Patents by Inventor Shigeru Takenaka

Shigeru Takenaka 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).

  • Driving assistance apparatus
    Patent number: 11643056
    Abstract: A driving assistance apparatus that includes a brake operation portion that applies a brake to a vehicle, the brake operation portion allowing a manual brake operation by a hand of a driver of the vehicle, the brake operation portion including a brake operation body and a grip portion to be gripped by the hand of the driver, the grip portion being provided at an upper end of the brake operation body, and a shift-down switch that shifts-down the vehicle is provided on the grip portion, the shift-down switch allowing a manual shift-down operation by the hand of the driver.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: May 9, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yutaka Sakuragi, Masaaki Aoki, Keiichi Yamasaki, Katsuhisa Maedo, Shigeru Takenaka, Kenichi Nakamoto
  • DRIVING ASSISTANCE APPARATUS
    Publication number: 20220219655
    Abstract: A driving assistance apparatus that includes a brake operation portion that applies a brake to a vehicle, the brake operation portion allowing a manual brake operation by a hand of a driver of the vehicle, the brake operation portion including a brake operation body and a grip portion to be gripped by the hand of the driver, the grip portion being provided at an upper end of the brake operation body, and a shift-down switch that shifts-down the vehicle is provided on the grip portion, the shift-down switch allowing a manual shift-down operation by the hand of the driver.
    Type: Application
    Filed: December 9, 2021
    Publication date: July 14, 2022
    Applicant: Mazda Motor Corporation
    Inventors: Yutaka SAKURAGI, Masaaki AOKI, Keiichi YAMASAKI, Katsuhisa MAEDO, Shigeru TAKENAKA, Kenichi NAKAMOTO
  • On-vehicle audio system reproducing bodily-sensible sounds
    Patent number: 5355419
    Abstract: An on-vehicle audio system reproducing bodily-sensible sounds is devised to rapidly eliminate masking of bodily-acoustic audio sounds caused by vibrations of a running vehicle and generate bodily-sensible sounds without giving an inharmonious feeling to the listener. The system has a low pass filter for extracting only low frequency band components of an input signal, an amplifier for amplifying the output of the low pass filter and delivering the amplified signal, a vibration unit disposed in a seat of the vehicle for converting the amplified signal to mechanical vibrations. To eliminate the masking, the system is provided with a vibration sensor for generating a vibration signal of a magnitude in accordance with vibrations of the vehicle, and a level adjusting unit for adjusting the level of the input signal in accordance with an average level of the vibration signal.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: October 11, 1994
    Assignee: Pioneer Electronic Corporation
    Inventors: Hideo Yamamoto, Shiro Kato, Yuji Fukata, Yoichi Satoh, Akihiro Suzuki, Kenji Suehiro, Shigeru Takenaka