Patents by Inventor Nobuyuki Ikemoto

Nobuyuki Ikemoto 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: 7878286
    Abstract: A tunnel-expansion portion is provided at a front portion of a tunnel portion. The tunnel-expansion portion projects upward greatly and widely so as to provide components of an exhaust system that extend rearward from an exhaust manifold therein (outside a vehicle compartment). Accordingly, there can be provided a front structure of a vehicle, in which an engine is laterally disposed in an engine room at a front portion of the vehicle, an intake pipe is disposed in front of the engine, and an exhaust pipe is disposed in back of the engine, which can improve an exhaust efficiency and a vehicle safety against a vehicle crash, without providing an improperly-large longitudinal space between the engine and the dash panel.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 1, 2011
    Assignee: Mazda Motor Corporation
    Inventors: Taichi Kobayashi, Yukiichirou Shimada, Shirou Nakatani, Nobuyuki Ikemoto, Akifumi Ohno
  • Publication number: 20080251306
    Abstract: A tunnel-expansion portion is provided at a front portion of a tunnel portion. The tunnel-expansion portion projects upward greatly and widely so as to provide components of an exhaust system that extend rearward from an exhaust manifold therein (outside a vehicle compartment). Accordingly, there can be provided a front structure of a vehicle, in which an engine is laterally disposed in an engine room at a front portion of the vehicle, an intake pipe is disposed in front of the engine, and an exhaust pipe is disposed in back of the engine, which can improve an exhaust efficiency and a vehicle safety against a vehicle crash without providing an improperly-large longitudinal space between the engine and the dash panel.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Taichi KOBAYASHI, Yukiichirou SHIMADA, Shirou NAKATANI, Nobuyuki IKEMOTO, Akifumi OHNO
  • Patent number: 7347475
    Abstract: An automobile rear body structure capable of allowing a space created between a rear bumper reinforcing member and a line connecting respective rear ends of a pair of rear side frames to be effectively utilized. In this automobile rear body structure, a rear end cross member (30) has an expanded portion (31a) formed to expand rearward relative to respective rear ends (10a) of a pairs of rear side frames (10), and a rear floor pan (20) has a rear edge including a protruded portion (21). The protruded portion (21) is formed to protrude relative to the rear ends (10a) of the pairs of rear side frames (10) toward the expanded portion of the rear end cross member (30) and connected to the rear end cross member (30), so as to allow a luggage compartment space to be enlarged rearward relative to the rear ends (10a) of the pairs of rear side frames (10).
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 25, 2008
    Assignee: Mazda Motor Corporation
    Inventors: Nobuyuki Ikemoto, Yasuhiro Kohara, Shirou Nakatani, Kazue Sumida, Takao Maruko
  • Publication number: 20060103170
    Abstract: Disclosed is an automobile rear body structure capable of allowing a space created between a rear bumper reinforcing member and a line connecting respective rear ends of a pair of rear side frames to be effectively utilized. In this automobile rear body structure, a rear end cross member 30 has an expanded portion 31a formed to expand rearward relative to respective rear ends 10a of a pairs of rear side frames 10, and a rear floor pan 20 has a rear edge including a protruded portion 21. The protruded portion 21 is formed to protrude relative to the rear ends 10a of the pairs of rear side frames 10 toward the expanded portion of the rear end cross member 30 and connected to the rear end cross member 30, so as to allow a luggage compartment space to be enlarged rearward relative to the rear ends 10a of the pairs of rear side frames 10.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 18, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Nobuyuki Ikemoto, Yasuhiro Kohara, Shirou Nakatani, Kazue Sumida, Takao Maruko
  • Patent number: 5057062
    Abstract: A transfer case operation mode shifting apparatus used on a vehicle equipped with part-time four-wheel drive which having a center-differential shiftable between a differential-locked and differental-free drive mode of operation and between a two-wheel and a four-wheel drive mode of operation and a transfer shiftable between a high-speed range and a low-speed range drive mode of operation. The transfer case is shifted in its drive mode of operation by an operation mode selecting member for selecting a desired drive mode of operation. A power drive operation mode shifting device is provided in cooperation with the drive mode selecting member and a controller to actually shift the transfer case from one drive mode of operation to another. The controller is adapted to detect that the center-differential gear assembly of the transfer case is in a differential-locked four-wheel drive mode of operation so as to inhibit a transition of the center-differential to a two-wheel drive mode of operation.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: October 15, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Hirokazu Yamasaki, Nobuyuki Ikemoto, Masaaki Koto