Patents by Inventor Naoki Kanazawa

Naoki Kanazawa 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: 10970234
    Abstract: A method is performed to compile input data including a plurality of pulse sequences, hardware parameters obtained from a computing device, and a mathematical model with time-dependent control parameters to decrease a computation time of the input data. The method also includes providing the input data to the computing device to allow the computing device to run a computation of the input data. The method further includes converting the pulse sequences into memory-aligned arrays to decrease the computation time of the input data. The method includes calculating optimized output data using an adaptive step size computation to decrease the computation time needed to compute the output data.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: April 6, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul Nation, Naoki Kanazawa
  • Patent number: 10967447
    Abstract: A metal wire containing tungsten is provided. A tungsten content of the metal wire is at least 90 wt %. A tensile strength of the metal wire is at least 4000 MPa. An elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa. A diameter of the metal wire is at most 60 ?m. An average crystal grain size of the metal wire in a cross-section orthogonal to an axis of the metal wire is at most 0.20 ?m.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: April 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Kanazawa, Naoki Kohyama, Yoshihiro Iguchi, Yuuki Sasagawa, Tetsuji Shibata, Toshiyuki Tani
  • Publication number: 20210081779
    Abstract: A quantum state classifier includes a reservoir computing circuit for post-processing a quantum bit to obtain a readout signal, and a readout circuit, coupled to the reservoir computing circuit, for discriminating a quantum state of the quantum bit from the readout signal from among multiple possible quantum states. The readout circuit is trained in a calibration process respectively activated by a specific one of each of the multiple quantum states such that weights within the linear readout circuit are updated by minibatch learning for each of multiple measurement sequences of the calibration process. The readout circuit generates a binary output after the multiple measurement sequences in a post-calibration classification process for a test quantum bit. The quantum state classifier further includes a controller, coupled to the readout circuit, selectively triggerable to output a control pulse responsive to the quantum state of the test quantum bit indicated by the binary output.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Inventor: Naoki Kanazawa
  • Publication number: 20210019269
    Abstract: A method is performed to compile input data including a plurality of pulse sequences, hardware parameters obtained from a computing device, and a mathematical model with time-dependent control parameters to decrease a computation time of the input data. The method also includes providing the input data to the computing device to allow the computing device to run a computation of the input data. The method further includes converting the pulse sequences into memory-aligned arrays to decrease the computation time of the input data. The method includes calculating optimized output data using an adaptive step size computation to decrease the computation time needed to compute the output data.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 21, 2021
    Applicant: International Business Machines Corporation
    Inventors: Paul Nation, Naoki Kanazawa
  • Publication number: 20200387578
    Abstract: Techniques are provided for improving quantum computing devices. The technology can facilitate generating a sequence of sparse matrices representing a quantum computing device and a noise model. A system can comprise a memory that can store computer executable components and a processor that can execute the computer executable components stored in the memory. The computer executable components can include a term identifier that can identify a plurality of time-dependent terms in a machine-parseable representation of a quantum computing device. The computer executable components can further include a sparse matrix generator that can generate a first sparse matrix for ones of the plurality of time-dependent terms, resulting in a plurality of first sparse matrices.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Inventors: Paul Nation, Naoki Kanazawa, Thomas Arab Alexander
  • Patent number: 10840428
    Abstract: Quantum computing devices include a chip carrier that has a conductive carrier body and one or more readout resonators in the conductive carrier body. Each readout resonator has a center conductor and a coaxial dielectric layer. A quantum chip is on the chip carrier and includes one or more qubits positioned over respective readout resonators.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: November 17, 2020
    Assignee: International Business Machines Corporation
    Inventors: Naoki Kanazawa, Masao Tokunari
  • Patent number: 10790912
    Abstract: Systems, computer-implemented methods, and computer program products to facilitate visualizing arbitrary pulse shapes and schedules in quantum computing applications are provided. According to an embodiment, a system can a processor that can execute computer executable components stored in memory. The system can further comprise a collection component that can receive a pulse schedule of pulse data and control parameters of a quantum device comprising default pulse data of the quantum device. The system can further comprise a plotting component that can generate a plot of the pulse schedule based on the pulse data, the control parameters, and the default pulse data. The system can further comprise a visualization component that can generate a display of the pulse schedule.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 29, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul Nation, Naoki Kanazawa, Thomas Arab Alexander
  • Publication number: 20200287117
    Abstract: Quantum computing devices include a chip carrier that has a conductive carrier body and one or more readout resonators in the conductive carrier body. Each readout resonator has a center conductor and a coaxial dielectric layer. A quantum chip is on the chip carrier and includes one or more qubits positioned over respective readout resonators.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 10, 2020
    Inventors: Naoki Kanazawa, Masao Tokunari
  • Publication number: 20200274622
    Abstract: Systems, computer-implemented methods, and computer program products to facilitate visualizing arbitrary pulse shapes and schedules in quantum computing applications are provided. According to an embodiment, a system can a processor that can execute computer executable components stored in memory. The system can further comprise a collection component that can receive a pulse schedule of pulse data and control parameters of a quantum device comprising default pulse data of the quantum device. The system can further comprise a plotting component that can generate a plot of the pulse schedule based on the pulse data, the control parameters, and the default pulse data. The system can further comprise a visualization component that can generate a display of the pulse schedule.
