Patents by Inventor Junichi Seki

Junichi 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: 20240086662
    Abstract: An object is to print a high quality image with resistance to print misalignment. To this end, the image processing apparatus generates quantized data for printing a first dot pattern and a second dot pattern in an overlapping manner. The first dot pattern and the second dot pattern are lattice patterns varying in a combination of two basis vectors. In a combined dot pattern obtained by combining the first and second dot patterns, there is a neighboring dot in which a dot in the first dot pattern and a dot in the second dot pattern are arranged at an interval smaller than a lattice spacing. The neighboring dot includes multiple neighboring dots varying in an approach direction.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Tsukasa Doi, Hirokazu Tanaka, Satoshi Seki, Junichi Nakagawa, Mayuko Yamagata
  • Publication number: 20230317336
    Abstract: A complex magnetic composition 10 includes a binder 14 including a bisphenol type epoxy resin with restricted molecular rotation and magnetic particles 12 bound together by the binder 14.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 5, 2023
    Applicant: TDK CORPORATION
    Inventor: Junichi SEKI
  • Patent number: 11651118
    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: Grant
    Filed: June 9, 2020
    Date of Patent: May 16, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tosiya Asano, Junichi Seki, Yuichiro Oguchi
  • Publication number: 20220406501
    Abstract: A dust core includes a binder and magnetic particles. The binder includes an epoxy resin. The magnetic particles are dispersed in the binder. The epoxy resin has at least two or more mesogenic skeletons between two epoxy bonds adjacent along a molecular chain.
    Type: Application
    Filed: June 3, 2022
    Publication date: December 22, 2022
    Applicant: TDK CORPORATION
    Inventors: Yusuke TANIGUCHI, Junichi SEKI, Junichi SHIMAMURA
  • Publication number: 20210350047
    Abstract: 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 and a second member into contact with each other and forming a film of the curable composition on the first member is disclosed. The method includes defining a computational grid formed by a plurality of computational elements so that a plurality of droplets of the curable composition fall within one computational element, and obtaining the behavior of the curable composition in each computational element in accordance with a model corresponding to a state of the curable composition in each computational element.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventors: Tosiya Asano, Junichi Seki, Yuichiro Oguchi
  • Patent number: 10990005
    Abstract: A method in which alignment control of a member and a substrate is effected with respect to an in-plane direction of the substrate and an uncured material in a state of bringing a member and the uncured material on a substrate into contact with each other is cured. The method includes a step of bringing the member and the substrate near to each other while effecting the alignment control, based on a driving profile, after the alignment control is started, to bring the member and the uncured material into contact with each other, and then the uncured material is cured, and a step of increasing a gap between the member and the substrate, after the uncured material is cured, wherein the driving profile for the alignment control after the alignment control is started and at least one of before and after the member contacts the uncured material is changed.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: April 27, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi
  • 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
  • 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: 20200363716
    Abstract: An imprint method of performing an imprint process for curing an imprint material in a state in which the imprint material on a shot region of a substrate and a pattern portion of a mold are in contact with each other, includes an adjusting step of adjusting, in accordance with shape information indicating a shape of a surface of at least one of the shot region and the pattern portion in a thickness direction of the pattern portion in the state, at least one of a distortion of the shot region in a planar direction orthogonal to the thickness direction and a distortion of the pattern portion in the planar direction.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventor: Junichi Seki
  • Patent number: 10777443
    Abstract: An imprint apparatus for forming a pattern of an imprint material on a mold and a substrate includes a substrate holding unit configured to hold the substrate, and a charging unit configured to charge at least one of a surface of the substrate holding unit on a side facing the mold or a particle existing in the vicinity of the surface to the same polarity as the charge polarity of the mold.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 15, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiji Sakamoto, Junichi Seki
  • Publication number: 20200241411
    Abstract: A method in which alignment control of a member and a substrate is effected with respect to an in-plane direction of the substrate and an uncured material in a state of bringing a member and the uncured material on a substrate into contact with each other is cured. The method includes a step of bringing the member and the substrate near to each other while effecting the alignment control, based on a driving profile, after the alignment control is started, to bring the member and the uncured material into contact with each other, and then the uncured material is cured, and a step of increasing a gap between the member and the substrate, after the uncured material is cured, wherein the driving profile for the alignment control after the alignment control is started and at least one of before and after the member contacts the uncured material is changed.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi
  • Patent number: 10670961
    Abstract: An imprint apparatus forms a pattern of an imprint material on a substrate by using a mold, while effecting alignment control of a mold and a substrate with respect to an in-plane direction of the substrate. A mold holding portion holds the mold. A substrate holding portion holds the substrate. A control portion effects control so that the mold and the substrate are brought near to each other while effecting the alignment control, based on a driving profile, after the alignment control is started, to bring the mold and the imprint material into contact with each other. The imprint material is then cured. The control portion changes the driving profile for the alignment control after the alignment control is started and at least one of before and after the mold contacts the imprint material.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: June 2, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi
  • Patent number: 10620532
