Patents by Inventor Makoto Fujishima

Makoto Fujishima 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: 11260474
    Abstract: A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a machining area and configured to hold a workpiece; a tool spindle and a lower tool rest disposed in the machining area and configured to hold a tool to be used for subtractive manufacturing for the workpiece; an additive manufacturing head configured to discharge a material during additive manufacturing for the workpiece; a workpiece gripper configured to grip the workpiece during transportation of the workpiece into and out of the machining area; and a robot arm on which the additive manufacturing head and the workpiece gripper are mountable. Accordingly, the manufacturing machine improving the productivity in the simple and easy manner is provided.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 1, 2022
    Assignee: DMG MORI CO., LTD.
    Inventors: Masahiko Mori, Yuhei Mezawa, Shigeyuki Takashima, Shigetsugu Sakai, Makoto Fujishima
  • Patent number: 11235387
    Abstract: A workpiece processing method is a method for successively processing a plurality of workpieces including a first workpiece and a second workpiece in a single machining area. The workpiece processing method includes: performing additive manufacturing on the second workpiece in the machining area; and performing subtractive manufacturing on the first workpiece in the machining area while keeping on standby the second workpiece on which additive manufacturing is performed. In this way, the workpiece processing method with improved productivity is provided.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 1, 2022
    Assignee: DMG MORI CO., LTD.
    Inventors: Masahiko Mori, Yuhei Mezawa, Shigeyuki Takashima, Shigetsugu Sakai, Makoto Fujishima
  • Patent number: 11173662
    Abstract: An additive-manufacturing head is used for performing additive manufacturing by feeding a material to a workpiece and irradiating the workpiece with a laser beam. The additive-manufacturing head includes: a ring-shape laser beam forming unit configured to form a laser beam in a ring shape; a laser beam emitting unit configured to emit the ring-shape laser beam toward a workpiece; and a material feeding unit having an outlet which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit and from which the material is released, and configured to feed the material from the outlet toward the workpiece. The head configured in this manner can improve the material usage efficiency for the directed energy deposition method.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 16, 2021
    Assignee: DMG MORI CO., LTD.
    Inventors: Makoto Fujishima, Edvard Govekar, Gideon N. Levy
  • Patent number: 11135772
    Abstract: An additive-manufacturing head includes: a ring-shape laser beam forming unit having axicon lenses facing each other and a convex lens between the axicon lenses to form a laser beam entering through the axicon lens into a ring-shape laser beam and emit the ring-shape laser beam from the other axicon lens; a lens moving mechanism to move the convex lens in the optical axis direction of the laser beam; a laser beam emitting unit to emit the ring-shape laser beam toward a workpiece; and a material powder feeding tube having an outlet which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit and from which material powder is released, to feed the material powder from the outlet toward the workpiece. Accordingly, the additive-manufacturing head capable of freely controlling the size of the laser-beam-irradiated region and the laser beam intensity distribution on the workpiece is provided.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 5, 2021
    Assignee: DMG MORI CO., LTD.
    Inventors: Makoto Fujishima, Yuhei Mezawa, Edvard Govekar, Gideon N. Levy, Andrej Jeromen, Alexander Kuznetsov
  • Patent number: 10960493
    Abstract: A machine for additive manufacturing positions a film having additive material relative to a substrate. The additive material is melted onto the substrate or previously formed layers of a workpiece using a laser. The substrate/workpiece and/or the film can be positioned in multiple axes so that complex shapes can be formed without extraneous supporting structures. The film-based delivery of the additive material allows deposition in orientations other than horizontal as is required for powder-only additive manufacturing and also avoids the inconvenience of collecting and recycling unused loose powdered metal.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 30, 2021
    Assignee: DMG Mori USA
    Inventors: Gregory A. Hyatt, Gideon N. Levy, Makoto Fujishima, Michael J. Panzarella, Masahiko Mori
  • Patent number: 10889098
    Abstract: A method for generating control data is a method for generating control data for manufacturing a product having a designated shape using an additive manufacturing technology. The control data includes a path of a nozzle for supplying a material. The method for generating the control data includes: determining a cutting path for cutting the designated shape by a tool; and determining the path of the nozzle by reproducing the cutting path temporally reversely.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: January 12, 2021
    Assignees: MACHINE TOOL TECHNOLOGIES RESEARCH FOUNDATION, DMG MORI CO., LTD.
    Inventors: Kazuo Yamazaki, David Carter, Makoto Fujishima, Yohei Oda
  • Patent number: 10888923
    Abstract: A manufacturing machine is capable of additive manufacturing. The manufacturing machine includes: a connecting part configured to be connectable to a machine tool capable of subtractive manufacturing; and an additive manufacturing head configured to be positioned in a machining area of the machine tool and discharge a material, when the connecting part is connected to the machine tool. The manufacturing machine for additive manufacturing that can be installed at a low cost is thus provided.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: January 12, 2021
    Assignee: DMG MORI CO., LTD.
