Patents by Inventor Yuichiro Seki

Yuichiro Seki 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: 20200394346
    Abstract: There is provided a simulation method of predicting a behavior of a curable composition in a process of bringing a plurality of droplets of the curable composition arranged on one of a first member and a second member into contact with an other of the first member and the second member and forming a film of the curable composition on the first member. The method includes generating a link by connecting two adjacent representative points of the plurality of droplets, generating a cell as a closed region formed by a plurality of links, and determining, based on the presence/absence of merging of droplets corresponding to each link forming the cell, whether a bubble is formed in the cell.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 17, 2020
    Inventors: Tosiya Asano, Junichi Seki, Yuichiro Oguchi
  • Publication number: 20200394349
    Abstract: The present invention provides a simulation method of predicting a behavior of a curable composition in a process of bringing a plurality of droplets of the curable composition arranged on a first member into contact with a second member and forming a film of the curable composition in a space between the first member and the second member, wherein for each of the plurality of droplets of the curable composition, a distance from a representative point of the droplet to a point on a contour of the droplet is obtained so as to match the area of the inner region of the contour to an area of the droplet obtained from a volume of the droplet and a distance between the first member and the second member in accordance with a change of the distance between the first member and the second member.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 17, 2020
    Inventors: Tosiya Asano, Junichi Seki, Yuichiro Oguchi
  • Patent number: 10865883
    Abstract: Provided is a sealing device capable of suppressing leakage of a fluid to be sealed while reducing rotary torque regardless of rotational direction. In a sealing ring (100) slides against a side wall surface on a low pressure side of an annular groove, a dynamic pressure generating groove (120) that includes a first groove (121) having a constant width in a radial direction and extending in a circumferential direction and a second groove (122) extending from a center position of the first groove (121) in the circumferential direction to an inner circumferential surface and guiding a fluid to be sealed into the first groove (121) is provided on a sliding surface side which slides against the side wall surface. The first groove (121) is provided at a position within a sliding region in which the sealing ring slides against the side wall surface.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 15, 2020
    Assignees: NOK CORPORATION, EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Seki, Takeshi Hosoe, Hideyuki Inoue, Yuichiro Tokunaga
  • Patent number: 10730299
    Abstract: There is provided a method for manufacturing a liquid discharge head including a liquid discharge head substrate and a flow path forming member, the liquid discharge head substrate having a base, a pressure generation portion provided at a front surface of the base to generate pressure for discharging a liquid, and a supply port for supplying the liquid to the pressure generation portion, and the flow path forming member forming a flow path for feeding the liquid supplied from the supply port to the pressure generation portion. The method includes removing a sacrificial layer by etching the base from a back surface of the base, in a state in which an end covering portion of a cover layer for covering the sacrificial layer is covered with the resin layer. The method suppresses formation of a crack in the end covering portion that covers the end portion of the sacrificial layer.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuji Tamaru, Yuichiro Akama, Naoko Tsujiuchi, Sayaka Seki, Yasuaki Kitayama, Yusuke Hashimoto, Takanobu Manabe
  • Patent number: 10714498
    Abstract: According to one embodiment, a semiconductor memory device includes: a first interconnect layer; a second interconnect layer adjacent to the first interconnect layer; a semiconductor layer between the first and second interconnect layers; a first charge storage layer between the first interconnect layer and the semiconductor layer; and a second charge storage layer between the second interconnect layer and the semiconductor layer. A first distance between the first and second interconnect layers is shorter than a second distance between the first and second charge storage layers.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 14, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Harumi Seki, Yuichiro Mitani, Takamitsu Ishihara
  • Publication number: 20200130466
    Abstract: A vehicle air conditioning apparatus is provided. The vehicle air conditioning apparatus includes: a plurality of seat air conditioning units configured to selectively perform cooling or heating for corresponding seats installed in a cabin, respectively; and a plurality of exhaust ducts for discharging, outside the cabin, part of air used in the plurality of seat air conditioning units. At least part of the plurality of exhaust ducts is merged.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventors: Yuichiro IMAIZUMI, Kazuhiko SEKI, Subaru MATSUMOTO
  • Publication number: 20200130467
    Abstract: A vehicle air conditioning apparatus is provided which includes: a plurality of seat air conditioning units configured to selectively perform cooling or heating per corresponding seat among a plurality of seats installed in a cabin, respectively; and a plurality of exhaust ducts for discharging, outside the cabin, part of air used in the plurality of seat air conditioning units. An exhaust duct of a given one of the plurality of seat air conditioning units is connected to an air inlet of another seat air conditioning unit.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventors: Yuichiro IMAIZUMI, Kazuhiko SEKI, Subaru MATSUMOTO
  • Publication number: 20200091180
    Abstract: According to one embodiment, a semiconductor memory device includes: a first interconnect layer; a second interconnect layer adjacent to the first interconnect layer; a semiconductor layer between the first and second interconnect layers; a first charge storage layer between the first interconnect layer and the semiconductor layer; and a second charge storage layer between the second interconnect layer and the semiconductor layer. A first distance between the first and second interconnect layers is shorter than a second distance between the first and second charge storage layers.
