Patents by Inventor Hiroyuki Okamoto

Hiroyuki Okamoto 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: 20230023104
    Abstract: A totally aerated combustion burner has a combustion plate part through which an air-fuel mixture is ejected. The combustion plate part includes: an air-fuel mixture permeable body made from metallic fibers to allow the air-fuel mixture to pass therethrough; and a distribution plate having formed therein a multiplicity of distribution holes and being stacked on a back surface of the air-fuel mixture permeable body. An air-fuel mixture permeable body is constructed by laminating a plurality of metallic-fiber woven bodies which are woven by metallic-fiber threads obtained by bundling a plurality of metallic fibers relatively large in diameter. These metallic-fiber woven bodies are laminated such that a part of meshes in one metallic-fiber woven body overlaps a portion other than meshes in another metallic-fiber woven body, said one metallic-fiber woven body and said another metallic-fiber woven body that lies adjacent to each other in the laminating direction.
    Type: Application
    Filed: June 21, 2022
    Publication date: January 26, 2023
    Applicants: RINNAI CORPORATION, BEST CORPORATION
    Inventors: Masaru Takeuchi, Hiroyuki Okamoto, Yusuke Nakagawa
  • Patent number: 11519061
    Abstract: A steel sheet includes: a predetermined chemical composition; and a steel structure represented by, in area %, first martensite in which two or more iron carbides each having a circle-equivalent diameter of 2 nm to 500 nm are contained in each lath: 20% to 95%, ferrite: 15% or less, retained austenite: 15% or less, and the balance: bainite, or second martensite in which less than two iron carbides each having a circle-equivalent diameter of 2 nm to 500 nm are contained in each lath, or the both of these, in which the total area fraction of ND//<111> orientation grains and ND//<100> orientation grains is 40% or less, and the content of solid-solution C is 0.44 ppm or more.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 6, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Riki Okamoto, Hiroyuki Kawata, Masafumi Azuma, Akihiro Uenishi, Naoki Maruyama
  • Patent number: 11522606
    Abstract: It is an object to enable offline measurement with a high SN ratio of the phase of scattered light of an optical fiber to be measured in an optical receiving system for real-time measurement (direct measurement). The phase measurement method according to the present invention performs coherent detection of scattered light using a 90-degree optical hybrid, obtains an estimated quadrature component value by averaging a measured quadrature component value that is directly measured and a calculated quadrature component value obtained by Hilbert transforming a measured in-phase component value that is directly measured, obtains an estimated in-phase component value by averaging the measured in-phase component value and a calculated in-phase component value obtained by inverse Hilbert transforming the measured quadrature component value, and calculates the phase of scattered light based on the estimated quadrature component value and the estimated in-phase component value.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: December 6, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yoshifumi Wakisaka, Daisuke Iida, Keiji Okamoto, Hiroyuki Oshida
  • Publication number: 20220372387
    Abstract: Provided is a lubricant composition including a bicyclic liquid crystal of formula (1), and a tricyclic liquid crystal compound of formula (2), and having a mixing mass ratio of the bicyclic liquid crystal compound and tricyclic liquid crystal compound of 95:5 to 15:85. The composition is suitable for use in a clean environment, under a high vacuum, under high temperature and a bearing. R1 and R2 are the same or different from each other, and each is —OCH2CH2CH(R?)CH2CH2OR R11 and R21 are the same or different from each other, and each is —OR. R12, R13, R22 and R23 are the same or different from each other, and each is hydrogen or —OR. R is a linear or branched CnH2n+1, 1?n?20 and R? is methyl or ethyl.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 24, 2022
    Applicants: UNIVERSITY OF YAMANASHI, NIPPON THOMPSON CO., LTD., Ushio Chemix Corporation
    Inventors: Yuichiro Haramoto, Shigemasa Itabashi, Ayana Takemura, Kazuo Okamoto, Hiroyuki Otsuki
  • Patent number: 11505248
    Abstract: A subframe structure includes a pair of left and right front-rear frames each mounted with a lower arm; and a transverse member connecting front portions of the front-rear frames. The front-rear frames each includes a rear horizontal portion formed substantially horizontally, an inclined portion extending frontward and upward from a front end of the rear horizontal portion, and a front horizontal portion extending horizontally frontward from a front end of the inclined portion. The transverse member is jointed at left and right ends thereof to the front horizontal portions respectively corresponding to the left and right ends, a rear end of the front horizontal portion is disposed to be positioned frontward of a front end of an engine, and the front-rear frames are deformed into a Z shape in vehicle side view in an event of a front-end collision and thereby energy of the front-end collision is absorbed.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 22, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki Okamoto, Fumihiro Kurohara, Ippei Kuroda, Hiromasa Honji, Yosuke Sawada
  • Publication number: 20220364009
    Abstract: Provided are a lubricant composition which is advantageous in that, when applied to a contact area of metal parts, the lubricant composition can suppress generation of rust and can exhibit excellent lubricating performance, and a bearing the lubricant composition having sealed therein. A lubricant composition comprising at least one dicyclic liquid crystal compound represented by the following formula (1), at least one tricyclic liquid crystal compound represented by the following formula (2), and halogen ions, wherein the content of the halogen ions in the lubricant composition is 1 to 900 ppm.
    Type: Application
    Filed: August 11, 2020
    Publication date: November 17, 2022
    Applicants: NIPPON THOMPSON CO., LTD., Ushio Chemix Corporation
    Inventors: Kazuo Okamoto, Hiroyuki Otsuki, Shigemasa Itabashi, Ayana Takemura
  • Publication number: 20220364846
    Abstract: The present invention intends to provide an optical fiber cable sensing apparatus capable of measuring longitudinal directional distribution of curvature and torsion, without using a specially structured optical fiber sensor. This apparatus includes means for inputting data of longitudinal directional distribution of distortion (bending loss, polarization variation) measured for each optical fiber accommodated in an optical fiber cable to be measured and data indicating the position of each measurement object optical fiber on a cable cross section, means for calculating curvature vector ? of the optical fiber cable to be measured, at the same spot, based on the distortion (bending loss, polarization variation) of each optical fiber at the spot and the position of the optical fiber on the cable cross section, and means for calculating torsion ? of the optical fiber cable to be measured at the spot from the calculated curvature vector ?.
    Type: Application
    Filed: September 3, 2019
    Publication date: November 17, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke IIDA, Keiji OKAMOTO, Hiroyuki OSHIDA
  • Patent number: 11491893
    Abstract: Provided is a method for controlling a fuel cell vehicle capable of informing a user outside of the vehicle of the possibility that the fuel stops power generation and external power-feeding stops, whereby problems due to unexpected stopping of power feeding can be avoided. In a method for controlling a fuel cell vehicle 100 including an external power-feeding device 50, when it is determined that a state of a fuel cell exceeds a limiting point where deterioration of the fuel cell 20 or a failure of a driving device to supply fuel to the fuel cell 20 occurs during external power feeding, warning is issued to outside of the vehicle 10 before the fuel cell 20 stops power generation.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 8, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yohei Okamoto, Hiroyuki Imanishi, Mitsuhiro Nada, Takashi Yamada
  • Patent number: 11486791
    Abstract: The present invention is to provide a backscattered light amplification device, an optical pulse test apparatus, a backscattered light amplification method, and an optical pulse test method for amplifying a desired propagation mode of Rayleigh backscattered light with a desired gain by stimulated Raman scattering in a fiber under test having the plurality of propagation modes. The backscattered light amplification device according to the present invention is configured to control individually power, incident timing, and pulse width of a pump pulse for each propagation mode when the pump pulse is incident in a plurality of propagation modes after the probe pulse is input to the fiber under test in any propagation mode.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keiji Okamoto, Atsushi Nakamura, Hiroyuki Oshida
  • Patent number: 11478885
    Abstract: A method of manufacturing a medical device including a case having a first and a second case portion mated together. The case having a space inside and an elastic membrane attached to the case. A first housing space covered by the first case portion and a second housing space covered by the second case portion. Fixing parts at peripheries of the first and the second case portions and at which the first and the second case portions are mated. Holding surfaces at the peripheries of the first and the second case portions. A sealing part at the periphery of the first or the second ease portions with respect to the fixing parts and that seals an entirety of the peripheral edge of the elastic membrane. Forming an air gap between the sealing part and the fixing parts by depressurization or heating the fixing parts that connect the case portions.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 25, 2022
    Assignee: Nikkiso Company Limited
    Inventors: Shingo Okamoto, Hiroyuki Kawajiri, Kosei Nishida
  • Publication number: 20220334648
    Abstract: The wearable information processing apparatus according to the present disclosure includes projecting means for projecting an operation screen on a field of vision of a user through the information processing apparatus, wherein the projected operation screen has first and second modes, and wherein an operation screen displayed in the second mode has a smaller size than an operation screen displayed in the first mode, or the operation screen displayed in the second mode is displayed nearer to the field of vision of the user than the operation screen displayed in the first mode.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Inventor: Hiroyuki Okamoto
  • Patent number: 11473646
