Patents by Inventor Takashi Maruyama

Takashi Maruyama 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: 11605903
    Abstract: Waveguide slot array antennas each having slots, that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide and waveguide slot array antennas each having slots that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide, and the waveguide slot array antennas and the waveguide slot array antennas are alternately arranged, the waveguide is a ridge waveguide having a ridge formed inside the waveguide, and the waveguide is a ridge waveguide having ridges, formed inside the waveguide.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: March 14, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hikaru Watanabe, Takashi Maruyama, Masataka Otsuka, Yu Ushijima, Kazunari Kihira
  • Publication number: 20230068976
    Abstract: The present disclosure provides a photoelectric conversion element including a first electrode 3, a second electrode 7, a photoelectric conversion layer 5 between the first electrode 3 and the second electrode 7, and a reflection layer 6 between one of the first electrode 3 and the second electrode 7 and the photoelectric conversion layer 5. The wavelength at which the reflectance of the reflection layer 6 is maximum in the visible region is within the range of wavelengths in which the optical absorption coefficient of the photoelectric conversion layer 5 is ? or more of the maximum optical absorption coefficient in the visible region.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 2, 2023
    Inventors: Hiroyuki Watanabe, Akihiro Maruyama, Tatsuya Yamaai, Kenichi Kaku, Shuntaro Watanabe, Jumpei Kuno, Kazunori Noguchi, Takashi Anezaki, Nobuhiro Nakamura, Kohei Makisumi
  • Publication number: 20230035534
    Abstract: A waveguide microstrip line converter includes: a waveguide; a dielectric substrate; a ground conductor provided with a slot; a line conductor; and a conductor located at a distance from the line conductor and adjacent to the line conductor. The line conductor includes a microstrip line, a conversion unit, a first impedance transforming unit, a second impedance transforming unit, and a third impedance transforming unit, the microstrip line having a first line width, the conversion unit being located immediately above the slot and having a second line width larger than the first line width, the first impedance transforming unit, the second impedance transforming unit, and the third impedance transforming unit extending in a first direction from the conversion unit and having a role in impedance matching between the microstrip line and the conversion unit. The conductor is adjacent to at least part of the conversion unit of the line conductor.
    Type: Application
    Filed: March 6, 2020
    Publication date: February 2, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takashi MARUYAMA, Shigeo UDAGAWA, Mitsuru KIRITA
  • Publication number: 20230023899
    Abstract: A policy learning apparatus of the present invention includes: a first unit configured to select a first action element based on a selection rate for each of choices of the first element whose number of choices does not depend on a state; a second unit configured to apply the selected first action element and further apply each of choices of a second action element whose number of choices depends on the state to obtain another state for each of the choices, and determine the other state based on a reward obtained by shifting to the other state and a value of the other state; and a third unit configured to further learn a model by using learning data generated based on information used when determining the other state.
    Type: Application
    Filed: January 17, 2020
    Publication date: January 26, 2023
    Applicant: NEC Corporation
    Inventors: Yutaka YAKUWA, Takashi Maruyama
  • Patent number: 11561770
    Abstract: A system configuration derivation device 90 includes a storage unit 91 that stores a concretization rule in which a method is specified for concretizing abstract configuration information by confirming an unconfirmed portion of the abstract configuration information, which is information indicating configuration of a system in which the unconfirmed portion is included, and a generation unit 92 that concretizes the abstract configuration information included in configuration requirements of the system using the concretization rule stored to generate system configuration information, which is information indicating the configuration of the system in which the unconfirmed portion is not included, on the basis of the configuration requirements.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 24, 2023
    Assignee: NEC CORPORATION
    Inventors: Takayuki Kuroda, Takuya Kuwahara, Takashi Maruyama
  • Patent number: 11555917
    Abstract: A radar device includes a transmission antenna and a reception antenna that is a structure different from the transmission antenna. The transmission antenna includes a single or a plurality of transmission element antennae and a transmission dielectric substrate where the single or the plurality of transmission element antennae is positioned, and a length in a first direction of the transmission antenna is longer than a length in a second direction of the transmission antenna, and the second direction is orthogonal to the first direction. The reception antenna includes a single or a plurality of reception element antennae and a reception dielectric substrate where the single or the plurality of reception element antennae is positioned, a length in a third direction of the reception antenna is longer than a length in a fourth direction of the reception antenna, and the fourth direction is orthogonal to the third direction.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: January 17, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takashi Maruyama, Masanori Ito, Michiaki Kasahara, Shigeo Udagawa
  • Patent number: 11524327
    Abstract: A device for manufacturing a laminated iron core includes: a punch unit configured to form protrusions, and including N number of punches as a set, the N being a natural number larger than M; and N number of auxiliary punches. The N number of auxiliary punches are configured such that L number of auxiliary punches selected from the N number of auxiliary punches performs a nullification processing on a metal sheet, the nullification processing being configured to nullify a processing with the L number of punches among the N number of punches, the L being the natural number that is obtained by subtracting the M from the N. According to the above configurations, for example, since a processing position with the plurality of punches is limited in one position, a positional accuracy of protrusions formed in punched members with the plurality of punches is improved.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: December 13, 2022
    Assignee: MITSUI HIGH-TEC, INC.
