Patents by Inventor TAKUMA ARAKI

TAKUMA ARAKI 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: 20240140090
    Abstract: A heating device includes a tube, a container, a heater, and heat medium. The tube through which liquid flows is spirally formed. The container has a cylindrical part whose axial direction is along a spiral direction of the tube and stores the tube. The heater is provided in the cylindrical part. The heat medium is in liquid form and fills the container.
    Type: Application
    Filed: November 1, 2023
    Publication date: May 2, 2024
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takuma ARAKI, Yuna NIIMI, Junichi FUKUOKA, Susumu HANANO, Noriaki FURUKAWA
  • Patent number: 11971633
    Abstract: An electrode structure includes: a plurality of pixel electrodes arranged separately from each other; and a plurality of dielectric layers laminated in a first direction with respect to the plurality of pixel electrodes, in which the plurality of dielectric layers includes: a first dielectric layer that spreads over the plurality of pixel electrodes in a direction intersecting with the first direction; and a second dielectric layer that includes dielectric material having a refractive index higher than that of the first dielectric layer, sandwiches the first dielectric layer together with the plurality of pixel electrodes, and has a slit at a position overlapping space between pixel electrodes adjacent when viewed from the first direction.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 30, 2024
    Assignees: SONY SEMICONDUCTOR SOLUTIONS CORPORATION, SONY GROUP CORPORATION
    Inventors: Takashi Sakairi, Tomoaki Honda, Tsuyoshi Okazaki, Keiichi Maeda, Chiho Araki, Katsunori Dai, Shunsuke Narui, Kunihiko Hikichi, Kouta Fukumoto, Toshiaki Okada, Takuma Matsuno, Yuu Kawaguchi, Yuuji Adachi, Koichi Amari, Hideki Kawaguchi, Seiya Haraguchi, Takayoshi Masaki, Takuya Fujino, Tadayuki Dofuku, Yosuke Takita, Kazuhiro Tamura, Atsushi Tanaka
  • Patent number: 11969662
    Abstract: There is provided a robot device including: a head portion coupled to a trunk; four leg portions on a front left, a front right, a rear left, and a rear right coupled to the trunk; a first indirect portion that tilts the head portion left and right; and a second joint portion that rotates, with respect to the trunk, one of the leg portions on the rear left and the rear right to a front side, and the other to a rear side. It is possible to faithfully reproduce the movement of the four-legged animal by providing the first joint portion and the second joint portion.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: April 30, 2024
    Assignee: SONY CORPORATION
    Inventors: Hidenori Ishibashi, Tomoo Mizukami, Takuma Araki, Masato Muraki, Tomoyuki Arai, Goushi Koike, Takayuki Ito, Kouta Katsumura, Yohei Watanabe, Muneyuki Horiguchi, Takashi Maeda, Satoshi Muto, Hideo Miyano
  • Patent number: 11964489
    Abstract: An inkjet recording apparatus includes a recording head including a plurality of nozzles for ejecting ink, a conveyor belt that has a plurality of apertures and conveys recording media one by one, a control unit, an ink receiver, and a pipe-shaped ink discharge flow path. The control unit controls drive of the recording head and the conveyor belt to perform flushing, in which the ink is ejected from the nozzle of the recording head to pass through one of the apertures, at a timing different from a timing contributing to image recording. The ink receiver is disposed to face the recording head sandwiching the conveyor belt therebetween, to receive the ink after passing through the aperture when the flushing is performed. The ink discharge flow path is connected to the ink receiver. When the flushing is performed, a predetermined amount of liquid is stored in the ink receiver.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: April 23, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takashi Somete, Chikara Ishihara, Noriaki Furukawa, Takuma Araki, Jun Nakano, Hiroomi Nakatsuji, Issei Nakano
  • Patent number: 11934518
    Abstract: A verification apparatus acquires a source code for multiparty computation, while changing a combination of options settable to a multiparty computation compiler, compiles the source code for each combination of options to generate a plurality of multiparty computation executable codes, selects at least one multiparty computation executable code from the plurality of multiparty computation executable codes as a verification code and provides the at least one verification code to a verification environment of multiparty computation, generates an evaluation index with respect to an execution result of at least one verification code in the verification environment, and selects at least one recommended code from the plurality of multiparty computation executable codes, based on the evaluation index corresponding to at least one verification code and outputs the selected recommended code.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 19, 2024
    Assignee: NEC CORPORATION
    Inventors: Hikaru Tsuchida, Takao Takenouchi, Toshinori Araki, Kazuma Ohara, Takuma Amada
  • Publication number: 20240001677
    Abstract: An image forming apparatus includes a recording head, a wiper and a head mounting member. The recording head is provided with a nozzle area where a number of ink ejection ports are opened downward. The wiper is configured to move in a wiping direction while coming into contact with the nozzle area to wipe the nozzle area. The head mounting member is provided on a side surface of the recording head in the wiping direction. The surface of the head mounting member has water repellency higher than the side surface of the recording head. A recess portion and a protrusion are alternatively provided in a lower end portion of the head mounting member.
