Patents by Inventor Fumihiro OHSAWA

Fumihiro OHSAWA 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: 10253879
    Abstract: Provided is a transmission control system that enables more precise control of the transmission ratio. This transmission control system is provided with a motor, an actuator, a transmission, a position sensor, a current sensor, and a control unit. The control unit includes: a drive unit that drives the motor while the vehicle is stopped; and a first estimation unit that estimates the initial transmission ratio, which indicates the transmission ratio when the ignition switch is turned on, on the basis of a rotation position detected by the position sensor, a load current detected by the current sensor, and a characteristic curve over a period during which the drive unit is operating.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 9, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroyuki Sakamoto, Hideki Sekiguchi, Fumihiro Ohsawa, Yuta Tanaka
  • Publication number: 20180266551
    Abstract: Provided is a transmission control system that enables more precise control of the transmission ratio. This transmission control system is provided with a motor, an actuator, a transmission, a position sensor, a current sensor, and a control unit. The control unit includes: a drive unit that drives the motor while the vehicle is stopped; and a first estimation unit that estimates the initial transmission ratio, which indicates the transmission ratio when the ignition switch is turned on, on the basis of a rotation position detected by the position sensor, a load current detected by the current sensor, and a characteristic curve over a period during which the drive unit is operating.
    Type: Application
    Filed: January 29, 2016
    Publication date: September 20, 2018
    Inventors: Hiroyuki SAKAMOTO, Hideki SEKIGUCHI, Fumihiro OHSAWA, Yuta TANAKA
  • Patent number: 9593620
    Abstract: A muffler hanger including: a displacement suppress member integrally provided with upper and lower support parts and a junction part that joins the support parts to each other at their lengthwise middle parts; and mounting rubbers that connect the support parts to each other at lengthwise both sides and each includes a pair of arch shaped parts having a mounting hole. The displacement suppress member is configured to attach to one of a vehicle body and a muffler. By inserting mounting parts provided to the other of the vehicle body and the muffler into the corresponding mounting hole, the mounting rubbers are configured to attach thereto. A displacement regulator that limits a relative displacement volume of the muffler in relation to the vehicle body is constituted by abutment of the mounting parts against the displacement suppress member.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 14, 2017
    Assignees: SUMITOMO RIKO COMPANY LIMITED, HONDA MOTOR CO., LTD.
    Inventors: Takashi Makino, Fumihiro Ohsawa
  • Publication number: 20150260076
    Abstract: A muffler hanger including: a displacement suppress member integrally provided with upper and lower support parts and a junction part that joins the support parts to each other at their lengthwise middle parts; and mounting rubbers that connect the support parts to each other at lengthwise both sides and each includes a pair of arch shaped parts having a mounting hole. The displacement suppress member is configured to attach to one of a vehicle body and a muffler. By inserting mounting parts provided to the other of the vehicle body and the muffler into the corresponding mounting hole, the mounting rubbers are configured to attach thereto. A displacement regulator that limits a relative displacement volume of the muffler in relation to the vehicle body is constituted by abutment of the mounting parts against the displacement suppress member.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 17, 2015
    Inventors: Takashi MAKINO, Fumihiro OHSAWA