Patents by Inventor Isato Hirasawa

Isato Hirasawa 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: 10837162
    Abstract: A toilet device includes a toilet main body, a base plate-which is provided on an upper portion of the toilet main body and on which a functional unit is mounted, and a cover which covers the base plate from an upper side such that the functional unit is accommodated. The cover has a protrusion portion that protrudes further downward than the base plate and that is positioned closer to a toilet bowl of the toilet main body than the base plate. A recess portion, which communicates with the toilet bowl and is open to the upper side, is formed in the toilet main body. The base plate is arranged on the recess portion.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 17, 2020
    Assignee: LIXIL Corporation
    Inventors: Isato Hirasawa, Saori Ichihara, Kentarou Tsuji, Hiroto Kutsuzawa, Tomoya Sasaki, Hiroaki Watanabe, Yuji Nakayama, Tsunaki Itou, Miyoko Tateishi
  • Patent number: 10463208
    Abstract: A toilet seat/toilet lid device includes a toilet seat and a toilet lid that are provided to be pivotable with respect to a toilet between an erected state and a laid state; a toilet seat drive device that is configured to cause the toilet seat to pivot; a toilet seat pivot shaft that extends from the toilet seat drive device to one side of the toilet in a width direction, pivotably supports the toilet seat and supports the toilet lid; a toilet lid drive device that is configured to cause the toilet lid to pivot; and a toilet lid pivot shaft that extends from the toilet lid drive device to the other side of the toilet in the width direction, pivotably supports the toilet lid, and supports the toilet seat.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: November 5, 2019
    Assignee: LIXIL Corporation
    Inventors: Yudai Morikawa, Isato Hirasawa
  • Patent number: 10450735
    Abstract: In a flush toilet, a base plate, in which a function unit is installed, is provided on a recessed portion formed on a rear upper surface of a toilet bowl of a toilet main body. Hole portions that are open downward are provided in the recessed portion. The base plate is provided with bottomed protrusion portions fitted into the hole portions and accommodates a part of the function unit. Flow channels are provided between the base plate and the recessed portion, so that water inside the toilet bowl is discharged to a floor surface from the flow channels from the hole portions before the water overflows.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 22, 2019
    Assignee: LIXIL Corporation
    Inventors: Saori Ichihara, Isato Hirasawa, Tomoya Sasaki, Takeya Ichiyanagi, Makoto Saruta
  • Publication number: 20190153712
    Abstract: A flush toilet includes: a toilet main body; a rim which is provided on an upper portion of a toilet bowl of the toilet main body and which flows a flush water into the toilet bowl; and a water level detection sensor which is provided inside the rim.
    Type: Application
    Filed: February 16, 2017
    Publication date: May 23, 2019
    Applicant: LIXIL Corporation
    Inventors: Saori ICHIHARA, Isato HIRASAWA, Tomoya SASAKI, Takeya ICHIYANAGI, Sou OKUIZUMI, Makoto SARUTA
  • Publication number: 20190112797
    Abstract: A toilet device includes a toilet main body, a base plate-which is provided on an upper portion of the toilet main body and on which a functional unit is mounted, and a cover which covers the base plate from an upper side such that the functional unit is accommodated. The cover has a protrusion portion that protrudes further downward than the base plate and that is positioned closer to a toilet bowl of the toilet main body than the base plate. A recess portion, which communicates with the toilet bowl and is open to the upper side, is formed in the toilet main body. The base plate is arranged on the recess portion.
    Type: Application
    Filed: March 27, 2017
    Publication date: April 18, 2019
    Applicant: LIXIL Corporation
    Inventors: Isato HIRASAWA, Saori ICHIHARA, Kentarou TSUJI, Hiroto KUTSUZAWA, Tomoya SASAKI, Hiroaki WATANABE, Yuji NAKAYAMA, Tsunaki ITOU, Miyoko TATEISHI
  • Publication number: 20190032319
    Abstract: In a flush toilet, a base plate, in which a function unit is installed, is provided on a recessed portion formed on a rear upper surface of a toilet bowl of a toilet main body. Hole portions that are open downward are provided in the recessed portion. The base plate is provided with bottomed protrusion portions fitted into the hole portions and accommodates a part of the function unit. Flow channels are provided between the base plate and the recessed portion, so that water inside the toilet bowl is discharged to a floor surface from the flow channels from the hole portions before the water overflows.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 31, 2019
    Applicant: LIXIL Corporation
    Inventors: Saori ICHIHARA, Isato HIRASAWA, Tomoya SASAKI, Takeya ICHIYANAGI, Makoto SARUTA
  • Publication number: 20190000284
    Abstract: A toilet seat/toilet lid device includes a toilet seat and a toilet lid that are provided to be pivotable with respect to a toilet between an erected state and a laid state; a toilet seat drive device that is configured to cause the toilet seat to pivot; a toilet seat pivot shaft that extends from the toilet seat drive device to one side of the toilet in a width direction, pivotably supports the toilet seat and supports the toilet lid; a toilet lid drive device that is configured to cause the toilet lid to pivot; and a toilet lid pivot shaft that extends from the toilet lid drive device to the other side of the toilet in the width direction, pivotably supports the toilet lid, and supports the toilet seat.
    Type: Application
    Filed: January 4, 2017
    Publication date: January 3, 2019
    Applicant: LIXIL Corporation
    Inventors: Yudai MORIKAWA, Isato HIRASAWA
  • Patent number: 10136775
    Abstract: A toilet bowl apparatus includes: a toilet bowl main body; a functional part installed at an upper section of the toilet bowl main body; a seal member attached to at least one of the toilet bowl main body and the functional part and disposed in a gap between the toilet bowl main body and the functional part, and the seal member includes a soft seal body and an elastic body covered by the soft seal body.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: November 27, 2018
    Assignee: Lixil Corporation
    Inventors: Saori Ichihara, Isato Hirasawa, Yasuhiro Kondo, Takeya Ichiyanagi
  • Publication number: 20170290475
    Abstract: A toilet bowl apparatus includes: a toilet bowl main body; a functional part installed at an upper section of the toilet bowl main body; a seal member attached to at least one of the toilet bowl main body and the functional part and disposed in a gap between the toilet bowl main body and the functional part, and the seal member includes a soft seal body and an elastic body covered by the soft seal body.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Inventors: Saori Ichihara, Isato Hirasawa, Yasuhiro Kondo, Takeya Ichiyanagi