Patents by Inventor Takuya Okada

Takuya Okada 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: 20250020131
    Abstract: An axial fan includes a plurality of blades, and a connection part. The plurality of blades are configured to rotate around a central axis defined by a fan shaft. The connection part is plate-like shaped, formed around the fan shaft, and connects, among the plurality of blades, blades that are adjacent to each other in a circumferential direction. The connection part includes a discontinuous part. The discontinuous part forms a stress distribution part that distributes stress imposed on the connection part when the plurality of blades rotate.
    Type: Application
    Filed: December 13, 2021
    Publication date: January 16, 2025
    Inventors: Katsuyuki YAMAMOTO, Takuya TERAMOTO, Kazuya OKADA, Koji YAMAGUCHI
  • Publication number: 20250006859
    Abstract: A nitride semiconductor light emitting element includes: an n-side semiconductor layer; a p-side semiconductor layer; an active layer positioned between the n-side semiconductor layer and the p-side semiconductor layer; and an electron blocking layer positioned between the p-side semiconductor layer and the active layer. The active layer includes, successively from the n-side semiconductor layer side: a first barrier layer containing Al, a first well layer that contains Al and emits ultraviolet light, a second barrier layer containing Al, and a second well layer that is in contact with the electron blocking layer, contains Al, and emits ultraviolet light. An Al composition ratio of the second well layer is higher than an Al composition ratio of the first well layer. A thickness of the second well layer is less than a thickness of the first well layer.
    Type: Application
    Filed: June 21, 2024
    Publication date: January 2, 2025
    Applicant: NICHIA CORPORATION
    Inventor: Takuya OKADA
  • Publication number: 20250006861
    Abstract: A nitride semiconductor light emitting element includes: an n-side semiconductor layer; a p-side semiconductor layer; and an active layer positioned between the n-side semiconductor layer and the p-side semiconductor layer. The active layer includes, successively from a n-side semiconductor layer side: a first barrier layer containing Al and an n-type impurity, a first well layer containing Al and emitting ultraviolet light, a second barrier layer containing Al, and a second well layer containing Al and emitting ultraviolet light. A highest n-type impurity concentration peak in the first barrier layer is located in a portion of the first barrier layer that is closer to the p-side semiconductor layer than to the n-side semiconductor layer. An Al composition ratio of the first barrier layer is higher than an Al composition ratio of the second barrier layer.
    Type: Application
    Filed: June 24, 2024
    Publication date: January 2, 2025
    Applicant: NICHIA CORPORATION
    Inventor: Takuya OKADA
  • Publication number: 20240390118
    Abstract: A three-dimensional scanner includes imaging circuitry configured to take an image of an object located at a focal position of a lens, a lens driver configured to drive the lens to make reciprocating motion in a linear direction, an angle detector configured to detect variation in angle of inclination of the lens with respect to a prescribed direction, and processing circuitry configured to control an operation of the lens in accordance with the variation in angle of inclination detected by the angle detector.
    Type: Application
    Filed: May 17, 2024
    Publication date: November 28, 2024
    Applicant: J. MORITA MFG. CORP.
    Inventors: Tsuyoshi TANAKA, Takuya OKADA, Takeshi HAYASHI
  • Patent number: 12134275
    Abstract: An inkjet recording device includes: an inkjet unit that ejects ink to a recording medium while scanning in a main scanning direction; a first treatment liquid ejection head that is arranged side by side with the inkjet unit in the main scanning direction, scans together with the inkjet unit, and ejects a first treatment liquid to the recording medium; and a second treatment liquid ejection head that is arranged side by side with the inkjet unit in the main scanning direction, scans together with the inkjet unit, and ejects a second treatment liquid different from the first treatment liquid to the recording medium, wherein at least one of the first treatment liquid ejection head and the second treatment liquid ejection head is arranged on both sides of the inkjet unit in the main scanning direction.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: November 5, 2024
    Assignee: Konica Minolta, Inc.
    Inventors: Takuya Ishigai, Keishi Suzuki, Takuya Okada
  • Publication number: 20240287019
    Abstract: The present invention provides a compound of formula (I): wherein R1, R2, R3, R4, k, l, m and n are as defined in the specification, or a pharmaceutically acceptable salt thereof with the effect of inhibiting T-type calcium channels and a medicament useful for the treatment of a disease associated with the activation of T-type calcium channels.
    Type: Application
    Filed: June 6, 2022
    Publication date: August 29, 2024
    Inventors: Atsufumi KAWABATA, Fumiko SEKIGUCHI, Naoki TOYOOKA, Takuya OKADA, Hiroyuki NISHIKAWA
  • Publication number: 20240279829
    Abstract: Provided are an iridium-manganese oxide composite material and an iridium-manganese oxide composite electrode material that are inexpensive and have high catalytic activity for use in an anode catalyst for oxygen evolution associated with water electrolysis. Also provided are methods for producing the same. An iridium-manganese oxide composite material includes a manganese oxide and iridium distributed on at least a surface of the manganese oxide, the iridium having a metal valence of 3.1 or greater and 3.8 or less. An iridium-manganese oxide composite electrode material includes a conductive substrate formed of a fiber, with the iridium-manganese oxide composite material being coated on at least a portion of the conductive substrate.
