Patents by Inventor Takatoshi MINAMOTO

Takatoshi MINAMOTO 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).

  • Publication number: 20230207012
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Applicant: KIOXIA CORPORATION
    Inventors: Takatoshi MINAMOTO, Toshiki HISADA, Dai NAKAMURA
  • Patent number: 11610630
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 21, 2023
    Assignee: Kioxia Corporation
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20220223611
    Abstract: A semiconductor device has a first conductivity type semiconductor substrate. A second conductivity type first impurity diffusion layer is disposed in a surface region of the semiconductor substrate. A resistance element is configured with a first conductivity type second impurity diffusion layer disposed in the first impurity diffusion layer in the surface region of the semiconductor substrate. In a transistor, a gate is connected to an input portion of the resistance element, a source is connected to the first impurity diffusion layer, and a drain is connected to a voltage source higher than the voltage of the input portion. A current source is connected to the source.
    Type: Application
    Filed: July 7, 2021
    Publication date: July 14, 2022
    Applicant: Kioxia Corporation
    Inventors: Takatoshi MINAMOTO, Sho TOKAIRIN, Yoshinao SUZUKI
  • Publication number: 20210202002
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi MINAMOTO, Toshiki HISADA, Dai NAKAMURA
  • Patent number: 10978151
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffuse layers.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: April 13, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20190371404
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffuse layers.
    Type: Application
    Filed: August 15, 2019
    Publication date: December 5, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Patent number: 10431309
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: October 1, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20190237143
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Patent number: 10304538
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 28, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20180322924
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi MINAMOTO, Toshiki HISADA, Dai NAKAMURA
  • Patent number: 10049745
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 14, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20170256318
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 7, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takatoshi MINAMOTO, Toshiki HISADA, Dai NAKAMURA
  • Patent number: 9691484
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: June 27, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20160293257
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 6, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takatoshi MINAMOTO, Toshiki HISADA, Dai NAKAMURA
  • Patent number: 9324432
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: April 26, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Patent number: 8779844
    Abstract: A semiconductor integrated circuit according to an embodiment includes a transfer transistor including a first gate electrode, the first gate electrode and a diffusion layer being diode-connected with a first wiring, and a clock signal line to which a clock signal is supplied, at least a portion of a first partial clock signal line, which is a portion of the clock signal line, being formed above the first gate electrode.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 15, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mai Muramoto, Takatoshi Minamoto
  • Publication number: 20140085977
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Application
    Filed: December 5, 2013
    Publication date: March 27, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takatoshi MINAMOTO, Toshiki Hisada, Dai Nakamura
  • Patent number: 8659968
    Abstract: According to one embodiment, a power supply circuit, which generates a power supply voltage which is applied to a memory cell array including a plurality of memory cells disposed at intersections between a plurality of word lines and a plurality of bit lines, comprises a first boost circuit configured to boost an input voltage, a first voltage step-down circuit having an input connected to an output of the first boost circuit, and a voltage control circuit configured to control the first boost circuit and the first voltage step-down circuit. The voltage control circuit is configured to generate, not via the first voltage step-down circuit, a voltage which is boosted by the first boost circuit, when a first voltage is transferred to a non-selected memory cell.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 25, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takatoshi Minamoto
  • Patent number: 8630106
    Abstract: A semiconductor memory device includes a memory cell unit, word lines, a driver circuit, and first transistors. The word lines are connected to the control gates of 0-th to N-th memory cells. The (N+1) number of first transistors transfer the voltage to the word lines respectively. Above one of the first transistors which transfers the voltage to an i-th (i is a natural number in the range of 0 to N) word line, M (M<N) of the word lines close to the i-th word line pass through a region above the gate electrode by a first level interconnection without passing over the impurity diffused layers.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: January 14, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takatoshi Minamoto, Toshiki Hisada, Dai Nakamura
  • Publication number: 20120306570
    Abstract: A semiconductor integrated circuit according to an embodiment includes a transfer transistor including a first gate electrode, the first gate electrode and a diffusion layer being diode-connected with a first wiring, and a clock signal line to which a clock signal is supplied, at least a portion of a first partial clock signal line, which is a portion of the clock signal line, being formed above the first gate electrode.
    Type: Application
    Filed: December 12, 2011
    Publication date: December 6, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mai MURAMOTO, Takatoshi Minamoto