    Type: Application
    Filed: March 6, 2019
    Publication date: March 19, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Harumi SEKI, Yuichiro MITANI, Takamitsu ISHIHARA
  • Publication number: 20190312472
    Abstract: According to one embodiment, a stator includes spacing strips disposed to be interposed in the electromagnetic steel plates for each predetermined set of plates of the electromagnetic steel plates, each of the spacing strips extending in a radial direction of the stator iron core to form ventilation ducts, a spacing strip attachment plate which is disposed between the spacing strips and the set of plates of the electromagnetic steel plates to fix the spacing strips, and an insulating layer which covers the entirety of the spacing strip attachment plate and the spacing strips fixed to the spacing strip attachment plate.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Shunsuke ISHIZAKI, Ken NAGAKURA, Yuichiro GUNJI, Norio TAKAHASHI, Masahiro SEKI
  • Publication number: 20190283636
    Abstract: A vehicle air conditioning system includes: a vehicle seat provided with a seat cushion having a side surface that is curved inward with respect to a widthwise direction as the side surface extends upward; an air conditioning unit configured to adjust a temperature of air and discharge temperature-adjusted air; and a blowing opening provided to open upward at a position along the side surface of the seat cushion and blowing the air discharged from the air conditioning unit.
    Type: Application
    Filed: February 15, 2019
    Publication date: September 19, 2019
    Inventors: Yuichiro IMAIZUMI, Kazuhiko SEKI
  • Publication number: 20190168509
    Abstract: There is provided a method for manufacturing a liquid discharge head including a liquid discharge head substrate and a flow path forming member, the liquid discharge head substrate having a base, a pressure generation portion provided at a front surface of the base to generate pressure for discharging a liquid, and a supply port for supplying the liquid to the pressure generation portion, and the flow path forming member forming a flow path for feeding the liquid supplied from the supply port to the pressure generation portion. The method includes removing a sacrificial layer by etching the base from a back surface of the base, in a state in which an end covering portion of a cover layer for covering the sacrificial layer is covered with the resin layer. The method suppresses formation of a crack in the end covering portion that covers the end portion of the sacrificial layer.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Yuji Tamaru, Yuichiro Akama, Naoko Tsujiuchi, Sayaka Seki, Yasuaki Kitayama, Yusuke Hashimoto, Takanobu Manabe
  • Patent number: 10303080
    Abstract: An image forming apparatus includes: a photosensitive member; a process member configured to act on the photosensitive member; and a light scanning apparatus configured to emit a light beam to the photosensitive member. The light scanning apparatus includes: a light source; a rotary polygon mirror; a first signal generating unit configured to receive the light beam deflected by the rotary polygon mirror to generate a first signal indicating a scan starting position; and a second signal generating unit configured to generate a second signal based on a rotation angle of the rotary polygon mirror. A lighting-up timing of the light source for generating the first signal is determined based on a number of the second signals after a voltage for image formation is applied and a relationship between the first signal and the second signal is obtained before the voltage is applied and after the rotary polygon mirror is rotated.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 28, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehiro Ishidate, Yuichiro Imai, Yasuaki Otoguro, Hirotaka Seki, Kazumi Sato
  • Patent number: 10300699
    Abstract: A liquid discharge head includes a recording element substrate having first to fourth discharge port groups, each of which includes a plurality of discharge ports for discharging liquid, first flow path connecting a first liquid tank to the first discharge port group, a second flow path connecting a second liquid tank to the second discharge port group, and a third flow path connecting a third liquid tank to the third discharge port group and the fourth discharge port group, wherein a flow resistance in the first flow path is smaller than a flow resistance in the second flow path and larger than a flow resistance in the third flow path, and wherein a ratio of the flow resistance in the second flow path to the flow resistance in the third flow path is 4 or less.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 28, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sayaka Seki, Yuichiro Akama, Yuji Tamaru, Naoko Tsujiuchi, Yasuaki Kitayama