    Type: Application
    Filed: June 13, 2022
    Publication date: August 22, 2024
    Applicants: RIKEN, TOSOH CORPORATION
    Inventors: Ryuhei NAKAMURA, Shuang KONG, Ailong LI, Kazuna FUSHIMI, Kazumasa SUETSUGU, Takuya OKADA
  • Patent number: 12023730
    Abstract: The precision of grasping or controlling backpressure around a gas discharge portion in a stopper for continuous casting can be improved with a stopper for continuous casting which includes a cavity for conveying gas in a vertical direction center of the stopper, one or a plurality of gas discharge holes passing through from the cavity to the outside in a distal center or a side surface of a reduced-diameter region including a fitted portion to a lower nozzle, and a pressure control component in a part of an area above the gas discharge hole within the cavity.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 2, 2024
    Assignee: KROSAKIHARIMA CORPORATION
    Inventors: Shinichi Fukunaga, Toshio Kaku, Hiroki Furukawa, Takuya Okada
  • Patent number: 12023659
    Abstract: CHA-type zeolite in which the molar ratio of silica to alumina is less than 13, and the content of sodium is 100 ppm or more and 2000 ppm or less is provided. Such a CHA-type zeolite is obtained by a manufacturing method including obtaining a crystallized product by crystallizing a composition which includes a structure-directing agent source containing at least N,N,N-trialkylcyclohexylammonium cation, an alumina source, a silica source, a sodium source, and water and in which the molar ratio of silica to alumina is 20 or less and in which the molar ratio of potassium to sodium is less than 0.05, removing N,N,N-trialkylcyclohexylammonium cation from the crystallized product, and contacting the crystallized product with an ammonium-salt-containing solution having an ammonium concentration of 1 mass percent or more.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: July 2, 2024
    Assignee: TOSOH CORPORATION
    Inventors: Yoshitaka Yamasaki, Tomoya Ishikawa, Keita Nakao, Takuya Okada, Yusuke Naraki
  • Publication number: 20240191428
    Abstract: The image forming method of the present invention includes applying an ink and a first treatment liquid onto a fabric in a wet-on-wet manner to each other, the ink containing a pigment and a first resin, a first treatment liquid containing a second resin that reacts with or interacts with the first resin to aggregate. The viscosity of the first treatment liquid at 25° C. is lower than the viscosity of the ink at 25° C.
    Type: Application
    Filed: November 29, 2023
    Publication date: June 13, 2024
    Inventor: Takuya OKADA
  • Patent number: 12009454
    Abstract: A light-emitting device includes an n-side semiconductor layer comprising an n-type contact layer and an intermediate layer located on the n-type contact layer; an active layer located on the intermediate layer; and a p-side semiconductor layer located on the active layer. The intermediate layer includes at least one stacked portion comprising a first layer and a second layer. The first layer is an n-type nitride semiconductor layer comprising an n-type impurity, Al, and Ga. The second layer is a nitride semiconductor layer that includes Al and Ga, has a lower n-type impurity concentration than the first layer, and has a larger thickness than the first layer. An Al composition ratio of the first layer is higher than an Al composition ratio of the second layer.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: June 11, 2024
    Assignee: NICHIA CORPORATION
    Inventor: Takuya Okada
  • Patent number: 11965058
    Abstract: An oxymethylene-copolymer manufacturing method includes: polymerizing a polymerization raw material containing trioxane and a comonomer in the presence of an acid catalyst in a quantity that is 1.0×10?8 moles to 5.0×10?6 moles with respect to 1 mole of trioxane; adding a hydroxylamine compound represented by general formula (1) (in the formula, R1 and R2 are, independently of each other, a hydrogen atom or an organic group having 1-20 carbon atoms) to a reaction product obtained during the polymerizing of the polymerization raw material at 50-5000 times the quantity of the acid catalyst, in terms of the molar quantity, and mixing the hydroxylamine compound with the reaction product; and subjecting the mixture of the reaction product and the hydroxylamine compound, which is obtained during the adding of the hydroxylamine compound, to an additional melt-kneading.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 23, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuuta Yamamoto, Daisuke Sunaga, Takuya Okada
  • Publication number: 20240116075
    Abstract: A selective film deposition method includes exposing a substrate having a structure on which a first surface region containing a metal element and a second surface region containing a nonmetal inorganic material are both exposed, to a solution containing an organic substance represented by formula (1) shown below and a solvent to deposit a film of the organic substance on the first surface region selectively over the second surface region: R1(X)m (1) wherein R1 is a C4-C100 hydrocarbon group optionally containing a heteroatom or a halogen atom, and m hydrogen atoms of the hydrocarbon group are replaced with X; X is —PO3(R2)2, —O—PO3(R2)2, —CO2R2, —SR2, or —SSR1; each R2 is a hydrogen atom or a C1-C6 alkyl group; and m is a positive integer, and m/r is 0.01 to 0.25 where r is the number of carbons of the hydrocarbon group.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Takuya OKADA, Junki YAMAMOTO, Takahisa TANIGUCHI, Kazuki YOSHIURA, Katsuya KONDO, Soichi KUMON, Tatsuo MIYAZAKI
  • Patent number: 11898033
