Patents by Inventor Yuhji Ohnishi

Yuhji Ohnishi 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).

  • EXTENSION TUBE FOR ELECTRIC VACUUM CLEANER
    Publication number: 20210093141
    Abstract: Provided is an extension tube for electric vacuum cleaner, which has a reduced weight, is easier to grip, and is easier to operate. This extension tube for electric vacuum cleaner connects the intake port body having an intake port with the vacuum cleaner body which is connected to the intake port body and which sucks in dust via the intake port, the extension tube being characterized by having a pipe made from dry carbon.
    Type: Application
    Filed: February 8, 2017
    Publication date: April 1, 2021
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: YASUHIRO OKA, YUHJI OHNISHI
  • Self-propelled vacuum cleaner
    Patent number: 10512382
    Abstract: To prevent a self-propelled vacuum cleaner from falling down an inclined surface, even if the remaining capacity of the battery becomes zero when the cleaner is located on the inclined surface.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 24, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshihiro Senoo, Yuhji Ohnishi
  • EXTENSION TUBE FOR ELECTRIC VACUUM CLEANER
    Publication number: 20190208974
    Abstract: The purpose of the present invention is to provide an extension tube for electric vacuum cleaner, which has a reduced weight, is easier to grip, and is easier to operate. This extension tube for electric vacuum cleaner comprises a tube body and a conductive unit provided so as to pass through the interior of the tube body. The conductive unit has a conductive cable and a hollow plate which accommodates the conductive cable.
    Type: Application
    Filed: February 8, 2017
    Publication date: July 11, 2019
    Inventors: YASUHIRO OKA, YUHJI OHNISHI
  • SELF-PROPELLED VACUUM CLEANER
    Publication number: 20180070788
    Abstract: To prevent a self-propelled vacuum cleaner from falling down an inclined surface, even if the remaining capacity of the battery becomes zero when the cleaner is located on the inclined surface.
    Type: Application
    Filed: February 29, 2016
    Publication date: March 15, 2018
    Inventors: TOSHIHIRO SENOO, YUHJI OHNISHI
  • Cleaning robot
    Patent number: 9113762
    Abstract: A cleaning robot that discharges, upwards and from an exhaust port (7), airflow having dust removed therefrom, and comprises: a main case (2) having a suction port (6) opened in the bottom surface thereof and the exhaust port (7) opened in the upper surface thereof, and that is self-propelled on a floor surface (F); an electric fan (22) arranged inside the main case (2); and a dust collection unit (30) that collects dust in airflow sucked in from the suction port (6) by the driving force of the electric fan (22).
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 25, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhji Ohnishi, Jitsuo Sakamoto
  • Cleaning robot
    Patent number: 9084518
    Abstract: A cleaning robot that discharges, upwards and from an exhaust port (7), airflow having dust removed therefrom, and comprises: a main case (2) having a suction port (6) opened in the bottom surface thereof and the exhaust port (7) opened in the upper surface thereof, and that is self-propelled on a floor surface (F); an electric fan (22) arranged inside the main case (2); and a dust collection unit (30) that collects dust in airflow sucked in from the suction port (6) by the driving force of the electric fan (22).
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: July 21, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhji Ohnishi, Jitsuo Sakamoto
  • CLEANING ROBOT
    Publication number: 20140189976
    Abstract: A cleaning robot that discharges, upwards and from an exhaust port (7), airflow having dust removed therefrom, and comprises: a main case (2) having a suction port (6) opened in the bottom surface thereof and the exhaust port (7) opened in the upper surface thereof, and that is self-propelled on a floor surface (F); an electric fan (22) arranged inside the main case (2); and a dust collection unit (30) that collects dust in airflow sucked in from the suction port (6) by the driving force of the electric fan (22).
    Type: Application
    Filed: August 17, 2012
    Publication date: July 10, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuhji Ohnishi, Jitsuo Sakamoto