Patents by Inventor Hiroshi Yokota

Hiroshi Yokota 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: 10662496
    Abstract: Disclosed is a high-strength steel sheet having a tensile strength (TS) of 780 MPa or more and excellent in ductility, fatigue properties, balance between high strength and ductility, surface characteristics, and sheet passage ability that can be obtained by providing a predetermined chemical composition and a steel microstructure that contains, by area, 20-50% of ferrite, 5-25% of bainitic ferrite, and 5-20% of martensite, and that contains, by volume, 10% or more of retained austenite, in which the retained austenite has a mean grain size of 2 ?m or less, a mean Mn content in the retained austenite in mass % is at least 1.2 times the Mn content in the steel sheet in mass %, and the retained austenite has a mean free path of 1.2 ?m or less.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 26, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Hiroshi Matsuda, Kazunori Tahara, Takeshi Yokota, Kaneharu Okuda, Kazuhiro Seto
  • Patent number: 10662495
    Abstract: Disclosed is a high-strength steel sheet having a tensile strength (TS) of 780 MPa or more and excellent in ductility, fatigue properties, stretch flangeability, surface characteristics, and sheet passage ability that can be obtained by providing a predetermined chemical composition and a steel microstructure that contains, by area, 20-50% of ferrite, 5-25% of bainitic ferrite, 1-10% of martensite, and 5-15% of tempered martensite, and that contains, by volume, 10% or more of retained austenite, in which the retained austenite has a mean grain size of 2 ?m or less, a mean Mn content in the retained austenite in mass % is at least 1.2 times the Mn content in the steel sheet in mass %, the retained austenite has a mean free path of 1.2 ?m or less, and the tempered martensite has a mean free path of 1.2 ?m or less.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 26, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Hiroshi Matsuda, Kazunori Tahara, Takeshi Yokota, Kaneharu Okuda, Kazuhiro Seto
  • Patent number: 10627121
    Abstract: An indoor unit includes axial-flow fans, which are provided on downstream of an air inlet. Further, a plurality of first bars are provided to the air inlet. In plan view, leading edge portions of blades of the axial-flow fan are inclined in a direction of rotation of the axial-flow fan from a rotary shaft side of the axial-flow fan to an outer peripheral side. Further, in plan view, the plurality of the first bars are inclined in a direction opposite to the direction of rotation of the axial-flow fan from the rotary shaft side of the axial-flow fan to the outer peripheral side.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomoya Fukui, Hiroshi Hirosaki, Kenichi Sakoda, Masayuki Oishi, Shuhei Yokota
  • Publication number: 20200107437
    Abstract: The present invention provides a prepreg for a coreless substrate including a thermosetting resin composition containing (a) (meth)acrylic elastomer, (b) an amine compound having at least two primary amino groups, and (c) a maleimide compound having at least two N-substituted maleimide groups, and a coreless substrate using the same, a method of manufacturing the coreless substrate, and a semiconductor package.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 2, 2020
    Inventors: Norihiko SAKAMOTO, Hiroshi YOKOTA, Shintaro HASHIMOTO, Katsuhiko NAWATE, Shinji TSUCHIKAWA, Shin TAKANEZAWA
  • Patent number: 10570475
    Abstract: Disclosed is a high-strength steel sheet having a predetermined chemical composition, satisfying the condition that Mn content divided by B content equals 2100 or less, and a steel microstructure that contains, by area, 25-80% of ferrite and bainitic ferrite in total, 3-20% of martensite, and that contains, by volume, 10% or more of retained austenite, in which the retained austenite has a mean grain size of 2 ?m or less, a mean Mn content in the retained austenite in mass % is at least 1.2 times the Mn content in the steel sheet in mass %, and an aggregate of retained austenite formed by seven or more identically-oriented retained austenite grains accounts for 60% or more by area of the entire retained austenite.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: February 25, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Hiroshi Matsuda, Yoshie Obata, Shinjiro Kaneko, Takeshi Yokota, Kazuhiro Seto
  • Publication number: 20200056006
    Abstract: The present invention provides a prepreg for a coreless substrate and a coreless substrate and a semiconductor package using the prepreg, which can satisfy heat resistance, low thermal expansion, and bonding strength with a metal circuit at a level required for the coreless substrate. Specifically, the prepreg for a coreless substrate contains a thermosetting resin composition containing (a) dicyandiamide, (b) an adduct of a tertiary phosphine and quinones, (c) an amine compound having at least two primary amino groups, and (d) a maleimide compound having at least two primary amino groups having at least two N-substituted maleimide groups. Instead of (c) the amine compound having at least two primary amino groups and (d) the maleimide compound, having at least two N-substituted maleimide groups, (X) an amino-modified polyimide resin obtained by reacting them may be used.
