Patents by Inventor Hideyuki Nikaido
Hideyuki Nikaido 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: 6449996Abstract: The present invention eliminates the need to stop the operation of a line even when trouble arises before, during, or after an operation of joining metal blocks in hot rolling. According to a specific solving means of the present invention, when a succeeding metal block is to be subjected to hot finish rolling in succession to a preceding metal block after the leading end of the succeeding metal block is joined to a tail end 10B of the preceding metal block on the inlet side of a finish rolling mill 26, it is determined before and after joining whether or not endless rolling is impossible. When it is impossible, joining is aborted, and the succeeding metal block 12 is temporarily stopped, is fed again after the tail end 10B of the preceding metal block moves out of the finish rolling mill 26, and is finish-rolled under the conditions set for batch rolling.Type: GrantFiled: April 19, 2001Date of Patent: September 17, 2002Assignee: Kawasaki Steel CorporationInventors: Takeshi Hirabayashi, Shigeru Isoyama, Takahiro Yamasaki, Hideyuki Nikaido
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Patent number: 6373017Abstract: A continuous hot rolling mill with a metal block conveying apparatus and a metal block joining apparatus which moves with the metal blocks along the metal block conveying apparatus to conform a joining operation. The metal block conveying apparatus uses rollers supported by cylinders with a common hydraulic circuit which allows the cylinders to follow guide rails on the metal block joining apparatus and lower out of the path of the metal block joining apparatus and then return to a metal block support position after the metal block joining apparatus' passage without individual control circuits and valves for each of the cylinders.Type: GrantFiled: October 9, 1999Date of Patent: April 16, 2002Assignees: Kawasaki Steel Corporation, Mitsubishi Jukogyo Kabushiki KaishaInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Nozomu Tamura, Toshiaki Amagasa, Toshisada Takechi, Katsuhiro Takebayashi, Kanji Hayashi, Kunio Miyamoto, Akio Kuroda, Kazunori Nagai, Yoshiki Mito, Kazuo Morimoto, Kazuya Tsurusaki, Kiyoshi Izumi
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Patent number: 6345756Abstract: The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.Type: GrantFiled: November 15, 1999Date of Patent: February 12, 2002Assignees: Kawasaki Steel Corporation, Mitsubishi Jukogyo Kabushiki KaishaInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Nozomu Tamura, Toshiaki Amagasa, Toshisada Takechi, Katsuhiro Takebayashi, Kanji Hayashi, Kunio Miyamoto, Akio Kuroda, Kazunori Nagai, Yoshiki Mito, Kazuo Morimoto, Kazuya Tsurusaki, Kiyoshi Izumi
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Patent number: 6262402Abstract: According to the invention, the rear end of a preceding metal piece and a front end of a succeeding metal piece are heated, pressed and joined prior to the finishing hot rolling. An alternating magnetic field running through the metal pieces in the thickness direction thereof is generated in an end region on opposed faces of the respective metal pieces to perform heating. Another alternating magnetic field whose direction is reverse with respect to that of the former alternating magnetic field is partially generated in the end region on the opposed faces of the metal pieces and in either a region where the metal pieces exist or a region outside width ends of the metal pieces. This assures a uniform heating of the end region on the opposed faces of the metal pieces over their full width to reliably join the both metal pieces to each other.Type: GrantFiled: July 12, 1999Date of Patent: July 17, 2001Assignee: Kawasaki Steel CorporationInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 6252211Abstract: A method and apparatus for joining metal pieces wherein the rear end of a preceding metal piece and a front end of a metal piece are heated and then pressed together prior to hot finished rolling. The temperature the ends of the metal pieces are heated to is a temperature range between the solidus and liquidus line temperatures of the metal(s) to be joined.Type: GrantFiled: July 12, 1999Date of Patent: June 26, 2001Assignee: Kawasaki Steel CorporationInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 6248984Abstract: According to the invention, the rear end of a preceding metal piece and a front end of a succeeding metal piece are heated, pressed and joined prior to the