    Abstract: The bushing includes an outer cylinder, an inner cylinder, and an elastic body therebetween. The outer cylinder has a central recess portion formed in a curved shape. The inner cylinder has a central convex portion being formed in a curved shape. A distance between a vertex of the central recess portion and the vertex of the central convex portion is smaller than a distance between a point other than the vertex of the central recess portion and a point at which a straight line extending from the point other than the vertex of the central recess portion to an intersection point of the perpendicular line and the axis of the inner cylinder intersects the central convex portion.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: October 18, 2022
    Assignees: MAZDA MOTOR CORPORATION, MOLTEN CORPORATION
    Inventors: Susumu Sano, Takahiko Shigyo, Hiroki Kimura, Masaya Hiramatsu, Haruaki Iseri, Kazuhiro Okuyama, Hiroyuki Okamoto, Eiji Okada, Naoki Kurata, Hiromi Miwade, Tadashi Yoshimura, Ryo Ogawa, Tomohiro Tuji, Masayuki Mochizuki
  • Publication number: 20220326005
    Abstract: The present disclosure provides a device that accurately measures vibration at a designated position of a sensing fiber without using digital signal processing to compensate for distance fluctuation. Digital signal processing for correcting fluctuation of a measurement distance due to a frequency offset of a beat signal due to vibration, which is a measurement target, is simplified. In the present disclosure, vibration at a designated position of the sensing fiber is accurately measured without using the digital signal processing to compensate for the distance fluctuation. A spectrum analysis length of an electrical field E(?n) of backscattered light is set to be larger than a delay deviation Nd due to frequency modulation caused by dynamic strain. An index of tolerance of vibration distribution measurement to the delay deviation Nd is also clarified.
    Type: Application
    Filed: February 13, 2020
    Publication date: October 13, 2022
    Inventors: Tatsuya Okamoto, Daisuke Iida, Hiroyuki Oshida
  • Patent number: 11465684
    Abstract: A front suspension apparatus in which a front side of a suspension arm can be cut off from a subframe at the time of a small overlap collision without a complication of structure and formability. A front suspension apparatus in which a lower arm from which a front wheel is suspended is provided, and a front arm portion and a rear arm portion of the lower arm are axially supported by axially supporting portions of a subframe is characterized in that an axially supporting portion of the front arm portion is joined to the subframe at a joined portion extending in a vehicle width direction, a joined portion extending in an up-down direction, and a joined portion extending in a front-rear direction, and a joining strength of a joined portion in the front-rear direction is lower than a joining strength of the joined portion in the up-down direction.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: October 11, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki Okamoto, Fumihiro Kurohara, Ippei Kuroda, Yasunori Takahara
  • Patent number: 11467060
    Abstract: An optical pulse test apparatus according to the present disclosure includes a light generation unit configured to generate an optical pulse for generating backscattered light beams in an optical fiber under test and generate first light having an optical frequency for amplifying backscattered light in an LP11 mode out of the backscattered light beams in two LP modes through stimulated Brillouin scattering, and second light having an optical frequency for attenuating backscattered light in an LP01 mode out of the backscattered light beams in the two LP modes through stimulated Brillouin scattering, a mode demultiplexing unit configured to input the optical pulse, the first light, and the second light generated by the light generation unit into the optical fiber under test in the LP01 mode and separate, out of the backscattered light beams generated by the optical pulse, the backscattered light in the LP11 mode, a local oscillation light generation unit configured to generate local oscillation light by which t
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 11, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi Nakamura, Keiji Okamoto, Hiroyuki Oshida
  • Publication number: 20220319066
    Abstract: An image processing device includes: an information acquisition unit configured to acquire outside information including color information of outside of a vehicle; an image generation unit configured to generate, based on the outside information, a first image in which a difference in the color information with respect to the outside of the vehicle is within a predetermined range; and an output unit configured to output the first image to a display provided in a cabin of the vehicle.
