Patents by Inventor Kiminobu Terao

Kiminobu Terao 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).

  • Publication number: 20220290749
    Abstract: A vehicle drive device is provided that can suppress the increase in dimension in the radial direction while ensuring a sufficient speed reduction ratio. Two driving force sources are arranged on a first axis, two output members are arranged on a second axis, two counter gear mechanisms are arranged on a third axis. A planetary gear mechanism is configured to transmit rotation from the two counter gear mechanisms to the output members, and is disposed so as to overlap with both of the two counter gear mechanisms as seen in an axial direction along and axial direction.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 15, 2022
    Applicants: AISIN CORPORATION, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Toshihisa MIZUTANI, Kenta KATAOKA, Taiki OWARI, Hiroaki OSANAI, Daiki SUYAMA, Hiroshi KATO, Yuki YANAGIHARA, Naoki TAKAHASHI, Kiminobu TERAO, Takuya OGASAWARA, Yosuke MORIMOTO
  • Publication number: 20220196130
    Abstract: A left-right wheel driving device (10) includes: a casing (15) including a reservoir (18) that stores oil; a suction port (19) that is disposed on the reservoir (18) and that sucks the oil from the reservoir (18); and two gears (34) that are each having helical teeth, that are supported so as to be rotatable about a rotating shaft (13) at least in one direction (D), that are provided on a power transmission path that transmits power to left and right wheels of a vehicle, and that are spaced apart from each other. The suction port (19) is positioned between the two gears (34). Each of the gears (34) is offset from the suction port in an axial direction of the rotating shaft (13), being in a state of being partially immersed in the oil stored in the reservoir (18). The helical teeth of each of the gears (34) extend in the one direction (D) and in a direction that departs from the suction port (19).
    Type: Application
    Filed: December 24, 2019
    Publication date: June 23, 2022
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Motoharu CHIBA, Kiminobu TERAO, Naoki TAKAHASHI
  • Publication number: 20220048375
    Abstract: In a left-right wheel driving device (10) including two motors (1, 2) that drive left and right wheels and a gear mechanism (3) that amplifies a torque difference between the two motors (1, 2) and transmits the amplified torques to the left and right wheels, respective, rotating shafts (1A, 2A) of the two motors (1, 2) are coaxially disposed.
    Type: Application
    Filed: December 24, 2019
    Publication date: February 17, 2022
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Naoki TAKAHASHI, Kiminobu TERAO, Motoharu CHIBA
  • Patent number: 5941534
    Abstract: A hydraulic seal system includes a seal ring groove and a seal ring mounted in the seal ring groove. The seal ring and seal ring groove are rotatable relative to each other, and have sealing sides, respectively, which are put into pressure contact with each other by a sealing hydraulic pressure. The seal ring is made of a synthetic resin to have a fixed elasticity. The sealing side of the seal ring is formed into a convex curved surface with its radially central portion raised, so that when a hydraulic pressure is applied, the sealing side can be compressedly deformed to define a hydraulic pocket. Thus, the formation and retaining of an oil film at the pressure contact portions of the sealing sides is promoted.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: August 24, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiminobu Terao, Kouji Ueda, Yorinori Kumagai, Takamichi Shimada, Kenji Amano, Toshio Oka, Junya Nagai
  • Patent number: 5713578
    Abstract: One end of a seal ring retained in a seal ring groove is formed in such a manner that it is offset radially inwardly from the other end, so that oil is permitted to leak by opening an abutment joint formed by the two ends in a condition in which no hydraulic pressure is applied. If a hydraulic pressure is supplied to bring a hydraulic actuator into an engaged state, the one end of the seal ring is deformed radially outwardly by the hydraulic pressure to come into close contact with a sealing surface and to close the abutment joint, thereby preventing the oil from-leaking past the oil ring. Consequently, upon engagement of the hydraulic actuator, a sealing property or salability of the oil can be assured, and upon releasing of the engagement of the hydraulic actuator, an oil leaking property of the seal ring can be provided, leaking property of the oil can be provided, thereby enhancing the responsiveness of the hydraulic actuator.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: February 3, 1998
    Assignee: Honda Giken Kogyo Kabushishi Kaisha
    Inventors: Kiminobu Terao, Kouji Ueda, Mayumi Takada, Kenji Amano
  • Patent number: 5701976
    Abstract: In a hydraulic brake for a transmission, an assist piston, a reaction piston and a main piston are accommodated on a cylinder. The assist piston has a first acting portion in abutment against the main piston, and the main piston has a second acting portion facing one end of stacked frictional engaging elements. The assist piston and the main piston are moved rightwardly by a hydraulic pressure supplied to a first oil chamber and a second oil chamber to bring the frictional engaging elements into engagement with one another. The first and second acting portions are superposed as viewed axially, thereby preventing a jarring of the assist piston and the main piston. In one embodiment, each of the pistons is formed from a pressed article, whereby the machining cost can be reduced and, moreover, oil passages connecting the first and second oil chambers can be provided in a simple manner.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: December 30, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yorinori Kumagai, Yoshihiro Kodama, Yoichi Kojima, Kiminobu Terao
  • Patent number: 5660398
    Abstract: In a sealing device, a crank-shaped oil channel is defined in an abutment of a sealing ring for sealing between a shaft member and a housing which surrounds the shaft member and is rotatable relative the shaft member. The crank-shaped oil channel is comprised of a first oil channel portion and a second oil channel portion which extend axially, and a third oil channel portion which connects the first and second oil channel portions to each other. If the sealing ring is thermally expanded circumferentially due to a change in temperature, the sectional area of the flow path in each of the first and second oil channel portions is varied, but the sectional area of the flow path in the third oil channel portion is not substantially varied. Therefore, it is possible to leak a given amount of an oil from one side of the sealing ring through the crank-shaped oil channel to the other side, thereby preventing the wearing of the shaft member caused by foreign matter, such as an iron powder, contained in the oil.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: August 26, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiminobu Terao, Mayumi Takada, Yorinori Kumagai, Takamichi Shimada, Toshio Oka, Junya Nagai