Patents by Inventor Kenta Yamamoto

Kenta Yamamoto 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: 11137737
    Abstract: A numerical control device according to the present invention includes: an upper limit value acquisition unit which acquires an upper limit value for a cutting speed that is a relative speed of the cutting tool to the workpiece; a reference speed calculation unit which calculates a revolution number of the spindle, and a feedrate; an oscillation speed calculation unit which calculates an oscillation speed that is superimposed on the feedrate; a cutting speed calculation unit which calculates the cutting speed based on the revolution number of the spindle, the feedrate and the oscillation speed; and a speed adjustment unit which adjusts at least either one of the revolution number of the spindle and the feedrate, so that a maximum value of the cutting speed calculated by the cutting speed calculation unit does not exceed the upper limit value acquired by the upper limit value acquisition unit.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 5, 2021
    Assignee: FANUC CORPORATION
    Inventors: Ryou Morihashi, Naoto Sonoda, Kenta Yamamoto
  • Patent number: 11086285
    Abstract: A numerical control device according to the present invention includes: an upper limit value acquisition unit which acquires an upper limit value for a cutting speed that is a relative speed of the cutting tool to the workpiece; a reference speed calculation unit which calculates a revolution number of the spindle, and a feedrate; an oscillation speed calculation unit which calculates an oscillation speed that is superimposed on the feedrate; a cutting speed calculation unit which calculates the cutting speed based on the revolution number of the spindle, the feedrate and the oscillation speed; and a speed adjustment unit which adjusts at least either one of the revolution number of the spindle and the feedrate, so that a maximum value of the cutting speed calculated by the cutting speed calculation unit does not exceed the upper limit value acquired by the upper limit value acquisition unit.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 10, 2021
    Assignee: FANUC CORPORATION
    Inventors: Ryou Morihashi, Naoto Sonoda, Kenta Yamamoto
  • Patent number: 11086284
    Abstract: To provide a controller for a machine tool capable of shredding chips and capable of performing machining by cutting correctly without implementation of a so-called finishing process.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: August 10, 2021
    Assignee: FANUC CORPORATION
    Inventor: Kenta Yamamoto
  • Publication number: 20210221998
    Abstract: A curable resin composition includes a polyether polyol resin represented by general formula (1) and having an epoxy equivalent of 7,000 to 100,000 g/eq, an epoxy resin having a functionality of 3 or more, and an epoxy resin curing agent. Provided is a curable resin composition that is excellent in heat resistance and also excellent in bending resistance in a well-balanced manner and that is applicable in various fields that require heat resistance and toughness, particularly, electrical and electronic fields. n is an integer of 1 or more. A1 and A2 are each a divalent organic group having an aromatic structure and/or an alicyclic structure. B is a hydrogen atom or a glycidyl group.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yosuke TSUGE, Kotaro NOZAWA, Kenta YAMAMOTO, Hayato OGASAWARA
  • Publication number: 20210207266
    Abstract: A vaporizer includes a tank body, a porous member disposed in the vaporizer and heated, a supply tube configured to supply a liquid material to the porous member, and a gas discharge passage configured to discharge a source gas produced by vaporizing the liquid material to the outside. An outlet of the supply tube is disposed in contact with or in close proximity to the porous member. When the outlet is disposed in close proximity to the porous member, a separation distance between the outlet and the porous member is not greater than a distance from the outlet to a bottom of a droplet of the liquid material formed and suspended at the outlet by surface tension.
    Type: Application
    Filed: April 22, 2019
    Publication date: July 8, 2021
    Inventors: Hirofumi ONO, Shigeo YAGI, Kenta YAMAMOTO
  • Patent number: 11054805
    Abstract: A display device acquires and displays information on a machine tool that includes a spindle for relatively rotating workpiece and a cutting tool and feed axes for relatively feeding the workpiece and the cutting tool and that performs machining on the workpiece while making the cutting tool and the workpiece swing relatively, and includes: a first information display unit that displays first information indicating a position to which the cutting tool is relatively fed with respect to the workpiece; a second information display unit that displays second information indicating a relationship between the phase of the spindle and the positions of the feed axes; and a range selection unit that selects part of the first information as a selection range, and the second information display unit changes the display range of the second information such that the display range corresponds to the selection range selected by the range selection unit.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: July 6, 2021
    Assignee: FANUC CORPORATION
    Inventors: Yusaku Oho, Kenta Yamamoto
  • Publication number: 20210181718
    Abstract: A control device for machine tools according to an aspect of the present disclosure controls a machine tool which cuts the workpiece by way of the cutting tool by causing the spindle and the feed axis to cooperatively act, the control device including: a feed command calculation unit which calculates a feed command for causing the feed axis to relatively move in relation to the workpiece; an oscillation phase calculation unit which calculates an oscillation phase that is a phase of oscillation to cause the feed axis to reciprocally move based on a rotation number of the spindle; an oscillation phase compensation unit which compensates the oscillation phase; an oscillation amplitude calculation unit which calculates an oscillation amplitude that is an amplitude of oscillation causing the feed axis to reciprocally move based on the feed command; an oscillation command calculation unit which calculates an oscillation command causing the feed axis to reciprocally move, based on the oscillation amplitude and the o
    Type: Application
    Filed: November 18, 2020
    Publication date: June 17, 2021
    Applicant: FANUC CORPORATION
    Inventors: Ryou MORIHASHI, Kenta YAMAMOTO
  • Patent number: 11021685
