Patents by Inventor Yasuhiro Aoki

Yasuhiro Aoki 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: 11456329
    Abstract: A display device, includes: a substrate; a plurality of pixels provided on the substrate; and a plurality of light emitting elements provided in each of the pixels. A first distance between a top surface of the substrate and one of the light emitting elements in a direction perpendicular to the top surface of the substrate, in a center portion of a display region of the substrate, is different from a second distance between the top surface of the substrate and another one of the light emitting elements in the direction perpendicular to the top surface of the substrate, in a periphery portion of the display region.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 27, 2022
    Assignee: Japan Display Inc.
    Inventors: Masanobu Ikeda, Yoshinori Aoki, Akihiro Ogawa, Yasuhiro Kanaya
  • Publication number: 20220293579
    Abstract: A display device includes a substrate, a first light-emitting diode (LED) element and a second LED element provided to the substrate and configured to output light, a first signal line provided between the first LED element and the second LED element and electrically coupled to the first LED element, a second signal line provided between the first LED element and the second LED element and electrically coupled to the second LED element, gate wiring intersecting the first signal line and the second signal line, and anode wiring overlapping the gate wiring and electrically coupled to the first LED element and the second LED element. The anode wiring extends parallel to the gate wiring.
    Type: Application
    Filed: June 2, 2022
    Publication date: September 15, 2022
    Inventors: Akihiro OGAWA, Masanobu IKEDA, Yasuhiro KANAYA, Yoshinori AOKI
  • Publication number: 20220285332
    Abstract: According to one embodiment, a display device includes pixels each including transistors, pixel electrodes, a contact electrode, and light emitting elements, and an insulating basement, a first organic insulating layer, a second organic insulating layer, a resin layer, a common electrode, and first wiring lines. The common electrode is electrically connected to cathodes of the light emitting elements, and electrically connected to the contact electrodes of the pixels. The first wiring lines, each provided between the first organic insulating layer and the second organic insulating layer or between the second organic insulating layer and the resin layer, are electrically connected to the contact electrodes of the pixels, and are formed of a metal.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Yoshinori AOKI, Yasuhiro KANAYA, Masanobu IKEDA, Akihiro OGAWA
  • Patent number: 11437428
    Abstract: A display device comprises: a substrate; a plurality of pixels provided to the substrate; and a plurality of light emitting elements provided to the respective pixels. The light emitting elements include a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of third light emitting elements, the first light emitting elements are arrayed on the substrate in a first direction and a second direction, the third light emitting element has a part not overlapping the first light emitting element or the second light emitting element when one of the pixels is viewed in the first direction, and the third light emitting element has a part not overlapping the first light emitting element or the second light emitting element when one of the pixels is viewed in the second direction.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: September 6, 2022
    Assignee: Japan Display Inc.
    Inventors: Masanobu Ikeda, Yoshinori Aoki, Akihiro Ogawa, Yasuhiro Kanaya
  • Publication number: 20220204117
    Abstract: A front fork includes a spring that is provided between a first cylindrical body and a second cylindrical body and applies a force in a direction to separate the first cylindrical body and the second cylindrical body, and a spring seat portion that is provided on an outer peripheral surface of the first cylindrical body and receives a first end of the spring. The spring seat portion includes a fixing portion that is fixed to the first cylindrical body, a spring seat body that is made of metal and receives the spring, and a third cylindrical body that is disposed between an inner peripheral surface of the spring seat body and the outer peripheral surface of the first cylindrical body and reduces a frictional force when the spring seat body rotates.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 30, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventor: Yasuhiro AOKI
  • Patent number: 11352095
    Abstract: A front fork includes a first shock absorber and a second shock absorber disposed respectively on both sides of a vehicle wheel. The first shock absorber includes a set of tubes configured to slide relative to each other; damping force generation parts configured to generate a damping force in accordance with the sliding of the tubes; and a spring configured to urge the set of tubes in a stretching direction. The second shock absorber includes a set of tubes configured to slide relative to each other; and a coil spring configured to urge the set of tubes in the stretching direction.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: June 7, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Yasuhiro Aoki
  • Publication number: 20220162723
    Abstract: Provided are an effective and simple surface-modifying method for prolonging the life of a steel structure made of a steel material having a high sulfur (S) content, and a steel structure having a life prolonged by the surface-modifying method. A surface-modifying method for forming a friction stir region on the surface of a steel material by friction stir processing, wherein a sulfur (S) content of the steel material is 200 ppm or more.
