Patents by Inventor Koji Yamamoto

Koji Yamamoto 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: 11225889
    Abstract: A silencer is equipped with a hollow tubular portion in which a discharge flow passage is formed that communicates on one end side thereof with a discharge port of a fluid pressure device (ejector) through which a pressure fluid is discharged, a cap member attached to another end part of the tubular portion, a sound absorbing member attached to an inner wall surface of the tubular portion, and a plurality of discharge ports adapted to discharge the pressure fluid, which has passed through the discharge flow passage in an axial direction of the tubular portion, in radial directions perpendicular to the axial direction.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: January 18, 2022
    Assignee: SMC CORPORATION
    Inventors: Toru Nakayama, Koji Sugano, Masayuki Enomoto, Masayoshi Yamamoto
  • Patent number: 11221197
    Abstract: A gas generator including a housing, an igniter disposed inside the housing, a combustion chamber accommodating the igniter, a gas discharge port provided in the housing, and a filter having a cylindrical shape and disposed between the combustion chamber and the gas discharge port. The filter is positioned inside the housing such that a portion of at least one end surface of two end surfaces in an axial direction of the filter is supported by contact, an outer area positioned outward in a radial direction of the portion that is supported by contact is adjacent to a predetermined space, and a predetermined outer peripheral area of an outer peripheral surface of the filter near the at least one end surface is supported by contact. According to such a configuration, it is possible to suppress a short path of combustion gas in a gas generator equipped with a filter.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: January 11, 2022
    Assignee: DAICEL CORPORATION
    Inventor: Koji Yamamoto
  • Publication number: 20210405036
    Abstract: A method of fabricating a substrate for analysis fixes antibodies that specifically react with specific antigens included in detection target substances to the substrate for analysis. The method subjects the substrate for analysis to immersion treatment with a predetermined treatment solution so as to form antibody aggregations in which the antibodies are aggregated at boundary regions between recesses and convex portions on the substrate for analysis. The method causes the antigens and the antibodies to react with each other so as to capture the detection target substances on the substrate for analysis by the antibody aggregations.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Inventors: Koji TSUJITA, Makoto ITONAGA, Masayuki ONO, Atsushi SAITO, Shigehiko IWAMA, Katsue HORIKOSHI, Yuichi HASEGAWA, Masahiro YAMAMOTO
  • Publication number: 20210405491
    Abstract: A display device includes wires that are coupled to driver terminals that are able to be coupled to a driver integrated circuit (IC) and that are provided along a first direction and extending so as to spread toward outsides in the first direction as the wires are directed toward a second direction orthogonal to the first direction; and dummy wires that are provided along the wires on one outside and another outside in the first direction of the wires and that are not coupled to the driver terminals and the wires, wherein a number of the dummy wires on the one outside and a number of the dummy wires on the other outside are respectively three or more, the dummy wires extend in parallel with the wires, and a width of the dummy wire is equal to a width of the wire.
    Type: Application
    Filed: September 14, 2021
    Publication date: December 30, 2021
    Applicant: Japan Display Inc.
    Inventors: Koji YAMAMOTO, Naoyuki OBINATA, Kengo SHIRAGAMI
  • Patent number: 11208072
    Abstract: An ejector for ejecting a combustion product including, an igniter including an ignition charge and an ignition portion, a pyrotechnic agent, and a cup made of metal, the cup including a bottom surface and a peripheral wall, the peripheral wall being contiguous with a peripheral edge of the bottom surface and disposed to surround the ignition portion, the cup further including an accommodating space accommodating therein the pyrotechnic agent, the bottom surface of the cup including a through hole being defined by a plurality of through-hole peripheral edges, and the adjacent through-hole peripheral edges being connected together at a predetermined connection point, and the through hole including a narrow part, in which a width of the through hole defined by each of parts of the two through-hole peripheral edges of the plurality of through-hole peripheral edges decreases gradually with an increasing distance from a center of the bottom surface toward the peripheral edge of the bottom surface, and the narrow p
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 28, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Koji Yamamoto, Mikio Yabuta
  • Publication number: 20210399681
    Abstract: A photovoltaic apparatus includes: a support mechanism including a mount having a shaft body serving as a rotation shaft when tracking the sun, and a drive part configured to drive the shaft body; an array formed on the mount by arranging solar cell modules; and an outer frame portion provided along an outer end surface, of the array, parallel to a central axis direction of the shaft body and located at a position where wind blowing toward the outer end surface initially hits.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 23, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kitae HIRAYAMA, Hiroyuki KONAKA, Koji MORI, Masataka KOBAYASHI, Seiji YAMAMOTO
  • Patent number: 11203803
    Abstract: A steel with high hardness and excellent toughness contains, in mass %, 0.55-1.10% C, 0.10-2.00% Si, 0.10-2.00% Mn, 0.030% or less P, 0.030% or less S, 1.10-2.50% Cr, and 0.010-0.10% Al, with the balance consisting of Fe and unavoidable impurities. The structure of the steel after quenching is a dual phase structure of martensitic structure and spheroidized carbide. Spheroidized cementite particles with an aspect ratio of 1.5 or less constitute at least 90% of all cementite particles. The proportion of the number of spheroidized cementite particles on the prior austenite grain boundaries to a total number of cementite particles is 20% or less.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: December 21, 2021
    Assignees: OSAKA UNIVERSITY, KOMATSU LTD.