    Abstract: An object of the present invention is to provide a method for generating an osteoblast that is applicable to repair of a bone defect due to various tumors, injuries, surgeries, etc. and to treatment for bone resorption typified by a periodontal disease, bone fracture, osteoporosis, etc., and that has a low risk of carcinogenesis. Provided as a means for achieving this object is a method for generating an osteoblast from a somatic cell of a mammal, the method comprising introducing Oct9 gene or an expression product thereof into the somatic cell.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: June 1, 2021
    Assignee: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION
    Inventors: Kenta Yamamoto, Tsunao Kishida, Toshiro Yamamoto, Osam Mazda
  • Patent number: 11014210
    Abstract: A controller of a machine tool includes a plurality of feed axes that feed a tool, machines a workpiece while making the tool oscillate and includes: an oscillation command creation unit which creates an oscillation command based on a machining condition; and a control unit which machines, based on the oscillation command and a movement command, the workpiece while making the tool oscillate, and the oscillation command creation unit creates, when the machining condition indicates machining by an interpolation operation of one feed axis of the plurality of feed axes, the oscillation command so as to make the tool oscillate in a direction along a machining path and changes, when the machining condition indicates machining by a simultaneous interpolation operation of the plurality of feed axes, the oscillation command so as to change the direction of the oscillation with respect to the machining path.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 25, 2021
    Assignee: FANUC CORPORATION
    Inventors: Kenta Yamamoto, Masashi Yasuda
  • Patent number: 10990074
    Abstract: To provide a controller for a machine tool capable of shredding chips without use of oscillation during machining by cutting. A controller is for a machine tool used for machining by cutting of a work as a cutting target by means of coordinated motion of multiple axes including at least a spindle axis. The controller comprises: a movement command generation unit that outputs a movement command for cutting the work by moving a cutting tool and the work relative to each other in a machining direction; and a stop determination unit that outputs a stop instruction for intermittently stopping the relative move in the machining direction to the movement command generation unit. The movement command generation unit outputs a movement command for stopping the relative move between the cutting tool and the work in the machining direction based on the stop instruction. The stop determination unit outputs the stop instruction for a period when the spindle axis rotates 360 degrees or more.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: April 27, 2021
    Assignee: FANUC CORPORATION
    Inventors: Naoto Sonoda, Kenta Yamamoto
  • Publication number: 20210101240
    Abstract: To provide a control device for a machine tool capable of performing thread cutting while reducing the load on the machine tool from the oscillating operation, without extending the cycle time, and capable of reliably shredding chips in a case of performing the non-oscillating operation in the present pass after the oscillating operation in the previous pass. A control device for a machine tool includes: an oscillating operation execution determination unit that determines whether to execute an oscillating operation that causes the cutting tool to oscillate in the radial direction of the workpiece; an oscillation command generation unit that generates an oscillation command of the oscillating operation based on a determination result; a control unit that superimposes the oscillation command on a position command of the feed axis to generate a drive command.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 8, 2021
    Applicant: FANUC CORPORATION
    Inventors: Yuutarou HORIKAWA, Masashi YASUDA, Kenta YAMAMOTO
  • Patent number: 10967474
    Abstract: Provided is a servo controller that can prevent an unnecessary cut from being generated in a workpiece during oscillation machining. A servo controller 20 includes: an oscillation command generating unit 23 that generates an oscillation command for causing a workpiece W and a tool 11 to relatively oscillate; a position deviation estimating unit 31 that estimates an estimated position deviation from a moving command for causing the workpiece W and the tool 11 to relatively move; an adder that applies the oscillation command to a position deviation based on the moving command; a subtractor that deducts the estimated position deviation from a position deviation to which the oscillation command is applied; and a learning control unit that calculates a compensation amount from a position deviation based on the moving command after deducting the estimated position deviation.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: April 6, 2021
    Assignee: FANUC CORPORATION
    Inventors: Ryou Morihashi, Kenta Yamamoto
  • Patent number: 10928112
    Abstract: A heat pump device is equipped with a compressor for compressing a refrigerant; a converter for converting a voltage of an alternating current power supply into a boosted direct current; an inverter for converting the direct current output of the converter into an alternating current, supplying the alternating current to the compressor; a voltage detector for detecting an input voltage to the converter; a stop controller for stopping operation of the converter and the inverter when resonance occurs in the voltage detected by the voltage detector; a limit controller for sending an instruction to limit an input current to the converter so as to avoid the resonance; and a manually operable input interface for sending an instruction to cause the limit control unit to operate.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 23, 2021
    Assignee: Toshiba Carrier Corporation
    Inventors: Kenta Yamamoto, Yuji Katoh, Masaki Kanamori
  • Publication number: 20210028491
    Abstract: The present invention provides an electrolyte solution for a non-aqueous electrolyte solution battery capable of exhibiting excellent high-temperature cycle characteristics and excellent high-temperature storage characteristics at high temperature of 60° C. or above, and a non-aqueous electrolyte solution battery using the same. The electrolyte solution for a non-aqueous electrolyte solution battery of the present invention comprises at least: a non-aqueous solvent; a solute; at least one first compound represented by the following general formula (1); and at least one second compound represented by the following general formula (2).
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Inventors: Takayoshi MORINAKA, Makoto KUBO, Wataru KAWABATA, Kenta YAMAMOTO, Mikihiro TAKAHASHI
  • Patent number: 10859995
    Abstract: To provide a numerical controller for a machine tool capable of shredding chips efficiently along one path by making oscillating motion involving synchronization between multiple axes and intermittently making cutting-out motion and cutting-in motion.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 8, 2020
    Assignee: FANUC CORPORATION
    Inventors: Kenta Yamamoto, Naoto Sonoda
  • Patent number: 10847838
    Abstract: The present invention provides an electrolyte solution for a non-aqueous electrolyte solution battery capable of exhibiting excellent high-temperature cycle characteristics and excellent high-temperature storage characteristics at high temperature of 60° C. or above, and a non-aqueous electrolyte solution battery using the same. The electrolyte solution for a non-aqueous electrolyte solution battery of the present invention comprises at least: a non-aqueous solvent; a solute; at least one first compound represented by the following general formula (1); and at least one second compound represented by the following general formula (2).
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: November 24, 2020
    Assignee: Central Glass Co., Ltd.
    Inventors: Takayoshi Morinaka, Makoto Kubo, Wataru Kawabata, Kenta Yamamoto, Mikihiro Takahashi
  • Patent number: 10802461
    Abstract: A controller for a machine tool is configured to shred chips in thread cutting. The controller includes a processor that calculates an oscillation amplitude and an oscillation direction for shredding the chips from lathe-turning machining. The chip shredding is based on an infeed amount in a radial direction of a work and a shift amount in a circumferential direction of the work relative to a last machining path of a tool used for the lathe-turning machining on the work. The processor also calculates an oscillation command for causing the work and the tool to oscillate relative to each other based on the calculated oscillation amplitude and the oscillation direction. The processor then adds a movement command for moving the work and the tool relative to each other for the machining and the oscillation command.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 13, 2020
    Assignee: FANUC CORPORATION
    Inventor: Kenta Yamamoto
  • Publication number: 20200319616
    Abstract: A control device calculates a position deviation between a position of a movable member designated by a position command and a measured position of the movable member by a position detector at each sampling period, adds a disturbance signal generated from a phase signal having a predetermined period to a drive signal generated from the position deviation to which an amount of correction is added, causes a motor for driving the movable member to operate based on the drive signal to which the disturbance signal is added, calculates the amount of correction by using a dynamic characteristic compensation filter in such a way as to reduce the position deviation, and changes a configuration of the dynamic characteristic compensation filter in such a way that an evaluation value related to magnitude of the position deviation satisfies a predetermined condition.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Inventors: Yusaku OHO, Naoto SONODA, Kenta YAMAMOTO
  • Publication number: 20200306916
    Abstract: Provided is a servo controller that can prevent an unnecessary cut from being generated during oscillation machining. A servo controller which controls a machine tool 10 that turns a workpiece W by cooperative operation of a plurality of axes includes: an oscillation command generating unit 23 that generates an oscillation command for causing the workpiece W and the tool 11 to relatively oscillate; a deviation deducting unit 31, 241 that applies the oscillation command to a position deviation based on a moving command for causing the workpiece W and the tool 11 to relatively move, and deducts a steady-state position deviation; and a learning control unit 27 that calculates a compensation amount from a position deviation based on the moving command after deducting the steady-state position deviation.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicant: FANUC CORPORATION
    Inventors: Ryou MORIHASHI, Kenta YAMAMOTO
  • Publication number: 20200306915
    Abstract: Provided is a servo controller that can prevent an unnecessary cut from being generated in a workpiece during oscillation machining. A servo controller 20 includes: an oscillation command generating unit 23 that generates an oscillation command for causing a workpiece W and a tool 11 to relatively oscillate; a position deviation estimating unit 31 that estimates an estimated position deviation from a moving command for causing the workpiece W and the tool 11 to relatively move; an adder that applies the oscillation command to a position deviation based on the moving command; a subtractor that deducts the estimated position deviation from a position deviation to which the oscillation command is applied; and a learning control unit that calculates a compensation amount from a position deviation based on the moving command after deducting the estimated position deviation.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicant: FANUC CORPORATION
    Inventors: Ryou MORIHASHI, Kenta YAMAMOTO