    Type: Application
    Filed: March 28, 2018
    Publication date: February 20, 2020
    Inventors: Hiroshi YOKOTA, Shintaro HASHIMOTO, Norihiko SAKAMOTO, Shinji TSUCHIKAWA, Katsuhiko NAWATE, Shin TAKANEZAWA
  • Publication number: 20200051525
    Abstract: An image processing apparatus includes a calibration section acquiring luminance characteristics of a display apparatus on a basis of a user manipulation for a calibration screen image displayed on the display apparatus, a luminance transforming section transforming a range of luminance composing a pixel value of an image into a range of luminance with which the image can be outputted as a display image on a basis of the luminance characteristics, and an output section outputting data associated with an image having the luminance after the transformation as a pixel value. The calibration section adjusts an initial state of the calibration screen image on a basis of information peculiar to the display apparatus, and then causes the calibration screen image to be displayed on the display apparatus.
    Type: Application
    Filed: May 1, 2019
    Publication date: February 13, 2020
    Applicant: Sony Interactive Entertainment Inc.
    Inventors: Hiroshi Mikami, Kenichiro Yokota, Shin Watanabe
  • Publication number: 20200049204
    Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis and in facing relation to each other. A first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor are disposed in relative positions on superposed rotation trajectories. A soft rubber member elastically deformable to a large extent and has a small modulus of elasticity and a hard rubber member elastically deformable to a small extent and has a large modulus of elasticity are interposed between the first and second pressing protrusions. While no relative torque load is being applied to the first and second rotors, the soft rubber member is held in contact with both the first and second pressing protrusions, and the hard rubber member is interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.
    Type: Application
    Filed: March 29, 2017
    Publication date: February 13, 2020
    Inventors: Hidemichi MORI, Hiroshi YOKOTA, Satoru NOJIMA, Soichiro MURAKAMI, Yasuhiro FUKUYOSHI, Toshiaki DEGUCHI, Yusuke OSAKI, Daisuke SUGIO, Takuya HATTA
  • Patent number: 10550446
    Abstract: A high-strength steel sheet with excellent formability and high yield ratio that has TS of 980 MPa or more and YR of 68% or more is obtained by providing a predetermined chemical composition and a steel microstructure that contains, in area ratio, 15 to 55% of polygonal ferrite, 8% or more of non-recrystallized ferrite, and 15 to 30% of martensite, and that contains, in volume fraction, 12% or more of retained austenite, in which the polygonal ferrite has a mean grain size of 4 ?m or less, the martensite has a mean grain size of 2 ?m or less, the retained austenite has a mean grain size of 2 ?m or less, and a value obtained by dividing an Mn content in the retained austenite (in mass %) by an Mn content in the polygonal ferrite (in mass %) equals 2.0 or more.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: February 4, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshiyasu Kawasaki, Hiroshi Matsuda, Takeshi Yokota, Takako Yamashita, Kazuhiro Seto
  • Publication number: 20200032853
    Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis be and in facing relation to each other, a single arc spring that is elastically deformable to a large extent and has a small modulus of elasticity, the arc spring being interposed between the first rotor and the second rotor for urging the first rotor and the second rotor to opposite sides in a ration direction, a first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor, the first pressing protrusion and the second pressing protrusion being disposed in relative positions on superposed rotation trajectories, and a rubber member that is elastically deformable to a small extent and has a large modulus of elasticity, the rubber member being interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.