finishing hot rolling. An alternating magnetic field running through the metal pieces in the thickness direction thereof is generated in an end region on opposed faces of the respective metal pieces to perform heating. Another alternating magnetic field whose direction is reverse with respect to that of the former alternating magnetic field is partially generated in the end region on the opposed faces of the metal pieces and in either a region where the metal pieces exist or a region outside width ends of the metal pieces. This assures a uniform heating of the end region on the opposed faces of the metal pieces over their full width to reliably join the both metal pieces to each other.Type: GrantFiled: July 12, 1999Date of Patent: June 19, 2001Assignee: Kawasaki Steel CorporationInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 6218649Abstract: Method and apparatus for joining metal pieces using induction heating. Metal pieces to be joined are placed end-to-end with a gap between them and induction heated in the thickness portion. To maximize speed and even heating edge-to-edge of the ends, members of a magnetic substance are provided in a gap between the inductor and the piece to be heated, thereby enhancing local heating effect by increasing magnetic flux density. Once heated, the ends are pressed together end-to-end for joining.Type: GrantFiled: July 12, 1999Date of Patent: April 17, 2001Assignee: Kawasaki Steel CorporationInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 6195859Abstract: In the present invention, in cutting the top and bottom surfaces of a hot-rolled sheet by the rotation of milling cutters holding the sheet therebetween in the thickness direction of the sheet in the running process of the hot-rolled sheet, the cutting resistance determined by the cutting conditions including the type of hot-rolled sheet, the temperature in cutting, and the cut depth is controlled by the adjustment of cut depth, and cutting is performed by making the tension produced on the hot-rolled sheet by the cutting resistance lower than the breaking strength of the joint portion to prevent the breakage of hot-rolled sheet.Type: GrantFiled: June 7, 1999Date of Patent: March 6, 2001Assignees: Kawasaki Steel Corporation, Mitsubishi Jukogyo Kabushiki KaishaInventors: Shigefumi Katsura, Hideyuki Nikaido, Shigeru Isoyama, Takeshi Hirabayashi, Atsushi Yuki, Masuto Shimizu, Toshiaki Amagasa, Kanji Hayashi, Shozo Tashiro, Tetsuo Ichikizaki, Mitsuhiro Takagi, Tadashi Nakagawa, Motofumi Kuroda
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Patent number: 6192564Abstract: In the present invention, in cutting the top and bottom surfaces of a hot-rolled sheet by the rotation of milling cutters holding the sheet therebetween in the thickness direction of the sheet in the running process of the hot-rolled sheet, the cutting resistance determined by the cutting conditions including the type of hot-rolled sheet, the temperature in cutting, and the cut depth is controlled by the adjustment of cut depth, and cutting is performed by making the tension produced on the hot-rolled sheet by the cutting resistance lower than the breaking strength of the joint portion to prevent the breakage of hot-rolled sheet.Type: GrantFiled: June 7, 1999Date of Patent: February 27, 2001Assignees: Kawasaki Steel, Mitsubishi Jukogyo Kabushiki KaishaInventors: Shigefumi Katsura, Hideyuki Nikaido, Takeshi Hirabayashi, Atsushi Yuki, Toshiaki Amagasa, Shozo Tashiro, Tetsuo Ichikizaki, Mitsuhiro Takagi, Tadashi Nakagawa, Motofumi Kuroda
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Patent number: 6185971Abstract: A take-up equipment and a take-up method for a finish rolling mill for dividing a strip into a plurality of coiled products when taking up the strip on the exit side of the finish rolling mill are provided. A plurality of take-up machines (24, 26, K1, K2) are disposed at the downstream side of a hot finish rolling mill; a shearing machine (27, 2) is provided on the upstream side of a pinch roll (23, 4) of the take-up machines (24, K1) at the uppermost stream end; and a strip passing device (28, 6a) is provided between the shearing machine and the pinch roll at the uppermost stream to prevent a strip from rising. The strip passing devices are guiding devices for restricting the height of the rise of the strip or the airflow suction type strip passing devices for drawing in a strip under suction using airflow. The plurality of take-up machines are down coilers or carousel type reels having two winding drums (66a, 66b).Type: GrantFiled: October 29, 1998Date of Patent: February 13, 2001Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., Kawasaki Steel CorporationInventors: Hiroaki Kuwano, Hiroshi Takase, Hisashi Sato, Toshirou Matsushita, Toshio Imazeki, Taichi Kukizaki, Kiyoshi Ueda, Hideyuki Nikaido
