Patents by Inventor Takuya Kusaka

Takuya Kusaka 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: 11892503
    Abstract: A semiconductor device includes first and second chips in a package. A first pad is on the first chip and electrically connected to a node between a power supply pad and a ground pad on the first chip. Second and third pads are on the second chip. An internal wiring connects the first pad to the second pad within the package. A power circuit on the semiconductor chip configured to supply a current to the second pad. A switch is on the second chip between the second pad and the power supply circuit to connect or disconnect the second pad from the power circuit. A control circuit is on the second chip and configured to output a first signal for the switch in response to a test signal supplied to the third pad and a second signal to the power circuit to cause the power circuit to output current.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: February 6, 2024
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Takuya Kusaka, Hirosuke Narai, Kazunori Masuda, Makoto Iwai
  • Publication number: 20230296669
    Abstract: A semiconductor device includes first and second chips in a package. A first pad is on the first chip and electrically connected to a node between a power supply pad and a ground pad on the first chip. Second and third pads are on the second chip. An internal wiring connects the first pad to the second pad within the package. A power circuit on the semiconductor chip configured to supply a current to the second pad. A switch is on the second chip between the second pad and the power supply circuit to connect or disconnect the second pad from the power circuit. A control circuit is on the second chip and configured to output a first signal for the switch in response to a test signal supplied to the third pad and a second signal to the power circuit to cause the power circuit to output current.
    Type: Application
    Filed: August 29, 2022
    Publication date: September 21, 2023
    Inventors: Takuya KUSAKA, Hirosuke NARAI, Kazunori MASUDA, Makoto IWAI
  • Publication number: 20220262444
    Abstract: A non-volatile memory of an embodiment includes: a memory cell array including a plurality of memory cell transistors; a plurality of word lines connected to a plurality of gates of the plurality of respective memory cell transistors; a VPGM monitor connected to at least one of the plurality of word lines; and a sequencer. When writing voltage is applied to a selected word line selected from among the plurality of word lines at data writing to the memory cell array, the sequencer detects voltage of the selected word line through the VPGM monitor and determines whether detected voltage obtained through the detection has reached a predetermined value.
    Type: Application
    Filed: September 1, 2021
    Publication date: August 18, 2022
    Applicant: Kioxia Corporation
    Inventors: Ryota HIRAI, Daisuke ARIZONO, Yasuhiro SHIINO, Takuya KUSAKA
  • Patent number: 11398277
    Abstract: A semiconductor storage device of an embodiment includes a control circuit configured to execute a writing sequence in which a loop including a program operation that writes data to memory cells and a program verify operation that verifies the data written in the memory cells is repeated a plurality of times by increasing a program voltage by a predetermined step-up voltage each time, the control circuit being capable of executing reading verify that verifies the data written in the memory cells in the writing sequence, and the control circuit detects characteristic variation of a characteristic that causes disturbance, and determines whether to perform the reading verify based on a result of the detection.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: July 26, 2022
    Assignee: Kioxia Corporation
    Inventors: Takuya Kusaka, Daisuke Arizono, Yoshikazu Harada
  • Publication number: 20220084595
    Abstract: A semiconductor storage device of an embodiment includes a control circuit configured to execute a writing sequence in which a loop including a program operation that writes data to memory cells and a program verify operation that verifies the data written in the memory cells is repeated a plurality of times by increasing a program voltage by a predetermined step-up voltage each time, the control circuit being capable of executing reading verify that verifies the data written in the memory cells in the writing sequence, and the control circuit detects characteristic variation of a characteristic that causes disturbance, and determines whether to perform the reading verify based on a result of the detection.
