Patents by Inventor Takahiro Yoshida

Takahiro Yoshida 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: 10696057
    Abstract: A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: June 30, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiko Kohda, Takahiro Yoshida, Shiomi Andou, Takayuki Nakai, Kanshi Abe, Takeshi Shimizu, Ryo Kasahara
  • Patent number: 10696046
    Abstract: A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, respectively, a supply-side common chamber communicating with each of the plurality of individual chambers, and a recovery-side common chamber communicating with each of the plurality of individual chambers. The supply-side common chamber and a part of the recovery-side common chamber are aligned in a longitudinal direction of the plurality of individual chambers orthogonal to a nozzle array direction along Which the plurality of nozzles is arrayed.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: June 30, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Koji Kawahara, Takahiro Yoshida
  • Patent number: 10668726
    Abstract: A liquid ejection head is provided. The liquid ejection head includes at least two nozzle lines configured to have a plurality of nozzles for ejecting liquid disposed in respective lines, a plurality of individual liquid chambers configured to be in communication with corresponding nozzles of the nozzle lines, and at least two circulation channels corresponding to the nozzle lines, configured to be in communication with the individual liquid chambers. The at least two circulation channels are in communication with each other through a bridging channel disposed in a direction intersecting with the nozzle line direction, and the bridging channel and the circulation channels are disposed at different positions in a thickness direction of a member which forms the bridging channel and the circulation channels.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: June 2, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takahiro Yoshida, Tomohiko Kohda, Takeshi Shimizu, Kanshi Abe, Ryo Kasahara, Takayuki Nakai, Shiomi Andou
  • Publication number: 20200164644
    Abstract: A liquid discharge head includes a plurality of nozzles from which a liquid is discharged in a gravity direction, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a common channel communicating with each of the plurality of pressure chambers, the common channel including a top surface and a bottom surface disposed below the top surface in the gravity direction, and a plurality of convex portions formed on the bottom surface of the common channel.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 28, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Ryohta YONETA, Takahiro YOSHIDA
  • Publication number: 20200147961
    Abstract: A liquid discharge head includes a plurality of nozzles from which a liquid is discharged, the plurality of nozzles arrayed in one direction, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, the plurality of pressure chambers arrayed in the one direction, a common supply channel communicating with each of the plurality of pressure chambers, a common collection channel communicating with each of the plurality of pressure chambers, and a damper disposed outside an array of the plurality of pressure chambers in the one direction, and configured to form an inner surface of at least one of the common supply channel and the common collection channel.
    Type: Application
    Filed: October 15, 2019
    Publication date: May 14, 2020
    Inventor: Takahiro YOSHIDA
  • Publication number: 20200094573
    Abstract: A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomohiko KOHDA, Takahiro YOSHIDA, Shiomi ANDOU, Takayuki NAKAI, Kanshi ABE, Takeshi SHIMIZU, Ryo KASAHARA
  • Publication number: 20200086652
    Abstract: An inkjet recording apparatus is provided. The inkjet recording apparatus includes a curable ink and a discharge head. The curable ink comprises a polymer having a polyester structural unit. The discharge head includes an individual liquid chamber including a circulation channel in which the curable ink is circulatable, and a nozzle from which the curable ink is dischargeable.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Masato IIO, Takahiro YOSHIDA
  • Publication number: 20200039383
    Abstract: The structure for mounting a seat rail includes a floor panel constituting the floor of a cabin; a seat rail disposed on the upper surface of the floor panel; and a retainer for supporting the floor panel at a position where the seat rail is present thereabove with the floor panel in-between. The seat rail, the floor panel, and the retainer are attached to one another with a bolt and a nut (a first attachmenting portion) at a position where the seat rail, the floor panel, and the retainer are placed overlapping one on the other. The floor panel is welded on the retainer at a position (a second attachmenting portion) away from the first attachment portion. The retainer has a bead formed between the first attachment portion and the second attachment portion. The bead extends along the longitudinal direction of a seat rail.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventor: Takahiro Yoshida