    Inventors: Yoritoshi Minamino, Takemori Takayama, Koji Yamamoto, Yusuke Hiratsuka
  • Patent number: 11206630
    Abstract: There is provided an information processing system including a relative-position estimation processing unit configured to estimate a relative position between an access point and a wireless client by using a cooperative position estimation method using distance information based on a signal strength between the access point and the wireless client; and an inside/outside determination processing unit configured to determine an inside/outside positional relationship between a polygonal target area formed by access points and the wireless client, in which the inside/outside determination processing unit determines whether the wireless client is present inside or outside the target area by determining a direction of vector product of the access points forming a side of the target area and a direction of vector product of the wireless client and the access point as a vertex of the polygonal area.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: December 21, 2021
    Assignees: KYOTO UNIVERSITY, ALLIED TELESIS HOLDINGS K.K.
    Inventors: Noriyasu Katoh, Koji Yamamoto, Shotaro Kamiya
  • Publication number: 20210381481
    Abstract: An ion current detection circuit is for detecting an ion current flowing through a spark plug for an internal combustion engine. A detection terminal is to be electrically connected to the spark plug. A reference potential is to be supplied to a reference terminal. At least one protection diode is provided between the detection terminal and the reference terminal. A current detection unit causes a detection current to flow between the detection terminal and the at least one protection diode. A current compensation unit causes a compensation current to flow between the detection terminal and the at least one protection diode.
    Type: Application
    Filed: December 25, 2018
    Publication date: December 9, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventor: Koji YAMAMOTO
  • Patent number: 11192519
    Abstract: Provided is a gas generator including the housing with a gas discharge port. The housing has a circular shape and includes a top plate, a bottom plate, and a peripheral wall, the housing having a ratio of an axial length L to an outer diameter D satisfying L/D?1.1. The gas discharge port includes first opening portions having low burst pressure (P1) of the closing member and second opening portions having burst pressure (P2) higher than the burst pressure (P1).
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 7, 2021
    Assignee: DAICEL CORPORATION
    Inventor: Koji Yamamoto
  • Patent number: 11173868
    Abstract: A gas generator including an igniter, a combustion chamber, and a restriction part, the igniter including an accommodating chamber accommodating an explosive therein, an ignition portion provided in the accommodating chamber, and a separating part including a pressure receiving surface, the separating part being configured to be separable from the igniter and movable in a predetermined direction, the combustion chamber being configured to burn a gas generating agent filled outside the accommodating chamber, by the combustion of the explosive, the restriction part provided in a predetermined position in the predetermined direction from the igniter and restricting a movement of the separating part, and the separating part including a guide that directs the combustion product of the explosive by the pressure receiving surface toward the igniter, in a state where the movement of the separating part in the predetermined direction is restricted by the restriction part.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: November 16, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Koji Yamamoto, Mikio Yabuta
  • Patent number: 11169023
    Abstract: An optical measuring device includes a light measurement unit, an acceleration sensor for detecting the acceleration of the optical measuring device, a storage for storing reference data obtained from the light measurement unit by measuring light from a reference object at a first timing and storing the acceleration detected by the acceleration sensor as history information, a first determination unit for determining whether the result of comparison between measurement data obtained from the light measurement unit by measuring light from the reference object at a second timing later than the first timing and the reference data satisfies a first malfunction condition, a second determination unit for determining whether the acceleration included in the history information satisfies a second malfunction condition, and an output unit for outputting that the optical measuring device malfunctions when the first malfunction condition and the second malfunction condition are satisfied.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: November 9, 2021
    Assignee: Konica Minolta, Inc.
    Inventors: Koji Yamamoto, Masahiko Sakimoto, Naoki Sagisaka, Akihiro Okayama, Satoshi Yokota, Norimasa Kubota
  • Patent number: 11162162
    Abstract: A steel with high hardness and excellent toughness contains, in mass %, 0.40-1.00% C, 0.10-2.00% Si, 0.10-1.00% Mn, 0.030% or less P, 0.030% or less S, 1.10-3.20% Cr, 0.010-0.10% Al, and 0.15-0.50% V, and further contains at least one or two of 2.50% or less Ni and 1.00% or less Mo, with an amount of (C+V) being 0.60% or more in mass %, with the balance consisting of Fe and unavoidable impurities. The steel has a microstructure which is a martensitic structure with finely dispersed Fe-based ? carbides, with its prior austenite grain size being 20 ?m or less.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 2, 2021
    Assignees: OSAKA UNIVERSITY, KOMATSU LTD.