    Abstract: An oxymethylene copolymer resin composition, which includes (i) an oxymethylene copolymer, (ii) a derivative of an aryl boron fluoride compound, and (iii) a layered double hydroxide; and a method for producing the same.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: February 13, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takuya Okada, Daisuke Sunaga
  • Patent number: 11876148
    Abstract: A nitride semiconductor light-emitting element includes: an n-side nitride semiconductor layer; a p-side nitride semiconductor layer; and an active layer between the n-side nitride semiconductor layer and the p-side nitride semiconductor layer. The active layer includes: one or more well layers comprising a first well layer that is nearest to the n-side nitride semiconductor layer, and one or more barrier layers comprising a first barrier layer between the first well layer and the n-side nitride semiconductor layer. The first barrier layer comprises a Si-doped InGaN barrier layer and an undoped GaN barrier layer in this order from the n-side nitride semiconductor layer side.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: January 16, 2024
    Assignee: NICHIA CORPORATION
    Inventor: Takuya Okada
  • Publication number: 20230374669
    Abstract: The present disclosure provides a wet etching method including pretreating a metal-containing film on a substrate with a surface modification liquid and etching the metal-containing film with an etching liquid, wherein the etching liquid is a solution containing: a ?-diketone with a trifluoromethyl group bonded to a carbonyl group; and an organic solvent, wherein the metal-containing film contains a metal element capable of forming a complex with the ?-diketone, wherein the surface modification liquid contains an acidic substance against the metal element, and wherein the wet etching method is carried out through: a first step of bringing the surface modification liquid into contact with the metal-containing film, thereby forming an oxide layer of the metal element at a surface of the metal-containing film; and a second step of bringing the etching liquid into contact with the metal-containing film on which the oxide layer has been formed.
    Type: Application
    Filed: October 11, 2021
    Publication date: November 23, 2023
    Inventors: Kazuki YOSHIURA, Takuya OKADA, Kenta WATANABE, Soichi KUMON, Yosuke NAKAMURA, Takahisa TANIGUCHI
  • Publication number: 20230333303
    Abstract: Provided is a light guide including: a base that has a first reflecting surface and a second reflecting surface and that propagates incident video light; and a plurality of half mirrors, each of which has a first surface and a second surface and is configured to include a dielectric multi-layer film, in which the plurality of half mirrors are disposed in the base such that the half mirrors are spaced from each other, the base and the plurality of half mirrors are configured such that the video light made incident into the base is incident on each of the first surface and the second surface of at least one of the plurality of half mirrors one or more times, and refractive indices of two outermost layers of the dielectric multi-layer film are 0.90n to 1.15n in a case in which a refractive index of the base is n.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Katsuhiko ONO, Hiroki TAKAHASHI, Takuya OKADA
  • Patent number: 11713029
    Abstract: The present invention obtains a hydraulic pressure control unit capable of saving a space where a device can be mounted in a straddle-type vehicle. In the hydraulic pressure control unit according to the present invention, a controller includes a brake control section that controls operation of a component for controlling a brake hydraulic pressure generated in the straddle-type vehicle, and the brake control section is accommodated in a case that is held by a base body. The controller further includes a power control section that controls operation of a power generator for the straddle-type vehicle, and the power control section is accommodated together with the brake control section in the case.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 1, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Jun Ohtaka, Takuya Okada
  • Publication number: 20230231079
    Abstract: A light emitting element comprises a semiconductor structure which includes an n-side layer, a p-side layer, and an ultraviolet light emitting active layer positioned between the n-side layer and the p-side layer, each being made of a nitride semiconductor, an n-electrode electrically connected to the n-side layer, and a p-electrode electrically connected to the p-side layer. The active layer has a well layer containing Al, a barrier layer containing Al, and holes defined by the lateral faces of the well layer and the lateral faces of the barrier layer. The p-side layer has a first layer containing Al, a second layer containing Al disposed on the first layer and in contact with the lateral faces of the well layer, and a third layer disposed on the second layer. The third layer is smaller in thickness than the first layer.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 20, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Koji ASADA, Takuya OKADA
  • Patent number: 11692303
    Abstract: The pretreatment liquid of the present invention is applicable for a fabric to be used for inkjet textile printing, and the pretreatment liquid contains a block copolymer including a hydrophobic block derived from a hydrophobic resin having an SP value of less than 11 and a hydrophilic block derived from a hydrophilic resin having an SP value of 11 or more, with the difference between the SP values of the hydrophobic resin and the hydrophilic resin of 1.0 or more; and water.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: July 4, 2023
    Assignee: KONICA MINOLTA, INC.
    Inventors: Ken Nito, Takuya Okada, Masaki Nakamura