    Type: Application
    Filed: March 12, 2021
    Publication date: March 17, 2022
    Applicant: Kioxia Corporation
    Inventors: Takuya KUSAKA, Daisuke ARIZONO, Yoshikazu HARADA
  • Patent number: 10483207
    Abstract: According to one embodiment, the insulating layer is provided on the terrace portions. The plurality of contact portions extend through the insulating layer in the stacking direction and contact the terrace portions. The second columnar portion extends through the insulating layer and through the second stacked portion in the stacking direction, and includes a second semiconductor body contacting the first semiconductor region. The first insulating portion divides the first semiconductor region in the first direction. The first insulating portion is provided under a boundary portion between the first stacked portion and the second stacked portion.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 19, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Masatoshi Watarai, Masanori Hatakeyama, Takuya Kusaka, Kazunori Masuda, Masato Endo, Koichi Fukuda, Masato Sugawara
  • Publication number: 20180040565
    Abstract: According to one embodiment, the insulating layer is provided on the terrace portions. The plurality of contact portions extend through the insulating layer in the stacking direction and contact the terrace portions. The second columnar portion extends through the insulating layer and through the second stacked portion in the stacking direction, and includes a second semiconductor body contacting the first semiconductor region. The first insulating portion divides the first semiconductor region in the first direction. The first insulating portion is provided under a boundary portion between the first stacked portion and the second stacked portion.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Masatoshi WATARAI, Masanori HATAKEYAMA, Takuya KUSAKA, Kazunori MASUDA, Masato ENDO, Koichi FUKUDA, Masato SUGAWARA
  • Patent number: 8074756
    Abstract: A straddle-type rough-road running vehicle includes a vehicle body frame supporting front and rear wheels, an engine unit mounted to the vehicle body frame and including an engine body and a power transmission case, a straddle type driver's seat, an intake control unit for controlling an air/fuel ratio, and an air-cleaner case for supplying a clean air to the intake control unit. The intake control unit and the air-cleaner case are connected to each other, and the air-cleaner case is disposed above the power transmission case. An engine mounting portion is formed in a frame shape opened such that the engine unit is surrounded from a vertical direction and a longitudinal direction. The engine body, the power transmission case, the intake control unit, and the air-cleaner case are disposed in an arrangement offset from the engine mounting portion in a side view.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: December 13, 2011
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Takuya Kusaka, Yuzo Hioki
  • Patent number: 7475748
    Abstract: An all terrain vehicle has a rear structure in which a exhaust duct extends rearward from a rear portion of a belt transmission and is detachably supported by a vehicle body frame, the exhaust duct is composed of a plurality of constituent members coupled to one another along an exhaust direction of the exhaust air flowing in the exhaust duct, the constituent members having a distance from one another are formed from a high rigidity material maintaining its own shape thereof, and the constituent members are detachably coupled to one another through a coupling member formed of an elastic material.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: January 13, 2009
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Eiichi Nakamura, Takuya Kusaka, Tetsuharu Nojiri
  • Publication number: 20090009299
    Abstract: An information synchronizing system includes a wireless communication terminal including a first information storage device having a first wireless communication range and a second information storage device having a second wireless communication range, the second wireless communication range being larger than the first wireless communication range; a read/write device that reads information from and writes information to the first information storage device; a wireless communication base station capable of performing wireless communication with the wireless communication terminal; and a synchronization controlling device that writes information stored in the first information storage device, the information being read using the read/write device, to the second information storage device via the wireless communication base station and the wireless communication terminal.
    Type: Application
    Filed: February 20, 2007
    Publication date: January 8, 2009
    Inventors: Hideo Ikeda, Takuya Kusaka, Naoki Tamura, Chitaka Manabe, Hidenori Sakai, Yuichi Iwasa
  • Publication number: 20080289892
    Abstract: A straddle-type rough-road running vehicle includes a vehicle body frame supporting front and rear wheels, an engine unit mounted to the vehicle body frame and including an engine body and a power transmission case, a straddle type driver's seat, an intake control unit for controlling an air/fuel ratio, and an air-cleaner case for supplying a clean air to the intake control unit. The intake control unit and the air-cleaner case are connected to each other, and the air-cleaner case is disposed above the power transmission case. An engine mounting portion is formed in a frame shape opened such that the engine unit is surrounded from a vertical direction and a longitudinal direction. The engine body, the power transmission case, the intake control unit, and the air-cleaner case are disposed in an arrangement offset from the engine mounting portion in a side view.
