Patents by Inventor Daisuke Yoshizawa

Daisuke Yoshizawa 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: 20240123427
    Abstract: A method for producing core-shell porous silica particles including: a step of forming a shell precursor by continuously adding a silica source-containing liquid into an aqueous suspension containing non-porous silica particles, a cationic surfactant, a basic catalyst, and an alcohol under conditions that a pH of the reaction system is from 7 to 13 and a pH value change of the reaction system is 1.5/10 min to form a shell precursor on a surface of non-porous silica particles; and a step of forming a porous shell by removing the cationic surfactant from the shell precursor, to form a porous shell; wherein in the step of forming the shell precursor, when a specific surface area of the non-porous silica particles is Xm2/g, a used amount of the non-porous silica particles is Yg, and a used amount of the silica source is Zcm3, Z/(XY) being from 0.01 to 10.
    Type: Application
    Filed: February 10, 2022
    Publication date: April 18, 2024
    Applicants: TOHOKU UNIVERSITY, DAICEL CORPORATION
    Inventors: Daisuke NAGAO, Keishi SUGA, Chinatsu YOSHIZAWA, Hiroakira DEN
  • Patent number: 10476320
    Abstract: A power transmission device wirelessly transmits power to a power receiving device. The power transmission device includes: a power transmission circuit; a first power transmission coil that transmits the power by a first transmission method using an electric signal generated by the power transmission circuit; a second power transmission coil that transmits the power by a second transmission method using the electric signal; a first power transmission coil position moving unit that moves a position of the first power transmission coil in a direction perpendicular to a coil surface; and a control unit that controls the first power transmission coil position moving unit to move the first power transmission coil in a direction away from the power receiving device, in a case where the power transmission circuit generates the electric signal so as to transmit the power from the second power transmission coil.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: November 12, 2019
    Assignee: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Patent number: 10283478
    Abstract: To provide a pressure contact type semiconductor device stack which can uniformly pressurize pressure contact type semiconductor devices irrespective of presence or absence of a notch portion of the pressure contact type semiconductor device, and can prevent thermal destruction of the relevant pressure contact type semiconductor device.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: May 7, 2019
    Assignees: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Toshiba Energy Systems & Solutions Corporation
    Inventors: Kenichiro Omote, Ryo Nakajima, Makoto Mukunoki, Daisuke Yoshizawa, Yuta Ichikura, Naotaka Iio
  • Publication number: 20190123584
    Abstract: A power transmission device wirelessly transmits power to a power receiving device. The power transmission device includes: a power supply surface that allows the power receiving device to be placed thereon; a peripheral edge portion disposed so as to surround an outer periphery of the power receiving device placed on the power supply surface; a first power transmission coil disposed on a side opposite to the power supply surface to transmit the power by a first transmission method; and a second power transmission coil disposed in the peripheral edge portion to transmit the power by a second transmission method.
    Type: Application
    Filed: February 15, 2018
    Publication date: April 25, 2019
    Inventor: Daisuke Yoshizawa
  • Publication number: 20180269719
    Abstract: A power transmission device wirelessly transmits power to a power receiving device placed on a power supply surface. The power transmission device includes: a first power transmission coil that transmits the power by a first transmission method; and a second power transmission coil that is disposed on an outer peripheral side of the first power transmission coil and at a position closer to the power supply surface than the first power transmission coil, and that transmits the power by a second transmission method. A line perpendicular to a coil surface of the second power transmission coil intersects a central axis of the first power transmission coil on a side of the power supply surface at a predetermined angle.
    Type: Application
    Filed: February 15, 2018
    Publication date: September 20, 2018
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20180269720
    Abstract: A power transmission device wirelessly transmits power to a power receiving device. The power transmission device includes: a first power transmission coil that transmits the power by a first transmission method; a second power transmission coil that is disposed at a position at a predetermined distance or more away from the first power transmission coil transmits the power by a second transmission method; and a housing that includes a first wall portion and a second wall portion which face each other and can accommodate the power receiving device between the first and second wall portions. The first power transmission coil is disposed on a side of the first wall portion, the second power transmission coil is disposed on a side of the second wall portion, and the power is wirelessly transmitted from any one of the first power transmission coil and the second power transmission coil.
    Type: Application
    Filed: February 15, 2018
    Publication date: September 20, 2018
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20180248415
    Abstract: A power transmission device wirelessly transmits power to a power receiving device. The power transmission device includes: a power transmission circuit that generates an electric signal; a first power transmission coil that transmits the power by a first transmission method using the electric signal generated by the power transmission circuit; a second power transmission coil that transmits the power by a second transmission method using the electric signal generated by the power transmission circuit; a second power transmission coil position moving unit that moves a position of the second power transmission coil in a direction perpendicular to a coil surface; and a control unit that controls the second power transmission coil position moving unit to move the second power transmission coil, in a case where the power transmission circuit generates the electric signal so as to transmit the power from the second power transmission coil.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 30, 2018
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20180248416
    Abstract: A power transmission device wirelessly transmits power to a power receiving device. The power transmission device includes: a power transmission circuit; a first power transmission coil that transmits the power by a first transmission method using an electric signal generated by the power transmission circuit; a second power transmission coil that transmits the power by a second transmission method using the electric signal; a first power transmission coil position moving unit that moves a position of the first power transmission coil in a direction perpendicular to a coil surface; and a control unit that controls the first power transmission coil position moving unit to move the first power transmission coil in a direction away from the power receiving device, in a case where the power transmission circuit generates the electric signal so as to transmit the power from the second power transmission coil.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 30, 2018
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20180040581
    Abstract: To provide a pressure contact type semiconductor device stack which can uniformly pressurize pressure contact type semiconductor devices irrespective of presence or absence of a notch portion of the pressure contact type semiconductor device, and can prevent thermal destruction of the relevant pressure contact type semiconductor device.
    Type: Application
    Filed: October 18, 2017
    Publication date: February 8, 2018
    Applicants: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kenichiro OMOTE, Ryo NAKAJIMA, Makoto MUKUNOKI, Daisuke YOSHIZAWA, Yuta ICHIKURA, Naotaka IIO
  • Patent number: 9342937
    Abstract: A control system during fuel supply to a vehicle has a portable device configured to be carried by a user, and an in-vehicle device that is mounted on the vehicle to conduct wireless communication with the portable device. The portable device is configured to conduct wireless communication with a facility communicator that is installed in a fuel supply facility. The in-vehicle device includes a portable device authentication part that authenticates the portable device and a fuel supply lid controller that opens or unlocks a fuel supply lid of the vehicle. The portable device receives a fuel supply inquiry signal transmitted by the facility communicator when the facility communicator detects an operation performed by the user or existence of the user. The portable device transmits a fuel supply starting message signal and authentication information on the portable device to the in-vehicle device when receiving the inquiry signal from the facility communicator.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: May 17, 2016
    Assignee: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20150025746
    Abstract: A vehicle controller has a brake operation detector that detects operation of a brake of a vehicle, a contact detector that detects contact of hands with a steering part of the vehicle, an authentication unit that makes wireless communication with a portable device having authentication information and authenticates the portable device, and a controller that controls power supply of the vehicle and driving of a prime mover of the vehicle. If the portable device has been successfully authenticated, the operation of the brake has been detected, and contact of the hands with at least two locations of the steering part has been detected for a specified period or more, the controller performs control to start power supply to a predetermined load of the vehicle and start the prime mover.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20140215567
    Abstract: A communication system has a first communication device, and a second communication device conduct wireless communication with the first communication device. The first communication device has a first transmitter that transmits a signal to the second communication device, and a first transmission controller that controls the first transmitter. The second communication device has a first receiver that receives the signal from the first communication device, a first reception controller that controls the first receiver, a signal processor that processes the signal received by the first receiver, and a determination part that determines whether the signal received by the first receiver is a normal signal. When transmitting a predetermined first signal, the first transmission controller divides the first signal into a plurality of segments to change a transmission frequency of the first transmitter in units of segments.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 31, 2014
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventors: Daisuke Yoshizawa, Hirofumi Ohata, Yosuke Tomita
  • Publication number: 20140203907
    Abstract: A communication system has a first communication device, and a second communication device that conducts wireless communication with the first communication device. The first communication device has a first transmitter that transmits a signal to the second communication device, and a first transmission controller that controls the first transmitter. The second communication device has a first receiver that receives the signal from the first communication device, a measurement part that measures a reception intensity of the signal received by the first receiver, and a determination part that determines whether the signal received by the first receiver is a normal signal. The first transmission controller divides a predetermined portion of a predetermined signal into a plurality of portions when transmitting the predetermined signal.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventors: Hirofumi Ohata, Yosuke Tomita, Daisuke Yoshizawa, Takahiro Inaguma, Kenichi Kessoku, Shuji Yamashita
  • Patent number: 8675095
    Abstract: An image data processing system transfers image data, stored in an image file and corresponding to independent images, from a first device to a second device. The first device includes data output, image file generation, and transfer processing units. The second device includes a specification data generation unit. The data output unit outputs combined miniaturized image data. The combined miniaturized image data shows combined miniaturized images. The miniaturized images correspond to the independent images. Each miniaturized image has a smaller data volume than the independent image. The specification data generation unit generates transfer subject specification data from the combined miniaturized image data. The transfer subject specification data specifies data corresponding to a transfer subject independent image. The image file generation unit generates a transfer image file storing the transfer subject image data. The transfer processing unit transfers the transfer image file to the second device.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: March 18, 2014
    Assignee: Nikon Corporation
    Inventor: Daisuke Yoshizawa
  • Publication number: 20140055232
    Abstract: A control system during fuel supply to a vehicle has a portable device configured to be carried by a user, and an in-vehicle device that is mounted on the vehicle to conduct wireless communication with the portable device. The portable device is configured to conduct wireless communication with a facility communicator that is installed in a fuel supply facility. The in-vehicle device includes a portable device authentication part that authenticates the portable device and a fuel supply lid controller that opens or unlocks a fuel supply lid of the vehicle. The portable device receives a fuel supply inquiry signal transmitted by the facility communicator when the facility communicator detects an operation performed by the user or existence of the user. The portable device transmits a fuel supply starting message signal and authentication information on the portable device to the in-vehicle device when receiving the inquiry signal from the facility communicator.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Daisuke Yoshizawa
  • Publication number: 20110221912
    Abstract: An image data processing system transfers image data, stored in an image file and corresponding to independent images, from a first device to a second device. The first device includes data output, image file generation, and transfer processing units. The second device includes a specification data generation unit. The data output unit outputs combined miniaturized image data. The combined miniaturized image data shows combined miniaturized images. The miniaturized images correspond to the independent images. Each miniaturized image has a smaller data volume than the independent image. The specification data generation unit generates transfer subject specification data from the combined miniaturized image data. The transfer subject specification data specifies data corresponding to a transfer subject independent image. The image file generation unit generates a transfer image file storing the transfer subject image data. The transfer processing unit transfers the transfer image file to the second device.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: NIKON CORPORATION
    Inventor: Daisuke YOSHIZAWA
  • Publication number: 20090213246
    Abstract: A camera includes: an image-capturing unit that captures an image of a photographic subject created by a photographic lens, creates an image to be recorded when a release start command is issued, and creates a through image for composition confirmation before starting of the release; a body in which the image-capturing unit is disposed; a tilt angle detection unit that detects the tilt angle of the body about the optical axis of the photographic lens; a composite image creation unit that creates and outputs a composite image for display for displaying the through image and the image to be recorded in a single screen; and a display unit that displays the composite image for display. The composite image creation unit creates the composite image for display so that the photographic subject that appears in the image to be recorded is displayed upon the display unit as being approximately erect.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 27, 2009
    Applicant: NIKON CORPORATION
    Inventors: Katsuhisa Muramatsu, Bungo Fujii, Daisuke Yoshizawa, Tarou Funado, Mariko Yuza, Takafumi Sekiya, Takashi Fukazawa
  • Patent number: 4271617
    Abstract: A method of removing snow from ground surfaces, comprising discharging into a layer of snow lying on the ground in front of a travelling vehicle, high velocity water from a plurality of nozzles mounted on the front portion of the vehicle extending horizontally across the width of the vehicle, in a forward and downward direction at a pressure of not less than 40 kg./cm.sup.2 and at a rate of at least 30 liters/min.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: June 9, 1981
    Inventor: Daisuke Yoshizawa