Patents by Inventor You Torizawa

You Torizawa 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: 11272820
    Abstract: A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 15, 2022
    Assignee: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
    Inventors: Tsuyoshi Sato, Masatoshi Tanaka, You Torizawa, Yukio Machida, Hiromitsu Ichikawa, Hiromitsu Murata, Takayoshi Shimizu, Yuuji Ohtsuka
  • Publication number: 20200315419
    Abstract: A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.
    Type: Application
    Filed: June 2, 2017
    Publication date: October 8, 2020
    Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
    Inventors: Tsuyoshi SATO, Masatoshi TANAKA, You TORIZAWA, Yukio MACHIDA, Hiromitsu ICHIKAWA, Hiromitsu MURATA, Takayoshi SHIMIZU, Yuuji OHTSUKA
  • Publication number: 20200178742
    Abstract: An electric vacuum cleaner and an electric vacuum cleaning apparatus that can accumulate dust intensively near its waste lid and can readily discharge the accumulated dust. An electric vacuum cleaner includes: a first separator that separates dust from dust-containing air; a coarse-dust collecting chamber that accumulates the dust separated with the first separator; a coarse-dust waste-outlet that discharges the dust from the coarse-dust collecting chamber; a recess part provided within the coarse-dust collecting chamber, communicates with the coarse-dust waste-outlet, and accumulates dust inside the coarse-dust collecting chamber; and a waste-outlet lid that is part of a wall of the recess part and opens and closes the coarse-dust waste-outlet.
    Type: Application
    Filed: June 22, 2018
    Publication date: June 11, 2020
    Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
    Inventors: Masatoshi TANAKA, You TORIZAWA, Yukio MACHIDA
  • Publication number: 20070011996
    Abstract: An electric vacuum cleaner including a main body, a filter located in a suction air trunk between an inlet to suck dust and a suction opening of an electric blower and provided in the main body to adsorb the dust, a filter dust-removal device to remove the dust attached to the filter, a dust receiving part to receive the dust removed from the filter and having an outlet through which the dust is discharged, and a dust discharge device configured to discharge the dust in the dust receiving part from the outlet, the dust discharge device having a discharge member configured to discharge dust from the outlet and to be capable of closing the outlet.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 18, 2007
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshihiro Tsuchiya, Masatoshi Tanaka, Atsushi Morishita, You Torizawa, Yasushi Takai, Mai Matsuno, Ai Tanaka, Mitsuru Watanabe, Akiko Tairaku, Ritsuo Takemoto, Yukio Machida