    Type: Application
    Filed: March 29, 2017
    Publication date: January 30, 2020
    Inventors: Hidemichi MORI, Hiroshi YOKOTA, Toshiaki DEGUCHI, Yusuke OSAKI, Satoru NOJIMA, Soichiro MURAKAMI, Daisuke SUGIO, Takuya HATTA
  • Publication number: 20200025047
    Abstract: There is provided an internal combustion engine in which oil can be kept in an oil passageway when oil is supplied, so that the time required to supply oil can be reduced. In an internal combustion engine in which an oil supply inlet for replenishing, with oil, an oil pan reservoir chamber disposed in a lower portion of a crankcase extends obliquely downwardly from an oil supply port at an upper end thereof, the oil pan reservoir chamber has an oil pan inlet port disposed in a position offset from a vertical plane, including the oblique oil supply inlet, and a horizontal oil supply passageway bent and extending substantially horizontally from a lower end of the oil supply inlet is connected to the oil pan inlet port.
    Type: Application
    Filed: March 23, 2017
    Publication date: January 23, 2020
    Inventors: Hiroshi YOKOTA, Yoshiyuki IKEBE
  • Patent number: 10537798
    Abstract: The server apparatus is applied to a game system which has a storage unit storing gaming dynamic images different from each other in association with a stream ID for identifying each gaming dynamic image. The game system acquires a playing dynamic image photographed by a portable phone and a stream ID of the playing dynamic image via a network. Base on the acquisition result, the game system determines the gaming dynamic image whose stream ID corresponds to the stream ID of the playing dynamic image acquired as a target gaming dynamic image, and provides a dynamic-image delivery service so that a delivery screen is displayed at each personal computer, the delivery screen including a composite dynamic image where the playing dynamic image and the target gaming dynamic image are synthesized.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 21, 2020
    Assignee: Konami Digital Entertainment Co., Ltd.
    Inventors: Kazuya Takahashi, Takashi Taniguchi, Hiroshi Yokota, Hiroyuki Hosoyama, Takayuki Akita, Yuichi Tomoyose
  • Publication number: 20200011217
    Abstract: An internal combustion engine includes: an oil filter that is mounted to a mounting surface formed on a crankcase and clarifies an oil flowing in; an oil cooler that is disposed on a front side of the crankcase, cools the oil flowing in from the oil filter and returns the oil into a flow path in the crankcase; and a bracket formed on a front wall of the crankcase and having the mounting surface. An outflow port through which the oil flows out toward the oil cooler and an inflow port through which the oil flows in from the oil cooler are disposed in the bracket. Accordingly, in the internal combustion engine, routes of oil passages can be simplified as much as possible.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 9, 2020
    Inventors: Kensuke MORI, Yoshitaka NUKADA, Hiroshi YOKOTA
  • Publication number: 20200011269
    Abstract: An engine includes: a crankcase; a cover that is connected to the crankcase at a mating surface of the cover inclined toward an inner side in a vehicle width direction in going downward when the engine is mounted to a vehicle body, the cover covering a protruding end of a rotary shaft; and attachment bosses that are formed to be integral with the cover, have a predetermined height from the mating surface, and accept fastening members for fastening the cover to the crankcase. Accordingly, when mounted on a two-wheeled motor vehicle, the engine can restrain protrusion in the vehicle width direction and can be disposed at a position as low as possible with reference to the vehicle.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 9, 2020
    Inventors: Kensuke MORI, Yoshitaka NUKADA, Hiroshi YOKOTA, Chiharu KAWAI, Toshiaki DEGUCHI, Fumiaki OKUBO
  • Publication number: 20190387966
    Abstract: A blood-vessel optical device is provided with: a sheath provided with a lumen penetrating therethrough, and a dovetail groove disposed so as to be parallel to the lumen; and an optical member accommodated in the lumen and including at least one of an illuminating portion guiding illumination light to an imaging subject and a light detecting portion guiding return light from the imaging subject, wherein the groove has a cross-sectional shape configured to accommodate an elongated member so as to be movable, and has an opening that has a width smaller than a diameter of the elongated member and from which a portion of the accommodated elongated member protrudes to the outside, and wherein the sheath is configured such that an external dimension in a direction orthogonal to an arrangement direction in which the lumen and the groove are arranged is smaller than an external dimension in the arrangement direction.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Hiroshi TSURUTA, Takashi YASUMI, Yasuaki KASAI, Hirokazu YOKOTA
