Patents by Inventor Kenji Horii

Kenji Horii 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).

  • Patent number: 11935762
    Abstract: There is provided a technique that includes: a first processing module including a first process container in which at least one substrate is processed, a first utility system including a first supply system which supplies a first processing gas into the first process container and a surface of the first utility system is connected or arranged close to the first processing module; and a first vacuum pump arranged at the same level as a first exhaust port of the first process container. The first vacuum pump exhausts an inside of the first process container and includes a first intake port formed laterally at a position substantially facing the first exhaust port of the first process container. A first exhaust pipe configured to substantially linearly bring the first exhaust port into fluid communication with the first intake port and including a first valve installed in a flow path.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: March 19, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Daigi Kamimura, Tomoshi Taniyama, Kenji Shirako, Hironori Shimada, Akira Horii, Takayuki Nakada, Norihiro Yamashima
  • Publication number: 20230330729
    Abstract: A control device 20 obtains second pressing forces acting on work-side and drive-side roll chocks 112A and 112B on the basis of entry side and exit side first pressing forces, and controls at least one of work roll position control devices 140B and 141B and at least one of work roll pressing devices 130B and 131B changing a position of at least one of the roll chocks 112A and 112B in such a manner that a difference between the work-side second pressing force and the drive-side second pressing force is equal to or smaller than a predetermined value.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 19, 2023
    Inventors: Tatsunori SUGIMOTO, Kenji HORII, Akio KURODA, Akira SAKO, Shinya KANEMORI
  • Publication number: 20230149994
    Abstract: Provided are: an upper work roll, radial bearings and a thrust bearing provided on a work side and a drive side of the upper work roll and supporting the upper work roll. Shift cylinders are provided on the work side of the upper work roll and apply forces in both a work side direction and a drive side direction to the thrust bearing. Shift cylinders are also provided on the drive side of the upper work roll and apply forces in both the work side direction and the drive side direction to the radial bearing 790B. The shift cylinders each apply a force in the same direction to the radial bearing and the thrust bearing when the upper work roll does not shift in an axial direction at least during rolling.
    Type: Application
    Filed: August 7, 2020
    Publication date: May 18, 2023
    Inventors: Kenji HORII, Toshihiro USUGI, Akihiro YAMAMOTO, Hikaru NAKAYA, Daisuke IWAKI, Hiroki YAMASAKI
  • Publication number: 20230149995
    Abstract: Angles of an upper-side pair of an upper work roll 110A and an upper backup roll 120A, and a lower-side pair of a lower work roll 110B and a lower backup roll 120B are adjusted in a state where the upper-side pair is kept parallel and in a state where the lower-side pair is kept parallel. Thereafter, work-roll pressing apparatuses 130A and 130B, work-roll position control apparatuses 140A and 140B, backup-roll pressing apparatuses 150A and 150B, and backup-roll position control apparatuses 160A and 160B are controlled such that the angles of the upper work roll 110A and the lower work roll 110B are adjusted in a state where the angles of the upper backup roll 120A and the lower backup roll 120B are maintained.
    Type: Application
    Filed: April 27, 2020
    Publication date: May 18, 2023
    Inventors: Tatsunori SUGIMOTO, Kenji HORII, Akio KURODA, Akira SAKO, Shinya KANEMORI
  • Publication number: 20230139351
    Abstract: A hot rolling mill 1 includes a control apparatus 20 that adjusts an angle formed between an upper-side pair of an upper backup roll 120A and an upper work roll 110A and a lower-side pair of a lower backup roll 120B and a lower work roll 110B in a state where the upper-side pair is kept parallel and in a state where the lower-side pair is kept parallel. The hot rolling mill 1 is configured such that the work rolls 110A and 110B satisfy the condition that DW/Lb is equal to or smaller than 0.30 where DW is a diameter of the work rolls 110A and 110B, and Lb is the maximum strip width of a rolled material, and the hot rolling mill 1 performs rolling in a state where a bending force is applied to the work rolls.
