Patents by Inventor Takashi Ishiguro

Takashi Ishiguro 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: 11988857
    Abstract: An object is to provide an optical system capable of improving the brightness of a main image while eliminating a ghost image. In an optical system including: an image display device that emits an image; a linear polarizer through which light associated with the image passes; a first quarter wavelength plate which receives the light from the linear polarizer; a half mirror; a reflective polarizer; and a second quarter wavelength plate provided between the reflective polarizer and the half mirror, retardance of the first quarter wavelength plate and retardance of the second quarter wavelength plate are equal, and thus the object is achieved.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: May 21, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Yonemoto, Yukito Saitoh, Yohei Hamachi, Makoto Ishiguro
  • Patent number: 11977290
    Abstract: Provided are a liquid crystal diffraction element having a high diffraction efficiency irrespective of diffraction angles, an optical element including the liquid crystal diffraction element, and an image display unit, a head-mounted display, a beam steering, and a sensor including the liquid crystal diffraction element or the optical element.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: May 7, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Sato, Yukito Saitoh, Takashi Yonemoto, Makoto Ishiguro
  • Publication number: 20230418526
    Abstract: A display control device according to an embodiment includes a display control unit that controls display of a setup screen for performing setup for machining in a machine tool, the setup screen including (i) a menu display part displaying a plurality of setup items in a selectable manner and (ii) a detail display part displaying an operation for each of the setup items. In control of display of the setup screen, while the setup screen is displayed, display of the setup items on the menu display part is maintained and display of the operation screens is switched on the detail display part in response to an operation input by an operator.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 28, 2023
    Applicant: DMG MORI CO., LTD.
    Inventors: Takashi ISHIGURO, Masakazu TAKAYAMA, Toshinori OUCHI
  • Patent number: 11784665
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: October 10, 2023
    Assignee: Kioxia Corporation
    Inventors: Yasuyuki Imaizumi, Satoshi Shoji, Mitsunori Tadokoro, Takashi Ishiguro, Yifan Tang
  • Publication number: 20230054732
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 23, 2023
    Inventors: Yasuyuki IMAIZUMI, Satoshi SHOJI, Mitsunori TADOKORO, Takashi ISHIGURO, Yifan TANG
  • Patent number: 11520520
    Abstract: According to one embodiment, a controller receives from a host a first command for writing data sequentially to a first zone. When buffers include a first buffer to which the first zone is allocated, the controller stores the first data in the first buffer. When the buffers do not include the first buffer but include a free buffer, the controller allocates the first zone to a second buffer that is the free buffer and stores the first data in the second buffer. When the buffers include neither the first buffer nor a free buffer, the controller additionally allocates the first zone to a third buffer of which last update for storing data is the oldest among the buffers, and stores the first data in the third buffer to which the first zone is additionally allocated.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: December 6, 2022
    Assignee: Kioxia Corporation
    Inventor: Takashi Ishiguro
  • Patent number: 11515896
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: November 29, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Yasuyuki Imaizumi, Satoshi Shoji, Mitsunori Tadokoro, Takashi Ishiguro, Yifan Tang
  • Patent number: 11395600
    Abstract: In an exemplary embodiment, a vibration waveform sensor includes a pair of conductive pads 22, 23, and a piezoelectric element 30 whose terminal electrodes are connected thereto, which are provided on a board 20, and these are surrounded by a conductive ring-like spacer 40. On the interior side of the spacer 40, a cover part 44 substantially like a disk is provided in a manner covering over the pair of conductive pads 22, 23 and the piezoelectric element 30. The cover part 44 cuts off any humming noise from the top face of the piezoelectric element 30 over a continuous surface, which results in a reduction of humming noise.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: July 26, 2022
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Keiichi Kobayashi, Takashi Ishiguro
  • Publication number: 20220188020
    Abstract: According to one embodiment, a controller receives from a host a first command for writing data sequentially to a first zone. When buffers include a first buffer to which the first zone is allocated, the controller stores the first data in the first buffer. When the buffers do not include the first buffer but include a free buffer, the controller allocates the first zone to a second buffer that is the free buffer and stores the first data in the second buffer. When the buffers include neither the first buffer nor a free buffer, the controller additionally allocates the first zone to a third buffer of which last update for storing data is the oldest among the buffers, and stores the first data in the third buffer to which the first zone is additionally allocated.
    Type: Application
    Filed: September 3, 2021
    Publication date: June 16, 2022
    Applicant: Kioxia Corporation
    Inventor: Takashi ISHIGURO
  • Patent number: 11311764
    Abstract: An exercise assist device transitively moves a sacroiliac joint in a lateral decubitus position. The following description is provided in the context of a left lateral decubitus position. The upper right leg is placed on a stand in the lateral decubitus position, and the upper right leg is then extended transitively backward with a sacral area supported by a sacrum support pad. Since a posterior side of a lower left sacroiliac joint is slightly opened, a sacrum slides backward via a right hip joint. This improves mobility of the lower left sacroiliac joint.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 26, 2022
    Inventor: Takashi Ishiguro
  • Publication number: 20210344360
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Inventors: Yasuyuki IMAIZUMI, Satoshi SHOJI, Mitsunori TADOKORO, Takashi ISHIGURO, Yifan TANG
  • Patent number: 11101823
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: August 24, 2021
    Assignee: KIOXIA CORPORATION
    Inventors: Yasuyuki Imaizumi, Satoshi Shoji, Mitsunori Tadokoro, Takashi Ishiguro, Yifan Tang
  • Publication number: 20200371867
    Abstract: A memory system includes a non-volatile memory and a controller. The controller is configured to perform iterative correction on a plurality of frames of data read from the non-volatile memory. The iterative correction includes performing a first error correction on each of the frames including a first frame having errors not correctable by the first error correction, generating a syndrome on a set of second frames that include the first frame, performing a second error correction on the second frames using the syndrome, and performing a third error correction on the first frame. Each of the frames includes user data and first parity data used in the first error correction, the first parity data of the first frame also being used in the third error correction.
    Type: Application
    Filed: December 26, 2019
    Publication date: November 26, 2020
    Inventors: Yasuyuki IMAIZUMI, Satoshi SHOJI, Mitsunori TADOKORO, Takashi ISHIGURO, Yifan TANG
  • Patent number: 10842396
    Abstract: In an embodiment, a sensor module 10 includes a piezoelectric element 30 placed on the principal face of a board 20, which piezoelectric element is surrounded by a vibration ring 40 and installed in an appropriate position on a person's arm, neck, etc., using a medical fixing tape, etc., with the vibration ring 40 contacting the person's skin. When a pulse wave is transmitted to the vibration ring 40 from the skin, the board 20 also vibrates and this vibration is transmitted to the piezoelectric element 30. Then, the piezoelectric element 30 is displaced and the pulse wave vibration is converted to an electrical signal. The resulting electrical signal is amplified by an amplifier on the board 20 and input to the vibration analysis device 100, where prescribed calculations are run to perform waveform analysis. The vascular state, etc., can be known from pulse waveforms.
    Type: Grant
    Filed: April 9, 2016
    Date of Patent: November 24, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takashi Ishiguro, Keiichi Kobayashi, Yutaka Aoki
  • Publication number: 20200359929
    Abstract: Pulse waves and ballistocardiac waves propagate to a piezoelectric vibration sensor 110 attached to a seating surface 102 of a chair 100, and are output after being converted to electrical signals. Thereafter, the electrical signals are filtered by a low-pass digital filter 202P and a band-pass digital filter 202B, with the pulse waves GP output from the low-pass digital filters 202P and the ballistocardiac waves GB output from the band-pass digital filter 202B. These pulse waves GP and ballistocardiac waves GB are processed by absolute value circuits 212P, 212B and low-pass filters 214P, 214B of envelope-processing circuits 210P, 210B, to obtain envelopes. Then, pulse wave propagation velocity PWV is calculated based on the difference between the peaks of the obtained envelopes. The pulse waves/their velocity can be detected/obtained even when the piezoelectric vibration sensor is not attached directly to the human body.
    Type: Application
    Filed: January 19, 2019
    Publication date: November 19, 2020
    Inventors: Yuka MAEDA, Takashi ISHIGURO, Keiichi KOBAYASHI
  • Publication number: 20200029907
    Abstract: In an exemplary embodiment, a seating sensor 280 includes a sensor module 200 provided with a piezoelectric element 30 and attached to a seat 302 via a vibration transmission plate 210. When a user is seated on the seat 302, pulse wave vibrations due to blood flow of the user are transmitted through the seat 302 to its reverse face side, and then transmitted to the vibration transmission plate 210 and further transmitted, via a vibration ring 40, to the piezoelectric element 30 in the sensor module 200, whereupon a seating of the user on the seat 302 and/or the user's biological information are/is detected. The vibration transmission plate 210 allows the pulse wave vibrations from the user to be transmitted to the sensor module 200 even when the user does not sit on the seat 302 directly above the seating sensor 280.
    Type: Application
    Filed: March 12, 2018
    Publication date: January 30, 2020
    Inventors: Keiichi KOBAYASHI, Takashi ISHIGURO
  • Publication number: 20190299044
    Abstract: An exercise assist device transitively moves a sacroiliac joint in a lateral decubitus position. The following description is provided in the context of a left lateral decubitus position. The upper right leg is placed on a stand in the lateral decubitus position, and the upper right leg is then extended transitively backward with a sacral area supported by a sacrum support pad. Since a posterior side of a lower left sacroiliac joint is slightly opened, a sacrum slides backward via a right hip joint. This improves mobility of the lower left sacroiliac joint.
    Type: Application
    Filed: July 14, 2017
    Publication date: October 3, 2019
    Inventor: Takashi Ishiguro
  • Publication number: 20190133463
    Abstract: In an exemplary embodiment, a vibration waveform sensor includes a pair of conductive pads 22, 23, and a piezoelectric element 30 whose terminal electrodes are connected thereto, which are provided on a board 20, and these are surrounded by a conductive ring-like spacer 40. On the interior side of the spacer 40, a cover part 44 substantially like a disk is provided in a manner covering over the pair of conductive pads 22, 23 and the piezoelectric element 30. The cover part 44 cuts off any humming noise from the top face of the piezoelectric element 30 over a continuous surface, which results in a reduction of humming noise.
    Type: Application
    Filed: February 9, 2017
    Publication date: May 9, 2019
    Inventors: Keiichi KOBAYASHI, Takashi ISHIGURO
  • Patent number: 10152280
    Abstract: According to one embodiment, a storage device includes a processor which executes first processing, second processing and third processing. The second processing includes processing for relaying a command issued by a host device, and an execution result of the first processing corresponding to the command, between the host device and the first processing. The third processing includes processing for causing the second processing to transition from a first state to a second state of lower energy consumption than the first state, when a first period in which the second processing is in an idle state exceeds a second period. The third processing further includes processing for maintaining the first state under a first condition, when the first period exceeds the second period.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: December 11, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takashi Ishiguro, Hirokazu Morita
  • Publication number: 20180107432
    Abstract: According to one embodiment, a storage device includes a processor which executes first processing, second processing and third processing. The second processing includes processing for relaying a command issued by a host device, and an execution result of the first processing corresponding to the command, between the host device and the first processing. The third processing includes processing for causing the second processing to transition from a first state to a second state of lower energy consumption than the first state, when a first period in which the second processing is in an idle state exceeds a second period. The third processing further includes processing for maintaining the first state under a first condition, when the first period exceeds the second period.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 19, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takashi Ishiguro, Hirokazu Morita