    Abstract: Provided is an imprint method that molds an uncured resin applied to a substrate by a pattern portion formed on a mold and cures the uncured resin so as to form the pattern of the resin cured on the substrate. The imprint method includes a step of releasing the pattern portion from the resin such that two opposed boundaries are brought closer to each other to progress peeling while maintaining a parallel state after curing of the resin based on the assumption that the boundary at which the pattern portion is peeled from the resin is linear.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Junichi Seki, Motoki Okinaka
  • Patent number: 10596870
    Abstract: Method of manufacturing a vehicular arm component having a particular torsional rigidity and a sufficient tensile strength. Method of manufacturing a vehicular arm component 1 having a hollow shape in open cross-section by subjecting workpiece W, which is a flat plate, extending in an XY plane to pressing in stages such that two side surfaces W1, W2 of the workpiece in an XZ plane formed by the X direction and a Z direction face one another across a gap G, the method including a restriking process in which a protrusion 113 disposed on a restriking die 110 to be extended in the X direction is arranged in the gap between the two side surfaces facing one another and the two side surfaces are brought into contact with the protrusion such that the workpiece is pressed from an outer periphery to an inner periphery.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: March 24, 2020
    Assignee: Yorozu Corporation
    Inventors: Hiroshi Kimura, Masaharu Matsumoto, Junichi Seki, Tomo Tsuchida
  • Patent number: 10569450
    Abstract: The present invention provides an imprint apparatus which performs an imprint process of forming, by using a mold, a pattern of an imprint material on a substrate, including an obtaining unit configured to obtain electric charge information on an amount of first electric charges charged on a first surface of the mold on a side of the substrate by releasing the mold from the cured imprint material on the substrate, a supply unit configured to supply second electric charges having a polarity opposite to that of the first electric charges to an electrode arranged on a second surface of the mold on a side opposite to the first surface, and a control unit configured to control, based on the electric charge information, an amount of the second electric charges supplied from the supply unit to the electrode.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: February 25, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Junichi Seki
  • Publication number: 20170246658
    Abstract: An imprint apparatus for forming a pattern of an imprint material on a mold and a substrate includes a substrate holding unit configured to hold the substrate, and a charging unit configured to charge at least one of a surface of the substrate holding unit on a side facing the mold or a particle existing in the vicinity of the surface to the same polarity as the charge polarity of the mold.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 31, 2017
    Inventors: Eiji Sakamoto, Junichi Seki
  • Publication number: 20170248843
    Abstract: The present invention provides an imprint apparatus which performs an imprint process of forming, by using a mold, a pattern of an imprint material on a substrate, including an obtaining unit configured to obtain electric charge information on an amount of first electric charges charged on a first surface of the mold on a side of the substrate by releasing the mold from the cured imprint material on the substrate, a supply unit configured to supply second electric charges having a polarity opposite to that of the first electric charges to an electrode arranged on a second surface of the mold on a side opposite to the first surface, and a control unit configured to control, based on the electric charge information, an amount of the second electric charges supplied from the supply unit to the electrode.
    Type: Application
    Filed: February 9, 2017
    Publication date: August 31, 2017
    Inventor: Junichi Seki
  • Publication number: 20170144499
    Abstract: Providing a method of manufacturing a vehicular arm component having a torsional rigidity of a predetermined level or less and a sufficient tensile strength in the entire circumferential direction. A method of manufacturing a vehicular arm component for manufacturing the vehicular arm component 1 having a hollow shape in open cross-section by subjecting a workpiece W, which is a flat plate, extending in an XY plane formed by an X direction and a Y direction to pressing in stages such that two side surfaces W1, W2 of the workpiece in an XZ plane formed by the X direction and a Z direction face one another across a gap G, the method including a restriking process in which a protrusion 113 disposed on a restriking die 110 to be extended in the X direction is arranged in the gap between the two side surfaces facing one another and the two side surfaces are brought into contact with the protrusion such that the workpiece is pressed from an outer periphery to an inner periphery.
    Type: Application
    Filed: March 27, 2014
    Publication date: May 25, 2017
    Applicant: Yorozu Corporation
    Inventors: Hiroshi KIMURA, Masaharu MATSUMOTO, Junichi SEKI, Tomo TSUCHIDA
  • Publication number: 20170115560
    Abstract: An imprint apparatus forms a pattern of an imprint material on a substrate by using a mold, while effecting alignment control of a mold and a substrate with respect to an in-plane direction of the substrate. A mold holding portion holds the mold. A substrate holding portion holds the substrate. A control portion effects control so that the mold and the substrate are brought near to each other while effecting the alignment control, based on a driving profile, after the alignment control is started, to bring the mold and the imprint material into contact with each other. The imprint material is then cured. The control portion changes the driving profile for the alignment control after the alignment control is started and at least one of before and after the mold contacts the imprint material.
    Type: Application
    Filed: January 10, 2017
    Publication date: April 27, 2017
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi
  • Patent number: 9579843
    Abstract: An imprint apparatus performs alignment control of a mold and a substrate. A pattern formed on the mold is transferred onto a pattern forming layer on the substrate. A mold holding portion holds the mold, a substrate holding portion holds the substrate, and a control portion effects control so that the mold and the substrate are brought near to each other during the alignment control. The mold and the pattern forming layer are brought into contact with each other and then the pattern forming layer is cured. The control portion changes a driving profile for the alignment control after the alignment control is started and at least one of before and after the mold contacts the pattern forming layer. The driving profile used to move at least one of the mold holding portion and the substrate holding portion to a target position, and includes at least one of acceleration, speed, driving voltage, and driving current.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shingo Okushima, Nobuhito Suehira, Junichi Seki, Kazuyuki Kasumi