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Patent number: 6184508Abstract: An apparatus for joining metal pieces using induction heating. Preceding and succeeding metal pieces are followed by a carriage which carries an inductor. The inductor has the ability to move in the longitudinal direction of the metal pieces relative to the carriage to allow the inductor to move more or less upon the preceding or succeeding metal pieces to increase or decrease the induction heating effect, thereby taking into account any thickness variation of the metal pieces and yet still heating them evenly with regard to each other, prior to their being pressed against each other for joining before hot finishing rolling.Type: GrantFiled: July 12, 1999Date of Patent: February 6, 2001Inventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 6164525Abstract: The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.Type: GrantFiled: October 7, 1997Date of Patent: December 26, 2000Assignee: Kawasaki Steel CorporationInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Toshiaki Amagasa, Kunio Miyamoto, Akio Kuroda
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Patent number: 6152352Abstract: The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heng and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.Type: GrantFiled: October 7, 1997Date of Patent: November 28, 2000Assignees: Kawasaki Steel Corporation Chiba Works, Mitsubishi Jukogyo Kabushiki Kaisha Hiroshima Machinery WorksInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Nozomu Tamura, Toshiaki Amagasa, Kanji Hayashi, Kunio Miyamoto, Yoshiki Mito
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Patent number: 6084222Abstract: A sheet bar joining apparatus comprises a heater provided between a delivery-side clamp for clamping a rear end of a preceding sheet bar and an entry-side clamp for clamping a front end of a succeeding sheet bar; upper and lower anti-buckling plates provided on the entry-side clamp and located above and below the sheet bars; upper comb tooth portions and lower comb tooth portions formed in the upper and lower anti-buckling plates, respectively; a heat resistant insulator provided at a surface of each comb tooth portion opposed to the sheet bars; and a plurality of groove portions provided near the surface of each comb tooth portion opposed to the sheet bars.Type: GrantFiled: January 26, 1999Date of Patent: July 4, 2000Assignees: Mitsubishi Heavy Industries, Ltd., Kawasaki Steel CorporationInventors: Kazuo Morimoto, Kazuya Tsurusaki, Kanji Hayashi, Atsushi Yuki, Shigefumi Katsura, Shigeru Isoyama, Hideyuki Nikaido
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Patent number: 6037575Abstract: A post continuous hot rolling method where a rear end portion of a preced metal block and a fore end portion of a succeeding metal block are cut and the metal blocks joined to each other by heating and pressing followed by a finish rolling, wherein a poorly joined portion is removed by shaving the defective portion through application of rotating cutters prior to a final finish rolling of the joined blocks.Type: GrantFiled: October 7, 1997Date of Patent: March 14, 2000Assignees: Kawasaki Steel Corporation Chiba Works, Mitsubishi Jukogyo Kabushiki Kaisha Hiroshima Machinery WorksInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Toshiaki Amagasa, Toshisada Takechi, Kunio Miyamoto, Akio Kuroda, Yoshiki Mito
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Patent number: 5957368Abstract: A continuous hot rolling method is available for continuously hot finish rolling steel pieces. The trailing end of a preceding steel piece and the leading end of a succeeding steel piece are cut by a drum shear which sandwiches the steel piece between its upper drum and lower drum, having cutting blades on the peripheries of the drums. The cut ends are heated to raise the temperatures thereof by high-frequency induction heating, pressed against each other to butt-join the cut ends. The joined steel pieces are then supplied to a rolling equipment. The trailing end of the preceding steel piece and the leading end of the succeeding steel piece are cut individually by two pairs of the cutting blades. One pair of the cutting blades has the obverses of the blades oriented in opposite directions in the obverse side and the reverse side of the steel piece.Type: GrantFiled: March 10, 1997Date of Patent: September 28, 1999Assignee: Kawasaki Steel CorporationInventors: Katsuhiro Takebayashi, Yoshikiyo Tamai, Toshio Imae, Kunio Isobe, Hideyuki Nikaido, Koichi Uemura
