a slide plate against a fixed plate by uniform pressure has simple, strong construction and can be easily assembled. A slide gate valve unit includes a pair of pressing members 10 having a U-shaped cross section and capable of receiving protrusions 11 protruding from sides of a base frame secured to the lower surface of the bottom wall of a molten metal container and the lower surfaces of side parts of a slide case 4. Elastic members 12 are extended between upper parts 10a of the pressing members and the upper surfaces of the protrusions of the base frame. Side parts of the slide case 4 are supported on the upper surfaces of the lower parts 10b of the pressing members.Type: GrantFiled: November 7, 2005Date of Patent: November 25, 2008Assignee: Shinagawa Refractories Co., Ltd.Inventors: Kenji Mitsui, Mototsugu Osada
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Publication number: 20070267591Abstract: A pressing means for pressing a slide plate against a fixed plate by uniform pressure has simple, strong construction and can be easily assembled. A slide gate valve unit includes a pair of pressing members 10 having a U-shaped cross section and capable of receiving protrusions 11 protruding from sides of a base frame secured to the lower surface of the bottom wall of a molten metal container and the lower surfaces of side parts of a slide case 4. Elastic members 12 are extended between upper parts 10a of the pressing members and the upper surfaces of the protrusions of the base frame. Side parts of the slide case 4 are supported on the upper surfaces of the lower parts 10b of the pressing members.Type: ApplicationFiled: November 7, 2005Publication date: November 22, 2007Inventors: Kenji Mitsui, Mototsugu Osada
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Patent number: 7258256Abstract: A surface pressure releasing plate and a surface pressure releasing bar are slidable relative to each other smoothly by compressing compression springs uniformly. A surface pressure applying device for a slide valve according to the present invention compresses compression springs uniformly in applying and releasing surface pressure and makes a surface pressure releasing plate and a surface pressure releasing bar smoothly slide relative to each other by matching an arrangement center of projections on the surface pressure releasing plate with an arrangement center of the compression springs.Type: GrantFiled: September 27, 2004Date of Patent: August 21, 2007Assignee: Shinagawa Refractories Co., Ltd.Inventors: Kenji Mitsui, Mototsugu Osada
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Publication number: 20070080312Abstract: The present invention makes it possible to slide a surface pressure releasing plate and a surface pressure releasing bar relative to each other smoothly by compressing compression springs uniformly. A surface pressure applying device for a slide valve according to the present invention compresses compression springs (11) uniformly in applying and releasing surface pressure and makes a surface pressure releasing plate (13) and a surface pressure releasing bar (15) smoothly slide relative to each other by matching an arrangement center (A) of projections (14) on the surface pressure releasing plate (13) with an arrangement center (B) of the compression springs (11).Type: ApplicationFiled: September 27, 2004Publication date: April 12, 2007Applicant: SURFACE PRESSURE LOAD DEVICE OF SLIDE VALVEInventors: Kenji Mitsui, Mototsugu Osada
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Patent number: 5613545Abstract: This invention relates to an inert gas injecting plate brick or nozzle brick for use in a sliding gate valve apparatus of molten metal, characterised in that said plate brick or insert nozzle brick is horizontally split into at least two parts, and a number of small diameter pipes are sealingly arranged and secured in said split surfaces. According to such a plate brick or nozzle brick, it is possible to prevent leakage of injection gas in such kind of apparatus, it is possible to carry out a stable casting working, and complicated, high cost, additional processes such as cutting working, boring working and connecting working of said bricks can be saved.Type: GrantFiled: October 26, 1994Date of Patent: March 25, 1997Assignee: Shinagawa Refractories Co. Ltd.Inventors: Takashi Otsuka, Kenji Yamamoto, Mototsugu Osada, Tadao Taniguchi, Yoshifumi Shigeta