Patents by Inventor Hiroki Nakao

Hiroki Nakao 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: 10987775
    Abstract: A machining state display apparatus includes an achievement degree data storage (9) storing machining condition data relating to each of sets of machining conditions and achievement degree data relating to degrees of achievement of evaluation items to be obtained in machining under each of the sets of machining conditions, with the machining condition data and the achievement degree data being associated with each other, a display part (2) displaying a set of machining conditions and degrees of achievement of the evaluation items corresponding thereto on a display (5), and an input part (6) inputting a signal for selecting one from the evaluation items and a required degree of achievement for the selected evaluation item.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: April 27, 2021
    Assignee: DMG MORI CO., LTD.
    Inventors: Shizuo Nishikawa, Koji Iiyama, Hiroki Nakao
  • Publication number: 20210023669
    Abstract: Provided is a machine tool (1) which is capable of measuring machining accuracy of a workpiece (W) with high accuracy and enables the time required from machining to measurement of machining accuracy to be greatly reduced. The machine tool (1) machining a workpiece (W) while moving a tool and the workpiece (W) relative to each other includes a cover (2) separating from outside a machining area for machining the workpiece (W) therein, and temperature adjusting means (30) used in machining of the workpiece (W) to adjust an ambient temperature of the machining area.
    Type: Application
    Filed: January 23, 2019
    Publication date: January 28, 2021
    Applicant: DMG MORI CO., LTD.
    Inventors: Shizuo NISHIKAWA, Masahiro SHIMOIKE, Shuji KOMATSU, Hiroki NAKAO
  • Patent number: 10386814
    Abstract: A machining status display apparatus includes an achievement degree data storage storing achievement degree data relating to a degree of achievement of each of predetermined machining-related evaluation items within a range determined by attainable maximum and minimum values of the evaluation item and storing the degrees of achievement of the evaluation items obtained under each of predetermined sets of machining conditions in association with the set of machining conditions, a display part displaying the degrees of achievement of the evaluation items corresponding to a selected set of machining conditions by referring to the data in the achievement degree data storage, and an input part inputting a selection signal for selecting a set of machining conditions. The display part displays the degrees of achievement of the evaluation items obtained under the set of machining conditions corresponding to the selection signal by referring to the data in the achievement degree data storage.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 20, 2019
    Assignee: DMG MORI CO., LTD.
    Inventors: Norihiro Kumagai, Shizuo Nishikawa, Koji Iiyama, Hiroki Nakao
  • Publication number: 20190134767
    Abstract: A machining state display apparatus includes an achievement degree data storage (9) storing machining condition data relating to each of sets of machining conditions and achievement degree data relating to degrees of achievement of evaluation items to be obtained in machining under each of the sets of machining conditions, with the machining condition data and the achievement degree data being associated with each other, a display part (2) displaying a set of machining conditions and degrees of achievement of the evaluation items corresponding thereto on a display (5), and an input part (6) inputting a signal for selecting one from the evaluation items and a required degree of achievement for the selected evaluation item.
    Type: Application
    Filed: March 17, 2017
    Publication date: May 9, 2019
    Applicant: DMG Mori Co., LTD.
    Inventors: Shizuo Nishikawa, Koji Iiyama, Hiroki Nakao
  • Patent number: 10145332
    Abstract: A method for adjusting the volume of the combustion chamber of an engine with high accuracy is provided. A cylinder head (200) of an engine includes a recess (204) constituting part of the combustion chamber of the engine, and a mating surface (202) for a cylinder block. The method for adjusting the volume of the combustion chamber includes measuring a plurality of portions of the surface of the recess (204) and a plurality of portions of the mating surface (202) by using a displacement meter, calculating differences between the respective measurement values of the mating surface (202), and the design shape of the mating surface (202) in a state in which the design shape of the surface of the recess (204) is fitted with respect to the respective measurement values of the recess (204), and deciding the cutting amount of the mating surface (202) based on the calculated differences and cutting the mating surface (202) by the decided cutting amount.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: December 4, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Shizuo Nishikawa, Hiroki Nakao
  • Patent number: 9999954
    Abstract: A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and acquired in advance; a sound collection unit configured to collect sound in the machining area; a sound selection unit configured to extract a part of sound collected in the machining area in accordance with the setting input for outputting sound to the outside of the machine tool; and a sound output unit configured to output sound extracted by the sound selection unit to the outside of the machining area.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 19, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao, Yutaka Saito
  • Publication number: 20180032054
    Abstract: A machining status display apparatus includes an achievement degree data storage storing achievement degree data relating to a degree of achievement of each of predetermined machining-related evaluation items within a range determined by attainable maximum and minimum values of the evaluation item and storing the degrees of achievement of the evaluation items obtained under each of predetermined sets of machining conditions in association with the set of machining conditions, a display part displaying the degrees of achievement of the evaluation items corresponding to a selected set of machining conditions by referring to the data in the achievement degree data storage, and an input part inputting a selection signal for selecting a set of machining conditions. The display part displays the degrees of achievement of the evaluation items obtained under the set of machining conditions corresponding to the selection signal by referring to the data in the achievement degree data storage.