    Type: Application
    Filed: March 2, 2020
    Publication date: May 26, 2022
    Applicant: OSAKA UNIVERSITY
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Yasuhiro Aoki
  • Publication number: 20220154797
    Abstract: This shock absorber includes a friction generating member which is provided at a position on a side defined by a seal member of a cylinder and comes into sliding contact with a piston rod. The friction generating member has an annular elastic rubber portion which comes into sliding contact with the piston rod and a base portion to which the elastic rubber portion is fixedly attached. The elastic rubber portion is formed such that an upstream side and a downstream side are able to communicate with each other when a differential pressure between a one side chamber of the cylinder and a reservoir chamber reaches a predetermined pressure.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 19, 2022
    Inventor: Yasuhiro AOKI
  • Patent number: 11273518
    Abstract: A linear friction welding method capable of accurately controlling a welding temperature and capable of lowering the welding temperature is provided. The present invention is a linear friction welding method comprising: a first step of forming a welded interface by bringing one member into contact with the other member; a second step of repeatedly sliding one member and the other member on the same locus and discharging flash from the welded interface in a state where pressure is applied substantially perpendicularly to the welded interface; and a third step of forming a welded surface by stopping the sliding and setting the pressure to be not less than the yield stress and not more than the tensile strength of one member and/or the other member at a desired welding temperature.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: March 15, 2022
    Assignee: OSAKA UNIVERSITY
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Yasuhiro Aoki, Masanori Yasuyama, Gen Murayama
  • Patent number: 11198281
    Abstract: The present invention relates to a laminated film for fiber adhesion and/or fiber sheet surface protection in which a layer [I] containing a thermosetting composition [i] and a support film [II] are laminated, wherein the thermosetting composition [i] contains a thermal polymerization initiator (C) having a 10-hour half-life temperature of 65° C. or higher.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 14, 2021
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yasuhiro Aoki, Katsuhiko Katsuma
  • Patent number: 11143264
    Abstract: Electrorheological fluid is loaded in a shock absorber 1 as hydraulic fluid 2. The shock absorber 1 controls a generated damping force by producing a potential difference in an electrode passage 19 to thus change viscosity of electrorheological fluid flowing in the electrode passage 19. A plurality of partition walls 20 is provided in the electrode passage 19 formed between an inner tube 3 and an electrode tube 18. Due to this configuration, a plurality of helical flow passages 24 is formed in the electrode passage 19. In this case, the flow passages 24 are each provided with a flow passage cross-sectional area change portion that allows the flow passage 24 to have a larger cross-sectional area on one side spaced apart from an entrance 24A1 side (an intermediate region F) at least compared to the entrance 24A1 side of the extension-side flow passage 24 (an inflow region E).
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: October 12, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Yasuhiro Aoki
  • Patent number: 11110542
    Abstract: The present invention provides a friction welding method capable of reducing the welding temperature and a friction welding method capable of obtaining a welded portion free of defects regardless the type of material. A frictional welding method in which one member is brought into contact with the other member and slides while a load is applied substantially perpendicularly to the interface to be welded, the frictional welding method comprising: a first step in which frictional welding is carried out by setting a pressure calculated from the area and the load of the interface to be welded to be equal to or higher than the yield stress and the tensile strength of one member and/or the other member at a desired welding temperature; and a second step in which frictional welding is carried out by lowering the load, wherein the first step and the second step are continuously carried out.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: September 7, 2021
    Assignee: OSAKA UNIVERSITY
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Yasuhiro Aoki
  • Patent number: 11073190
    Abstract: Electrorheological fluid is loaded in a shock absorber (1) as hydraulic fluid (2). The shock absorber (1) controls a generated damping force by causing a potential difference to be generated in an electrode passage (19) and controlling a viscosity of the electrorheological fluid passing through this electrode passage (19). A plurality of partition walls (20) is provided between an inner cylinder (3) and an electrode cylinder (18). By being configured in this manner, the shock absorber (1) forms a plurality of helical flow passages (21) between the inner cylinder (3) and the electrode cylinder (18). In this case, an inclination angle of each of the partition walls (20) is not constant, and each of the partition walls (20) includes a sharply inclined portion (20A) inclined at a large angle on at least an entrance side of an extension-side flow passage (21).