    Type: Application
    Filed: May 30, 2023
    Publication date: January 4, 2024
    Applicants: KYOCERA Document Solutions Inc., KYOCERA Corporation
    Inventors: Yasutaka INUI, Naoto MIYAKOSHI, Issei NAKANO, Takuma ARAKI, Yuuji MIZUTANI, Takashi MIYAHARA, Misaki NOMOTO
  • Publication number: 20230311534
    Abstract: A sub-tank is disposed in a flow path from a main tank to a recording head. The sub-tank includes a tank main body, a level sensor and a flow restricting part. In the tank main body, ink replenished from the main tank is contained. The level sensor detects a liquid level of the ink in the tank main body. The flow restricting part restricts flowing of the ink in an upper-and-lower direction in the tank main body. The flow path is connected to the tank main body at a position below the flow restricting part. The flow restricting part is disposed at a position below a lower limit level of the liquid level.
    Type: Application
    Filed: March 28, 2023
    Publication date: October 5, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masanobu MAESHIMA, Noriaki FURUKAWA, Takuma ARAKI
  • Publication number: 20230302815
    Abstract: Provided is an ink-replacement method for an inkjet recording apparatus that includes a recording head having an ink ejection surface on which a plurality of nozzles for ejecting ink onto a recording medium is arranged, a sub-tank for temporarily retaining the ink supplied from an ink container, and an ink flow path along which the ink circulates from and to the sub-tank by passing through the recording head. In replacing a first ink present in the ink flow path with a second ink to be newly supplied to the recording head via the ink flow path, when the second ink is caused to flow from the sub-tank into the ink flow path, pulsation is generated in the ink flow path.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 28, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Noriaki FURUKAWA, Takashi SOMETE, Takuma ARAKI
  • Patent number: 11758814
    Abstract: An object of the present invention is to provide a stable thermoelectric battery. The object can be solved by a thermoelectric battery comprising a working electrode containing a n-type silicon and germanium, a counter electrode, and a solid electrolyte having a polymer having a specific repeating unit with a molecular weight of 200 to 1,000,000, or a derivative thereof, wherein the solid electrolyte contains copper ions or iron ions as an ion source.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 12, 2023
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, SANOH INDUSTRIAL CO., LTD.
    Inventors: Sachiko Matsushita, Takuma Araki, Biao Mei, Junya Nishiyama
  • Patent number: 11715962
    Abstract: To reliably connect a device to be charged such as a robot and a charging device. There is provided a charging device including a charging stand having a charging terminal to be connected to a device to be charged and an engaging portion that performs positioning with the device to be charged, and a support member that supports the charging stand movably in the horizontal direction. With this configuration, the charging stand can be moved in the horizontal direction. Therefore, it is possible to reliably connect the device to be charged such as a robot and the charging device.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 1, 2023
    Assignee: SONY CORPORATION
    Inventors: Naoto Mori, Daisuke Morizono, Noriaki Takagi, Myungjin Jung, Chikashi Yajima, Hidenori Ishibashi, Takuma Araki
  • Publication number: 20230115621
    Abstract: A wiping device includes a wiping member and a moving part. The wiping member wipes a liquid off a nozzle surface of a recording head. The moving part moves the wiping member along the nozzle surface in a predetermined moving direction. The wiping member performs a first wiping operation in which the wiping member is moved while not coming into contact with the nozzle surface but coming into contact with the liquid adhering to the nozzle surface, and a second wiping operation in which the wiping member is moved while coming into contact with the nozzle surface after the first wiping operation.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 13, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Issei NAKANO, Takuma ARAKI
  • Patent number: 11554588
    Abstract: The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The suction unit is configured to suck the sheet to the conveyance belt. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A depth of the recessed portion in a facing region facing the head end portion of the conveyance plate is shallower than a depth of the recessed portion in a region other than the facing region.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 17, 2023
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hiroyuki Ueda, Chikara Ishihara, Takashi Somete, Issei Nakano, Jun Nakano, Hiroomi Nakatsuji, Aiichiro Otana, Takuma Araki, Noriaki Furukawa, Yasutaka Inui
  • Patent number: 11554587
    Abstract: The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The suction unit causes the conveyance belt to suck the sheet. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A ratio of the recessed portions per unit area in a facing region of the conveyance plate facing the head end portion is smaller than a ratio of the recessed portions per unit area in a region other than the facing region.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 17, 2023
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hiroyuki Ueda, Chikara Ishihara, Takashi Somete, Issei Nakano, Jun Nakano, Hiroomi Nakatsuji, Aiichiro Otana, Takuma Araki, Noriaki Furukawa, Yasutaka Inui
  • Publication number: 20220305791
