Patents by Inventor Shinichi Yasuda

Shinichi Yasuda 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: 11115024
    Abstract: An integrated circuit of an embodiment includes: a logic circuit; and a switch circuit, the logic circuit including: a first memory; a look-up table circuit having a first output terminal; a first selection circuit having a first input terminal connecting to the first output terminal, a second input terminal receiving scan input data, and a second output terminal, the first selection circuit selecting one of the first and second input terminals and connect the selected one to the second output terminal; a flip-flop having a third input terminal connected to the second and third output terminals; and a second selection circuit having a fourth and fifth input terminals connected to the third output terminal and the first output terminal respectively, and a fourth output terminal, the second selection circuit selecting one of the fourth and fifth input terminals and connect the selected one to the fourth output terminal.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: September 7, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Oda, Shinichi Yasuda
  • Publication number: 20210083672
    Abstract: An integrated circuit of an embodiment includes: a logic circuit; and a switch circuit, the logic circuit including: a first memory; a look-up table circuit having a first output terminal; a first selection circuit having a first input terminal connecting to the first output terminal, a second input terminal receiving scan input data, and a second output terminal, the first selection circuit selecting one of the first and second input terminals and connect the selected one to the second output terminal; a flip-flop having a third input terminal connected to the second and third output terminals; and a second selection circuit having a fourth and fifth input terminals connected to the third output terminal and the first output terminal respectively, and a fourth output terminal, the second selection circuit selecting one of the fourth and fifth input terminals and connect the selected one to the fourth output terminal.
    Type: Application
    Filed: March 12, 2020
    Publication date: March 18, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato ODA, Shinichi YASUDA
  • Patent number: 10707219
    Abstract: A semiconductor integrated circuit of an embodiment includes: first to fifth wiring lines; a first OTP memory element including a first and second terminals connected to the first and second wiring lines; a first p-channel transistor including a source and drain terminals connected to the first and third wiring line, and a gate terminal receiving a first control signal; a first n-channel transistor including a source and drain terminals connected to the first and fourth wiring lines, and a gate terminal receiving a second control signal; a second p-channel transistor including a source and drain terminals connected to the second and third wiring lines, and a gate terminal receiving a third control signal; and a second n-channel transistor including a source and drain terminals connected to the second and fifth wiring lines, and a gate terminal receiving a fourth control signal.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 7, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yinghao Ho, Masato Oda, Shinichi Yasuda
  • Publication number: 20200083235
    Abstract: A semiconductor integrated circuit of an embodiment includes: first to fifth wiring lines; a first OTP memory element including a first and second terminals connected to the first and second wiring lines; a first p-channel transistor including a source and drain terminals connected to the first and third wiring line, and a gate terminal receiving a first control signal; a first n-channel transistor including a source and drain terminals connected to the first and fourth wiring lines, and a gate terminal receiving a second control signal; a second p-channel transistor including a source and drain terminals connected to the second and third wiring lines, and a gate terminal receiving a third control signal; and a second n-channel transistor including a source and drain terminals connected to the second and fifth wiring lines, and a gate terminal receiving a fourth control signal.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 12, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yinghao HO, Masato Oda, Shinichi Yasuda
  • Patent number: 10559350
    Abstract: A memory circuit according to an embodiment includes: a first inverter circuit including a first p-channel MOS transistor and a first n-channel MOS transistor; a second inverter circuit cross-coupled with the first inverter and including a second p-channel MOS transistor and a second n-channel MOS transistor; a third n-channel MOS transistor in which one of a source and drain terminals is connected to a first output terminal of the first inverter circuit, and a gate terminal is connected to a first wiring line; a fourth n-channel MOS transistor connected to the third n-channel MOS transistor; a fifth n-channel MOS transistor in which one of a source and drain terminals is connected to a second output terminal of the second inverter circuit; and a sixth n-channel MOS transistor connected to the fifth n-channel MOS transistor.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 11, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Oda, Shinichi Yasuda
  • Patent number: 10511020
    Abstract: An objective of the present invention is to provide a non-aqueous electrolyte secondary battery positive electrode active material formed from a lithium-nickel composite oxide which, while retaining high capacity and a high level of safety, has an excellent cycle characteristic by controlling reaction resistance and a method for producing it. [Solution] A lithium-nickel composite oxide is produced by steps (a) to (c) described below: (a) nickel hydroxide and/or nickel oxyhydroxide in a prescribed composition are sintered in a non-reducing atmosphere having 850° C. or lower to give nickel oxide; (b) after the nickel oxide and a lithium compound are mixed in a prescribed molar ratio, the mixture is sintered in an oxygen atmosphere at a temperature of 650 to 850° C.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: December 17, 2019
    Assignees: SUMITOMO METAL MINING CO., LTD., SANYO ELECTRIC CO., LTD.
