Patents Assigned to IHI Machinery and Furnace Co., Ltd.
  • Patent number: 11820093
    Abstract: A hot-press device includes: a heating furnace; a pair of punches which includes an upper punch and a lower punch provided in the heating furnace and vertically facing each other; a lower press ram which is connected to a lower surface of the lower punch; an upper press ram which is connected to an upper surface of the upper punch; and a pressing device which is connected to any one or both of the lower press ram and the upper press ram and presses the punch so that the pair of punches are close to each other, in which the lower press ram and/or the upper press ram includes a plurality of individual press rams which are disposed at intervals, each individual press ram having one end coupled to the pair of punches.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: November 21, 2023
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Toshiro Tanaka, Hideki Kawamoto, Takuma Yoshida, Hiroyuki Konishi
  • Patent number: 11572614
    Abstract: The multi-chamber heat treatment device includes intermediate conveyors connected together, each treatment conveyor of the intermediate conveyors is attached with a treater that applies predetermined heat treatment to a treatment object and conveys the treatment object to the treater, and each treater is either one of a main treater that applies main treatment to the treatment object, a preheater that applies preheating treatment to the treatment object before the main treatment, and a cooler that applies cooling treatment to the treatment object after the main treatment.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 7, 2023
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Osamu Sakamoto, Ichiro Nakamoto, Takuma Yoshida
  • Patent number: 11248846
    Abstract: A heat treatment system includes heating chambers configured to perform heat treatment on objects to be treated, and a conveyance device configured to load each of the objects to be treated into the heating chambers, unload the object to be treated from the heating chambers, and convey the object to be treated under an oxygen-free atmosphere, wherein the conveyance device includes a cooling device configured to perform cooling treatment on the object to be treated.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: February 15, 2022
    Assignees: IHI Corporation, IHI Machinery and Furnace Co., Ltd.
    Inventors: Kazuhiko Katsumata, Takahiro Nagata
  • Publication number: 20200215781
    Abstract: A hot-press device includes: a heating furnace; a pair of punches which includes an upper punch and a lower punch provided in the heating furnace and vertically facing each other; a lower press ram which is connected to a lower surface of the lower punch; an upper press ram which is connected to an upper surface of the upper punch; and a pressing device which is connected to any one or both of the lower press ram and the upper press ram and presses the punch so that the pair of punches are close to each other, in which the lower press ram and/or the upper press ram includes a plurality of individual press rams which are disposed at intervals, each individual press ram having one end coupled to the pair of punches.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Applicants: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Toshiro TANAKA, Hideki KAWAMOTO, Takuma YOSHIDA, Hiroyuki KONISHI
  • Patent number: 10690416
    Abstract: A heat treatment device includes: a heat treatment chamber which accommodates an object to be treated; a cooling gas supply unit which supplies a cooling gas into the heat treatment chamber; a cooling gas circulation unit which circulates the cooling gas in the heat treatment chamber; and a gas purge unit which gas-purges, with an inert gas, a portion in which there is a possibility of mixing of the cooling gas supplied into the heat treatment chamber and an oxygen gas, in which the cooling gas supply unit supplies a hydrogen gas into the heat treatment chamber as the cooling gas.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 23, 2020
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventor: Kazuhiko Katsumata
  • Patent number: 10676858
    Abstract: The present disclosure provides a drying chamber (condenser) including a container having a steam intake opening, the condenser liquefying steam taken from the steam intake opening into the container, and the drying chamber including a cooling pipe which is disposed in the container and through which coolant circulates.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: June 9, 2020
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Masatoshi Mitsuzuka, Osamu Sakamoto, Takahiro Nagata
