Patents by Inventor Masato Oda

Masato Oda 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: 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
  • 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
  • Publication number: 20180212607
    Abstract: An integrated circuit according to an embodiment includes: first through third basic tiles, the second basic tile being located between the first basic tile and the third basic tile, each of the basic tiles including a first logic block configured to perform a logical operation and a first switch block, the first switch block including a first switch circuit, the first switch circuit including: two-terminal switch elements arranged in a matrix form; input terminals, each of the input terminals being connected to one of terminals of each of the two-terminal switch elements aligned in the same column; and output terminals, each of the output terminals being connected to the other one of the terminals of each of the two-terminal switch elements aligned in the same row.
    Type: Application
    Filed: September 11, 2017
    Publication date: July 26, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Masato ODA
  • Patent number: 9954532
    Abstract: An integrated circuit according to an embodiment includes: a first block including a first logic block configured to perform a logical operation, a first switch block circuit configured to control connection and non-connection with the first logic block, and a second switch block circuit configured to control connection and non-connection with the first logic block; and a second block including a second logic block configured to perform a logical operation, a third switch block circuit configured to control connection and non-connection with the second logic block, and a fourth switch block circuit configured to control connection and non-connection with the second logic block, wherein the first switch block circuit is mutually connected with the third and fourth switch block circuits, and the second switch block circuit is mutually connected with the third and fourth switch block circuits.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 24, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Masato Oda
  • Patent number: 9948305
    Abstract: An integrated circuit of an embodiment includes: a first to third wiring lines; a first and second input terminals connected to the second and third wiring lines respectively; a first and second control terminals; a first switch element disposed between the first and second wiring lines, the first switch element including a first and second terminals connected to the first and second wiring lines respectively; a second switch element disposed between the first and third wiring lines, the second switch element including a third and fourth terminals connected to the first and fourth terminals connected to the first and third wiring lines respectively; a first transistor including a source and a drain, one of the source and the drain being connected to the first wiring line; a select circuit including a fifth to eighth terminals; and a logic circuit including a ninth to eleventh terminals.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: April 17, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Oda, Shinichi Yasuda
  • Publication number: 20180062659
    Abstract: An integrated circuit of an embodiment includes: a first to third wiring lines; a first and second input terminals connected to the second and third wiring lines respectively; a first and second control terminals; a first switch element disposed between the first and second wiring lines, the first switch element including a first and second terminals connected to the first and second wiring lines respectively; a second switch element disposed between the first and third wiring lines, the second switch element including a third and fourth terminals connected to the first and fourth terminals connected to the first and third wiring lines respectively; a first transistor including a source and a drain, one of the source and the drain being connected to the first wiring line; a select circuit including a fifth to eighth terminals; and a logic circuit including a ninth to eleventh terminals.
    Type: Application
    Filed: February 28, 2017
    Publication date: March 1, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Oda, Shinichi Yasuda
  • Patent number: 9780030
    Abstract: An integrated circuit according to an embodiment includes: an anti-fuse element including a first terminal and a second terminal; a fuse element including a third terminal connected to the second terminal, and a fourth terminal; a first wiring line connected to the first terminal of the anti-fuse element; and a drive circuit configured to supply a plurality of potentials to the first terminal of the anti-fuse element, the drive circuit being connected to the first wiring line, the potentials being different from each other.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Oda, Mari Matsumoto, Kosuke Tatsumura, Shinichi Yasuda
  • Publication number: 20170272078
    Abstract: An integrated circuit according to an embodiment includes: a first block including a first logic block configured to perform a logical operation, a first switch block circuit configured to control connection and non-connection with the first logic block, and a second switch block circuit configured to control connection and non-connection with the first logic block; and a second block including a second logic block configured to perform a logical operation, a third switch block circuit configured to control connection and non-connection with the second logic block, and a fourth switch block circuit configured to control connection and non-connection with the second logic block, wherein the first switch block circuit is mutually connected with the third and fourth switch block circuits, and the second switch block circuit is mutually connected with the third and fourth switch block circuits.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 21, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Masato ODA
  • Patent number: 9691476
    Abstract: According to one embodiment, an integrated circuit includes first and second data lines, a first memory cell includes first and second resistance changing elements connected in series between the first and second data lines and a first selection transistor including a drain connected to a connection node of the first and second resistance changing elements, and a second memory cell includes third and fourth resistance changing elements connected in series between the first and second data lines and a second selection transistor including a drain connected to a connection node of the third and fourth resistance changing elements.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: June 27, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kosuke Tatsumura, Mari Matsumoto, Masato Oda, Koichiro Zaitsu, Shinichi Yasuda