    Inventors: Shin Imaizumi, Hideo Sasaoka, Shinichi Yasuda, Yutaka Kawatate, Takahiro Sakamoto
  • Patent number: 10459692
    Abstract: According to one embodiment, a random number generator includes a first circuit which outputs a second oscillation signal having a predetermined duty ratio on the basis of a first oscillation signal, a second circuit which latches values on the basis of the second oscillation signal and a clock having a frequency lower than a frequency of the second oscillation signal, a third circuit which outputs a control signal on the basis of the values, and a fourth circuit which controls the first circuit on the basis of the control signal.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 29, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi Takaya, Shinichi Yasuda, Tetsufumi Tanamoto, Shinobu Fujita
  • Patent number: 10431306
    Abstract: A semiconductor integrated circuit according to an embodiment includes: first to third wiring lines; first memory elements disposed in a cross region between the first wiring lines and the second wiring lines; second memory elements disposed in a cross region between the first wiring lines and the third wiring lines; a first write control circuit connected to the first wiring lines: a first circuit connected to one of the second wiring lines and supplying a first potential; a second circuit connected to the other one of the second wiring lines and supplying a second potential lower than the first potential; SRAM cells connected to the third wiring lines; and a selection circuit including input terminals electrically connected to the first wiring lines and an output terminal, the selection circuit connecting one of the input terminals to the output terminal in accordance with an input signal.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 1, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinichi Yasuda, Masato Oda, Kosuke Tatsumura
  • Patent number: 10424377
    Abstract: A semiconductor integrated circuit according to an embodiment includes: first to third wirings; first current limiters corresponding to the first wirings; second current limiters corresponding to the second wirings; third current limiters corresponding to the third wirings; first drivers corresponding to the first current limiters; second drivers corresponding to the second current limiters; third drivers corresponding to the third current limiters; and a first array and a second array, wherein the first array comprising: fourth wirings corresponding to the first wirings; fifth wirings corresponding to the second wirings; first transistors corresponding to the first wirings; second transistors corresponding to the second wirings; and first resistive change elements arranged in intersecting areas of the fourth wirings and the fifth wirings, respectively, the first resistive change elements including a first terminal connected to corresponding one of the fourth wirings and a second terminal connected to corresp
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 24, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yinghao Ho, Masato Oda, Kosuke Tatsumura, Shinichi Yasuda
  • Publication number: 20190287610
    Abstract: A memory circuit according to an embodiment includes: a first inverter circuit including a first p-channel MOS transistor and a first n-channel MOS transistor; a second inverter circuit cross-coupled with the first inverter and including a second p-channel MOS transistor and a second n-channel MOS transistor; a third n-channel MOS transistor in which one of a source and drain terminals is connected to a first output terminal of the first inverter circuit, and a gate terminal is connected to a first wiring line; a fourth n-channel MOS transistor connected to the third n-channel MOS transistor; a fifth n-channel MOS transistor in which one of a source and drain terminals is connected to a second output terminal of the second inverter circuit; and a sixth n-channel MOS transistor connected to the fifth n-channel MOS transistor.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato ODA, Shinichi YASUDA
  • Patent number: 10360333
    Abstract: A configuration memory circuit according to an embodiment includes: a first and second wirings; and a first to eighth transistors, the first and fourth transistors having a first-conductive-type, the second, third, fifth, and sixth transistors having a second-conductive-type, the first to third transistors being connected in series, the fourth to sixth transistors being connected in series, gates of the first and third transistors being connected to the first wiring, one of a source and a drain of the seventh transistor, and the first wiring, a gate of the second transistor being connected to a third wiring, gates of the fourth and sixth transistors being connected to the second wiring, one of a source and a drain of the eighth transistor, and the second wiring, a gate of the fifth transistor being connected to the third wiring, gates of the seventh and eighth transistors being connected to a fifth wiring.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: July 23, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinichi Yasuda, Masato Oda
  • Publication number: 20190080758
    Abstract: A semiconductor integrated circuit according to an embodiment includes: first to third wirings; first current limiters corresponding to the first wirings; second current limiters corresponding to the second wirings; third current limiters corresponding to the third wirings; first drivers corresponding to the first current limiters; second drivers corresponding to the second current limiters; third drivers corresponding to the third current limiters; and a first array and a second array, wherein the first array comprising: fourth wirings corresponding to the first wirings; fifth wirings corresponding to the second wirings; first transistors corresponding to the first wirings; second transistors corresponding to the second wirings; and first resistive change elements arranged in intersecting areas of the fourth wirings and the fifth wirings, respectively, the first resistive change elements including a first terminal connected to corresponding one of the fourth wirings and a second terminal connected to corresp
    Type: Application
    Filed: February 28, 2018
    Publication date: March 14, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yinghao HO, Masato ODA, Kosuke TATSUMURA, Shinichi YASUDA
  • Patent number: 10218518
    Abstract: An authentication server according to embodiments performs statistical processing on a plurality of pieces of ID data acquired from an electronic device including a PUF circuit generating the pieces of ID data (S1052 to S1071), determines whether the plurality of pieces of ID data are physical random numbers based on a result of the statistical processing (S1072), and when the plurality of pieces of ID data are determined to be physical random numbers, recognizes the result of authentication of the electronic device as a success of authentication (S1073), and when the plurality of pieces of ID data are determined not to be physical random numbers, recognizes a result of authentication of the electronic device as a failure of authentication (S1074).
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: February 26, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsufumi Tanamoto, Shinichi Yasuda, Satoshi Takaya, Masafumi Mori, Takao Marukame
  • Publication number: 20190043581
    Abstract: A semiconductor integrated circuit according to an embodiment includes: first to third wiring lines; first memory elements disposed in a cross region between the first wiring lines and the second wiring lines; second memory elements disposed in a cross region between the first wiring lines and the third wiring lines; a first write control circuit connected to the first wiring lines: a first circuit connected to one of the second wiring lines and supplying a first potential; a second circuit connected to the other one of the second wiring lines and supplying a second potential lower than the first potential; SRAM cells connected to the third wiring lines; and a selection circuit including input terminals electrically connected to the first wiring lines and an output terminal, the selection circuit connecting one of the input terminals to the output terminal in accordance with an input signal.
    Type: Application
    Filed: March 6, 2018
    Publication date: February 7, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinichi Yasuda, Masato Oda, Kosuke Tatsumura
  • Patent number: 10175947
    Abstract: According to an embodiment, an arithmetic device is configured to receive M input signals each representing a two-state value and M coefficients to output an output signal representing a two-state value. The device includes a positive-side current source, a negative-side current source, M cross switches, a coefficient memory unit, and a comparator. The positive-side current source is configured to output a first voltage corresponding to a value of 1/L of the current output from a positive-side terminal. The negative-side current source is configured to output a second voltage corresponding to a value of 1/L of the current output from a negative-side terminal. The memory unit includes M cells corresponding to the respective M coefficients. The comparator is configured to output an output signal having a value corresponding to a comparison result of the first voltage with the second voltage. Each M cell includes a first resistor and a second resistor.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 8, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takao Marukame, Yoshihiro Ueda, Shinji Miyano, Shinichi Yasuda, Yoshifumi Nishi, Mari Matsumoto
  • Patent number: 10127980
    Abstract: An integrated circuit according to an embodiment includes: first and second wiring lines; a memory device including a first and second terminals connected to the first and second wiring line respectively; a first transistor including a high-k metal gate; a first circuit applying a first write voltage between the first and the second terminals, and switch the resistance of the memory device from a high-resistance state to a low-resistance state; a second circuit reading the resistance of the memory device, and comparing a read value of the resistance with a predetermined value; a third circuit lowering a threshold voltage of the first transistor when the read value of the resistance is greater than the predetermined value; a fourth circuit applying a second write voltage between the first and second terminals after the threshold voltage is lowered; and a fifth circuit raising the threshold voltage of the first transistor.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: November 13, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mari Matsumoto, Shinichi Yasuda
  • Patent number: 10090049
    Abstract: An integrated circuit according to an embodiment includes: resistive change elements disposed in intersection regions between first and second wiring lines; a first driver driving the first wiring lines; a second driver driving the second wiring lines; a control circuit controlling the first and second drivers; first current limiter circuits corresponding to the first wiring lines, each of the first current circuits each limiting a maximum current flowing in corresponding one of the first wiring lines to a value not greater than one of a first to third current values; and second current limiter circuits corresponding to the second wiring lines, the second current limiter circuits each limiting a maximum current flowing in corresponding one of the second wiring lines to a value not greater than one of the first to third current value, the limiting current of the selected element being higher than that of the unselected element.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 2, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yinghao Ho, Shinichi Yasuda
  • Publication number: 20180276557
    Abstract: According to one embodiment, a quantum annealing machine 1 includes a quantum bit array 21 which includes a plurality of cells (quantum bits) 211 respectively including a floating gate 105, and a controller 10 which executes writing of data in the plurality of cells 211, and temporally controls tunneling of an electric charge with respect to the floating gate 105.
    Type: Application
    Filed: September 11, 2017
    Publication date: September 27, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Tetsufumi Tanamoto, Yusuke Higashi, Takao Marukame, Shinichi Yasuda, Jun Deguchi
  • Publication number: 20180261287
    Abstract: An integrated circuit according to an embodiment includes: first and second wiring lines; a memory device including a first and second terminals connected to the first and second wiring line respectively; a first transistor including a high-k metal gate; a first circuit applying a first write voltage between the first and the second terminals, and switch the resistance of the memory device from a high-resistance state to a low-resistance state; a second circuit reading the resistance of the memory device, and comparing a read value of the resistance with a predetermined value; a third circuit lowering a threshold voltage of the first transistor when the read value of the resistance is greater than the predetermined value; a fourth circuit applying a second write voltage between the first and second terminals after the threshold voltage is lowered; and a fifth circuit raising the threshold voltage of the first transistor.
    Type: Application
    Filed: September 13, 2017
    Publication date: September 13, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mari MATSUMOTO, Shinichi YASUDA
  • Publication number: 20180151225
    Abstract: An integrated circuit according to an embodiment includes: resistive change elements disposed in intersection regions between first and second wiring lines; a first driver driving the first wiring lines; a second driver driving the second wiring lines; a control circuit controlling the first and second drivers; first current limiter circuits corresponding to the first wiring lines, each of the first current circuits each limiting a maximum current flowing in corresponding one of the first wiring lines to a value not greater than one of a first to third current values; and second current limiter circuits corresponding to the second wiring lines, the second current limiter circuits each limiting a maximum current flowing in corresponding one of the second wiring lines to a value not greater than one of the first to third current value, the limiting current of the selected element being higher than that of the unselected element.
    Type: Application
    Filed: September 11, 2017
    Publication date: May 31, 2018
    Inventors: Yinghao HO, Shinichi YASUDA