  • Patent number: 10046397
    Abstract: The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 ?m and not more than 10 ?m and an average length of roughness profile elements RSm of not less than 3.1 ?m and not more than 5.4 ?m, and that the diamond layer has a plurality of cavities at a portion bordering on the base material.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 14, 2018
    Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Kiichi Meguro, Shinji Matsukawa
  • Publication number: 20180147634
    Abstract: The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 ?m and not more than 10 ?m and an average length of roughness profile elements RSm of not less than 3.1 ?m and not more than 5.4 ?m, and that the diamond layer has a plurality of cavities at a portion bordering on the base material.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 31, 2018
    Applicants: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Kiichi Meguro, Shinji Matsukawa
  • Patent number: 9963801
    Abstract: A single crystal diamond (10) is provided as a single crystal diamond into which a defect portion (11) is introduced. The defect portion (11) can be detected by a phase difference occurring when the single crystal diamond (10) is irradiated with circularly polarized light. In the single crystal diamond (10), a maximum value of average values of the phase differences measured within a measurement region (M) formed in a shape of a square having a side length of 1 mm is 30 nm or more.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 8, 2018
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiki Nishibayashi, Akihiko Ueda, Hitoshi Sumiya, Yutaka Kobayashi, Yuichiro Seki, Toshiya Takahashi
  • Patent number: 9957640
    Abstract: A single crystal diamond has a surface. In the single crystal diamond, a measurement region is defined in the surface, the measurement region includes a portion exhibiting a transmittance that is highest in the single crystal diamond and a portion exhibiting a transmittance that is lowest in the single crystal diamond, the measurement region has a plurality of square regions that are continuously arranged and each have a side having a length of 0.2 mm, and an average value of transmittances in each of the plurality of square regions is measured, wherein assuming that the average value of the transmittances in one square region is defined as T1 and the average value of the transmittances in another square region adjacent to the one square region is defined as T2, a relation of ((T1?T2)/((T1+T2)/2)×100)/0.2?20 (%/mm) is satisfied throughout the measurement region.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: May 1, 2018
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiki Nishibayashi, Akihiko Ueda, Hitoshi Sumiya, Yutaka Kobayashi, Yuichiro Seki, Toshiya Takahashi
  • Patent number: 9731355
    Abstract: The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 ?m and not more than 10 ?m and an average length of roughness profile elements RSm of not less than 1 ?m and not more than 100 ?m, and that the diamond layer has a plurality of cavities extending from a portion bordering on the base material in a crystal growth direction.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: August 15, 2017
    Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Kiichi Meguro, Shinji Matsukawa
  • Publication number: 20170216927
    Abstract: The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 ?m and not more than 10 ?m and an average length of roughness profile elements RSm of not less than 3.1 ?m and not more than 5.4 ?m, and that the diamond layer has a plurality of cavities at a portion bordering on the base material.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Kiichi Meguro, Shinji Matsukawa
  • Patent number: 9522617
    Abstract: Provided is a vehicle seat capable of efficiently absorbing impact energy generated upon a rear end collision in a manner such that the vehicle seat is stably deformed at a specific position with respect to a complex input load generated upon a rear end collision. A vehicle seat includes: frame side portions that are located at the right and left sides of a seat back frame and extend in the up to down direction; and frame extension portions that extend from the frame side portions toward the inside in the right and left direction. A connection portion that connects the frame side portions to the frame extension portions is provided with a deformation portion that is deformed when an impact load is applied thereto. The deformation portion is formed adjacent to other deformation portions having deformation characteristics different from that of the deformation portion.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: December 20, 2016
    Assignee: TS Tech Co., Ltd.
    Inventors: Yuichiro Seki, Takaya Kurisu, Kenichi Niitsuma