Patents by Inventor Masaki Kitamura

Masaki Kitamura 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).

  • Publication number: 20200298595
    Abstract: A conveyance device includes a support having a support face configured to support a conveyed object and a fluid introduction device disposed outside the support. The fluid introduction device is configured to introduce a fluid between the support face of the support and the conveyed object, to form a fluid layer for floating the conveyed object. The conveyance device further includes a conveyor configured to convey the conveyed object being floating from the support via the fluid layer.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 24, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Masaki Kitamura
  • 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: 10287766
    Abstract: A flush toilet is provided, which can restrain flushing water from excessively flowing down to an inner side of a bowl section before the flushing water reaches an upper end portion of a rising flow path, and can effectively restrain from occurring an unwashed region in the bowl section. A flush toilet of the present invention has a bowl section, and the bowl section forms a water conduit formed between the waste receiving surface and the rim section, and the water conduit includes a shelf portion forming an inclined surface lowering toward an outer side from an inner side of the bowl section, or a horizontal surface formed horizontally toward the outer side from the inner side of the bowl section, in at least a part of a rising flow path rising from a low portion of the water conduit.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: May 14, 2019
    Assignee: TOTO LTD.
    Inventors: Masaaki Momoe, Shu Kashirajima, Masaki Kitamura
  • Patent number: 10167618
    Abstract: A flush toilet for cleaning a toilet main body and discharging waste by using flush water is disclosed. The flush toilet contains a bowl portion including a bowl shaped waste-receiving surface and a rim portion formed on a top edge of the waste-receiving surface, the rim portion having an inner circumferential surface whose top portion is configured to rises vertically. The bowl portion contains a front region, the front region includes a first arc-shaped surface having a curvature R1 in a horizontal direction of a top portion of the waste-receiving surface and a second arc-shaped surface having a curvature R2 in a vertical direction formed by the inner circumferential surface of the rim portion and the waste-receiving surface, and the ratio of the curvature R1 to the curvature R2 is in a range of 1:3 to 3:1.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: January 1, 2019
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Masaaki Momoe, Masaki Kitamura
  • Patent number: 10151094
    Abstract: A flush toilet includes a bowl having a waste-receiving surface and a rim; the bowl comprises a front region on the front side of a center line extending in the left-right direction and equally dividing the bowl in the front-rear direction, and a rear region on the rear side thereof; whereby on either the left or right side in the front area of the bowl, on the rim, a rim water passageway is formed for passing flush water supplied from a conduit, and a rim spout port is formed, and the rim water passageway comprises: an outside passageway extending from the inlet thereof through the rim interior toward the front; a bent passageway bending inward from the downstream end of this outside passageway; and an inside passageway extending from this bent passageway toward the rear, up to the rim spout port.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 11, 2018
    Assignee: TOTO LTD.
    Inventors: Shu Kashirajima, Yuki Shimokawa, Masaki Kitamura, Yuuki Shinohara, Masaaki Momoe
  • 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: 9995029
    Abstract: To provide a flush toilet in which: a circulating flow can be formed to uniformly circulate over a waste receiving surface while flushing; localized changes in external appearance of a toilet main body can be inhibited; and impression of a left-right symmetrical external shape can be conveyed to users so that design characteristics thereof are favorably preserved. A rim portion in a flush toilet includes a slit opening portion formed between an upper edge portion of the waste receiving surface formed to be left-right asymmetrical and a rim inside wall formed to be left-right symmetrical. The slit opening portion is formed such that a slit gap on one side, to which a connecting water conduit is directed, is smaller than a slit gap on the other side. A circulating flow is formed on the waste-receiving surface by flush water spouted from the slit opening portion having the different slit gaps.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 12, 2018
    Assignee: TOTO LTD.
    Inventors: Naoto Matsuo, Eiji Shiohara, Masaki Kitamura, Masaaki Inoue
  • Publication number: 20170370086
    Abstract: A flush toilet is provided, which can restrain flushing water from excessively flowing down to an inner side of a bowl section before the flushing water reaches an upper end portion of a rising flow path, and can effectively restrain from occurring an unwashed region in the bowl section. A flush toilet of the present invention has a bowl section, and the bowl section forms a water conduit formed between the waste receiving surface and the rim section, and the water conduit includes a shelf portion forming an inclined surface lowering toward an outer side from an inner side of the bowl section, or a horizontal surface formed horizontally toward the outer side from the inner side of the bowl section, in at least a part of a rising flow path rising from a low portion of the water conduit.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 28, 2017
    Applicant: TOTO LTD.
    Inventors: Masaaki MOMOE, Shu KASHIRAJIMA, 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: 20170260730
    Abstract: A flush toilet includes a bowl having a waste-receiving surface and a rim; the bowl comprises a front region on the front side of a center line extending in the left-right direction and equally dividing the bowl in the front-rear direction, and a rear region on the rear side thereof; whereby on either the left or right side in the front area of the bowl, on the rim, a rim water passageway is formed for passing flush water supplied from a conduit, and a rim spout port is formed, and the rim water passageway comprises: an outside passageway extending from the inlet thereof through the rim interior toward the front; a bent passageway bending inward from the downstream end of this outside passageway; and an inside passageway extending from this bent passageway toward the rear, up to the rim spout port.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 14, 2017
    Applicant: TOTO LTD.
    Inventors: Shu KASHIRAJIMA, Yuki SHIMOKAWA, Masaki KITAMURA, Yuuki SHINOHARA, Masaaki MOMOE
  • 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: 20170067241
    Abstract: A flush toilet for cleaning a toilet main body and discharging waste by using flush water is disclosed. The flush toilet contains a bowl portion including a bowl shaped waste-receiving surface and a rim portion formed on a top edge of the waste-receiving surface, the rim portion having an inner circumferential surface whose top portion is configured to rises vertically. The bowl portion contains a front region, the front region includes a first arc-shaped surface having a curvature R1 in a horizontal direction of a top portion of the waste-receiving surface and a second arc-shaped surface having a curvature R2 in a vertical direction formed by the inner circumferential surface of the rim portion and the waste-receiving surface, and the ratio of the curvature R1 to the curvature R2 is in a range of 1:3 to 3:1.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 9, 2017
    Inventors: Shu KASHIRAJIMA, Masaaki MOMOE, Masaki KITAMURA
  • Patent number: D810900
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 20, 2018
    Assignee: TOTO, Ltd.
    Inventors: Masaki Kitamura, Shu Kashirajima, Yuki Shimokawa, Yuji Yoshioka, Hirotaka Nakabayashi
  • Patent number: D831802
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 23, 2018
    Assignee: TOTO, Ltd.
    Inventors: Masaki Kitamura, Shu Kashirajima, Yuki Shimokawa, Yuji Yoshioka, Hirotaka Nakabayashi