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 27, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Yasuhiro Aoki, Umi Tanabe
  • Publication number: 20210220942
    Abstract: Provided are a long-life and inexpensive friction stir welding tool that is not dependent on the mode of friction stir welding or the type of material to be welded, and a friction stir welding method using the friction stir welding tool. The friction stir welding tool comprises a body portion having a shoulder portion, and a probe portion disposed on a bottom surface of the body portion, and is characterized in that the probe portion is spherical-crown shaped. Preferably, the shoulder portion is flat or convex, and preferably the hardness of the shoulder portion is greater than the hardness of the probe portion.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 22, 2021
    Applicant: OSAKA UNIVERSITY
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Yasuhiro Aoki, Akihiko Ikuta
  • Publication number: 20210129263
    Abstract: A linear friction welding method capable of accurately controlling a welding temperature and capable of lowering the welding temperature is provided. The present invention is a linear friction welding method comprising: a first step of forming a welded interface by bringing one member into contact with the other member; a second step of repeatedly sliding one member and the other member on the same locus and discharging flash from the welded interface in a state where pressure is applied substantially perpendicularly to the welded interface; and a third step of forming a welded surface by stopping the sliding and setting the pressure to be not less than the yield stress and not more than the tensile strength of one member and/or the other member at a desired welding temperature.
    Type: Application
    Filed: February 1, 2018
    Publication date: May 6, 2021
    Applicant: OSAKA UNIVERSITY
    Inventors: Hidetoshi Fujii, Yoshiaki Morisada, Yasuhiro Aoki, Masanori Yasuyama, Gen Murayama
  • Publication number: 20210107087
    Abstract: To provide a solid phase welding method and a solid phase welding apparatus which are possible to accurately control the welding temperature, to lower the welding temperature and to achieve a solid phase welding of the metallic materials. The present invention provides a solid phase welding method for metallic materials comprising, a first step of forming an interface to be welded by abutting end portions of one material to be welded and the other material to be welded and applying a pressure in a direction substantially perpendicular to the interface to be welded, a second step of raising a temperature of the vicinity of the interface to be welded to a welding temperature by an external heating means, wherein the pressure is set to equal to or more than the yield strength of the one material to be welded and/or the other material to be welded at the welding temperature.
    Type: Application
    Filed: February 22, 2019
    Publication date: April 15, 2021
    Applicant: Osaka University
    Inventors: Hidetoshi FUJII, Yoshiaki MORISADA, Huihong LIU, Yasuhiro AOKI, Masayoshi KAMAI
  • Publication number: 20210078376
    Abstract: A shock absorber includes an outer tube, an inner tube fitted to the outer tube so as to be able to move forward and backward, a cylinder provided inside the outer tube and extending inside the inner tube, a rod extending from an end portion of the inner tube exposed from the outer tube to an inside of the cylinder, and a piston which is provided on the rod and divides the inside of the cylinder to form a gas chamber. On an outer peripheral surface of the piston, a first lubricating member, a first seal member, and a second seal member are provided in this order from a side closest to the gas chamber to a side away from the gas chamber. The members are in sliding contact with an inner peripheral surface of the cylinder.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Applicant: SHOWA CORPORATION
    Inventor: Yasuhiro AOKI
  • Patent number: 10816037
    Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 27, 2020
    Assignees: NITTA CORPORATION, THK CO., LTD.
    Inventors: Takehito Dei, Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Yasuhiro Aoki
  • Publication number: 20200284313
    Abstract: Electrorheological fluid is loaded in a shock absorber 1 as hydraulic fluid 2. The shock absorber 1 controls a generated damping force by producing a potential difference in an electrode passage 19 to thus change viscosity of electrorheological fluid flowing in the electrode passage 19. A plurality of partition walls 20 is provided in the electrode passage 19 formed between an inner tube 3 and an electrode tube 18. Due to this configuration, a plurality of helical flow passages 24 is formed in the electrode passage 19. In this case, the flow passages 24 are each provided with a flow passage cross-sectional area change portion that allows the flow passage 24 to have a larger cross-sectional area on one side spaced apart from an entrance 24A1 side (an intermediate region F) at least compared to the entrance 24A1 side of the extension-side flow passage 24 (an inflow region E).
    Type: Application
    Filed: March 13, 2018
    Publication date: September 10, 2020
    Inventor: Yasuhiro AOKI
  • Publication number: 20200226877
    Abstract: In order to make a configuration which achieves a new appeal to viewers such as players by emitting light while having a simple structure, a light emitting device attached to a housing (2) constituting a game device (1) includes a tubular member (30) having flexibility and translucency, and a light source disposed in the tubular member (30). An installation member on which the tubular member (30) is installed is provided in the housing (2) of the game device (1). An attachment portion for installing the tubular member (30) on the installation member may be formed on the tubular member (30). An installation protrusion may be provided in the installation member, and the attachment portion of the tubular member (30) may be configured by a groove having the same shape as a cross-sectional shape of the protrusion for attachment.
    Type: Application
    Filed: August 10, 2017
    Publication date: July 16, 2020
    Inventors: Keiji Sugawara, Kenji Kuwahara, Kimio Tsuda, Souichi Aoki, Yasuhiro Aoki