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Patent number: 5951903Abstract: According to the invention, the rear end of a preceding metal piece and a front end of a succeeding metal piece are heated, pressed and joined prior to the finishing hot rolling. An alternating magnetic field running through the metal pieces in the thickness direction thereof is generated in an end region on opposed faces of the respective metal pieces to perform heating. Another alternating magnetic field whose direction is reverse with respect to that of the former alternating magnetic field is partially generated in the end region on the opposed faces of the metal pieces and in either a region where the metal pieces exist or a region outside width ends of the metal pieces. This assures a uniform heating of the end region on the opposed faces of the metal pieces over their full width to reliably join the both metal pieces to each other.Type: GrantFiled: December 29, 1995Date of Patent: September 14, 1999Assignee: Kawasaki Steel Corporation et al.Inventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Toshiaki Amagasa, Nozomu Tamura, Takahiro Yamasaki, Masashi Osada, Hirosuke Yamada, Toshisada Takechi, Norio Takashima, Junzo Nitta, Shuji Amanuma, Kanji Hayashi, Akio Kuroda, Yoshiki Mito, Kunio Miyamoto, Kazuo Morimoto, Ikuo Wakamoto, Kazuya Tsurusaki, Hideo Sakamoto, Michio Hashimoto, Hiroyuki Nakano, Toshinobu Eguchi, Fumihiro Maeda
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Patent number: 5753894Abstract: The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.Type: GrantFiled: February 15, 1995Date of Patent: May 19, 1998Assignees: Kawasaki Steel Corporation, Mitsubishi Jukogyo Kabushiki KaishaInventors: Shigeru Isoyama, Takeshi Hirabayashi, Hideyuki Nikaido, Hirosuke Yamada, Nozomu Tamura, Toshiaki Amagasa, Toshisada Takechi, Kanji Hayashi, Kunio Miyamoto, Akio Kuroda, Kazunori Nagai, Yoshiki Mito
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Patent number: 5720196Abstract: A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling facility provided with a plurality of stands having a bending function of a work roll. The method involves estimating the variation of the rolling force occurring during rolling the joint of the steel pieces at the non-stationary zone caused by said joint, calculating the changing bending force of the work roll during rolling the joint of the steel pieces from the estimated variation of the rolling force, and determining the pattern for changing the bending force taking account of said changing force, and rolling the joint of the steel pieces by regulating the bending force in response to said pattern over at least one stand, while tracking down the joint of the steel piece immediately after joining.Type: GrantFiled: March 29, 1996Date of Patent: February 24, 1998Assignee: Kawasaki Steel CorporationInventors: Yoshikiyo Tamai, Katsuhiro Takebayashi, Toshio Imae, Hideyuki Nikaido, Kunio Isobe
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Patent number: 5634360Abstract: A guiding method and apparatus are presented for preventing the generation of lateral curving in a rolled slab produced in a roughing mill train, consisting of an edging mill and a horizontal mill in tandem, for example. The apparatus basically includes a first side guide placed upstream at the entrance to the edging mill, a second side guide placed downstream at the exit of the horizontal mill and a third side guide placed between the edging mill and the horizontal mill. The first side guide at the entrance to the edging mill synchronously closes the separation distance of the guide components upon the entry of the rolled slab into the first side guide, leaving a narrow space between the guide and the rolled slab. The third side guide closes the separation spacing based on slab exit timing representing the instant the tail end of the rolled slab passes through the edging mill. The second side guide assumes a narrow separation distance when the head end of the rolled slab enters therebetween.Type: GrantFiled: September 5, 1996Date of Patent: June 3, 1997Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., Kawasaki Steel CorportionInventors: Nobuhiro Tazoe, Hiroaki Kuwano, Katsumi Okada, Makoto Shitomi, Hideyuki Nikaido, Takeshi Fujitsu, Katsumi Kawakami, Tetsuo Shima, Shinji Tanaka