    Abstract: An inkjet recording apparatus includes a recording head including a plurality of nozzles for ejecting ink, a conveyor belt that has a plurality of apertures and conveys recording media one by one, a control unit, an ink receiver, and a pipe-shaped ink discharge flow path. The control unit controls drive of the recording head and the conveyor belt to perform flushing, in which the ink is ejected from the nozzle of the recording head to pass through one of the apertures, at a timing different from a timing contributing to image recording. The ink receiver is disposed to face the recording head sandwiching the conveyor belt therebetween, to receive the ink after passing through the aperture when the flushing is performed. The ink discharge flow path is connected to the ink receiver. When the flushing is performed, a predetermined amount of liquid is stored in the ink receiver.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 29, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takashi SOMETE, Chikara ISHIHARA, Noriaki FURUKAWA, Takuma ARAKI, Jun NAKANO, Hiroomi NAKATSUJI, Issei NAKANO
  • Patent number: 11396184
    Abstract: An ink jet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, and a controller. The recording head includes an ink ejection surface having an ink ejection port from which ink is ejected. The cleaning liquid supply device includes a cleaning liquid supply surface having a cleaning liquid supply port from which cleaning liquid for wiping the ink ejection surface with the wiper member is supplied, and is located upstream of the ink ejection surface in a wiping direction. The controller controls a cleaning operation including squeezing out the cleaning liquid containing bubbles from the cleaning liquid supply port, and moving the wiper member carrying the cleaning liquid containing bubbles, in the wiping direction from a movement start position to an end position ahead of the ink ejection surface.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 26, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Issei Nakano, Takashi Somete, Chikara Ishihara, Hiroyuki Ueda, Hiroomi Nakatsuji, Noriaki Furukawa, Aiichiro Otana, Jun Nakano, Yasutaka Inui, Takuma Araki
  • Patent number: 11192377
    Abstract: Provided is a recording head recovery system, which includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and includes a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. A height position of a lower end part of the wiper when passing the cleaning liquid supply region is lower than a height position of the lower end part of the wiper when wiping the ink ejection region.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: December 7, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kenichi Satake, Yasutaka Inui, Takuma Araki
  • Patent number: 11161345
    Abstract: An inkjet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, a cleaning liquid flow path, and a controller. The cleaning liquid flow path includes a vertical tubular member connected to the cleaning liquid supply device and extending upward, and a horizontal tubular member connected to an upper end of the vertical tubular member and extending in a horizontal direction. The controller extrudes a cleaning liquid in at least a part of the cleaning liquid flow path from a cleaning liquid supply port before control of a cleaning operation for wiping an ink ejection surface of the recording head, thereby performing control of an air bubble release operation of the cleaning liquid flow path.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 2, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Noriaki Furukawa, Takashi Somete, Chikara Ishihara, Hiroyuki Ueda, Hiroomi Nakatsuji, Issei Nakano, Aiichiro Otana, Jun Nakano, Yasutaka Inui, Takuma Araki
  • Publication number: 20210300044
    Abstract: The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The suction unit causes the conveyance belt to suck the sheet. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A ratio of the recessed portions per unit area in a facing region of the conveyance plate facing the head end portion is smaller than a ratio of the recessed portions per unit area in a region other than the facing region.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 30, 2021
    Inventors: Hiroyuki UEDA, Chikara ISHIHARA, Takashi SOMETE, lssei NAKANO, Jun NAKANO, Hiroomi NAKATSUJI, Aiichiro OTANA, Takuma ARAKI, Noriaki FURUKAWA, Yasutaka INUI
  • Publication number: 20210300045
    Abstract: The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The suction unit is configured to suck the sheet to the conveyance belt. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A depth of the recessed portion in a facing region facing the head end portion of the conveyance plate is shallower than a depth of the recessed portion in a region other than the facing region.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 30, 2021
    Inventors: Hiroyuki UEDA, Chikara Ishihara, Takashi Somete, Issei Nakano, Jun Nakano, Hiroomi Nakatsuji, Aiichiro Otana, Takuma Araki, Noriaki Furukawa, Yasutaka Inui
  • Publication number: 20210296552
    Abstract: An object of the present invention is to provide a stable thermoelectric battery. The object can be solved by a thermoelectric battery comprising a working electrode containing a n-type silicon and germanium, a counter electrode, and a solid electrolyte having a polymer having a specific repeating unit with a molecular weight of 200 to 1,000,000, or a derivative thereof, wherein the solid electrolyte contains copper ions or iron ions as an ion source.
    Type: Application
    Filed: August 6, 2019
    Publication date: September 23, 2021
    Inventors: Sachiko MATSUSHITA, Takuma ARAKI, Biao MEI, Junya NISHIYAMA