    Type: Application
    Filed: December 4, 2019
    Publication date: August 27, 2020
    Inventors: Paul Nation, Naoki Kanazawa, Thomas Arab Alexander
  • Patent number: 10722962
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing at least one of tungsten and a tungsten alloy. A nickel plating layer is provided over the metal wire. An adhesion layer is provided at an interface between the metal wire and the nickel plating layer. The adhesion layer contains nickel and tungsten. A plurality of abrasive particles are provided at a surface of the nickel plating layer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: July 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Kanazawa, Tetsuji Shibata, Kazushige Sugita, Hiroshi Gouda, Naoki Kohyama
  • Patent number: 10723042
    Abstract: A saw wire includes a metal wire containing rhenium-tungsten alloy. A rhenium content of the metal wire is at least 0.1 wt % and at most 10 wt % with respect to a total weight of rhenium and tungsten, an elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa, a tensile strength of the metal wire is at least 3500 MPa, and a diameter of the metal wire is at most 60 ?m.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: July 28, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomohiro Kanazawa, Tetsuji Shibata, Kazushige Sugita, Hiroshi Gouda, Naoki Kohyama
  • Publication number: 20200194971
    Abstract: There is provided a semiconductor optical integrated device having a DFB laser, an EA modulator, and an SOA monolithically integrated, and an output light intensity of the semiconductor optical integrated device is maintained constant. The semiconductor optical integrated device includes: a DFB laser; an EA modulator connected to the DFB laser; an SOA monolithically integrated with the DFB laser and the EA modulator on a same substrate and connected to an output end of the EA modulator; and an optical receiver disposed on an output end side of the SOA and having a same composition as the SOA. The optical receiver is configured to monitor change in a detection value according to an intensity of input light to the optical receiver such that drive currents flowing in the DFB laser and the SOA are feedback controlled.
    Type: Application
    Filed: September 12, 2018
    Publication date: June 18, 2020
    Inventors: Takahiko Shindo, Wataru Kobayashi, Naoki Fujiwara, Shigeru Kanazawa
  • Patent number: 10536224
    Abstract: Systems, computer-implemented methods, and computer program products to facilitate visualizing arbitrary pulse shapes and schedules in quantum computing applications are provided. According to an embodiment, a system can a processor that can execute computer executable components stored in memory. The system can further comprise a collection component that can receive a pulse schedule of pulse data and control parameters of a quantum device comprising default pulse data of the quantum device. The system can further comprise a plotting component that can generate a plot of the pulse schedule based on the pulse data, the control parameters, and the default pulse data. The system can further comprise a visualization component that can generate a display of the pulse schedule.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: January 14, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul Nation, Naoki Kanazawa, Thomas Arab Alexander
  • Publication number: 20190301866
    Abstract: Within a housing portion in which a recessed portion is formed, a circuit board is arranged on the bottom surface of the recessed portion, through a first connecting member. An acceleration sensor is stacked on the circuit board, through a second connecting member. Hence, sections that function as three or more springs, i.e., an anti-vibration portion, the first connecting member, and the second connecting member, are situated between an angular velocity sensor and the acceleration sensor. For this reason, transmission of vibration of the vibrating element in the angular velocity sensor to the acceleration sensor can be restricted, and reduction in the detection accuracy of the acceleration sensor can be restricted.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Inventors: Takeru KANAZAWA, Minekazu SAKAI, Naoki YOSHIDA, Kiyomasa SUGIMOTO, Nobuaki KUZUYA
  • Publication number: 20190232404
    Abstract: A metal wire containing tungsten is provided. A tungsten content of the metal wire is at least 90 wt %. A tensile strength of the metal wire is at least 4000 MPa. An elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa. A diameter of the metal wire is at most 60 ?m. An average crystal grain size of the metal wire in a cross-section orthogonal to an axis of the metal wire is at most 0.20 ?m.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro KANAZAWA, Naoki KOHYAMA, Yoshihiro IGUCHI, Yuuki SASAGAWA, Tetsuji SHIBATA, Toshiyuki TANI