    Type: Application
    Filed: July 14, 2017
    Publication date: February 1, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Norihiro Kumagai, Shizuo Nishikawa, Koji Iiyama, Hiroki Nakao
  • Patent number: 9863763
    Abstract: In order to adjust the volume of the combustion chamber with high accuracy, a cylinder head 200 includes a recess 204 constituting part of the combustion chamber of the engine and a mating surface for a cylinder block. The recess 204 includes a plurality of openings to which a plurality of specific members are attached respectively. The mating surface 202 is formed to have a cutting stock with respect to three-dimensional shape data of the cylinder head 200 designed to have a target combustion chamber volume. The adjusting method further comprises measuring the surface shape of the recess and the shape of the mating surface around the recess by successively changing the irradiation position of a laser beam using a line laser displacement meter. The adjusting method further comprises removing data of regions equivalent to the plurality of openings from measurement data by comparing the measurement data obtained by the line laser displacement meter with the three-dimensional shape data.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: January 9, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Shizuo Nishikawa, Hiroki Nakao
  • Patent number: 9387563
    Abstract: A machine tool has a cover body with a window, the window including two spaced window plates defining an airtight space therebetween. The space is brought to a pressure other than atmospheric. An indicator is coupled to the cover body and has an indicator portion that is displaced in response to pressure in the space. The indicating portion is visually observable from outside the machine tool, so that the airtightness of the window may be determined by visually observing the position of the indicating portion.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: July 12, 2016
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao
  • Publication number: 20150276393
    Abstract: In order to adjust the volume of the combustion chamber with high accuracy, a cylinder head 200 includes a recess 204 constituting part of the combustion chamber of the engine and a mating surface for a cylinder block. The recess 204 includes a plurality of openings to which a plurality of specific members are attached respectively. The mating surface 202 is formed to have a cutting stock with respect to three-dimensional shape data of the cylinder head 200 designed to have a target combustion chamber volume. The adjusting method further comprises measuring the surface shape of the recess and the shape of the mating surface around the recess by successively changing the irradiation position of a laser beam using a line laser displacement meter. The adjusting method further comprises removing data of regions equivalent to the plurality of openings from measurement data by comparing the measurement data obtained by the line laser displacement meter with the three-dimensional shape data.
    Type: Application
    Filed: March 12, 2015
    Publication date: October 1, 2015
    Inventors: Shizuo NISHIKAWA, Hiroki NAKAO
  • Publication number: 20150275819
    Abstract: A method for adjusting the volume of the combustion chamber of an engine with high accuracy is provided. A cylinder head (200) of an engine includes a recess (204) constituting part of the combustion chamber of the engine, and a mating surface (202) for a cylinder block. The method for adjusting the volume of the combustion chamber includes measuring a plurality of portions of the surface of the recess (204) and a plurality of portions of the mating surface (202) by using a displacement meter, calculating differences between the respective measurement values of the mating surface (202), and the design shape of the mating surface (202) in a state in which the design shape of the surface of the recess (204) is fitted with respect to the respective measurement values of the recess (204), and deciding the cutting amount of the mating surface (202) based on the calculated differences and cutting the mating surface (202) by the decided cutting amount.
    Type: Application
    Filed: March 12, 2015
    Publication date: October 1, 2015
    Inventors: Shizuo NISHIKAWA, Hiroki NAKAO
  • Publication number: 20150258650
    Abstract: A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and acquired in advance; a sound collection unit configured to collect sound in the machining area; a sound selection unit configured to extract a part of sound collected in the machining area in accordance with the setting input for outputting sound to the outside of the machine tool; and a sound output unit configured to output sound extracted by the sound selection unit to the outside of the machining area.
    Type: Application
    Filed: February 5, 2015
    Publication date: September 17, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao, Yutaka Saito
  • Publication number: 20140174774
    Abstract: A machine tool has a cover body with a window, the window including two spaced window plates defining an airtight space therebetween. The space is brought to a pressure other than atmospheric. An indicator is coupled to the cover body and has an indicator portion that is displaced in response to pressure in the space. The indicating portion is visually observable from outside the machine tool, so that the airtightness of the window may be determined by visually observing the position of the indicating portion.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 26, 2014
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao