Patents by Inventor Kazuyoshi MIZOGUCHI

Kazuyoshi MIZOGUCHI 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: 10662634
    Abstract: The bowl portion of the flush toilet includes a bowl-shaped waste receiving surface and a rim portion formed on a top edge of the bowl portion. The rim portion includes a rim inside wall portion located on an inner side of the top edge of the bowl portion. The rim inside wall portion has a rim inside surface located at a lower area of the rim inside wall portion and a rim inside wall upper sloped surface having a section in a vertical plane, the shape of the section being sloped from an upper edge of the rim inside surface to an upper edge of the rim inside wall portion. The ratio between the height of the rim inside surface and the height of the rim inside wall upper sloped surface is 1:1 to 6:1 in a section in a vertical plane at any area other than a rear area.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 26, 2020
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Masaki Kitamura, Satoshi Yamakawa, Kazuyoshi Mizoguchi
  • Patent number: 10619337
    Abstract: The bowl portion of the flush toilet includes a bowl-shaped waste receiving surface and a rim portion formed on a top edge of the bowl portion. The rim portion includes a rim inside wall portion located on an inner side of the top edge of the bowl portion. The rim inside wall portion has a rim inside surface located at a lower area of the rim inside wall portion and a rim inside wall upper sloped surface having a section in a vertical plane, the shape of the section being sloped from an upper edge of the rim inside surface to an upper edge of the rim inside wall portion. The ratio between the height of the rim inside surface and the height of the rim inside wall upper sloped surface is 1:1 to 6:1 in a section in a vertical plane at any area other than a rear area.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 14, 2020
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Masaki Kitamura, Satoshi Yamakawa, Kazuyoshi Mizoguchi
  • Patent number: 10301809
    Abstract: A flush toilet having a bowl portion including a bowl-shaped waste receiving surface and a rim portion wherein the rim portion includes a rim top inside corner portion, and a rim top outside corner portion, and in at least part of the entire perimeter of the rim portion, the rounding of the rim top inside corner portion is formed to be larger than the rounding of the rim top outside corner portion. This rim profile enables the rim portion top surface, the rim top inside corner portion, and the inside wall can be efficiently cleaned.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 28, 2019
    Assignee: TOTO LTD.
    Inventors: Masaki Kitamura, Satoshi Yamakawa, Kazuyoshi Mizoguchi, Shu Kashirajima
  • Patent number: 10077547
    Abstract: A flush toilet wherein the rim inside wall portion comprises a rim inside wall upper sloped surface, and an improvement in user visibility and user rim portion cleanability is sought, flush water can be constrained from splashing outside the bowl portion by traveling by centrifugal force along the rim inside wall upper sloped surface from the inside surface formed at a relatively low height. The rim portion of the flush toilet of the invention includes a rim inside wall portion; the rim inside wall portion comprises a rim inside wall upper sloped surface, and an inside surface vertically extending straight up to the rim inside wall upper sloped surface; and the water supply apparatus comprises a constant flow rate valve for spouting a predetermined constant flow rate of flush water from the water spouting portion.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: September 18, 2018
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Kyoji Asada, Satoshi Yamakawa, Kazuyoshi Mizoguchi, Masaki Kitamura
  • Patent number: 9850646
    Abstract: A flush toilet includes: a bowl portion; a rim portion disposed on a top edge of the bowl portion; a spout portion for spouting flush water supplied from the water supply source to the bowl portion to form a circulating current; a discharge passage for discharging waste in the bowl portion, an inlet portion of the discharge passage being connected at the bottom of the bowl portion; a sanitary washing device disposed at a rear of the bowl portion, the sanitary washing device including a nozzle for spraying flush water toward a user positioned over the bowl portion; and a skirt portion disposed to respectively cover sides of both the bowl portion and the discharge passage.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 26, 2017
    Assignee: TOTO LTD.
    Inventors: Kazuyoshi Mizoguchi, Satoshi Yamakawa, Masaki Kitamura, Shu Kashirajima
  • Publication number: 20170275862
    Abstract: A flush toilet wherein the rim inside wall portion comprises a rim inside wall upper sloped surface, and an improvement in user visibility and user rim portion cleanability is sought, flush water can be constrained from splashing outside the bowl portion by traveling by centrifugal force along the rim inside wall upper sloped surface from the inside surface formed at a relatively low height. The rim portion of the flush toilet of the invention includes a rim inside wall portion; the rim inside wall portion comprises a rim inside wall upper sloped surface, and an inside surface vertically extending straight up to the rim inside wall upper sloped surface; and the water supply apparatus comprises a constant flow rate valve for spouting a predetermined constant flow rate of flush water from the water spouting portion.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 28, 2017
    Applicant: TOTO LTD.
    Inventors: Shu KASHIRAJIMA, Kyoji ASADA, Satoshi YAMAKAWA, Kazuyoshi MIZOGUCHI, Masaki KITAMURA
  • Publication number: 20170226725
    Abstract: The bowl portion of the flush toilet includes a bowl-shaped waste receiving surface and a rim portion formed on a top edge of the bowl portion. The rim portion includes a rim inside wall portion located on an inner side of the top edge of the bowl portion. The rim inside wall portion has a rim inside surface located at a lower area of the rim inside wall portion and a rim inside wall upper sloped surface having a section in a vertical plane, the shape of the section being sloped from an upper edge of the rim inside surface to an upper edge of the rim inside wall portion. The ratio between the height of the rim inside surface and the height of the rim inside wall upper sloped surface is 1:1 to 6:1 in a section in a vertical plane at any area other than a rear area.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 10, 2017
    Applicant: TOTO LTD.
