Patents by Inventor Atsuomi Obata

Atsuomi Obata 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).

  • Hybrid vehicle
    Patent number: 6488608
    Abstract: A hybrid car, which can utilize the merits of both the series system hybrid car and the parallel system hybrid car and has high fuel consumption efficiency, is provided. Only one electric rotary machine is mounted in order to reduce the total weight of the car. By eliminating energy to be lost by friction of an internal combustion engine during regenerative braking, energy efficiency regenerated by the regenerative braking is improved. The internal combustion engine, a motor-generator, a clutch and a change gear are connected in the sequence and a unidirectional rotation transmitting means is provided between the internal combustion engine and the motor-generator.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: December 3, 2002
    Assignee: Hino Jidousha Kabushiki Kaisha
    Inventors: Koichi Yamaguchi, Atsuomi Obata, Atsushi Masuda
  • Hybrid vehicle
    Publication number: 20010011050
    Abstract: A hybrid car, which can utilize the merits of both the series system hybrid car and the parallel system hybrid car and has high fuel consumption efficiency, is provided. Only one electric rotary machine is mounted in order to reduce the total weight of the car. By eliminating energy to be lost by friction of an internal combustion engine during regenerative braking, energy efficiency regenerated by the regenerative braking is improved. The internal combustion engine, a motor-generator, a clutch and a change gear are connected in the sequence and a unidirectional rotation transmitting means is provided between the internal combustion engine and the motor-generator.
    Type: Application
    Filed: January 23, 2001
    Publication date: August 2, 2001
    Inventors: Koichi Yamaguchi, Atsuomi Obata, Atsushi Masuda
  • Apparatus for storing energy generated during breaking of a vehicle and for providing energy to the internal combustion engine of the vehicle at other times
    Patent number: 5552681
    Abstract: A braking and auxiliary driving unit for an internal combustion engine which produces braking and auxiliary motive power by converting electrical energy in both directions between a polyphase AC circuit of a squirrel-cage polyphase induction machine linked to the rotary shaft of the internal combustion engine and the DC circuit of an electricity storage means, the electricity storage means comprises an electrostatic capacitive circuit. A low-voltage storage battery is provided in addition to this electrostatic capacitive circuit, and this can be coupled to the electrostatic capacitive circuit by a bidirectional DC-to-DC converter.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: September 3, 1996
    Assignee: Hino Jidosha Kogyo Kabushiki Kaisha
    Inventors: Takayuki Suzuki, Atsuomi Obata
  • Braking and auxiliary driving means for an internal combustion engine
    Patent number: 5513718
    Abstract: A braking and auxiliary driving unit for an internal combustion engine which produces braking and auxiliary motive power by converting electrical energy in both directions between a polyphase AC circuit of a squirrel-cage polyphase induction machine linked to the rotary shaft of the internal combustion engine and the DC circuit of an electricity storage means, the electricity storage means comprises an electrostatic capacitive circuit. A low-voltage storage battery is provided in addition to this electrostatic capacitive circuit, and this can be coupled to the electrostatic capacitive circuit by a bidirectional DC-to-DC converter.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: May 7, 1996
    Assignee: Hino Jidosha Kogyo Kabushiki Kaisha
    Inventors: Takayuki Suzuki, Atsuomi Obata
  • Electric braking and auxiliary engine mechanism for a motor vehicle
    Patent number: 5172006
    Abstract: This invention relates to an electric braking and auxiliary engine mechanism for a motor vehicle including a rotary machine coupled with the crank shaft of the internal combustion engine which drives the axle of the vehicle. This mechanism is characterized in that squirrel-cage polyphase induction machine is used as the rotary machine which is fixedly connected to the crank shaft, and the squirrel-cage polyphase induction mechanism is fed with a revolving magnetic field which is variable either positive or negative direction by an invertor, so that the squirrel-cage polyphase induction machine may be utilized either as a power generator or a motor.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: December 15, 1992
    Assignees: Hino Jidosha Kogyo Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Takayuki Suzuki, Tetsuo Koike, Atsuomi Obata, Masashi Shigemori, Kohji Sasaki, Sadayoshi Iketani, Hiroshi Uchino, Kouzou Kawata
  • Electric braking and auxiliary engine mechanism for a motor vehicle
    Patent number: 5053632
    Abstract: This invention relates to an electric braking and auxiliary engine mechanism for a motor vehicle including a rotary machine coupled with the crank shaft of the internal combustion engine which drives the axle of the vehicle. This mechanism is characterized in that squirrel-cage polyphase induction machine is used as the rotary machine which is fixedly connected to the crank shaft, and the squirrel-cage polyphase induction mechanism is fed with a revolving magnetic field which is variable either positive or negative direction by an invertor, so that the squirrel-cage polyphase induction machine may be utilized either as a power generator or a motor.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: October 1, 1991
    Assignees: Hino Jidosha Kogyo Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Takayuki Suzuki, Tetsuo Koike, Atsuomi Obata, Masashi Shigemori, Kohji Sasaki, Sadayoshi Iketani, Hiroshi Uchino, Kouzou Kawata