Patents by Inventor Takashi Ishikawa

Takashi Ishikawa 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: 10825771
    Abstract: A semiconductor device includes a semiconductor substrate, an insulating film provided on the semiconductor substrate, a first element disposed at least in a lower layer portion of the insulating film, a second element disposed at least in the lower layer portion of the insulating film, and a hydrogen barrier member provided on the semiconductor substrate. The hydrogen barrier member is made from a material transmitting hydrogen less easily than does a material of the insulating film. The hydrogen barrier member and the semiconductor substrate surround the second element. The hydrogen barrier member does not surround the first element.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 3, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Nobuyuki Toda, Takeshi Yamamoto, Shinji Kawahara, Kazuaki Yamaura, Takashi Ishikawa
  • Patent number: 10819292
    Abstract: Ringing of a signal after passing through a low pass filter in an LINC type linear amplifier is remedied. A linear amplifying device includes the linear amplifier including the low pass filter for removing high-frequency components; and an origin avoiding circuit which receives an original input signal and is provided upstream of the linear amplifier. If the original input signal is sampled in the vicinity of an origin, the origin avoiding circuit modifies a sampled value so at to replace the sampled value with a fixed value, and supplies the modified input signal to the linear amplifier.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: October 27, 2020
    Assignee: NEC NETWORK AND SENSOR SYSTEMS, LTD
    Inventors: Yasutaka Kuroda, Noriaki Sumita, Takashi Ishikawa, Tomohiko Oohashi, Kazuki Kishi
  • Publication number: 20200312116
    Abstract: A management system includes, a sensor configured to detect biological information on a user, a communication unit capable of communicating with a terminal device and capable of receiving the biological information, a controller configured to detect whether the user is awake or gets out of the bed, based on the received biological information and activate an alarm to the terminal device, and a display configured to prioritize the alarm related to the user which has a high possibility of falling off the bed.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: Paramount Bed Co., Ltd.
    Inventor: Takashi ISHIKAWA
  • Publication number: 20200304213
    Abstract: The objective of the present invention is to reduce the size of a receiving device circuit in an optical space communication system while maintaining communication stability. A data receiving device which decodes one item of data from a plurality of input signals includes: two or more digital signal processing means for subjecting the plurality of input signals to signal processing; a first recording means for temporarily recording the plurality of input signals; a SN ratio estimating means for estimating S/N ratios of each of the plurality of input signals and determining the number of the plurality of input signals to be combined, and the signals to be combined; and a scheduling means for carrying out overall control on the basis of the results from the SN ratio estimating means.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 24, 2020
    Applicant: NEC Corporation
    Inventors: Kohei HOSOKAWA, Toshiharu ITO, Seigo TAKAHASHI, Manabu ARIKAWA, Takashi ISHIKAWA, Yoshimasa ONO
  • Patent number: 10759768
    Abstract: The present invention provides a prophylactic or therapeutic agent for an autism spectrum disorder containing compound (I) having melatonin receptor affinity. A compound represented by the formula: wherein each symbol is as described in the specification, or a salt thereof.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 1, 2020
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Keisuke Hirai, Takashi Ishikawa
  • Patent number: 10733867
    Abstract: A management system includes, a sensor configured to detect biological information on a user, a communication unit capable of communicating with a terminal device and capable of receiving the biological information, a controller configured to detect whether the user is awake or gets out of the bed, based on the received biological information and activate an alarm to the terminal device, and a display configured to prioritize the alarm related to the user which has a high possibility of falling off the bed.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: August 4, 2020
    Assignee: PARAMOUNT BED CO., LTD.
    Inventor: Takashi Ishikawa
  • Publication number: 20200211840
    Abstract: A method for producing a three-dimensional structure, a method for producing a vertical transistor, a vertical transistor wafer, and a vertical transistor substrate, capable of suppressing the emission of Si due to a heat treatment and making an interface between an oxide film and a core mainly consisting of Si relatively smooth include: forming a three-dimensional shape by processing (for example, by etching) a surface layer of a monocrystalline silicon substrate, the surface layer having an oxygen concentration of 1×1017 atoms/cm3 or more; and then forming an oxide film on the surface of the three-dimensional shape by performing a heat treatment. The three-dimensional structure has a shape having projections and recesses in a thickness direction of the silicon substrate, and a height in the thickness direction of the silicon substrate is between 1 nm and 1000 nm, and preferably between 1 nm and 100 nm.
    Type: Application
    Filed: July 17, 2018
    Publication date: July 2, 2020
    Applicants: GlobalWafers Japan Co., Ltd., TOHOKU UNIVERSITY
    Inventors: Kazutaka KAMIJO, Etsuo FUKUDA, Takashi ISHIKAWA, Koji IZUNOME, Moriya MIYASHITA, Takao SAKAMOTO, Tetsuo ENDOH
  • Publication number: 20200160687
    Abstract: A management system includes, a sensor configured to detect biological information on a user, a communication unit capable of communicating with a terminal device and capable of receiving the biological information, a controller configured to detect whether the user is awake or gets out of the bed, based on the received biological information and activate an alarm to the terminal device, and a display configured to prioritize the alarm related to the user which has a high possibility of falling off the bed.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Applicant: Paramount Bed Co., Ltd.
    Inventor: Takashi ISHIKAWA
  • Publication number: 20200101812
    Abstract: A vehicle air conditioner includes an outlet and an inlet. The outlet is provided on a side surface of a center console that is located, in the vehicle width direction, on the inner side of a seat, in which an occupant of the vehicle is seated. The outlet blows out air toward the occupant. The inlet is provided on a side surface of a door trim, which is located on the outer side of the seat in the vehicle width direction, and draws in air that has been blown out from the outlet.
    Type: Application
    Filed: August 15, 2019
    Publication date: April 2, 2020
    Inventors: Nobuhiro TERAI, Chiharu TOTANI, Yasuhiro MARUTA, Hisashi TAKAYA, Takashi ISHIKAWA
  • Patent number: 10586438
    Abstract: A management system includes, a sensor configured to detect biological information on a user, a communication unit capable of communicating with a terminal device and capable of receiving the biological information, a controller configured to detect whether the user is awake or gets out of the bed, based on the received biological information and activate an alarm to the terminal device, and a display configured to prioritize the alarm related to the user which has a high possibility of falling off the bed.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 10, 2020
    Assignee: PARAMOUNT BED CO., LTD.
    Inventor: Takashi Ishikawa
  • Patent number: 10511409
    Abstract: An appropriate synthesized signal cannot be obtained by only correcting relative phase errors of a plurality of received signals; therefore, a received signal processor according to an exemplary aspect of the present invention includes a plurality of signal-to-noise ratio estimation means for estimating respective signal-to-noise ratios of a plurality of digital signal sequences in which relative phase errors of a plurality of received signal sequences having been corrected; a plurality of temporary decision means for performing symbol decisions of the plurality of digital signal sequences and outputting symbol signal sequences; symbol-map-rotation determination means for determining respective phase rotation amounts of the plurality of digital signal sequences from the plurality of symbol signal sequences and the respective signal-to-noise ratios of the plurality of digital signal sequences; and a plurality of phase rotation means for rotating phases of the plurality of digital signal sequences respectively
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 17, 2019
    Assignee: NEC CORPORATION
    Inventors: Kohei Hosokawa, Toshiharu Ito, Manabu Arikawa, Seigo Takahashi, Takashi Ishikawa, Yoshimasa Ono
  • Patent number: 10454577
    Abstract: It is difficult in a free space optical transmitter to transmit a beacon beam stably at low cost, and that it is impossible to maintain stable tracking; therefore, a free space optical transmitter according to an exemplary aspect of the present invention includes a laser beam transmitting means for transmitting a plurality of laser beams capable of interfering with each other and differing in one of an optical frequency and a time variation in a phase difference; and a wavefront control beam transmitting means for transmitting, to a free space, a plurality of wavefront control beams obtained by making each of the plurality of laser beams have a different wavefront.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 22, 2019
    Assignee: NEC CORPORATION
    Inventors: Seigo Takahashi, Toshiharu Ito, Kohei Hosokawa, Manabu Arikawa, Yoshimasa Ono, Takashi Ishikawa
  • Publication number: 20190287917
    Abstract: A semiconductor device includes a semiconductor substrate, an insulating film provided on the semiconductor substrate, a first element disposed at least in a lower layer portion of the insulating film, a second element disposed at least in the lower layer portion of the insulating film, and a hydrogen barrier member provided on the semiconductor substrate. The hydrogen barrier member is made from a material transmitting hydrogen less easily than does a material of the insulating film. The hydrogen barrier member and the semiconductor substrate surround the second element. The hydrogen barrier member does not surround the first element.
    Type: Application
    Filed: September 7, 2018
    Publication date: September 19, 2019
    Inventors: Nobuyuki Toda, Takeshi Yamamoto, Shinji Kawahara, Kazuaki Yamaura, Takashi Ishikawa
  • Publication number: 20190280653
    Abstract: Ringing of a signal after passing through a low pass filter in an LINC type linear amplifier is remedied. A linear amplifying device includes the linear amplifier including the low pass filter for removing high-frequency components; and an origin avoiding circuit which receives an original input signal and is provided upstream of the linear amplifier. If the original input signal is sampled in the vicinity of an origin, the origin avoiding circuit modifies a sampled value so at to replace the sampled value with a fixed value, and supplies the modified input signal to the linear amplifier.
    Type: Application
    Filed: May 29, 2017
    Publication date: September 12, 2019
    Applicant: NEC Network and Sensor Systems, Ltd.
    Inventors: Yasutaka KURODA, Noriaki SUMITA, Takashi ISHIKAWA, Tomohiko OOHASHI, Kazuki KISHI
  • Patent number: 10382685
    Abstract: A drive device includes a drive controller. The drive controller controls a drive signal on which a high-frequency drive signal is superimposed on a drive current to drive a movable frame and which is to be applied to a drive coil. The drive controller drives the movable frame to a predetermined position based on a detection signal detected by a detector and a high-frequency signal of a predetermined frequency band including a frequency of the high-frequency drive signal that is generated in a detection coil when the drive signal is applied to the drive coil.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: August 13, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Takashi Ishikawa
  • Patent number: 10313590
    Abstract: A drive device includes a noise signal calculation unit, a signal correction unit, and a drive controller. The noise signal calculation unit calculates a noise signal corresponding to a magnetic flux generated from a current flowing through a drive coil. The signal correction unit corrects a detection signal detected by a detector based on the noise signal. The drive controller controls a drive signal to be applied to the drive coil based on a corrected signal obtained by the signal correction unit. The noise signal calculation unit acquires an amplitude of a predetermined frequency band including a frequency of a high-frequency drive signal, and calculates the noise signal included in the detection signal based on the acquired amplitude.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 4, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Takashi Ishikawa
  • Publication number: 20190164403
    Abstract: A management system includes, a sensor configured to detect biological information on a user, a communication unit capable of communicating with a terminal device and capable of receiving the biological information, a controller configured to detect whether the user is awake or gets out of the bed, based on the received biological information and activate an alarm to the terminal device, and a display configured to prioritize the alarm related to the user which has a high possibility of falling off the bed.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 30, 2019
    Applicant: Paramount Bed Co., Ltd.
    Inventor: Takashi ISHIKAWA
  • Publication number: 20190147124
    Abstract: An operation model generator includes one or more memories, and one or more processors configured to perform acquisition of signal information indicating signal values of an input signal and an output signal in a first register transfer level operation model of a logic circuit, and generate a hardware description language operation model of the logic circuit in accordance with the acquired signal information.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Akitsugu NAKAYAMA, Takashi Ishikawa, Koichi Shirakawa, Noritoshi Yamakawa
  • Publication number: 20190040022
    Abstract: The present invention provides a prophylactic or therapeutic agent for an autism spectrum disorder containing compound (I) having melatonin receptor affinity. A compound represented by the formula: wherein each symbol is as described in the specification, or a salt thereof.
    Type: Application
    Filed: January 5, 2017
    Publication date: February 7, 2019
    Inventors: Keisuke HIRAI, Takashi ISHIKAWA
  • Patent number: 10185214
    Abstract: The present invention provides a projector with high brightness, the projector including: a first light source that outputs a first light containing a first fluorescence generated in a first fluorescence region; a second light source that outputs a second light containing a second fluorescence generated in a second fluorescence region; first to third image display elements; a light separation optical system that generates an illumination light illuminating the first to third image display elements with colors different from each other from the input first light and second light and radiates the illumination light to the first to third image display elements; and a controller that causes the first to third image display elements to display an image according to an input video signal and colors of the illumination light radiated to the first to third image display elements.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 22, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Takashi Ishikawa