Patents by Inventor Naoki Mukai

Naoki Mukai 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: 11484962
    Abstract: A welding torch for arc welding in a shielding gas atmosphere, includes: a contact tip for feeding a welding wire; a suction nozzle surrounding the welding wire, and sucking a gas from a space between the suction nozzle and the welding wire; and a shielding gas supply nozzle provided on the outer periphery of the suction nozzle, and supplying the shielding gas toward a welded portion from a space between the shielding gas supply nozzle and the suction nozzle. The welding torch satisfies “7?Ltk?17 and 0?Lts?18”, where Lts [mm] is a distance between the tip of the contact tip and the tip of the shielding gas supply nozzle, and Ltk [mm] is a distance between the tip of the contact tip and the tip of the suction nozzle.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 1, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Naoki Mukai, Reiichi Suzuki, Tokuji Maruyama
  • Publication number: 20220219266
    Abstract: The present invention relates to a flux-cored wire for positive polarity gas-shielded arc welding use, in which a flux contains a metal powder and also contains BaF2 and SrF2 and AlF3 and/or CaF2 as fluorides wherein the content of BaF2 is 1.0 to 4.5%, the content of SrF2 is 2.0% or less, the content of CaF2 is 0.45% or less and the content of AlF3 is 0.70% or less, at least one of metal elements constituting the flux and the fluorides is a strong deoxidizing metal element having a specified standard formation Gibbs energy, and the content of each of an oxide and a carbonate in the flux is 0.5% or less.
    Type: Application
    Filed: May 1, 2020
    Publication date: July 14, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Shun IZUTANI, Takashi YASHIMA
  • Patent number: 11379159
    Abstract: An information processing device includes a reception unit, a generation unit, and a display control unit. The reception unit receives, for a screen on which a first instruction part for issuing an instruction to execute a first process for which a set value for a setting item is set and a second instruction part for issuing an instruction to execute a second process for which a set value for a setting item is set are displayed, a synthesizing operation for synthesizing the first instruction part and the second instruction part. The generation unit integrates, by the received synthesizing operation, the first process regarding the first instruction part and the second process regarding the second instruction part to generate a specific process. The display control unit performs control such that a specific instruction part for issuing an instruction to execute the specific process is displayed on the screen.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 5, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Masakazu Ketsuka, Ichiro Shiozaki, Nobumi Kusano, Naoki Mukai
  • Publication number: 20220193833
    Abstract: The present invention relates to a flux-cored wire which can be used for straight-polarity gas-shielded arc welding, wherein a flux contains one or several types of metal compound powders and, when one or several metal elements constituting the metal compound powders are formed into stable compounds under a high-temperature environment, the relationship between the weighted geometric mean value (?) of the work functions of the stable compounds and the wire diameter (D) of the flux-cored wire satisfies the following formula: {1.00????0.0908D2+0.5473D+1.547}.
    Type: Application
    Filed: May 1, 2020
    Publication date: June 23, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Shun IZUTANI
  • Patent number: 11203080
    Abstract: Provided is a welding method using a special torch and a flux cored wire, in which the special torch has a suction nozzle between the contact tip and the shield nozzle, and the flux cored wire has a flux filled inside the steel outer casing, and a seam portion where both ends of a metal in a width direction of the steel outer casing are butted or overlapped in a longitudinal direction of the flux cored wire.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 21, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Naoki Mukai, Tokuji Maruyama, Reiichi Suzuki
  • Patent number: 11153448
    Abstract: An information processing apparatus includes a display that displays a first operator corresponding to a standard application and a second operator corresponding to a one-touch application of a same type that is obtained by changing a setting value of a function of the standard application and that starts if the second operator is touched and a controller that displays, in association with the second operator, information indicating a difference in the setting value.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: October 19, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Masakazu Ketsuka, Naoki Mukai, Kohei Kaibara
  • Publication number: 20200230733
    Abstract: A purpose of the present invention is to provide a flux-cored wire that excels in slag removability and weldability, and is capable of high-efficiency operation without the risk of reheat cracking and makes it possible to obtain a welding bead with high corrosion resistance even when used in equipment operating at high temperature for a long time. The present invention relates to a flux-cored wire for gas-shielded arc welding that is used for welding using a specific shielding gas having a high Ar ratio, includes substantially no As, Sb, Pb and Bi, has slag component and alloy component compositions satisfying predetermined conditions, and satisfies the relationship {(3×?O2?)+?CO2?+(0.0085×A2)?(0.19×A)}?20.0 (where A={?Cr?+(4.3×?Nb?)}).