  • Patent number: 10538101
    Abstract: A liquid discharging head includes: a nozzle plate having a plurality of nozzles from which liquid is discharged; a channel member including a plurality of individual liquid chambers that lead to the plurality of nozzles, respectively, and including a plurality of circulation channels that lead to the plurality of individual liquid chambers, respectively; and a common liquid chamber member for forming a common liquid chamber that supplies liquid to the plurality of individual liquid chambers and for forming a circulation common liquid chamber that leads to the plurality of circulation channels.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: January 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiko Kohda, Takahiro Yoshida, Shiomi Andou, Takayuki Nakai, Kanshi Abe, Takeshi Shimizu, Ryo Kasahara
  • Patent number: 10538099
    Abstract: An inkjet recording apparatus is provided. The inkjet recording apparatus includes a curable ink and a discharge head. The curable ink comprises a polymer having a polyester structural unit. The discharge head includes an individual liquid chamber including a circulation channel in which the curable ink is circulatable, and a nozzle from which the curable ink is dischargeable.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masato Iio, Takahiro Yoshida
  • Patent number: 10525670
    Abstract: An alloy plate coated material including a base material and an alloy plate layer which is formed on the base material to constitute an outermost layer and is formed from a M1-M2-M3 alloy. M1 is at least one element selected from Ni, Fe, Co, Cu, Zn and Sn. M2 is at least one element selected from Pd, Re, Pt, Rh, Ag and Ru. M3 is at least one element selected from P and B. The alloy plate layer has a molar ratio of M1 to M2 (M1/M2) of 0.005 to 0.5.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: January 7, 2020
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Nobuaki Mukai, Tomoyuki Tsuruda, Takahiro Yoshida
  • Patent number: 10495989
    Abstract: The present invention provides an imprint apparatus which forms a pattern in an imprint material on a shot region of a substrate by using a mold, the apparatus comprising a stage that can move while holding the substrate, and a control unit configured to control relative positions of the mold and the shot region so as to reduce a shift in the relative positions caused by tilting the stage when bringing the mold and the imprint material into contact with each other, based on a contacting force of bringing the mold and the imprint material into contact with each other, and a distance from a reference position of the substrate to the shot region.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tosiya Asano, Takahiro Yoshida
  • Patent number: 10468204
    Abstract: A capacitor includes a capacitor element having electrode foils on the anode side and the cathode side laminated via separators, connecting parts of terminal components being disposed inside a laminated portion of the electrode foils and the separators, the connecting parts being connected to the electrode foils on the anode side and the cathode side; and a case that includes a storage part storing the capacitor element and having an opening portion sealed by a sealing body, that has a crimped part crimped from the outside of the storage part toward a side surface of the capacitor element, and that holds the capacitor element with the crimped part. The case is crimped to form the crimped part while avoiding a position at which the electrode foils of the capacitor element in the storage part overlap with tip portions of the connecting parts of the terminal components.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: November 5, 2019
    Assignee: NIPPON CHEMI-CON CORPORATION
    Inventors: Hirotsugu Ashino, Fusayoshi Endoh, Daizou Senzai, Takahiro Yoshida
  • Publication number: 20190283414
    Abstract: A liquid discharge device includes a liquid discharge head including a plurality of liquid chambers respectively communicating with a plurality of nozzles and circulating liquid therethrough. Each liquid chamber is provided with a pressure generator for discharging the liquid from a corresponding nozzle. The liquid discharge device further includes a waveform data memory to store drive waveform data including discharge drive waveform data for discharging the liquid according to image data and micro-vibration drive waveform data for causing a micro vibration of a meniscus of the liquid discharge head. The liquid discharge device further includes circuitry configured to generate a drive waveform based on the drive waveform data; apply, to the pressure generator, a discharge drive waveform based on the discharge drive waveform data, in a printing area; and apply, to the pressure generator, a micro-vibration drive waveform based on the micro-vibration drive waveform data, in a non-print area.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventor: Takahiro YOSHIDA
