Patents by Inventor Shigeru Isoyama
Shigeru Isoyama 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: 6340108Abstract: Assuming that the processes of joining, rolling, coiling, etc. of a material is evaluated by a preset speed pattern after the extraction from a heating furnace, the required time is predicted and calculated for both of a preceding material and a following material. At the time when the following material can catch up with the preceding material at an aiming position on the line, the following material is extracted from the heating furnace according to the result of the above prediction calculation. Control is carried out so that both of the preceding material and the following material finish the process at a preset speed. Also, the traveling speed of the following material is controlled according to the position and the speed of the tail edge of the preceding material in a section close to the catch-up position so that a distance between the tail edge of the preceding material and the leading edge of the following material be closed.Type: GrantFiled: August 28, 2000Date of Patent: January 22, 2002Assignees: Kawasaki Steel Corporation, Mitsubishi Heavy Industries, LTDInventors: Shigeru Isoyama, Takeshi Hirabayashi, Takahiro Yamasaki, Takushi Kagawa, Kazunori Nagai, Naohiko Ishibashi, Takashi Okai
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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: 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: 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