    Inventors: Yoritoshi Minamino, Koji Hagihara, Koji Yamamoto, Shohei Ikurumi, Yusuke Hiratsuka, Takeshi Fujimatsu, Toshiyuki Sugimoto
  • Patent number: 11159141
    Abstract: An acoustic wave device includes a high-acoustic-velocity film, a piezoelectric layer provided directly or indirectly on the high-acoustic-velocity film, an IDT electrode provided on the piezoelectric layer, and a dielectric film provided on the piezoelectric layer to cover the IDT electrode. An acoustic velocity of bulk waves propagating through the high-acoustic-velocity film is higher than an acoustic velocity of acoustic waves propagating through the piezoelectric layer. The dielectric film includes a material including hydrogen atoms.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: October 26, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Yamamoto, Tsutomu Takai, Hideaki Takahashi
  • Patent number: 11137234
    Abstract: A gas generator including, an igniter, a housing made of metal and including a gas discharge port and a combustion chamber for burning a solid gas generating agent, the solid gas generating agent being filled at a position where the solid gas generating agent can be burned by actuation of the igniter, and the housing being configured to accommodate the igniter and an isolating member including an isolating wall interposed, inside the housing, between the gas generating agent disposed in the combustion chamber and a bottom surface and a side surface of the combustion chamber, the isolating wall being made from a predetermined resin material and being in contact with the gas generating agent to apply a predetermined holding force to the gas generating agent.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 5, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Koji Yamamoto, Mikio Yabuta
  • Patent number: 11119372
    Abstract: A third metal wire, a common power supply line, a sensor power supply line, a selector switch 58, and a shield portion are provided. The third metal wire is provided on a first sensor electrode formed in a display region of an array substrate. The common power supply line and the sensor power supply line are provided in a peripheral region of the array substrate. The selector switch 58 is configured to supply either DC common voltage or AC sensor voltage to the first sensor electrode. The shield portion has a mesh shape. The shield portion is provided above the sensor power supply line. The shield portion is formed using the same material as the third metal wire.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 14, 2021
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Hiroyuki Abe, Naoki Miyanaga
  • Patent number: 11089225
    Abstract: An optical measuring device comprises: a lens to form an image with reflected light from a measuring object; an image sensor to receive the reflected light that has passed through the lens and generate an image representing the measuring object; a driver to drive a drive object, the drive object being at least one of the lens and the image sensor; and a controller to control the optical measuring device. The controller acquires, from the image sensor, a plurality of images generated by the image sensor successively imaging the measuring object while the driver is driving the drive object in accordance with a predetermined driving pattern, and outputs the plurality of images.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 10, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Koji Yamamoto, Satoshi Yokota, Norimasa Kubota, Yoshihisa Abe, Yuta Yamanoi, Masaaki Chigasaki, Osamu Toyama
  • Publication number: 20210190463
    Abstract: A gas generator including a housing, an igniter disposed inside the housing, a combustion chamber accommodating the igniter, a gas discharge port provided in the housing, and a filter having a cylindrical shape and disposed between the combustion chamber and the gas discharge port. The filter is positioned inside the housing such that a portion of at least one end surface of two end surfaces in an axial direction of the filter is supported by contact, an outer area positioned outward in a radial direction of the portion that is supported by contact is adjacent to a predetermined space, and a predetermined outer peripheral area of an outer peripheral surface of the filter near the at least one end surface is supported by contact. According to such a configuration, it is possible to suppress a short path of combustion gas in a gas generator equipped with a filter.
    Type: Application
    Filed: April 26, 2019
    Publication date: June 24, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Koji YAMAMOTO
  • Publication number: 20210183909
    Abstract: To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film. The light shielding film is formed to overlap with the semiconductor layer and has a wider area than the semiconductor layer. This results in having a gate covering the semiconductor layer from an upper side and a back gate covering the semiconductor layer from a lower side, so that the sensitivity can be maintained high irrespective of decreasing the electrostatic protection circuit in dimension.
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Inventors: Koji YAMAMOTO, Tatsuya Ishii
  • Publication number: 20210154633
    Abstract: A gas generator including a first igniter, a second igniter, a partition wall that partitions inside a housing into a first space that contains a first gas generating agent and a second space that contains a second gas generating agent, and an inner cylindrical member that houses the first igniter and includes a communication portion at a first end portion, the gas generator further including a closing member that closes a third space that is formed between an inner wall surface of the inner cylindrical member and an outer wall surface of the fixing portion and that connects the communication portion with the first space, the closing member being inhibited from deforming due to pressure from a side of the first space and allowing deformation due to pressure from a side of the third space that negates a closed state between the first space and the third space.
    Type: Application
    Filed: May 21, 2019
    Publication date: May 27, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Koji YAMAMOTO