    Inventor: Takashi Maruyama
  • Publication number: 20220389575
    Abstract: A vacuum processing apparatus with excellent processing uniformity and capable of effectively performing routine and non-routine maintenance even when an object to be processed has an increased diameter is provided. In the vacuum processing apparatus having a vacuum transfer chamber, this apparatus comprises a lower vessel having a cylindrical shape, a sample stage unit including a sample stage and a ring-shaped sample stage base having support beams disposed axisymmetric with respect to a central axis of the sample stage, an upper vessel having a cylindrical shape, and a moving mechanism which is fixed to the sample stage base and is capable to move the sample stage unit movable in a vertical direction and in a horizontal direction.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Takashi Uemura, Susumu Tauchi, Kohei Sato, Eiji Maruyama
  • Patent number: 11500301
    Abstract: An electrophotographic photosensitive member, which is suppressed in occurrence of fogging and is excellent in abrasion resistance. In the electrophotographic photosensitive member, an outermost surface layer of the electrophotographic photosensitive member comprises a polymerized product of a composition comprising at least a polyrotaxane and a monomer having a polymerizable reactive group, and a chain molecule of the polyrotaxane has two blocking groups at both terminals thereof, and a (meth)acryloyloxy group of a cyclic molecule of the polyrotaxane forms a bond.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: November 15, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hideharu Shimozawa, Kenichi Kaku, Tsutomu Nishida, Kazunori Noguchi, Akihiro Maruyama, Kaname Watariguchi, Takashi Anezaki, Haruyuki Tsuji
  • Patent number: 11493853
    Abstract: An electrophotographic photosensitive member having a support and a photosensitive layer on the support, wherein the electrophotographic photosensitive member comprises a surface layer comprising a polymerization product of a composition containing polyrotaxane and a charge transporting substance, and the polymerization product including a bond between the polyrotaxane and the charge transporting substance.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: November 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideharu Shimozawa, Kenichi Kaku, Tsutomu Nishida, Kazunori Noguchi, Akihiro Maruyama, Kaname Watariguchi, Takashi Anezaki, Haruyuki Tsuji
  • Publication number: 20220350318
    Abstract: An information processing apparatus configured to generate an initial order for manufacturing a plurality of products by using a plurality of parts, generate a plurality of states in which the order of the plurality of parts, allocate the plurality of parts included in the range to the plurality of products, acquire the product quality of each of the plurality of products to which the plurality of parts is allocated, repeat order search that determines the order of the parts in the range based on the product quality while changing the position of the range in the initial order, and search for a first order of the plurality of parts by executing processing of determining the order of the parts in the initial order after changing the order in the range as a part of the initial order, while sequentially changing a position of the range in the initial order.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Kazunori Maruyama, Takashi Yamazaki, Takeshi Soeda
  • Patent number: 11476089
    Abstract: A control method of a plasma processing apparatus including a first electrode that places a workpiece thereon includes supplying a bias power to the first electrode, and supplying a source power having a frequency higher than that of the bias power into a plasma processing space. The source power has a first state and a second state. The control method further includes a first control process of alternately applying the first state and the second state of the source power in synchronization with a signal synchronized with a cycle of a radio frequency of the bias power, or a phase within one cycle of a reference electrical state that represents any one of a voltage, current, and electromagnetic field measured in a power feeding system of the bias power.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 18, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Chishio Koshimizu, Taichi Hirano, Toru Hayasaka, Shinji Kubota, Koji Maruyama, Takashi Dokan
  • Patent number: 11469651
    Abstract: A device and a method for manufacturing a laminated iron core are provided for including: a first supply unit of supplying a first adhesive to a first part of a predetermined region, the predetermined region corresponding to a punched member of a strip-shaped metal sheet intermittently fed in one predetermined direction; a second supply unit arranged at a downstream side in a conveyance direction of the metal sheet with respect to the first supply unit, and of supplying a second adhesive to a second part different from the first part of the predetermined region; and a punching unit of punching the predetermined region of the metal sheet to which the first supply unit and the second supply unit supply the first adhesive and the second adhesive, so as to form the punched member having the first adhesive and the second adhesive applied on the first part and the second part.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 11, 2022
    Assignee: MITSUI HIGH-TEC, INC.
    Inventor: Takashi Maruyama
  • Patent number: 11469511
    Abstract: A waveguide microstrip line converter includes a waveguide, a dielectric substrate, a ground conductor including a slot, and a line conductor. The line conductor includes a first section that is a microstrip line having a first line width, a conversion unit that is a second section positioned immediately above the slot and having a second line width greater than the first line width, and a third section extending from the second section in a first direction and performing impedance matching between the first section and the second section. One of the opposite ends of the third section in the first direction is connected to the second section. The first section extends in a second direction perpendicular to the first direction continuously from the other end of the opposite ends of the third section.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 11, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takashi Maruyama, Shigeo Udagawa
  • Publication number: 20220318339
    Abstract: A graph information calculation apparatus according to the present disclosure includes: a memory storing instructions; and at least one processor configured to execute the instructions to: receive a graph as an input, calculate a neighborhood structure of a vertex constituting the graph, and calculate a first set having a vertex constituting the calculated neighborhood structure as an element; calculate a path having a vertex constituting the graph as an end point, and calculate a second set having a vertex constituting the calculated path as an element; and convert the first set and the second set into a vector.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 6, 2022
    Applicant: NEC Corporation
    Inventor: Takashi MARUYAMA
  • Publication number: 20220293825
    Abstract: The method of manufacturing an optical semiconductor device includes: a mounting step of placing an optical semiconductor chip on a package substrate made of ceramic; a storing step of storing the package substrate after the mounting step in a first dry atmosphere; a placing step of subjecting the optical semiconductor chip on the package substrate to a second dry atmosphere and placing a light transparent window on a joint portion of the package substrate with a joint material therebetween; and a sealing step of joining the joint portion and the light transparent window with the joint material in a low oxygen concentration atmosphere having an oxygen concentration of 1 vol % or less, thereby encapsulating the optical semiconductor chip in a confined space formed by the package substrate and the light transparent window.
    Type: Application
    Filed: September 18, 2020
    Publication date: September 15, 2022
    Applicant: DOWA Electronics Materials Co., Ltd.
    Inventors: Tsukasa MARUYAMA, Takashi ARAKI, Takehiro MIYAJI
  • Publication number: 20220292162
    Abstract: To provide an information processing device capable of surely calculating, from at least one of the known value of a conditional probability and a mutual relation of conditional probabilities, the range of values that designated conditional probabilities can take. The information processing device (500) includes a converting unit (510) and a calculating unit (520). The converting unit (510) converts conditional probabilities, which are the calculation target of the range of values that can be taken, into real number variables. The calculating unit (520) calculates, using, as constraint conditions, the real number first-order formula group obtained by converting a first set of first-order formulas and a second set of first-order formulas, the range of values that the converted real number variables can take.
    Type: Application
    Filed: August 9, 2019
    Publication date: September 15, 2022
    Applicant: NEC Corporation
    Inventors: Shota MOTOURA, Takashi MARUYAMA
  • Patent number: 11444912
    Abstract: A parameter value assignment device comprises: a memory storing instructions; and processors configured to execute the instructions to: input constraint information indicating constraints and parameter value information indicating parameter value conditions, as requirements related to value assignment to target parameters; decompose target parameters into unit blocks based on the requirements; decompose the constraints into constraints between the unit blocks based on a result of decomposition of the target parameters, and reorganize the constraints between the unit blocks; decompose the parameter value conditions into parameter value conditions for the unit blocks based on the result of decomposition of the target parameters into the unit blocks; and assign a value to each of the target parameters based on the result of decomposition of the target parameters into the unit blocks, the constraints between the unit blocks, and the parameter value conditions for the unit blocks.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: September 13, 2022
    Assignee: NEC CORPORATION
    Inventors: Takashi Maruyama, Takuya Kuwahara
  • Patent number: 11437734
    Abstract: This antenna device is provided with: a ground; strip lines that extend from positions facing each other with respect to the width direction of the ground; a plurality of slots which is provided to the ground and which intersects with straight lines along the strip lines; and branch lines which intersect with the slots that are positioned to face the branch lines in a back surface.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 6, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Jun Goto, Takashi Maruyama, Toru Fukasawa
  • Publication number: 20220267494
    Abstract: Provided is a monomer that improves solubility in organic solvents, hydrolyzability, and solubility in water after hydrolysis of a resin as well as imparts higher heat resistance to a resin.
    Type: Application
    Filed: June 18, 2020
    Publication date: August 25, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Akira EGUCHI, Kazuhiro UEHARA, Masayoshi FURUKAWA, Takashi MARUYAMA