  • Patent number: 9621159
    Abstract: According to an embodiment, a reconfigurable semiconductor integrated circuit includes first and second blocks. The first block includes first memories; and second memories; a selector selecting one first memory and one second memory; a first logic circuit whose logic is determined according to data read from the selected first memory; and a first switch circuit that is connected to first wires and switches connection between the first wires according to data read from the selected second memory, a part of the first wires being connected to the first logic circuit. The second block includes third and fourth memories; a second logic circuit whose logic is determined according to data read from the third memory; and a second switch circuit that is connected to second wires and switches connection between the second wires according to data read from the fourth memory, a part of the second wires being connected to the second logic circuit.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 11, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masato Oda
  • Patent number: 9601190
    Abstract: A semiconductor integrated circuit according to an embodiment includes: N (?1) input wiring lines; M (?1) output wiring lines; N first wiring lines corresponding to the N input wiring lines; K (>M) second wiring lines crossing the N first wiring lines; a plurality of first resistive change elements disposed at intersections of the first wiring lines and the second wiring lines, each of the first resistive change elements including a first electrode connecting to a corresponding one of the first wiring lines, a second electrode connecting to a corresponding one of the second wiring lines, and a first resistive change layer disposed between the first electrode and the second electrode; a first controller controlling a voltage applied to the first wiring lines; a second controller controlling a voltage applied to the second wiring lines; and a selection circuit selecting M second wiring lines from the K second wiring lines.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: March 21, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichiro Zaitsu, Kosuke Tatsumura, Masato Oda
  • Publication number: 20170025353
    Abstract: An integrated circuit according to an embodiment includes: an anti-fuse element including a first terminal and a second terminal; a fuse element including a third terminal connected to the second terminal, and a fourth terminal; a first wiring line connected to the first terminal of the anti-fuse element; and a drive circuit configured to supply a plurality of potentials to the first terminal of the anti-fuse element, the drive circuit being connected to the first wiring line, the potentials being different from each other.
    Type: Application
    Filed: July 18, 2016
    Publication date: January 26, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato ODA, Mari MATSUMOTO, Kosuke TATSUMURA, Shinichi YASUDA
  • Patent number: 9543957
    Abstract: According to one embodiment, a reconfigurable logic circuit device includes a memory circuit including a cell group which includes unit cells connected in series, a control circuit connected to the unit cell at one end of the cell group, and an output terminal connected to the unit cell at the other end of the cell group; and a switch circuit connected to the output terminal and controlled by a signal from the memory circuit. Each of the unit cells includes a select element including first and second terminals and a control terminal to which a control signal is input, and a memory element including a third terminal connected to the first terminal and a fourth terminal connected to the second terminal.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masato Oda
  • Patent number: 9525422
    Abstract: According to an embodiment, a reconfigurable semiconductor integrated circuit includes memories connected in parallel, a logic circuit whose logic is defined according to data output of one of the memories, a signal output unit, and a switching unit. The signal output unit includes output terminals corresponding to the respective memories. Each terminal outputs a selection signal for enabling the data output or a non-selection signal for disabling the data output to the logic circuit. The signal output unit is configured to output the selection signal in a cyclic manner over the terminals so that one terminal outputs the selection signal and the others output the non-selection signal. The switching unit is configured to set a route between a first output terminal and a second output terminal of the terminals to an open state or a closed state. The route bypasses at least a single output terminal.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 20, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masato Oda
  • Patent number: 9438243
    Abstract: A programmable logic circuit includes: first to third wiring lines, the second wiring lines intersecting with the first wiring lines; and cells provided in intersecting areas, at least one of cells including a first transistor and a programmable device with a first and second terminals, the first terminal connecting to one of a source and a drain of the first transistor, the second terminal being connected to one of the second wiring lines, the other of the source and the drain being connected to one of the first wiring lines, and a gate of the first transistor being connected to one of the third wiring lines. One of source and drain of each of the first cut-off transistors is connected to the one of the second wiring lines, and an input terminal of each of first CMOS inverters is connected to the other of the source and the drain.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 6, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinichi Yasuda, Kosuke Tatsumura, Mari Matsumoto, Koichiro Zaitsu, Masato Oda
  • Patent number: 9431104
    Abstract: A reconfigurable circuit according to an embodiment includes: first wiring lines; second wiring lines crossing the first wiring lines; resistive change elements disposed in intersection regions of the first and second wiring lines, each of the resistive change elements including a first terminal connected to the one of the first wiring lines and a second terminal connected to the one of the second wiring lines, and being switchable between a low-resistance state and a high-resistance state; a first control circuit controlling a voltage to be applied to the first wiring lines; a second control circuit controlling a voltage to be applied to the second wiring lines; and current limiting elements corresponding to the second wiring lines, and controlling current flowing through the resistive change elements connected to the corresponding second wiring line.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 30, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichiro Zaitsu, Shinichi Yasuda, Kosuke Tatsumura, Mari Matsumoto, Masato Oda, Reika Ichihara