  • Patent number: 10513683
    Abstract: A structure used for animal cells is provided which includes an elastic body layer having a flat surface on which animal cells are left. The elastic body layer has a surface whose elasticity is changed by partially supporting the elastic body layer from the rear side or by changing a thickness of the elastic body layer.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 24, 2019
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroshi Sunami, Ikuko Yokota
  • Patent number: 10491903
    Abstract: A delivery rate selection device, for selecting a delivery rate when delivering a video image from a video delivery server to a client in a video delivery service. When a delivery rate calculating unit receives from an inquiry source an inquiry of delivery rate for delivering a video image to a given user, a delivery rate calculating unit acquires presence or absence of a playback stall tolerance and presence or absence of an image quality deterioration tolerance of the given user from the user characteristic storage unit, selects an encoding rate from a plurality of encoding rates of the video image according to a combination of the presence or absence of a playback stall tolerance and the presence or absence of an image quality deterioration tolerance of the given user, and returns the selected encoding rate as the delivery rate to the inquiry source.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 26, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuto Kimura, Masahiro Yokota, Ken Nishimatsu, Hiroshi Yamamoto, Kei Takeshita, Kazumichi Sato, Taichi Kawano
  • Patent number: 10472108
    Abstract: Provided is a highly reliable box-opening device being capable of suppressing failures of a box-opening action regardless of a size of a cardboard box sheet. The box-opening device unfolds a sheet in which first and second side surfaces and third and fourth side surfaces overlap, and forms a square-tube-shaped cardboard box. The box-opening device may have a suction disk to grasp the first side surface, a main arm having suction disks to grasp the fourth side surface and changing a posture while grasping the fourth side surface, and a control part to control a movement of the main arm so that an initial action, in which a gap is formed between the first and second side surfaces and the third and fourth side surfaces, and a main action that follows the initial action, are executed as an action of unfolding the sheet.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 12, 2019
    Assignee: ISHIDA CO., LTD.
    Inventors: Tatsuya Iwasa, Atsushi Takahashi, Yuji Yokota, Takeshi Noguchi, Tatsuya Arimatsu, Hiroshi Okano
  • Publication number: 20190284669
    Abstract: The present disclosure provides a method for manufacturing an aluminum alloy member capable of suppressing deterioration in ductility thereof. In the method for manufacturing an aluminum alloy member, an aluminum alloy casting material that contains 2.0 to 5.5 mass % of Cu, and 4.0 to 7.0 mass % of Si in which a content of Mg is 0.5 mass % or less, a content of Zn is 1.0 mass % or less, a content of Fe is 1.0 mass % or less, a content of Mn is 0.5 mass % or less and the balance is made of Al and inevitable impurities is used. The method for manufacturing an aluminum alloy member includes a heating and holding step of heating and holding the aluminum alloy casting material within a solid-liquid coexisting temperature region; and a quenching step of rapidly cooling the aluminum ally casting material after performing the heating and holding step.
    Type: Application
    Filed: February 5, 2019
    Publication date: September 19, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke YOKOTA, Hirotsune WATANABE, Makoto KIKUCHI, Hiroshi KAWAHARA, Yasushi IWATA, Jun YAOKAWA, Kazuma HIBI
  • Patent number: D872228
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 7, 2020
    Assignee: FUJIKOKI CORPORATION
    Inventors: Ryo Matsuda, Hiroshi Yokota, Junya Hayakawa