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Kiyofumi SAKURAI

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Semiconductor storage device
    • Patent number 11,810,620
    • Issue date Nov 7, 2023
    • Kioxia Corporation
    • Hiroyuki Takenaka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Semiconductor storage device
    • Patent number 11,587,626
    • Issue date Feb 21, 2023
    • Kioxia Corporation
    • Toru Ozawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Semiconductor storage device
    • Patent number 10,861,865
    • Issue date Dec 8, 2020
    • TOSHIBA MEMORY CORPORATION
    • Yoshiaki Takahashi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Nonvolatile semiconductor memory device
    • Patent number 8,942,039
    • Issue date Jan 27, 2015
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    NAND flash memory
    • Patent number 8,233,325
    • Issue date Jul 31, 2012
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    NAND flash memory
    • Patent number 7,952,930
    • Issue date May 31, 2011
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Application specific semiconductor integrated circuit and its manuf...
    • Patent number 7,650,584
    • Issue date Jan 19, 2010
    • Kabushiki Kaisha Toshiba
    • Hitoshi Shiga
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Non-volatile semiconductor memory
    • Patent number 7,274,617
    • Issue date Sep 25, 2007
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Dynamic type memory
    • Patent number RE37427
    • Issue date Oct 30, 2001
    • Kabushiki Kaisha Toshiba
    • Masaki Ogihara
    • 365 - Static information storage and retrieval
  • Information Patent Grant

    Substrate structure of semi-conductor device
    • Patent number 6,104,233
    • Issue date Aug 15, 2000
    • Kabushiki Kaisha Toshiba
    • Syuso Fujii
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Dynamic type memory
    • Patent number 5,712,827
    • Issue date Jan 27, 1998
    • Kabushiki Kaisha Toshiba
    • Masaki Ogihara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Dynamic memory
    • Patent number 5,642,326
    • Issue date Jun 24, 1997
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Dynamic type memory
    • Patent number 5,586,078
    • Issue date Dec 17, 1996
    • Kabushiki Kaisha Toshiba
    • Satoru Takase
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Bias voltage generation circuit
    • Patent number 5,506,540
    • Issue date Apr 9, 1996
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Semiconductor memory device
    • Patent number 5,410,512
    • Issue date Apr 25, 1995
    • Kabushiki Kaisha Toshiba
    • Satoru Takase
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Protection circuit for use in semiconductor integrated circuit device
    • Patent number 5,072,271
    • Issue date Dec 10, 1991
    • Kabushiki Kaisha Toshiba
    • Mitsuru Shimizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor device
    • Patent number 5,066,997
    • Issue date Nov 19, 1991
    • Kabushiki Kaisha Toshiba
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    SEMICONDUCTOR STORAGE DEVICE
    • Publication number 20240029797
    • Publication date Jan 25, 2024
    • KIOXIA Corporation
    • Hiroyuki TAKENAKA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SEMICONDUCTOR STORAGE DEVICE
    • Publication number 20220246196
    • Publication date Aug 4, 2022
    • KIOXIA Corporation
    • Hiroyuki TAKENAKA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SEMICONDUCTOR STORAGE DEVICE
    • Publication number 20220093186
    • Publication date Mar 24, 2022
    • KIOXIA Corporation
    • Toru OZAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    SEMICONDUCTOR STORAGE DEVICE
    • Publication number 20200295024
    • Publication date Sep 17, 2020
    • Toshiba Memory Corporation
    • Yoshiaki TAKAHASHI
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
    • Publication number 20140063953
    • Publication date Mar 6, 2014
    • KABUSHIKI KAISHA TOSHIBA
    • Kiyofumi SAKURAI
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    NAND FLASH MEMORY
    • Publication number 20110216593
    • Publication date Sep 8, 2011
    • Kiyofumi SAKURAI
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    NAND FLASH MEMORY
    • Publication number 20100014350
    • Publication date Jan 21, 2010
    • Kiyofumi SAKURAI
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    APPLICATION SPECIFIC SEMICONDUCTOR INTEGRATED CIRCUIT AND ITS MANUF...
    • Publication number 20080074929
    • Publication date Mar 27, 2008
    • Kabushiki Kaisha Toshiba
    • Hitoshi SHIGA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Non-volatile semiconductor memory
    • Publication number 20060133139
    • Publication date Jun 22, 2006
    • KABUSHIKI KAISHA TOSHIBA
    • Kiyofumi Sakurai
    • G11 - INFORMATION STORAGE