Patents by Inventor Keiji Bouda

Keiji Bouda 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).

  • Power transmission apparatus with centrifugal pendulum damper
    Patent number: 10677314
    Abstract: A power transmission apparatus with a centrifugal pendulum damper is realized, which can effectively suppress torque fluctuation and vibration noise of a vehicle while avoiding size increase of a centrifugal pendulum damper and deterioration of reliability of the centrifugal pendulum damper by high-speed rotation. A power transmission apparatus with a centrifugal pendulum damper includes: a centrifugal pendulum damper coupled to an input shaft through a speed-increasing mechanism configured to increase speed of rotation of the input shaft; and an engagement/disengagement mechanism capable of realizing and cutting off power transmission from the input shaft to the centrifugal pendulum damper.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 9, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Kyosei Nakashima, Kazuhiro Tanaka, Norio Iwashita, Shinya Kamada, Hiroo Akagi, Tomokazu Kinoshita, Hiroyuki Okayama, Narihito Hongawara, Keiji Bouda
  • POWER TRANSMISSION APPARATUS WITH CENTRIFUGAL PENDULUM DAMPER
    Publication number: 20180283492
    Abstract: A power transmission apparatus with a centrifugal pendulum damper is realized, which can effectively suppress torque fluctuation and vibration noise of a vehicle while avoiding size increase of a centrifugal pendulum damper and deterioration of reliability of the centrifugal pendulum damper by high-speed rotation. A power transmission apparatus with a centrifugal pendulum damper includes: a centrifugal pendulum damper coupled to an input shaft through a speed-increasing mechanism configured to increase speed of rotation of the input shaft; and an engagement/disengagement mechanism capable of realizing and cutting off power transmission from the input shaft to the centrifugal pendulum damper.
    Type: Application
    Filed: September 26, 2016
    Publication date: October 4, 2018
    Inventors: Kyosei Nakashima, Kazuhiro Tanaka, Norio Iwashita, Shinya Kamada, Hiroo Akagi, Tomokazu Kinoshita, Hiroyuki Okayama, Narihito Hongawara, Keiji Bouda
  • Automatic transmission system for a vehicle
    Patent number: 4858498
    Abstract: A control system for automatic transmissions having a multiple stage transmission gear mechanism in which shift control is accomplished based on an automatic shift control mode or a holding mode wherein a higher gear stage is selected under the holding mode and when a predetermined driving condition is detected, a shift down control is carried out so as to obtain a desirable feeling in a reacceleration operation.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: August 22, 1989
    Assignee: Mazda Motor Corporation
    Inventor: Keiji Bouda