Patents by Inventor Sunao Wakatsuki

Sunao Wakatsuki 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: 8733492
    Abstract: A power unit 4 is mounted in a rear part of a vehicle, a shaft C shared by a motor 2 and a motor speed reducer 3 is disposed in a vehicle width direction, and a sub-frame 8 is provided around the power unit 4, a front cross frame 11 is disposed over a front portion of the power unit 4 in a front view of the vehicle and disposed in parallel with the shaft C of the motor 2, a rear cross frame 12 is disposed over a side portion of the power unit 4 in a side view of the vehicle, and left and right side portions of the power unit 4 are suspended from a vehicle body via suspension brackets 13 and 14 provided on side frames 9 and 10, circular mount rubbers 15 and 16, and motor-side mount brackets 17 and 18.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Yuichi Tachibana, Akihiro Nishikawa, Shuichi Yamane, Sunao Wakatsuki
  • Patent number: 8651216
    Abstract: In a motor mount structure of an electric vehicle, in which a front cross frame is connected to a front cross member, a rear cross frame is secured to a rear cross member, opposite sides of a power train in a vehicle width direction are supported on side frames by a side mount device placed so that positions in a vehicle fore-and-aft direction and a vehicle vertical direction are close to a horizontal line passing through the center of gravity of the power train and extending in the vehicle width direction, while a front mount device that regulates rolling of the power train is placed on a front portion of the power train, and the front mount device is mounted to a central portion of the front cross frame in the vehicle width direction.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: February 18, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Sunao Wakatsuki, Shuichi Yamane
  • Patent number: 8485292
    Abstract: In cooling apparatus for a hybrid vehicle having driving apparatus including a generator driven by an engine and an electric motor (12) for driving the vehicle, the driving apparatus, a radiator arranged in a front portion of an engine compartment and an inverter (41) are coupled by a cooling circuit for the motor equipment. An electric water pump (45) for circulating cooling water is arranged in the cooling circuit. Mounting apparatus (15) for supporting the driving apparatus to the vehicle body is arranged laterally in the vehicle width direction of the driving apparatus. The electric water pump (45) is arranged under the mounting apparatus (15). By the use of such a structure, a situation in which the electric water pump (45) gets sandwiched between the engine radiator which has been shifted backwardly in the presence of an external force acting from the front of the vehicle, and the driving apparatus and gets damaged can be prevented.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 16, 2013
    Assignee: Suzuki Motor Corporation
    Inventor: Sunao Wakatsuki
  • Patent number: 8479868
    Abstract: A front cross frame portion (12) is connected to a front cross member (27) provided at a connecting portion (26) between a front floor (6) and a vertical wall portion (7). A rear cross frame portion (13) is fixed to a rear cross member (28) extending along a lower surface side of a rear floor (8) in a vehicle width direction above a differential (16). Thereby, the longitudinal length of a subframe (9) is shortened, the stiffness of the subframe (9) is increased, and the space behind the rear cross frame portion (13) is increased.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 9, 2013
    Assignee: Suzuki Motor Corporation
    Inventors: Sunao Wakatsuki, Shuichi Yamane
  • Publication number: 20120211298
    Abstract: A power unit 4 is mounted in a rear part of a vehicle, a shaft C shared by a motor 2 and a motor speed reducer 3 is disposed in a vehicle width direction, and a sub-frame 8 is provided around the power unit 4, a front cross frame 11 is disposed over a front portion of the power unit 4 in a front view of the vehicle and disposed in parallel with the shaft C of the motor 2, a rear cross frame 12 is disposed over a side portion of the power unit 4 in a side view of the vehicle, and left and right side portions of the power unit 4 are suspended from a vehicle body via suspension brackets 13 and 14 provided on side frames 9 and 10, circular mount rubbers 15 and 16, and motor-side mount brackets 17 and 18.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 23, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Yuichi Tachibana, Akihiro Nishikawa, Shuichi Yamane, Sunao Wakatsuki
  • Publication number: 20120160590
    Abstract: In a motor mount structure of an electric vehicle, in which a front cross frame is connected to a front cross member, a rear cross frame is secured to a rear cross member, opposite sides of a power train in a vehicle width direction are supported on side frames by a side mount device placed so that positions in a vehicle fore-and-aft direction and a vehicle vertical direction are close to a horizontal line passing through the center of gravity of the power train and extending in the vehicle width direction, while a front mount device that regulates rolling of the power train is placed on a front portion of the power train, and the front mount device is mounted to a central portion of the front cross frame in the vehicle width direction.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 28, 2012
    Inventors: Sunao Wakatsuki, Shuichi Yamane
  • Publication number: 20120145467
    Abstract: A front cross frame portion (12) is connected to a front cross member (27) provided at a connecting portion (26) between a front floor (6) and a vertical wall portion (7). A rear cross frame portion (13) is fixed to a rear cross member (28) extending along a lower surface side of a rear floor (8) in a vehicle width direction above a differential (16). Thereby, the longitudinal length of a subframe (9) is shortened, the stiffness of the subframe (9) is increased, and the space behind the rear cross frame portion (13) is increased. (FIG.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 14, 2012
    Inventors: Sunao Wakatsuki, Shuichi Yamane
  • Publication number: 20110073394
    Abstract: In cooling apparatus for a hybrid vehicle having driving apparatus including a generator driven by an engine and an electric motor (12) for driving the vehicle, the driving apparatus, a radiator arranged in a front portion of an engine compartment and an inverter (41) are coupled by a cooling circuit for the motor equipment. An electric water pump (45) for circulating cooling water is arranged in the cooling circuit. Mounting apparatus (15) for supporting the driving apparatus to the vehicle body is arranged laterally in the vehicle width direction of the driving apparatus. The electric water pump (45) is arranged under the mounting apparatus (15). By the use of such a structure, a situation in which the electric water pump (45) gets sandwiched between the engine radiator which has been shifted backwardly in the presence of an external force acting from the front of the vehicle, and the driving apparatus and gets damaged can be prevented.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Applicant: SUZUKI MOTOR CORPORATION
    Inventor: Sunao Wakatsuki