    Inventors: Shu KASHIRAJIMA, Masaki KITAMURA, Satoshi YAMAKAWA, Kazuyoshi MIZOGUCHI
  • Patent number: 9702135
    Abstract: A flush toilet wherein the rim inside wall portion comprises a rim inside wall upper sloped surface, and an improvement in user visibility and user rim portion cleanability is sought, flush water can be constrained from splashing outside the bowl portion by traveling by centrifugal force along the rim inside wall upper sloped surface from the inside surface formed at a relatively low height. The rim portion of the flush toilet of the invention includes a rim inside wall portion; the rim inside wall portion comprises a rim inside wall upper sloped surface, and an inside surface vertically extending straight up to the rim inside wall upper sloped surface; and the water supply apparatus comprises a constant flow rate valve for spouting a predetermined constant flow rate of flush water from the water spouting portion.
    Type: Grant
    Filed: March 12, 2016
    Date of Patent: July 11, 2017
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Kyoji Asada, Satoshi Yamakawa, Kazuyoshi Mizoguchi, Masaki Kitamura
  • Publication number: 20170138034
    Abstract: A flush toilet includes: a bowl portion; a rim portion disposed on a top edge of the bowl portion; a spout portion for spouting flush water supplied from the water supply source to the bowl portion to form a circulating current; a discharge passage for discharging waste in the bowl portion, an inlet portion of the discharge passage being connected at the bottom of the bowl portion; a sanitary washing device disposed at a rear of the bowl portion, the sanitary washing device including a nozzle for spraying flush water toward a user positioned over the bowl portion; and a skirt portion disposed to respectively cover sides of both the bowl portion and the discharge passage.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 18, 2017
    Inventors: Kazuyoshi MIZOGUCHI, Satoshi YAMAKAWA, Masaki KITAMURA, Shu KASHIRAJIMA
  • Patent number: 9650776
    Abstract: A flush toilet wherein at least a portion of the exterior part of an exterior member installed on a rim portion can be easily installed and registered at the height of the rim outer wall upper sloped surface, and seen from the toilet lateral direction, the border between at least a part of the exterior part of the exterior member and the rim outer wall upper sloped surface appears as a single aligned straight line, imparting an aesthetic impression to the user. The rim portion of the flush toilet of the invention includes a rim outer wall upper sloped surface being positioned in an outside of an upper region of the rim outer wall portion, and at least a portion of the exterior part is disposed at the height of the rim outer wall upper sloped surface.
    Type: Grant
    Filed: March 12, 2016
    Date of Patent: May 16, 2017
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Masaki Kitamura, Satoshi Yamakawa, Kazuyoshi Mizoguchi
  • Publication number: 20160273205
    Abstract: To provide a flush toilet wherein the rim inside wall portion comprises a rim inside wall upper sloped surface, and an improvement in user visibility and user rim portion cleanability is sought, flush water can be constrained from splashing outside the bowl portion by traveling by centrifugal force along the rim inside wall upper sloped surface from the inside surface formed at a relatively low height. The rim portion of the flush toilet 1 of the invention includes a rim inside wall portion 52; the rim inside wall portion 52 comprises a rim inside wall upper sloped surface 52a, and an inside surface 52b vertically extending straight up to the rim inside wall upper sloped surface; and the water supply apparatus 6 comprises a constant flow rate valve 16 for spouting a predetermined constant flow rate of flush water from the water spouting portion.
    Type: Application
    Filed: March 12, 2016
    Publication date: September 22, 2016
    Inventors: Shu KASHIRAJIMA, Kyoji ASADA, Satoshi YAMAKAWA, Kazuyoshi MIZOGUCHI, Masaki KITAMURA
  • Publication number: 20160273206
    Abstract: A flush toilet is provided wherein at least a portion of the exterior part of an exterior member installed on a rim portion can be easily installed and registered at the height of the rim outer wall upper sloped surface, and seen from the toilet lateral direction, the border between at least a part of the exterior part of the exterior member and the rim outer wall upper sloped surface appears as a single aligned straight line, imparting an aesthetic impression to the user. The rim portion 46 of the flush toilet 1 of the invention includes a rim outer wall upper sloped surface 56a being positioned in an outside of an upper region of the rim outer wall portion 56, and at least a portion of the exterior part is disposed at the height of the rim outer wall upper sloped surface 56a.
    Type: Application
    Filed: March 12, 2016
    Publication date: September 22, 2016
    Inventors: Shu KASHIRAJIMA, Masaki KITAMURA, Satoshi YAMAKAWA, Kazuyoshi MIZOGUCHI
  • Publication number: 20160138255
    Abstract: A flush toilet having a bowl portion including a bowl-shaped waste receiving surface and a rim portion wherein the rim portion includes a rim top inside corner portion, and a rim top outside corner portion, and in at least part of the entire perimeter of the rim portion, the rounding of the rim top inside corner portion is formed to be larger than the rounding of the rim top outside corner portion. This rim profile enables the rim portion top surface, the rim top inside corner portion, and the inside wall can be efficiently cleaned.
    Type: Application
    Filed: September 28, 2015
    Publication date: May 19, 2016
    Inventors: Masaki KITAMURA, Satoshi YAMAKAWA, Kazuyoshi MIZOGUCHI, Shu KASHIRAJIMA