    Type: Application
    Filed: April 27, 2020
    Publication date: May 4, 2023
    Inventors: Tatsunori SUGIMOTO, Kenji HORII, Akio KURODA, Akira SAKO, Shinya KANEMORI
  • Patent number: 10322440
    Abstract: Provided is a nozzle header which sprays pressurized water to a high-temperature object, capable of inhibiting a member provided to spray nozzles from being deformed or damaged by heat at the time of operation, caused by radiation heat from the high-temperature object. The nozzle header for spraying water to a targeted object includes a header which supplies pressurized water, one or more of spray nozzles which spray the pressurized water supplied from the header, and a heat removal structure attached so as to be in contact with at least one of the spray nozzles, wherein the heat removal structure includes a coolant passage through which a cooling medium for cooling the heat removal structure itself and the spray nozzles passes.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 18, 2019
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Yoichi Haraguchi, Koichi Sakamoto, Manabu Eto, Yuji Ikemoto, Kenji Horii
  • Patent number: 9486847
    Abstract: Provided is a cooling apparatus discharging water smoothly corresponding to increase of volume density of cooling water securing a high cooling capability. The apparatus disposed on downstream side from a row of hot finish rolling mill, supplying cooling water from above toward a pass line, includes a plurality of cooling nozzles arranged parallel in a pass line direction, and an upper surface guide disposed between the pass line and the cooling nozzles, wherein a predetermined relation is satisfied when defining: a volume density of cooling water sprayed as qm(m3/(m2┬Ěsec)); a pitch of the cooling nozzle in the pass line direction as L(m); a distance between a lower surface of the upper surface guide and the pass line as hp(m); a uniform cooling width as Wu(m); and a cross-sectional area of virtual flow path of discharging water flowing in a width direction of steel sheet as S(m2).
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 8, 2016
    Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Kazuaki Kobayashi, Tomofumi Hosho, Keisuke Matsuda, Yoichi Haraguchi, Yuji Ikemoto, Kenji Horii
  • Publication number: 20150224551
    Abstract: Provided is a nozzle header which sprays pressurized water to a high-temperature object, capable of inhibiting a member provided to spray nozzles from being deformed or damaged by heat at the time of operation, caused by radiation heat from the high-temperature object. The nozzle header for spraying water to a targeted object includes a header which supplies pressurized water, one or more of spray nozzles which spray the pressurized water supplied from the header, and a heat removal structure attached so as to be in contact with at least one of the spray nozzles, wherein the heat removal structure includes a coolant passage through which a cooling medium for cooling the heat removal structure itself and the spray nozzles passes.
    Type: Application
    Filed: June 26, 2013
    Publication date: August 13, 2015
    Inventors: Yoichi Haraguchi, Koichi Sakamoto, Manabu Eto, Yuji Ikemoto, Kenji Horii
  • Patent number: 9085022
    Abstract: In order to provide a manufacturing device and a manufacturing method for a hot-rolled steel strip, which are capable of obtaining the desired quality of material by rapid uniform cooling immediately after rolling, and improving yield by early sheet tension and sheet shape measurements, a manufacturing device for a hot-rolled steel strip is provided with a finishing rolling mill line (11), a first cooling unit (13) installed just behind the exit side of the finishing rolling mill line, and a pinch roll (14) which is installed on the exit side of the first cooling unit and in contact with both the upper and lower surfaces of a strip (S), at least a wiping roll (15) located on the upper side of the strip (S) is disposed between the first cooling unit and the pinch roll, and a tension/shape measuring unit (16) for measuring the tension and shape of the strip (S); is installed between the wiping roll and the pinch roll.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: July 21, 2015
    Assignees: MITSUBISHI-HITACHI METALS MACHINERY, INC., NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kenji Horii, Yuji Ikemoto, Koichi Takeno, Manabu Eto, Yoshiro Washikita
  • Patent number: 8850860
    Abstract: Provided is a method of controlling operation of a tandem rolling mill which enables large reduction rolling in the latter-stage stand of the tandem rolling mill necessary for manufacturing fine-grained steel, and so on. The method comprises: a step of determining a first exit-side sheet thickness in rolling a constant portion of a material to be rolled; and a step of determining a second exit-side sheet thickness in rolling a front end portion of the material, such that a pre-tightening load becomes a set value or less; the material is rolled into the second exit-side sheet thickness, until the front end portion is fed into the stands; the constant portion is rolled by the stand given a pre-tightening load into the first exit-side sheet thickness; and the second exit-side sheet thicknesses of the stands given the pre-tightening load are made larger than the first exit-side sheet thickness.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: October 7, 2014
    Assignees: Nippon Steel & Sumitomo Metal Corporation, Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Daisuke Nikkuni, Suguhiro Fukushima, Yoshiro Washikita, Tetsuo Kajihara, Kenji Horii, Taro Sato
  • Publication number: 20140138054
    Abstract: Provided is a cooling apparatus discharging water smoothly corresponding to increase of volume density of cooling water securing a high cooling capability. The apparatus disposed on downstream side from a row of hot finish rolling mill, supplying cooling water from above toward a pass line, includes a plurality of cooling nozzles arranged parallel in a pass line direction, and an upper surface guide disposed between the pass line and the cooling nozzles, wherein a predetermined relation is satisfied when defining: a volume density of cooling water sprayed as qm(m3/(m2┬Ěsec)); a pitch of the cooling nozzle in the pass line direction as L(m); a distance between a lower surface of the upper surface guide and the pass line as hp(m); a uniform cooling width as Wu(m); and a cross-sectional area of virtual flow path of discharging water flowing in a width direction of steel sheet as S(m2).
    Type: Application
    Filed: July 20, 2012
    Publication date: May 22, 2014
    Applicants: MITSUBISHI-HITACHI METALS MACHINERY, INC., NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuaki Kobayashi, Tomofumi Hosho, Keisuke Matsuda, Yoichi Haraguchi, Yuji Ikemoto, Kenji Horii
  • Patent number: 8584923
    Abstract: An endless hot rolling material shear-joining method capable of threading hot rolling materials in a finish rolling process without strip breakage by controlling joining conditions for the hot rolling materials in an endless hot rolling process for high carbon steel, and an endless hot rolling plant therefor are disclosed. The shear-joining method for endless hot rolling materials of high carbon steel includes shear-joining high carbon steel metal bars comprising, in terms of weight %, 0.30% to 1.20% C, inevitable impurities, and balance Fe, or comprising 0.15% to 1.5% C containing at least one of Cr, Ni, Mo, V, Ti, W, B, Nb, and Sb, inevitable impurities, and balance Fe, such that a joined surface of the joined metal bars is formed to be inclined in a thickness direction of the metal bars, in a hot rolling plant by a joiner adapted to join the metal bars after overlapping tail part of a leading one of the metal bar and top part of a trailing metal bar.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 19, 2013
    Assignees: POSCO, Mitsubishi-Hitachi Metals
    Inventors: Jong-Sub Lee, Youn-Hee Kang, Chun-Soo Won, Jong-Bong Lee, Sang-Wook Ha, Kenji Horii, Toshihiro Usugi, Hideaki Furumoto, Shigenori Shirogane, Takao Funamoto
  • Publication number: 20130247638
    Abstract: In order to provide a manufacturing device and a manufacturing method for a hot-rolled steel strip, which are capable of obtaining the desired quality of material by rapid uniform cooling immediately after rolling, and improving yield by early sheet tension and sheet shape measurements, a manufacturing device for a hot-rolled steel strip is provided with a finishing rolling mill line (11), a first cooling unit (13) installed just behind the exit side of the finishing rolling mill line, and a pinch roll (14) which is installed on the exit side of the first cooling unit and in contact with both the upper and lower surfaces of a strip (S), at least a wiping roll (15) located on the upper side of the strip (S) is disposed between the first cooling unit and the pinch roll, and a tension/shape measuring unit (16) for measuring the tension and shape of the strip (S); is installed between the wiping roll and the pinch roll.
    Type: Application
    Filed: September 5, 2011
    Publication date: September 26, 2013
    Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, MITSUBISHI-HITACHI METALS MACHINERY, INC.
    Inventors: Kenji Horii, Yuji Ikemoto, Koichi Takeno, Manabu Eto, Yoshiro Washikita
  • Publication number: 20130019646
    Abstract: Provided is a method of controlling operation of a tandem rolling mill which enables large reduction rolling in the latter-stage stand of the tandem rolling mill necessary for manufacturing fine-grained steel, and so on. The method comprises: a step of determining a first exit-side sheet thickness in rolling a constant portion of a material to be rolled; and a step of determining a second exit-side sheet thickness in rolling a front end portion of the material, such that a pre-tightening load becomes a set value or less; the material is rolled into the second exit-side sheet thickness, until the front end portion is fed into the stands; the constant portion is rolled by the stand given a pre-tightening load into the first exit-side sheet thickness; and the second exit-side sheet thicknesses of the stands given the pre-tightening load are made larger than the first exit-side sheet thickness.
    Type: Application
    Filed: September 24, 2012
    Publication date: January 24, 2013
    Inventors: Daisuke NIKKUNI, Suguhiro Fukushima, Yoshiro Washikita, Tetsuo Kajihara, Kenji Horii, Taro Sato
  • Publication number: 20110174869
    Abstract: An endless hot rolling material shear-joining method capable of threading hot rolling materials in a finish rolling process without strip breakage by controlling joining conditions for the hot rolling materials in an endless hot rolling process for high carbon steel, and an endless hot rolling plant therefor are disclosed. The shear-joining method for endless hot rolling materials of high carbon steel includes shear-joining high carbon steel metal bars comprising, in terms of weight %, 0.30% to 1.20% C, inevitable impurities, and balance Fe, or comprising 0.15% to 1.5% C containing at least one of Cr, Ni, Mo, V, Ti, W, B, Nb, and Sb, inevitable impurities, and balance Fe, such that a joined surface of the joined metal bars is formed to be inclined in a thickness direction of the metal bars, in a hot rolling plant by a joiner adapted to join the metal bars after overlapping tail part of a leading one of the metal bar and top part of a trailing metal bar.
    Type: Application
    Filed: November 20, 2006
    Publication date: July 21, 2011
    Applicants: POSCO, MITSUBISHI-HITACHI METALS MACHINERY, INC.
    Inventors: Jong-Sub Lee, Youn-Hee Kang, Chun-Soo Won, Jong-Bong Lee, Sang-Wook Ha, Kenji Horii, Toshihiro Usugi, Hideaki Furumoto, Shigenori Shirogane, Takao Funamoto
  • Patent number: 7004002
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: February 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe
  • Patent number: 6959578
    Abstract: A multi-row rolling mill has in one housing at least two groups of rolls including at least one pair of work rolls, and constructed so that when the workpiece to be rolled is passed one time, it can be rolled using said respective work rolls. The multi-row rolling mill is characterized in that it is provided with a means for removing the workpiece if the workpiece stops moving between said roll groups.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: November 1, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Horii, Akira Goto, Hideo Kobayashi, Syunsaku Kasai, Yujiro Kobayashi, Takao Sakanaka, Motoyuki Fujii
  • Patent number: 6955287
    Abstract: An upper shearing blade equipped with a protrusion of a triangle-columnar shape and a lower shearing blade equipped with a protrusion of the same shape are applied onto the overlapped portion of metal plates to be bonded, and then pressed into the metal plates in an oblique direction inclined with respect to the thickness direction by a stroke in such a range that the metal plates are not completely cut off. The operating loci of the upper, shearing blade and the lower shearing blade are overlapped each other so that one falls inside the other, and the sheared surfaces of the metal plates are formed into a bonded portion by plastic flow deformation. Therein, since a compressive force is applied onto the portions to be bonded, the portion being defined by the amount of overlap, and the portions are compressed to form a compressed portion after completion of bonding, the bonding strength enhances.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: October 18, 2005
    Assignees: Hitachi, Ltd., Pohang Iron and Steel Co., Ltd., Research Institution of Industrial Science and Technology
    Inventors: Kenji Horii, Yasutsugu Yoshimura, Tadashi Nishino, Takashi Kamoshita, Takayoshi Tomino, Fuminori Ishikawa, Takao Funamoto, Takashi Mashiko, Kenjiro Narita, Jong-Keun Kim, Ki-Chol Kim, Jong-Sub Lee, Hwang-Kyu Hwang, Jung-Sik Lee, Jin-Hee Kim
  • Patent number: 6868707
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: March 22, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe
  • Publication number: 20040206147
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Application
    Filed: May 19, 2004
    Publication date: October 21, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe