Patents by Inventor Daisuke Ishikawa

Daisuke 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).

  • Publication number: 20240153730
    Abstract: An emitter includes an insulator, a pair of terminals attached to the insulator separately from each other, at least one filament attached between the pair of terminals in an arch shape, and an electron source fixed to the filament. The filament has bent portions between a contact with respect to the electron source and contacts with respect to the terminals. A device is provided with the emitter.
    Type: Application
    Filed: March 9, 2022
    Publication date: May 9, 2024
    Applicant: Denka Company Limited
    Inventor: Daisuke ISHIKAWA
  • Patent number: 11964253
    Abstract: Provided is a production method for core-shell porous silica particles, the production method including: a preparation step of preparing an aqueous solution comprising non-porous silica particles, a cationic surfactant, a basic catalyst, an electrolyte, and an alcohol; a shell precursor formation step at adding a silica source to the aqueous solution to form a shell precursor on a surface of the non-porous silica particles; and a shell formation step of removing the cationic surfactant from the shell precursor to form a porous shell.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 23, 2024
    Assignees: TOHOKU UNIVERSITY, DAICEL CORPORATION
    Inventors: Daisuke Nagao, Haruyuki Ishii, Shunho Ishikawa
  • Publication number: 20240070947
    Abstract: Provided is an information processing apparatus, and an information processing method in which data of content is acquired, and a first visual field image corresponding to a visual field of a first user is cut out from a content image based on the data of the content. In addition, visual field information representing a visual field of a second user viewing the content image is acquired. Furthermore, in a display apparatus, the first visual field image is displayed, and the visual field of the second user is displayed based on the visual field information of the second user.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 29, 2024
    Inventors: Tsuyoshi ISHIKAWA, Kei TAKAHASHI, Daisuke SASAKI
  • Patent number: 11915921
    Abstract: An electron source according to the present disclosure includes a columnar portion made of a first material having an electron emission characteristic; and a tubular portion that is disposed to surround the columnar portion and made of a second material having a higher work function than the first material, wherein a hole that extends in a direction from one end face toward the other end face and has a substantially circular cross-sectional shape is formed in the tubular portion, and the columnar portion has a substantially triangular or substantially quadrangular cross-sectional shape and is fixed to the tubular portion in an abutting engagement with an inner surface of the hole.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: February 27, 2024
    Assignee: Denka Company Limited
    Inventors: Dai Tsukada, Hiromitsu Chatani, Daisuke Ishikawa
  • Patent number: 11904622
    Abstract: According to one embodiment, a position determination unit of a printing system determines a printing position of printing information printed on an object to be printed conveyed by a conveyance machine. An erasing unit erases the printing information printed using thermochromic ink by emitting heat from a heat source, a height position of which is adjusted according to the printing position, from a direction perpendicular to a conveyance direction according to a timing at which the printing position, determined based on the printing position, passes. A printing unit includes a printer using the thermochromic ink, disposed behind the heat source along the conveyance direction, and prints information on the object to be printed from the direction perpendicular to the conveyance direction by the printer, a height position of which is adjusted according to the printing position, according to the timing at which the printing position passes.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: February 20, 2024
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Daisuke Ishikawa, Taishi Fukazawa
  • Patent number: 11850871
    Abstract: According to one embodiment, a mobile printer includes a first housing, a second housing, a hinge, and a print head. The first housing has a first surface on which a printing medium can be disposed. The second housing faces the first surface. The hinge connects the first housing and the second housing and permits the first and second housings to rotate relative to each other. The print head is provided in the second housing and is configured to print an image by discharging on to the print medium when the print medium is on the first surface between the first and second housings.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: December 26, 2023
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Daisuke Ishikawa, Taishi Fukazawa, Hiroshi Kiyomoto, Maiko Miyoshi, Yui Hiyoshi, Takaya Kitawaki, Seiya Shimizu
  • Publication number: 20230388637
    Abstract: An image capturing apparatus that communicates with an information processing apparatus that performs processing of combining an image of a real space and an image of a virtual space, the image capturing apparatus includes an imaging unit configured to capture an image of a subject formed by an imaging optical system, a determination unit configured to determine at least one mode among a plurality of modes related to a viewing angle of the image capturing apparatus, a generation unit configured to generate camera data including a first parameter indicating the mode determined by the determination unit and a second parameter corresponding to a lens position of the imaging optical system, and a transmission unit configured to transmit camera setting information including the camera data to the information processing apparatus, wherein the first parameter and the second parameter are used to identify the viewing angle of the image capturing apparatus.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 30, 2023
    Inventor: DAISUKE ISHIKAWA
  • Publication number: 20230317395
    Abstract: A method for manufacturing an electron source according to the present disclosure includes steps of: (A) preparing a first member provided with a columnar portion made of a first material having an electron emission characteristic, (B) preparing a second member which has a higher work function and a lower strength than the first material, and in which a hole is formed extending in a direction from one end surface toward the other end surface, and (C) pushing the columnar portion into the hole in the second member, wherein the first member has a cross-sectional shape that is dissimilar to the cross-sectional shape of the hole; and in the step (C), by pressing the columnar portion into the hole, a portion of a side surface of the columnar portion scrapes the inner surface of the hole and bites into the second member, thereby fixing the columnar portion to the second member.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 5, 2023
    Applicant: Denka Company Limited
    Inventors: Daisuke ISHIKAWA, Hiromitsu CHATANI
  • Publication number: 20230302821
    Abstract: According to one embodiment, a control unit of a printing system determines a printing region on an object to be printed being conveyed by a conveyance machine, the printing region being provided to be printed any write information therein as printing information, determines whether or not the printing information having a specified character size can be printed in the printing region, and performs adjustment of a printing format of the printing information, the adjustment including at least changing the character size, so that the printing information can be printed in the printing region when determining that the printing information cannot be printed in the printing region. A printing unit prints the printing information having the adjusted printing format in the printing region of the object to be printed according to a timing at which the printing region of the object to be printed being conveyed by the conveyance machine passes through the printing unit.
    Type: Application
    Filed: October 25, 2022
    Publication date: September 28, 2023
    Inventor: Daisuke Ishikawa
  • Publication number: 20230298846
    Abstract: An emitter according to the present disclosure includes: first and second heaters generating heat by energization; an electron source comprising a first material emitting an electron by being heated by the first and second heaters; and an intermediate member interposed between the electron source, and the first and second heaters, the intermediate member comprising a second material lower in thermal conductivity than the first material.
    Type: Application
    Filed: August 5, 2021
    Publication date: September 21, 2023
    Applicant: Denka Company Limited
    Inventors: Daisuke ISHIKAWA, Hiromitsu CHATANI
  • Patent number: 11728503
    Abstract: A fuel cell module includes a fuel cell stack, a plurality of accessories, a plurality of maintenance components, and a frame. The frame has a three-dimensional structure having an internal space. The fuel cell stack and the accessories are fixed to the frame in a state where they are accommodated in the internal space. In a plan view of the fuel cell module, the maintenance components are fixed to the frame in a state where the maintenance components are placed in an external space formed on one side from the frame from among external spaces formed outside the internal space.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: August 15, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Ishikawa, Hiroaki Nishiumi
  • Publication number: 20230238561
    Abstract: A fuel cell module includes a fuel cell stack, and a container that has a frame structure in which a polyhedron is composed of a plurality of main beams, and houses the fuel cell stack. The container has a vertical length and a horizontal length different from each other in side view. At least one main beam among the main beams includes a plurality of fastening points that are arranged along a longitudinal direction of the at least one main beam.
    Type: Application
    Filed: November 16, 2022
    Publication date: July 27, 2023
    Inventors: Daisuke ISHIKAWA, Shuji KAWAMURA
  • Publication number: 20230215679
    Abstract: An electron source according to the present disclosure includes a columnar portion made of a first material having an electron emission characteristic; and a tubular portion that is disposed to surround the columnar portion and made of a second material having a higher work function than the first material, wherein a hole that extends in a direction from one end face toward the other end face and has a substantially circular cross-sectional shape is formed in the tubular portion, and the columnar portion has a substantially triangular or substantially quadrangular cross-sectional shape and is fixed to the tubular portion in an abutting engagement with an inner surface of the hole.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 6, 2023
    Applicant: Denka Company Limited
    Inventors: Dai TSUKADA, Hiromitsu CHATANI, Daisuke ISHIKAWA
  • Publication number: 20230073339
    Abstract: According to one embodiment, a position determination unit of a printing system determines a printing position of printing information printed on an object to be printed conveyed by a conveyance machine. An erasing unit erases the printing information printed using thermochromic ink by emitting heat from a heat source, a height position of which is adjusted according to the printing position, from a direction perpendicular to a conveyance direction according to a timing at which the printing position, determined based on the printing position, passes. A printing unit includes a printer using the thermochromic ink, disposed behind the heat source along the conveyance direction, and prints information on the object to be printed from the direction perpendicular to the conveyance direction by the printer, a height position of which is adjusted according to the printing position, according to the timing at which the printing position passes.
    Type: Application
    Filed: August 10, 2022
    Publication date: March 9, 2023
    Inventors: Daisuke Ishikawa, Taishi Fukazawa
  • Publication number: 20220397803
    Abstract: An apparatus for an optical system including a first magnification varying lens configured to move with zooming, a second magnification varying lens of which a position is controlled based on a position of the first magnification varying lens, and a focus lens configured to adjust an in-focus position includes a detector configured to detect the position of the second magnification varying lens, and at least one processor and a memory coupled to the processor storing instructions that, when executed by the processor, cause the processor to function as a setting unit configured to set a driving range of the focus lens based on the position of the second magnification varying lens.
    Type: Application
    Filed: June 3, 2022
    Publication date: December 15, 2022
    Inventor: Daisuke Ishikawa
  • Patent number: 11504976
    Abstract: According to at least one embodiment, a mobile printer includes a casing, a sensor, a print head, an interface, a controller, and a decolorizing device. The casing includes a power supply. The sensor detects the movement of the casing. The print head discharges ink containing a thermochromic colorant. The interface acquires image data. The controller discharges the ink from the print head based on the image data acquired by the interface and the movement of the casing detected by the sensor. The decolorizing device is coupled to the casing and includes a translucent film in which heat is generated by an applied voltage and a translucent substrate that is heated to a temperature at which the thermochromic colorant is decolorized by the heat generated in the translucent film.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: November 22, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Daisuke Ishikawa, Kazuki Taira, Takaya Kitawaki, Daisuke Harayama
  • Patent number: 11482749
    Abstract: A stack frame is mounted with a battery stack, and is installed in a vehicle. The stack frame includes: a plurality of frame members arranged in a right-left direction of the vehicle; and a cross member extending in the right-left direction of the vehicle and joined to all end surfaces of the plurality of frame members. An end frame member located at least at one end in the right-left direction of the plurality of frame members, includes: an end surface covered region having an end surface covered with the cross member; and an end surface exposed region having an exposed end surface, and the end surface covered region is provided with more mounting holes used for mounting the battery stack than the end surface exposed region.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: October 25, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Daisuke Ishikawa
  • Patent number: 11462792
    Abstract: The disclosure provides a stack frame that is arranged in a front portion of a vehicle and on which a battery stack is mounted. The stack frame includes a body section and a crash box. The body section includes plural members that are welded to each other along a weld line. The weld line between the plural members extends in a front-back direction of the vehicle. The crash box is arranged on a front side of the body section. A lateral wall surface of the crash box is displaced from an extended line of the weld line.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Ishikawa
  • Publication number: 20220258498
    Abstract: According to one embodiment, a mobile printer, includes an RFID writer capable of writing information to an RFID tag, such as one embedded in a merchandise tag or price tag. The mobile printer additionally includes a print head storing decolorable ink that can be made substantially invisible or indistinguishable on a merchandise tag or price tag. The print head is configured to discharge decolorable ink for printing information on a merchandise tag or price tag. The decolorable ink can be discolored/decolored after being used to print information on a merchandise tag or price tag to permit information on the merchandise tag or price tag to be changed after an initial printing.
    Type: Application
    Filed: November 18, 2021
    Publication date: August 18, 2022
    Inventors: Yui HIYOSHI, Hiroshi KIYOMOTO, Maiko MIYOSHI, Taishi FUKAZAWA, Takaya KITAWAKI, Daisuke ISHIKAWA
  • Publication number: 20220254846
    Abstract: An organic electro luminescence display panel includes pixel electrodes, a plurality of elongated column banks, a missing portion at which part of the elongated column banks does not exist, a pair of repair banks formed, above the pixel electrodes, in each of two gaps between a column bank that has the missing portion and column banks adjacent on opposite sides in a row direction of the column bank, a light emitting layer composed of an application film formed in each of gaps between the plurality of column banks, and a common electrode provided above the light emitting layer.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 11, 2022
    Inventors: Yasuharu SHINOKAWA, Kazuhiro UMEZU, Daisuke ISHIKAWA, Yasuhiro KAWAKATSU