    Type: Application
    Filed: August 2, 2019
    Publication date: October 6, 2022
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Mai Okamoto, Hiroyuki Kikuchi
  • Patent number: 11463163
    Abstract: The purpose of the present invention is to provide a device for optical frequency domain reflectometry and a method thereof that can measure a reflectance distribution with less spatial resolution degradation due to a phase noise, without using a wideband receiving system even when a long-distance measurement is performed.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 4, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya Okamoto, Daisuke Iida, Hiroyuki Oshida
  • Patent number: 11456269
    Abstract: A method of fabricating a connection structure is disclosed. The method includes providing a substrate that has a top surface and includes a set of pads for soldering, each of which has a pad surface exposed from the top surface of the substrate. The method also includes applying a surface treatment to a part of the top surface of the substrate close to the pads and the pad surface of each pad so as to make at least the part of the top surface and the pad surfaces of the pads rougher. The surface treatment includes sandblasting.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 27, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Risa Miyazawa, Takahito Watanabe, Hiroyuki Mori, Keishi Okamoto
  • Patent number: 11447848
    Abstract: A steel sheet wherein a steel structure of an inside of the steel sheet contains, by volume fraction, soft ferrite: 0% to 30%, retained austenite: 3% to 40%, fresh martensite: 0% to 30%, a sum of pearlite and cementite: 0% to 10%, and a remainder including hard ferrite. In the steel sheet, in a ? to ? thickness range, a proportion of retained austenite having an aspect ratio of 2.0 or more is 50% or more, and a soft layer having a thickness of 1 to 100 ?m from a surface in a sheet thickness direction is present. When an emission intensity at a wavelength indicating Si is analyzed in the sheet thickness direction from the surface by a radio-frequency glow discharge analysis method, a peak of the emission intensity appears in a range of more than 0.2 ?m and 5.0 ?m or less from the surface.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 20, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takafumi Yokoyama, Kohichi Sano, Riki Okamoto, Hiroyuki Kawata, Eisaku Sakurada, Yuji Yamaguchi, Kazuki Shiokawa, Yuichi Nakahira, Kohei Ueda, Masahiro Nakata, Satoshi Uchida
  • Patent number: 11447711
    Abstract: This is to provide an electrically-conductive lubricant having characteristics in combination that it shows liquid crystallinity in a wide temperature range, retains low dynamic friction coefficient, has electrical-conductivity, has almost no loss due to evaporation, decomposition and the like, has a clean appearance, and emits fluorescence, and can find deterioration or leakage immediately. This electrically-conductive lubricant comprises at least one kind of the compound (1) represented by the formula (1): 12:8 wherein, R11 and R21 are the same or different from each other, and each is hydrogen or a group —OCH2CH2CH(R?)CH2CH2OR (R is a linear or branched CnH2n+1, 4?n?12, and R? is methyl or ethyl), and R12, R13, R22 and R23 are the same or different from each other, and each is a group —OCH2CH2CH(R?)CH2CH2OR (R is a linear or branched CnH2n+1, 4?n?12, and R? is methyl or ethyl)].
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 20, 2022
    Assignees: UNIVERSITY OF YAMANASHI, NIPPON THOMPSON CO., LTD., Ushio Chemix Corporation
    Inventors: Yuichiro Haramoto, Shigemasa Itabashi, Ayana Takemura, Kazuo Okamoto, Hiroyuki Otsuki