  • Patent number: 10399355
    Abstract: A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, a plurality of discharge channels communicating with the plurality of individual chambers, a plurality of supply-side common chambers connected to the plurality of individual chambers, and a plurality of discharge-side common chambers connected to the plurality of discharge channels. The plurality of discharge-side common chamber has a same fluid resistance.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: September 3, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Nakai, Toshimichi Odaka, Takakazu Kihira, Takahiro Yoshida, Shiomi Andou, Yukio Otome, Katsuya Ishii
  • Publication number: 20190263119
    Abstract: A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common supply channel, and a common collection channel. The plurality of nozzles discharges a liquid. The plurality of individual liquid chambers communicates with the plurality of nozzles, respectively. The common supply channel communicates with the plurality of individual liquid chambers. The common collection channel communicates with the plurality of individual liquid chambers. At least a part of at least one of the common supply channel and the common collection channel is disposed at a position overlapping with the plurality of individual liquid chambers when the plurality of individual liquid chambers is projected in a vertical direction.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 29, 2019
    Inventors: Toshimichi Odaka, Takahiro Yoshida, Takakazu Kihira
  • Publication number: 20190240978
    Abstract: A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, respectively, a supply-side common chamber communicating with each of the plurality of individual chambers, and a recovery-side common chamber communicating with each of the plurality of individual chambers. The supply-side common chamber and a part of the recovery-side common chamber are aligned in a longitudinal direction of the plurality of individual chambers orthogonal to a nozzle array direction along Which the plurality of nozzles is arrayed.
    Type: Application
    Filed: January 2, 2019
    Publication date: August 8, 2019
    Inventors: Koji KAWAHARA, Takahiro YOSHIDA
  • Publication number: 20190202015
    Abstract: A machining system comprises: a machining device that machines a workpiece; a set-up station with which pallet workpiece attachment/detachment is carried out; and a pallet conveyance device that conveys the pallet between the machining device and the set-up station. A partially cylindrical operator door, which can rotate around a set-up table on which the pallet is mounted, includes a partially cylindrical outer door and a partially cylindrical inner door which rotate following coaxial circular trajectories of different radii. The set-up station is provided with an interlocking mechanism that causes the outer door and the inner door to rotate in an interlocked manner so that a shielded state is constantly maintained between the operator side and the pallet conveyance device side.
    Type: Application
    Filed: September 9, 2016
    Publication date: July 4, 2019
    Applicant: MAKINO J CO., LTD.
    Inventors: Takudai MAENOSONO, Takahiro YOSHIDA, Nobuhiro UCHIDA, Yuichi AOYAMA
  • Patent number: 10300706
    Abstract: An inkjet printing device includes an ink containing a silver particle and water; and an ink discharging head including multiple nozzles to discharge the ink, individual liquid chambers communicating with the multiple nozzles, a common liquid chamber to supply the ink to the individual liquid chambers, a circulating flow path communicating with the individual liquid chambers, a common circulating liquid chamber communicating with the circulating flow path, and a pressure generator to apply a pressure to the ink in the individual liquid chambers, wherein the proportion of the silver particle to the ink is from 1 to 15 percent by mass.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 28, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshimasa Miyazawa, Tatsuya Tomura, Takuya Fujita, Hisashi Habashi, Takahiro Yoshida
  • Patent number: 10294568
    Abstract: There is provided a metal plate coated stainless material (100) which includes a stainless steel sheet (10) having formed thereon a passivation film (11) having a Cr/O value in the range of 0.05 to 0.2 and a Cr/Fe value in the range of 0.5 to 0.8 at the surface as measured by an Auger electron spectroscopy analysis and a metal plated layer (20) formed on the passivation film (11) of the stainless steel sheet (10), in which the metal plated layer (20) is a plated layer formed from any one metal selected from among Ag, Pd, Pt, Rh, Ru, Cu, Sn and Cr, or an alloy of these metals.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 21, 2019
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Nobuaki Mukai, Takahiro Yoshida