Patents by Inventor Yuji Hoshino

Yuji Hoshino 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: 11370310
    Abstract: A vehicle power supply system includes: a main battery; a sub-battery with output voltage; a power converter having an input end connected to the main battery and an output end connected to a motor and converting output power of the main battery to driving power for the motor; a voltage converter connected between the main battery and the sub-battery and stepping down the voltage of the main battery to the voltage of the sub-battery; a charging inlet connected to the main battery and connecting to a power supply device outside a vehicle; a capacitor connected between a positive electrode and a negative electrode of the input end; and a coil connected between the main battery and the voltage converter. The coil is connected to the capacitor not via a charging power path from the charging inlet to the main battery.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: June 28, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takaji Kikuchi, Kenji Funahashi, Yuji Toba, Daisuke Hoshino
  • Patent number: 6015856
    Abstract: A composite resin material exhibiting excellent physical properties, which is formed by adding semi-rigid or rigid polyurethane resin waste to a thermoplastic reactive resin, a nonreactive resin, a polymer alloy or the like. A first kind of the composite resin material is composed of a crosslinking polyurethane resin and a reactive resin, a nonreactive resin or a polymer alloy, which is formed by kneading the crosslinking polyurethane resin and the reactive resin, the nonreactive resin or the polymer alloy at a predetermined temperature or more. A second kind of the composite resin material is composed of a hydrolysis product of crosslinking polyurethane resin and a solid filler, which are mixed with a nonreactive resin and a polymer alloy by kneading.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: January 18, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Takumi Taniguchi, Takashi Ohta, Norio Sato, Yuji Hoshino, Kanemitsu Kondo, Naruaki Abe, Toshiyuki Suzuki
  • Patent number: 5958988
    Abstract: A cross-linked polyurethane resin powder includes a powder including particles made from a hard or a semi-hard polyurethane resin. The particles have a superficial portion and an internal portion disposed inside the superficial portion, and involve cross-linked bondings therein. Part of the cross-linked bondings are unchanged, and another part thereof are broken to result in activated groups. At least part of the activated groups are exposed on the superficial portion of the particles. The cross-linked polyurethane resin powder is produced by hydrolyzing a hard or semi-hard polyurethane resin in the presence of water and in a temperature range of from a hydrolysis temperature of the resin to a liquefying temperature thereof, and by applying a predetermined shearing force to the resin. The cross-linked polyurethane resin powder can disperse well in resinous substrates, and can upgrade the physical properties of the resulting recycled products.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: September 28, 1999
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Takumi Taniguchi, Takashi Ohta, Norio Sato, Yuji Hoshino, Kanemitsu Kondo, Naruaki Abe, Toshiyuki Suzuki
  • Patent number: 5906998
    Abstract: In the decomposition of a polymer containing a urethane linkage and/or urea linkage in the presence of a decomposing agent, the amount of evolved carbon dioxide is measured and the decomposition reaction is conducted until a total amount of evolved carbon dioxide reaches a specified value to obtain a liquid decomposition product. According to the present invention, a decomposition product having constant quality can be obtained in a simple manner.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: May 25, 1999
    Assignees: Sumitomo Bayer Urethane Co., Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Hoshino, Takaaki Masuda, Hiroshi Ikuta, Hisao Mitobe
  • Patent number: 4558568
    Abstract: Geothermal fluid is pumped up through a production well applying the following process. The produced geothermal fluid is separated into steam and brine in a separator tank or a flash tank. A part of the separated steam is compressed by a steam compressor and brought into the production well. The steam acts as a pump by its bubble effect and pumps up the brine. The other part of steam and brine are utilized for driving the power generating apparatus such as a turbine, total flow turbine or the like.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: December 17, 1985
    Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Yuji Hoshino, Hajime Endou, Kazuyoshi Suda