    Inventors: Masahiko Mori, Yuhei Mezawa, Shigeyuki Takashima, Shigetsugu Sakai, Makoto Fujishima
  • Publication number: 20190270246
    Abstract: An additive-manufacturing head includes: a ring-shape laser beam forming unit having axicon lenses facing each other and a convex lens between the axicon lenses to form a laser beam entering through the axicon lens into a ring-shape laser beam and emit the ring-shape laser beam from the other axicon lens; a lens moving mechanism to move the convex lens in the optical axis direction of the laser beam; a laser beam emitting unit to emit the ring-shape laser beam toward a workpiece; and a material powder feeding tube having an outlet which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit and from which material powder is released, to feed the material powder from the outlet toward the workpiece. Accordingly, the additive-manufacturing head capable of freely controlling the size of the laser-beam-irradiated region and the laser beam intensity distribution on the workpiece is provided.
    Type: Application
    Filed: May 16, 2017
    Publication date: September 5, 2019
    Applicant: DMG MORI CO., LTD.
    Inventors: Makoto FUJISHIMA, Yuhei MEZAWA, Edvard GOVEKAR, Gideon N. LEVY, Andrej JEROMEN, Alexander KUZNETSOV
  • Patent number: 10377002
    Abstract: A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a first processing area and configured to hold a workpiece; a lower tool rest and a tool spindle disposed in the first processing area and configured to hold a tool to be used for subtractive manufacturing for the workpiece; an additive manufacturing head disposed in a second processing area; and a robot arm configured to hold a workpiece and transport the workpiece between the first processing area and the second processing area. The additive manufacturing head is configured to discharge a material toward the workpiece held by the robot arm during additive manufacturing for the workpiece. Accordingly, the manufacturing machine configured simply to be capable of subtractive manufacturing and additive manufacturing is provided.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: August 13, 2019
    Assignee: DMG MORI CO., LTD.
    Inventors: Masahiko Mori, Yuhei Mezawa, Shigeyuki Takashima, Shigetsugu Sakai, Makoto Fujishima, Eiichiro Gomi
  • Publication number: 20180141174
    Abstract: A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a first processing area and configured to hold a workpiece; a lower tool rest and a tool spindle disposed in the first processing area and configured to hold a tool to be used for subtractive manufacturing for the workpiece; an additive manufacturing head disposed in a second processing area; and a robot arm configured to hold a workpiece and transport the workpiece between the first processing area and the second processing area. The additive manufacturing head is configured to discharge a material toward the workpiece held by the robot arm during additive manufacturing for the workpiece. Accordingly, the manufacturing machine configured simply to be capable of subtractive manufacturing and additive manufacturing is provided.
    Type: Application
    Filed: April 7, 2016
    Publication date: May 24, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Masahiko MORI, Yuhei MEZAWA, Shigeyuki TAKASHIMA, Shigetsugu SAKAI, Makoto FUJISHIMA, Eiichiro GOMI
  • Publication number: 20180093325
    Abstract: A manufacturing machine is capable of additive manufacturing. The manufacturing machine includes: a connecting part configured to be connectable to a machine tool capable of subtractive manufacturing; and an additive manufacturing head configured to be positioned in a machining area of the machine tool and discharge a material, when the connecting part is connected to the machine tool. The manufacturing machine for additive manufacturing that can be installed at a low cost is thus provided.
    Type: Application
    Filed: March 7, 2016
    Publication date: April 5, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Masahiko MORI, Yuhei MEZAWA, Shigeyuki TAKASHIMA, Shigetsugu SAKAI, Makoto FUJISHIMA
  • Patent number: 9927799
    Abstract: A numerical control (NC) program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 27, 2018
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Susumu Mitsuhashi, Makoto Fujishima, Takayuki Nakamura, Hiroshi Shimanoe
  • Publication number: 20180065181
    Abstract: A workpiece processing method is a method for successively processing a plurality of workpieces including a first workpiece and a second workpiece in a single machining area. The workpiece processing method includes: performing additive manufacturing on the second workpiece in the machining area; and performing subtractive manufacturing on the first workpiece in the machining area while keeping on standby the second workpiece on which additive manufacturing is performed. In this way, the workpiece processing method with improved productivity is provided.
    Type: Application
    Filed: March 7, 2016
    Publication date: March 8, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Masahiko MORI, Yuhei MEZAWA, Shigeyuki TAKASHIMA, Shigetsugu SAKAI, Makoto FUJISHIMA
  • Publication number: 20180065208
    Abstract: A manufacturing machine is capable of subtractive manufacturing and additive manufacturing for a workpiece. The manufacturing machine includes: a first headstock and a second headstock disposed in a machining area and configured to hold a workpiece; a tool spindle and a lower tool rest disposed in the machining area and configured to hold a tool to be used for subtractive manufacturing for the workpiece: an additive manufacturing head configured to discharge a material during additive manufacturing for the workpiece a workpiece gripper configured to grip the workpiece during transportation of the workpiece into and out of the machining area; and a robot arm on which the additive manufacturing head and the workpiece gripper are mountable. Accordingly, the manufacturing machine improving the productivity in the simple and easy manner is provided.
    Type: Application
    Filed: March 7, 2016
    Publication date: March 8, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Masahiko MORI, Yuhei MEZAWA, Shigeyuki TAKASHIMA, Shigetsugu SAKAI, Makoto FUJISHIMA
  • Publication number: 20180036948
    Abstract: An additive-manufacturing head is used for performing additive manufacturing by feeding a material to a workpiece and irradiating the workpiece with a laser beam. The additive-manufacturing head includes: a ring-shape laser beam forming unit configured to form a laser beam in a ring shape; a laser beam emitting unit configured to emit the ring-shape laser beam toward a workpiece; and a material feeding unit having an outlet which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit and from which the material is released, and configured to feed the material from the outlet toward the workpiece. The head configured in this manner can improve the material usage efficiency for the directed energy deposition method.
    Type: Application
    Filed: December 28, 2015
    Publication date: February 8, 2018
    Applicant: DMG MORI CO., LTD.
    Inventors: Makoto FUJISHIMA, Edvard GOVEKAR, Gideon N. LEVY
  • Publication number: 20170297323
    Abstract: A method for generating control data is a method for generating control data for manufacturing a product having a designated shape using an additive manufacturing technology. The control data includes a path of a nozzle for supplying a material. The method for generating the control data includes: determining a cutting path for cutting the designated shape by a tool; and determining the path of the nozzle by reproducing the cutting path temporally reversely.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 19, 2017
    Applicants: MACHINE TOOL TECHNOLOGIES RESEARCH FOUNDATION, DMG MORI CO., LTD.
    Inventors: Kazuo YAMAZAKI, David CARTER, Makoto FUJISHIMA, Yohei ODA
  • Publication number: 20170036300
    Abstract: A manufacturing machine includes: an inert gas supplying device which supplies an inert gas into a machining area to adjust an oxygen concentration of a machining atmosphere; and a control device which controls a condition applied to the inert gas supplying device in supplying the inert gas. The control device includes: a storage unit which stores data about a relationship between a type of a powdery material and an oxygen concentration to be set in the machining area; a control unit which receives a type of a powdery material used for additive manufacturing and checks the type of the powdery material input against the data stored in the storage unit to determine a condition applied to the inert gas supplying device in supplying the inert gas; and a communication unit which indicates the determined condition applied in supplying the inert gas to the inert gas supplying device.
    Type: Application
    Filed: July 27, 2016
    Publication date: February 9, 2017
    Applicant: DMG MORI CO., LTD.
    Inventors: Shigeyuki TAKASHIMA, Yuhei Mezawa, Makoto Fujishima
  • Publication number: 20160129528
    Abstract: A machine for additive manufacturing positions a film having additive material relative to a substrate. The additive material is melted onto the substrate or previously formed layers of a workpiece using a laser. The substrate/workpiece and/or the film can be positioned in multiple axes so that complex shapes can be formed without extraneous supporting structures. The film-based delivery of the additive material allows deposition in orientations other than horizontal as is required for powder-only additive manufacturing and also avoids the inconvenience of collecting and recycling unused loose powdered metal.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Applicant: DMG Mori USA
    Inventors: Gregory A. Hyatt, Gideon N. Levy, Makoto Fujishima, Michael J. Panzarella, Masahiko Mori
  • Patent number: 9217438
    Abstract: A pump control device for a pump device having a DC brushless motor as a drive source and a flow rate of the pump device is increased and decreased depending on a corresponding increase and decrease of a rotational speed of the DC brushless motor is structured so that, when the rotational speed of the DC brushless motor is higher than a predetermined speed, the DC brushless motor is controlled in an open loop control and, when the rotational speed of the DC brushless motor is lower than the predetermined speed, the DC brushless motor is controlled in a closed loop control on the basis of a measurement result of an actual rotating speed which is an actual rotational speed of the DC brushless motor.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: December 22, 2015
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Makoto Fujishima
  • Publication number: 20150205286
    Abstract: An NC program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 23, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Susumu Mitsuhashi, Makoto Fujishima, Takayuki Nakamura, Hiroshi Shimanoe