  • Patent number: 10648050
    Abstract: This heat treatment apparatus is configured such that a treating target is conveyed via an intermediate conveyance chamber and accommodated in a heating chamber. The heat treatment apparatus is provided with a gas cooling chamber that is disposed adjacent to the intermediate conveyance chamber and in which the treating target is cooled using a cooling gas containing an oxidizer.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 12, 2020
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventor: Kazuhiko Katsumata
  • Publication number: 20200095667
    Abstract: The multi-chamber heat treatment device includes intermediate conveyors connected together, each treatment conveyor of the intermediate conveyors is attached with a treater that applies predetermined heat treatment to a treatment object and conveys the treatment object to the treater, and each treater is either one of a main treater that applies main treatment to the treatment object, a preheater that applies preheating treatment to the treatment object before the main treatment, and a cooler that applies cooling treatment to the treatment object after the main treatment.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicants: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Osamu SAKAMOTO, Ichiro NAKAMOTO, Takuma YOSHIDA
  • Patent number: 10557180
    Abstract: The present disclosure is characterized by inexpensively treating an ammonia gas contained in an exhaust gas after nitriding without performing combustion, adsorption using an adsorption agent, or the like. A vacuum carburizing device of the present disclosure includes a heating furnace which heats a workpiece, an ammonia gas supply device which supplies an ammonia gas and nitrides the workpiece to the heating furnace, and a thermal decomposition furnace which thermally decomposes the ammonia gas discharged from the heating furnace after nitriding.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 11, 2020
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventor: Kazuhiko Katsumata
  • Patent number: 10488115
    Abstract: A multi-chamber heat treatment device according to the present disclosure in which heating chambers are disposed with an intermediate transport chamber interposed therebetween in a top view, and a treatment object is stored in a heating chamber via the intermediate transport chamber, wherein the multi-chamber heat treatment device includes a gas cooling chamber which cools the treatment object using a cooling gas; and a cooling gas circulation device which includes an gas inlet and a gas outlet.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 26, 2019
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Kaoru Isomoto, Akira Nakayama
  • Patent number: 10392676
    Abstract: A heat treatment device includes: a heating device that heats a treatment object; a cooling device including a cooling room that accommodates the treatment object heated by the heating device and into which a cooling medium used for cooling the treatment object is supplied; a pressurized gas supplier that supplies pressurized gas into the cooling room; a pressure relief valve that communicates internal and external areas of the cooling room with each other when the pressure relief valve is opened; a pressure sensor that measures the pressure inside the cooling room; and a controller that controls the pressure relief valve such that the pressure relief valve is opened when a measurement result of the pressure sensor is higher than or equal to a threshold value.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 27, 2019
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Kaoru Isomoto, Gen Nishitani, Akira Nakayama, Takahiro Nagata, Yuusuke Shimizu
  • Publication number: 20190193123
    Abstract: A cleaning device includes at least: a main body including a vapor cleaning chamber configured to perform vapor-cleaning on a workpiece and a dipping cleaning chamber configured to perform dip-cleaning on the workpiece; and a condenser provided on the vapor cleaning chamber to be capable of switching between a communication state and a non-communication state with the vapor cleaning chamber via a vapor inlet port, and configured to condense vapor taken in from the vapor inlet port, in which the condenser includes: a condenser casing in which the vapor inlet port is formed; a cooling pipe through which a coolant flows; and a holding member that holds the cooling pipe to detachably house the cooling pipe in the condenser casing.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Applicants: IHI Corporation, IHI Machinery and Furnace Co., Ltd.
    Inventors: Masatoshi MITSUZUKA, Noboru KIYA, Takahiro NAGATA
  • Patent number: 10323315
    Abstract: A carburizing device includes a furnace body that performs heat treatment on a treatment object to perform carburization treatment on the treatment object, in which: a heater configured to perform heat treatment on the treatment object is provided upright in a vertical direction within the furnace body; a gas supply section configured to supply a gas for burnout toward the heater is provided at a lower end part of the heater; the heater is inserted through a protective tube provided upright in the vertical direction; and the gas supply section is configured to supply the gas for burnout to between the protective tube and the heater.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 18, 2019
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Masatoshi Mitsuzuka, Osamu Sakamoto, Takahiro Nagata
  • Patent number: 10273553
    Abstract: A cooling device configured to cool an article to be processed by spraying a coolant includes a cooling chamber configured to accommodate the article to be processed, a header pipe having a connecting pipe protruding from a main body section to which a nozzle is attached and into which the coolant supplied into the main body section is supplied, and disposed in the cooling chamber, and an attachment section formed at the cooling chamber and into which the connecting pipe is inserted from an inside of the cooling chamber to an outside of the cooling chamber.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 30, 2019
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Kaoru Isomoto, Takahiro Nagata, Akira Nakayama, Yuusuke Shimizu, Gen Nishitani
  • Patent number: 10260814
    Abstract: A conveyance device for a heat treatment device presses a conveyed body to convey the conveyed body in a linear direction, and includes a cylinder mechanisms having a retractable rod that presses the conveyed body, in which: an abutting member is disposed at a tip part of the rod of the cylinder mechanism so that the abutting member abuts locations, which are different from each other in a circumferential direction, on an outer peripheral surface of the conveyed body; a guide rail configured to guide the abutting member is provided; and the abutting member is provided with a traveling roller that travels on the guide rail.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 16, 2019
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Kaoru Isomoto, Gen Nishitani, Akira Nakayama, Takahiro Nagata, Yuusuke Shimizu
  • Patent number: 10118204
    Abstract: A cleaning apparatus includes: a cleaning chamber that accommodates an object to be cleaned; a drying chamber connected to the cleaning chamber; a connecting member connecting a first opening provided in the cleaning chamber and a second opening provided in the drying chamber; a valve element positioned inside the cleaning chamber and facing the first opening; a valve seat facing the valve element; and an actuator that drives the valve element.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 6, 2018
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Masatoshi Mitsuzuka, Osamu Sakamoto, Takahiro Nagata
  • Publication number: 20180274049
    Abstract: A cooling device cools a workpiece using a mist-like coolant and includes a heat transfer coefficient switching device that switches a heat transfer coefficient of the mist-like coolant from a relatively low state to a relatively high state during cooling the workpiece.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Applicants: IHI Corporation, IHI Machinery and Furnace Co., Ltd.
    Inventor: Kazuhiko KATSUMATA
  • Patent number: 9926621
    Abstract: A carburizing device is configured to perform a carburizing treatment on a treatment target, and includes a furnace body, an insulating container provided inside the furnace body, a furnace bed provided inside the insulating container and on which the treatment target is mounted, and a heat source provided inside the insulating container, in which at least surfaces of main components of the furnace bed, the heat source and the insulating container are made of a ceramic material.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: March 27, 2018
    Assignees: IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
    Inventors: Kazuhiko Katsumata, Masatoshi Mitsuzuka, Osamu Sakamoto, Takahiro Nagata
  • Publication number: 20180016651
    Abstract: The present disclosure is characterized by inexpensively treating an ammonia gas contained in an exhaust gas after nitriding without performing combustion, adsorption using an adsorption agent, or the like. A vacuum carburizing device of the present disclosure includes a heating furnace which heats a workpiece, an ammonia gas supply device which supplies an ammonia gas and nitrides the workpiece to the heating furnace, and a thermal decomposition furnace which thermally decomposes the ammonia gas discharged from the heating furnace after nitriding.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Applicants: IHI Corporation, IHI Machinery and Furnace Co., Ltd.
    Inventor: Kazuhiko KATSUMATA
  • Publication number: 20180016652
    Abstract: This heat treatment apparatus is configured such that a treating target is conveyed via an intermediate conveyance chamber and accommodated in a heating chamber. The heat treatment apparatus is provided with a gas cooling chamber that is disposed adjacent to the intermediate conveyance chamber and in which the treating target is cooled using a cooling gas containing an oxidizer.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Applicants: IHI Corporation, IHI Machinery and Furnace Co., Ltd.
    Inventor: Kazuhiko KATSUMATA