  • Publication number: 20190130252
    Abstract: To realize a reservoir computing system in which the reservoir is configured to be suitable for various learning targets, provided is a self-organizing reservoir computing system, including an input layer that outputs an input layer signal corresponding to input data; a reservoir layer that includes therein a nonlinear signal path using physical resonance phenomena and is operable to output an inherent reservoir layer signal in response to the input layer signal; and an output layer that outputs output data corresponding to the reservoir layer signal. Also provided is a self-organizing method.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 2, 2019
    Inventor: Naoki Kanazawa
  • Patent number: 7942023
    Abstract: Disclosed herein are a drum type washing machine and a control program therefore. The washing machine includes a control mechanism to control a motor. The control mechanism includes a torque control unit to perform torque addition processes of adding pulse type torque during only a period for which a drum makes one rotation in a uniform torque control state in which torque of the motor is uniformly controlled at least two times and to perform the second torque addition process after n+0.5 rotations of the drum (n is an integer not less than 1) on the basis of the first torque addition process, and a weight calculation unit to calculate an average value of rotational accelerations of the motor at the respective torque addition processes and to calculate a weight of laundry received in the drum based on the average value.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Naoki Kanazawa
  • Publication number: 20090199598
    Abstract: Disclosed herein are a drum type washing machine and a control program therefore. The washing machine includes a control mechanism to control a motor. The control mechanism includes a torque control unit to perform torque addition processes of adding pulse type torque during only a period for which a drum makes one rotation in a uniform torque control state in which torque of the motor is uniformly controlled at least two times and to perform the second torque addition process after n+0.5 rotations of the drum (n is an integer not less than 1) on the basis of the first torque addition process, and a weight calculation unit to calculate an average value of rotational accelerations of the motor at the respective torque addition processes and to calculate a weight of laundry received in the drum based on the average value.
    Type: Application
    Filed: December 24, 2008
    Publication date: August 13, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Naoki KANAZAWA
  • Publication number: 20080041116
    Abstract: Disclosed herein are a rotating body control device and a washing machine. The rotating body control device includes: a balancing unit including an annular race which is integrally formed with the rotating body and is concentric with the rotation shaft of the rotating body and a plurality of rolling bodies which are movably seated in the race; a detecting unit detecting a bit signal, which is generated according to a variation in relative position between the rolling bodies seated in the race and the eccentric amount of the rotating body which occurs during the rotation of the rotating body; an analyzing unit which analyzes a variation in amplitude of the bit signal detected by the detecting unit; and a control unit which controls the rotation of the rotating body according to the analyzed result of the analyzing unit.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 21, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Naoki Kanazawa, Seilchiro Suzuki, Shoichi Matsui, Sadayuki Sato
  • Publication number: 20080041115
    Abstract: Provided are a washing machine and a method of calculating the amount of laundry. The washing machine includes a spin basket which has an inner space to put laundry therein and is rotatably mounted about a rotation shaft in a rotational direction by driving a motor and includes: a rotation time calculating unit which calculates a time period when the spin basket rotates once; a pulse torque generating unit which supplies a predetermined current or voltage to the motor during the time period when the spin basket rotates once and generates a pulse torque through an output shaft from the motor; an acceleration measuring unit which measures rotation acceleration of the output shaft of the motor according to the pulse torque generated from the motor; and a weight calculating unit which calculates the weight of the laundry put in the inner space of the spin basket by the rotation acceleration.
    Type: Application
    Filed: July 23, 2007
    Publication date: February 21, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Naoki Kanazawa, Soiichiro Suzuki, Shoichi Matsui, Sadayuki Sato