Patents by Inventor Kouji Iwasaka

Kouji Iwasaka 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: 8403096
    Abstract: A rear floor panel extends rearwardly from a kick-up portion formed at a rear portion of a floor panel. A lateral connecting member which constitutes part of a rear suspension connects to supporting portions to support both rear wheels. An engine is arranged below the rear floor panel and in front of the lateral connecting member. A generator is arranged below the rear floor panel and in back of the engine. Accordingly, the traveling stability of the vehicle can be improved and the yaw inertia moment of the vehicle can be decreased.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: March 26, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Tomoo Taguchi, Hiromichi Kawamura, Kouji Iwasaka
  • Publication number: 20110168468
    Abstract: This disclosure provides a structure of an electric vehicle, which includes an engine, an electric generator which is driven by the engine, a battery which is supplied and charged with generated power at least from the electric generator, and a motor which is supplied with power from the battery to drive driving wheels. The engine and the electric generator are arranged inside a floor tunnel that is formed in a center part of a floor panel along the vehicle width axis so as to extend along the vehicle front-to-rear axis and bulge upward.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 14, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomoo Taguchi, Kouji Iwasaka, Hiromichi Kawamura
  • Publication number: 20110073390
    Abstract: A rear floor panel extends rearwardly from a kick-up portion formed at a rear portion of a floor panel. A lateral connecting member which constitutes part of a rear suspension connects to supporting portions to support both rear wheels. An engine is arranged below the rear floor panel and in front of the lateral connecting member. A generator is arranged below the rear floor panel and in back of the engine. Accordingly, the traveling stability of the vehicle can be improved and the yaw inertia moment of the vehicle can be decreased.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 31, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomoo TAGUCHI, Hiromichi KAWAMURA, Kouji IWASAKA
  • Patent number: 7658440
    Abstract: An arrangement structure for an auxiliary component of a vehicle includes a floor panel defining the bottom surface of the passenger compartment. The floor panel includes a first kick-up portion and a second kick-up portion disposed in side-by-side relation to the first kick-up portion in a lateral direction of a vehicle body. The second kick-up portion is formed to have a height greater than that of the first kick-up portion. A first seat is disposed on the first kick-up portion, a second seat is formed to have a smaller size than that of the first seat and disposed on the second kick-up portion, and a cross member is joined along the second kick-up portion in the lateral direction to form a closed section therebetween. The arrangement structure of the present invention allows a vehicle to have a low overall-height compact body while achieving enhanced layout flexibility and assuring a passenger compartment space.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: February 9, 2010
    Assignee: Mazda Motor Corporation
    Inventors: Isao Tohda, Kouji Iwasaka, Katsumasa Sogame, Shigeyuki Mori
  • Patent number: 7281971
    Abstract: In an air conditioner for a vehicle including a vehicle roof capable of opening, there are provided a driver seat and a passenger seat which are provided at right and left sides in a vehicle compartment, plural conditioned-air blowoff ports provided for the driver seat and the passenger seat respectively, and an air conditioning control device operative to adjust respective characteristics of conditioned air for the driver seat and the passenger seat, separately. Accordingly, needs of each passenger on the driver seat and the passenger seat during a vehicle driving with the vehicle roof open can be attained, thereby improving comfortableness of air conditioning.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: October 16, 2007
    Assignee: Mazda Motor Corporation
    Inventors: Isao Tohda, Kouji Iwasaka
  • Patent number: 7185725
    Abstract: In a vehicle, a cowl portion for supporting a front end of a windshield is disposed above the dash panel so as to extend in a width direction of the vehicle, an instrument panel member is located backward away from the cowl portion so as to extend in the width direction of the vehicle above the dash panel, a recess portion is formed in such manner that a central portion of the dash panel in the width direction of the vehicle is recessed backward from the cowl portion to the instrument panel member, and the driving device for the vehicle is disposed in the recess portion such that the driving device is located in front of and close to the instrument panel member.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: March 6, 2007
    Assignee: Mazda Motor Corporation
    Inventors: Kouji Iwasaka, Isao Tohda, Yukio Nakamura
  • Publication number: 20060238000
    Abstract: Disclosed is an arrangement structure for an auxiliary component of a vehicle, which comprises a floor panel defining the bottom surface of the passenger compartment and having a first kick-up portion and a second kick-up portion disposed in side-by-side relation to the first kick-up portion in a lateral direction of a vehicle body and formed to have a height greater than that of the first kick-up portion, a first seat disposed on the first kick-up portion, a second seat formed to have a smaller size than that of the first seat and disposed on the second kick-up portion, and a cross member joined along the second kick-up portion in the lateral direction to form a closed section therebetween. The auxiliary component includes a first fuel tank arranged below the first kick-up portion, and a second fuel tank formed to have a height greater than that of the first fuel tank and arranged below the second kick-up portion.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 26, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao Tohda, Kouji Iwasaka, Katsumasa Sogame, Shigeyuki Mori
  • Publication number: 20060220405
    Abstract: A structure for arrangement of engine-associated components including a main battery and a secondary battery which together constitute a power supply system of a vehicle is such that a fresh air duct serving as a fresh air conduit is laid at a forward part of an engine room, an engine body is installed at a rear part of the engine room and fresh air drawn in through the fresh air duct is supplied to the engine body through an intake air passage, wherein the main battery is disposed on one side of the engine body and the secondary battery is disposed on one side of the main battery.
    Type: Application
    Filed: February 28, 2006
    Publication date: October 5, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Haruo Ohe, Kouji Iwasaka, Yukio Nakamura
  • Publication number: 20050061498
    Abstract: In an air conditioner for a vehicle including a vehicle roof capable of opening, there are provided a driver seat and a passenger seat which are provided at right and left sides in a vehicle compartment, plural conditioned-air blowoff ports provided for the driver seat and the passenger seat respectively, and an air conditioning control device operative to adjust respective characteristics of conditioned air for the driver seat and the passenger seat, separately. Accordingly, needs of each passenger on the driver seat and the passenger seat during a vehicle driving with the vehicle roof open can be attained, thereby improving comfortableness of air conditioning.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 24, 2005
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao Tohda, Kouji Iwasaka
  • Publication number: 20050011640
    Abstract: A rear air conditioning unit is disposed behind a rear bulkhead separating a rear portion of a passenger compartment. The rear air conditioning unit takes in inside-and-outside air for air conditioning via a rear cowl portion disposed above the rear bulkhead head and blows off conditioned air into the passenger compartment. Accordingly, since a layout of an air conditioning unit disposed at the front side of the vehicle is omitted, an engine as a heavy article can be located at the center side of the vehicle and a yaw inertia moment of the vehicle can be reduced, thereby improving maneuverability and stability of the vehicle and dynamic performance of the vehicle. Further, a layout of the rear air conditioning unit and induction of the inside-and-outside air can be made compatible.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 20, 2005
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao Tohda, Kouji Iwasaka, Yukio Nakamura
  • Publication number: 20050006168
    Abstract: In a vehicle, a cowl portion for supporting a front end of a windshield is disposed above the dash panel so as to extend in a width direction of the vehicle, an instrument panel member is located backward away from the cowl portion so as to extend in the width direction of the vehicle above the dash panel, a recess portion is formed in such manner that a central portion of the dash panel in the width direction of the vehicle is recessed backward from the cowl portion to the instrument panel member, and the driving device for the vehicle is disposed in the recess portion such that the driving device is located in front of and close to the instrument panel member.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 13, 2005
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kouji Iwasaka, Isao Tohda, Yukio Nakamura
  • Patent number: 6767044
    Abstract: A roof construction for a vehicle that uncovers a roof space above a passenger compartment of a vehicle body and covers the roof space, partly or fully, comprises a roof assembly, e.g. front, intermediate and rear roof panels, that is movable relatively to the vehicle body in a longitudinal direction of the vehicle body so as to selectively shift between three positions, namely a closed position where the roof space is fully closed, a partly open position where the roof space is partly open and a fully open position where the roof space is fully open and a prop link mechanism operative to shift the roof assembly into a selected one of the three positions and to fixedly support the roof assembly in the selected position. During shifting the roof assembly into a selected position, the front and intermediate roof panels are superposed and held horizontally in position.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: July 27, 2004
    Assignee: Mazda Motor Corporation
    Inventors: Isao Tohda, Haruo Ohe, Kouji Iwasaka
  • Patent number: 6702363
    Abstract: A vehicle with a folding hard roof is provided with a rear passenger space between front and rear seats that is suitably expanded by turning a rear seatback forward down and then moving the rear seatback backward so as to receive the folding hard roof retracted therein.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: March 9, 2004
    Assignee: Mazda Motor Corporation
    Inventors: Isao Tohda, Haruo Ohe, Kouji Iwasaka
  • Publication number: 20030160475
    Abstract: A vehicle with a folding hard roof is provided with a rear passenger space between front and rear seats that is suitably expanded by turning a rear seatback forward down and then moving the rear seatback backward so as to receive the folding hard roof retracted therein.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 28, 2003
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao Tohda, Haruo Ohe, Kouji Iwasaka
  • Publication number: 20030057727
    Abstract: A roof construction for a vehicle that uncovers a roof space above a passenger compartment of a vehicle body and covers the roof space, partly or fully, comprises a roof assembly, e.g. front, intermediate and rear roof panels, that is movable relatively to the vehicle body in a longitudinal direction of the vehicle body so as to selectively shift between three positions, namely a closed position where the roof space is fully closed, a partly open position where the roof space is partly open and a fully open position where the roof space is fully open and a prop link mechanism operative to shift the roof assembly into a selected one of the three positions and to fixedly support the roof assembly in the selected position. During shifting the roof assembly into a selected position, the front and intermediate roof panels are superposed and held horizontally in position.
    Type: Application
    Filed: August 26, 2002
    Publication date: March 27, 2003
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao Tohda, Haruo Ohe, Kouji Iwasaka