    Type: Application
    Filed: July 30, 2007
    Publication date: November 27, 2008
    Applicant: SUZUKI KABUSHIKI KAISHA
    Inventors: Takuya KUSAKA, Yuzo Hioki
  • Patent number: 7347296
    Abstract: An all terrain vehicle for smoothly introducing an exhaust air from a radiator rearward and improving cooling performance for cooling respective members of the vehicle is provided with a front structure, in which a cooling fan is provided on a rear surface of the radiator so that a central portion of the cooling fan is offset from a center of the radiator toward a side opposite to a side on which the belt transmission is arranged, an exhaust pipe connected to a front portion of the cylinder assembly is provided to extend toward the side on which the belt transmission is arranged so that the exhaust pipe extends downward at a portion above the belt transmission, and the inlet duct is provided on the side on which the exhaust pipe is provided so as to vertically extend along the vehicle body frame provided vertically through a portion below the exhaust pipe.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: March 25, 2008
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Eiichi Nakamura, Takuya Kusaka
  • Patent number: 7177591
    Abstract: In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: February 13, 2007
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koyo Kegasa, Chitaka Manabe, Takuya Kusaka, Yuichiro Goto, Koji Inoue
  • Publication number: 20070004363
    Abstract: A high-frequency micro-strip line for transmitting a high-frequency wave for a wireless LAN system has a layered structure where, on a ground layer made of a conductive material, a dielectric layer made of a dielectric material and a signal line made of a conductive material are successively laid. The high-frequency micro-strip line further includes a patch antenna comprising a dielectric plate made of a dielectric material and a patch made of a conductive material, which are successively laid into a layered structure, the patch antenna being electrically connected to the signal line. A wireless-communication RF signal transmission device capable of being applied to such a line is also provided.
    Type: Application
    Filed: April 12, 2004
    Publication date: January 4, 2007
    Inventors: Takuya Kusaka, Masakatsu Maruyama, Chitaka Manabe, Yoshito Fukumoto, Naoki Tamura
  • Publication number: 20060182948
    Abstract: Disclosed is a resin coated metal sheet for use in electronic equipment components which can provide excellent microwave absorbability and workability by coating a magnetic coating film containing from 20 to 60 mass % of a magnetic powder at a thickness of 3 to 50 ?m on at least one surface of a metal sheet and, optionally, also has a favorable heat releasing property; a heat releasing property and a self-cooling property; scratch resistance and fingerprint resistance; and electrical conductivity, and which is particularly useful as a constituent material as a casing for electronic equipment.
    Type: Application
    Filed: July 5, 2004
    Publication date: August 17, 2006
    Applicant: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takeshi Watase, Yasuo Hirano, Takuya Kusaka
  • Publication number: 20060011401
    Abstract: An all terrain vehicle has a rear structure in which a exhaust duct extends rearward from a rear portion of a belt transmission and is detachably supported by a vehicle body frame, the exhaust duct is composed of a plurality of constituent members coupled to one another along an exhaust direction of the exhaust air flowing in the exhaust duct, the constituent members having a distance from one another are formed from a high rigidity material maintaining its own shape thereof, and the constituent members are detachably coupled to one another through a coupling member formed of an elastic material.
    Type: Application
    Filed: July 14, 2005
    Publication date: January 19, 2006
    Applicant: SUZUKI KABUSHIKI KAISHA
    Inventors: Eiichi Nakamura, Takuya Kusaka, Tetsuharu Nojiri
  • Publication number: 20060006010
    Abstract: An all terrain vehicle for smoothly introducing an exhaust air from a radiator rearward and improving cooling performance for cooling respective members of the vehicle is provided with a front structure, in which a cooling fan is provided on a rear surface of the radiator so that a central portion of the cooling fan is offset from a center of the radiator toward a side opposite to a side on which the belt transmission is arranged, an exhaust pipe connected to a front portion of the cylinder assembly is provided to extend toward the side on which the belt transmission is arranged so that the exhaust pipe extends downward at a portion above the belt transmission, and the inlet duct is provided on the side on which the exhaust pipe is provided so as to vertically extend along the vehicle body frame provided vertically through a portion below the exhaust pipe.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 12, 2006
    Applicant: SUZUKI KABUSHIKI KAISHA
    Inventors: Eiichi Nakamura, Takuya Kusaka
  • Patent number: 6830041
    Abstract: A breather device of a vehicle engine is arranged so as to shut off an engine intake system from heat of an engine exhaust system and to make effective use of dead space for location. The breather device includes a breather tank arranged independently between the engine intake system and the engine exhaust system on the rear side of a cylinder assembly of the engine above a crankcase thereof; and a plurality of breather pipes connecting the breather tank to the engine and the engine intake system.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: December 14, 2004
    Assignee: Suzuki Kabushiki Kaisha
    Inventor: Takuya Kusaka
  • Publication number: 20040131105
    Abstract: In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 8, 2004
    Applicant: Kobe Steel, Ltd.
    Inventors: Koyo Kegasa, Chitaka Manabe, Takuya Kusaka, Yuichiro Goto, Koji Inoue
  • Patent number: 6724804
    Abstract: In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: April 20, 2004
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koyo Kegasa, Chitaka Manabe, Takuya Kusaka, Yuichiro Goto, Koji Inoue