Patents by Inventor Yusuke Aoyama

Yusuke Aoyama 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: 12221705
    Abstract: Provided is an alloyed galvanized steel sheet with excellent resistance to cracking in resistance welding at a welded portion, even if crystal orientations of an Fe-based electroplating layer and a cold-rolled steel sheet are integrated at a high ratio at the interface between the Fe-based electroplating layer and the cold-rolled steel sheet. The alloyed galvanized steel sheet has a Si-containing cold-rolled steel sheet containing Si in an amount of 0.1 mass % to 3.0 mass %; an Fe-based electroplating layer formed on at least one surface of the Si-containing cold-rolled steel sheet with a coating weight per surface exceeding 20.0 g/m2, and an alloyed galvanized layer formed on the Fe-based electroplating layer, where crystal orientations of the Fe-based electroplating layer and the Si-containing cold-rolled steel sheet are integrated at a ratio of more than 50% at the interface between the Fe-based electroplating layer and the Si-containing cold-rolled steel sheet.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: February 11, 2025
    Assignee: JFE STEEL CORPORATION
    Inventors: Shunsuke Yamamoto, Katsutoshi Takashima, Mai Aoyama, Yusuke Okumura, Tomomi Kanazawa, Katsuya Hoshino, Hiroshi Matsuda, Ei Okumura, Yoichi Makimizu, Masaki Koba
  • Publication number: 20240266572
    Abstract: This solid oxide fuel cell is configured by stacking, in the thickness direction, a plurality of power generating cells having a solid electrolyte plate, an anode electrode disposed to one surface of the solid electrolyte plate, an anode support layer supporting the anode electrode, a cathode electrode disposed to the other surface of the solid electrolyte plate, and a cathode support layer supporting the cathode electrode, the power generating cells being stacked via an interconnector for electrically connecting the anode support layer of one of adjacent power generating cells and the cathode support layer of another of the adjacent power generating cells, wherein: the anode support layer and the cathode support layer are formed of a ferritic stainless steel; and the interconnector is formed of a ferritic stainless steel containing aluminum.
    Type: Application
    Filed: June 8, 2021
    Publication date: August 8, 2024
    Inventors: Yusuke AOYAMA, Takeshi SHIOMI, Keiji ICHIHARA
  • Patent number: 11753097
    Abstract: A seat cushion includes an edge portion and a three-dimensional fiber structure including core-sheath fusible fibers and skeletal fibers thermally fused at intersections thereof. The sheaths of the core-sheath fusible fibers are made of a thermoplastic elastomer to fuse the intersections and form a bulging portion at each of the fused intersections. The skeletal fibers and the cores of the core-sheath fusible fibers are made of a non-elastomer resin. The skeletal fibers are crimp-processed bulky fibers, and a fineness of the skeletal fibers and a fineness of the core-sheath fusible fibers are in a range of 1 to 200 dtex. The seat cushion has a layered structure including a plurality of layers fused together, each of the layers has the three-dimensional fiber structure, and the seat cushion has a density distribution based on regional variations of the layered structure and a stiffness distribution that depends on the density distribution.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: September 12, 2023
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hideyoshi Sato, Tetsuya Mashiko, Sho Kakuta, Naoki Kinomoto, Yusuke Aoyama, Shigeyuki Ozawa, Mikito Yokoyama
  • Publication number: 20220306228
    Abstract: A seat cushion includes an edge portion and a three-dimensional fiber structure including core-sheath fusible fibers and skeletal fibers thermally fused at intersections thereof. The sheaths of the core-sheath fusible fibers are made of a thermoplastic elastomer to fuse the intersections and form a bulging portion at each of the fused intersections. The skeletal fibers and the cores of the core-sheath fusible fibers are made of a non-elastomer resin. The skeletal fibers are crimp-processed bulky fibers, and a fineness of the skeletal fibers and a fineness of the core-sheath fusible fibers are in a range of 1 to 200 dtex. The seat cushion has a layered structure including a plurality of layers fused together, each of the layers has the three-dimensional fiber structure, and the seat cushion has a density distribution based on regional variations of the layered structure and a stiffness distribution that depends on the density distribution.
    Type: Application
    Filed: March 24, 2022
    Publication date: September 29, 2022
    Inventors: Hideyoshi SATO, Tetsuya MASHIKO, Sho KAKUTA, Naoki KINOMOTO, Yusuke AOYAMA, Shigeyuki OZAWA, Mikito YOKOYAMA
  • Patent number: 8720355
    Abstract: A water jet propulsion boat has a water jet propulsion device in a body, and is propelled by the water jet propulsion device. An electric unit having a waterproof structure and being separate from the body can be removably disposed in a storage section without using any tools. The storage section is defined by a recess provided in the body and being open upward.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 13, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yusuke Aoyama
  • Publication number: 20120067264
    Abstract: A water jet propulsion boat has a water jet propulsion device in a body, and is propelled by the water jet propulsion device. An electric unit having a waterproof structure and being separate from the body can be removably disposed in a storage section without using any tools. The storage section is defined by a recess provided in the body and being open upward.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Applicant: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yusuke AOYAMA
  • Publication number: 20070171315
    Abstract: A water jet propulsion boat has a water jet propulsion device in a body, and is propelled by the water jet propulsion device. An electric unit having a waterproof structure and being separate from the body can be removably disposed in a storage section without using any tools. The storage section is defined by a recess provided in the body and being open upward.
    Type: Application
    Filed: April 6, 2006
    Publication date: July 26, 2007
    Inventor: Yusuke Aoyama
  • Patent number: 6827031
    Abstract: A watercraft includes moveable sponsons that are moved in response to movements of the handlebars and the accelerator lever. The watercraft can include a number of different kinds of actuators for moving these sponsons relative to the hull of the watercraft. In preferred embodiments, the sponsons are moved outwardly and/or downwardly relative to the hull.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: December 7, 2004
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yusuke Aoyama
  • Publication number: 20030075094
    Abstract: A watercraft includes moveable sponsons that are moved in response to movements of the handlebars and the accelerator lever. The watercraft can include a number of different kinds of actuators for moving these sponsons relative to the hull of the watercraft. In preferred embodiments, the sponsons are moved outwardly and/or downwardly relative to the hull.
    Type: Application
    Filed: October 24, 2002
    Publication date: April 24, 2003
    Inventor: Yusuke Aoyama
  • Patent number: 6530812
    Abstract: A jet propulsion unit for a small watercraft including a secondary thrust arrangement. The secondary thrust arrangement includes a primary valve and a secondary valve arrangement. At least one discharge port is disposed on a hull of the watercraft. A jet propulsion unit is configured to discharge pressurized water from the steering nozzle in a substantially rearward direction from the watercraft or to discharge pressurized water through at least one discharge port disposed in the outer surface of the hull to achieve enhanced steering control of the watercraft.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: March 11, 2003
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Satoshi Koyano, Hisato Yamada, Koju Tsukahara, Tsuide Yanagihara, Yusuke Aoyama, Yoshihiro Gahara
  • Publication number: 20020077008
    Abstract: A jet propulsion unit for a small watercraft including a secondary thrust arrangement. The secondary thrust arrangement includes a primary valve and a secondary valve arrangement. At least one discharge port is disposed on a hull of the watercraft. A jet propulsion unit is configured to discharge pressurized water from the steering nozzle in a substantially rearward direction from the watercraft or to discharge pressurized water through at least one discharge port disposed in the outer surface of the hull to achieve enhanced steering control of the watercraft.
    Type: Application
    Filed: March 19, 2001
    Publication date: June 20, 2002
    Inventors: Satoshi Koyano, Hisato Yamada, Koju Tsukahara, Tsuide Yanagihara, Yusuke Aoyama, Yoshihiro Gahara