    Type: Application
    Filed: November 16, 2018
    Publication date: July 23, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventor: Naoki MUKAI
  • Publication number: 20190047072
    Abstract: A welding torch (100) for arc welding in a shielding gas atmosphere, includes: a contact tip (25) for feeding a welding wire (13); a suction nozzle (23) surrounding the welding wire, and sucking a gas from a space between the suction nozzle (23) and the welding wire; and a shielding gas supply nozzle (21) provided on the outer periphery of the suction nozzle (23), and supplying the shielding gas toward a welded portion from a space between the shielding gas supply nozzle (21) and the suction nozzle (23). The welding torch (100) satisfies “7?Ltk?17 and 0?Lts?18”, where Lts [mm] is a distance between the tip of the contact tip (25) and the tip of the shielding gas supply nozzle (21), and Ltk [mm] is a distance between the tip of the contact tip (25) and the tip of the suction nozzle (23).
    Type: Application
    Filed: February 27, 2017
    Publication date: February 14, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Reiichi SUZUKI, Tokuji MARUYAMA
  • Publication number: 20190030636
    Abstract: Provided is a welding method using a special torch and a flux cored wire, in which the special torch has a suction nozzle between the contact tip and the shield nozzle, and the flux cored wire has a flux filled inside the steel outer casing, and a seam portion where both ends of a metal in a width direction of the steel outer casing are butted or overlapped in a longitudinal direction of the flux cored wire.
    Type: Application
    Filed: March 2, 2017
    Publication date: January 31, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Tokuji MARUYAMA, Reiichi SUZUKI
  • Publication number: 20180364952
    Abstract: An information processing device includes a reception unit, a generation unit, and a display control unit. The reception unit receives, for a screen on which a first instruction part for issuing an instruction to execute a first process for which a set value for a setting item is set and a second instruction part for issuing an instruction to execute a second process for which a set value for a setting item is set are displayed, a synthesizing operation for synthesizing the first instruction part and the second instruction part. The generation unit integrates, by the received synthesizing operation, the first process regarding the first instruction part and the second process regarding the second instruction part to generate a specific process. The display control unit performs control such that a specific instruction part for issuing an instruction to execute the specific process is displayed on the screen.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 20, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masakazu KETSUKA, Ichiro SHIOZAKI, Nobumi KUSANO, Naoki MUKAI
  • Publication number: 20180338051
    Abstract: An information processing apparatus includes a display that displays a first operator corresponding to a standard application and a second operator corresponding to a one-touch application of a same type that is obtained by changing a setting value of a function of the standard application and that starts if the second operator is touched and a controller that displays, in association with the second operator, information indicating a difference in the setting value.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 22, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masakazu KETSUKA, Naoki MUKAI, Kohei KAIBARA
  • Publication number: 20170355044
    Abstract: Provided is a flux-cored wire which can be MIG-welded at any welding position using a pure Ar gas as a shielding gas. A flux-cored wire having a flux filled in the outer skin thereof, wherein TiO2, Al2O3, SiO2 and ZrO2 are contained in amounts of 4.7 to 8.5% by mass, 0.5 to 3.5% by mass, 0.5 to 2.0% by mass and 0.8 to 3.0% by mass, respectively, and metal oxides are also contained in the total amount of 8.0 to 13.5% by mass all relative to the total mass of the wire, and the amount of a metal fluoride is limited to 0.02% by mass or less (including 0% by mass).
    Type: Application
    Filed: November 30, 2015
    Publication date: December 14, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Minoru MIYATA, Reiichi SUZUKI
  • Publication number: 20150056474
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Hiroyuki OTA, Haruhiko FUJISAWA, Naoki MUKAI, Satoru FUKIAGE, Kenji SANO, Shigeo FUJITANI
  • Publication number: 20100319728
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of(Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Application
    Filed: August 24, 2010
    Publication date: December 23, 2010
    Inventors: Hiroyuki OTA, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani
  • Patent number: 7803471
    Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 28, 2010
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hiroyuki Ota, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani