Patents by Inventor Takumi SHUDO

Takumi SHUDO 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).

  • Charging unit and charging system for self-propelled electric vacuum cleaner
    Patent number: 10199840
    Abstract: A charging unit for charging a battery of a self-propelled electric vacuum cleaner which runs on a floor based on outputs of an infrared beam reflection-type floor detection sensor and an infrared beam detection sensor, includes an infrared beam-transmitting unit for emitting an infrared beam for indicating a return path and an infrared beam-absorbing part, in which the infrared beam-transmitting unit and the infrared beam-absorbing part are provided such that the infrared beam detected by the infrared beam detection sensor and the infrared beam absorbing part detected by the floor detection sensor allow the vacuum cleaner to return to the charging unit.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: February 5, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takumi Shudo
  • CHARGING UNIT AND CHARGING SYSTEM FOR SELF-PROPELLED ELECTRIC VACUUM CLEANER
    Publication number: 20160352112
    Abstract: A charging unit for charging a battery of a self-propelled electric vacuum cleaner which runs on a floor based on outputs of an infrared beam reflection-type floor detection sensor and an infrared beam detection sensor, includes an infrared beam-transmitting unit for emitting an infrared beam for indicating a return path and an infrared beam-absorbing part, in which the infrared beam-transmitting unit and the infrared beam-absorbing part are provided such that the infrared beam detected by the infrared beam detection sensor and the infrared beam absorbing part detected by the floor detection sensor allow the vacuum cleaner to return to the charging unit.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 1, 2016
    Inventor: Takumi SHUDO