Patents Assigned to Toto Ltd.
  • Patent number: 11976453
    Abstract: A sanitary washing device includes a private part washing nozzle, a casing, a sterilizing water generator, and an illuminator. The private part washing nozzle discharges water toward a private part of a user in a state of the private part washing nozzle is advanced into a toilet. The casing includes a nozzle storage part configured to store an entirety of the private part washing nozzle in a state of the private part washing nozzle is retracted. The sterilizing water generator generates sterilizing water supplied to the private part washing nozzle and the nozzle storage part. The illuminator irradiates sterilizing light into the nozzle storage part. The sterilizing light has a sterilizing action. The illuminator irradiates the sterilizing light toward a residual water occurrence portion at which the sterilizing water supplied into the nozzle storage part remains.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: May 7, 2024
    Assignee: TOTO LTD.
    Inventors: Toshinari Yaoka, Kazuma Baba, Satoru Matsumoto, Keisuke Tashiro
  • Patent number: 11967415
    Abstract: An excrement judgement system according to the embodiment including: an acquisition unit that acquires image information on an image in which excrement excreted in a defecation action per time is captured; a determination unit that determines properties of a plurality of stools included in the image information and stool amounts corresponding to the properties of the plurality of stools; and an outputting unit that associates the properties of the plurality of stools and the stool amounts corresponding to the properties of the plurality of stools that are determined by the determination unit, and outputs the associated properties and stool amounts to a device to be displayed.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignee: TOTO LTD.
    Inventors: Katsunori Ishii, Mayu Okubo
  • Patent number: 11965323
    Abstract: According to the embodiment, a toilet device includes a nozzle, a flow channel, a heat exchanger, and a flow channel unit. The flow channel unit is located upstream or downstream of the heat exchanger in the flow channel. The flow channel unit includes a flow rate sensor and a vacuum breaker. The flow rate sensor detects a flow rate of water. The vacuum breaker suppresses a backflow of water. The flow rate sensor includes a first case part and a sensor part. The sensor part is housed inside the first case part. The vacuum breaker includes a second case part and a valve part. The valve part is housed inside the second case part. At least a part of the first case part and at least a part of the second case part is formed of a continuous member.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: April 23, 2024
    Assignee: TOTO LTD.
    Inventors: Ikko Hatta, Shonosuke Sawa, Mizuki Ide, Yoshihiro Koto
  • Patent number: 11952764
    Abstract: A flush toilet according to embodiments includes: a toilet body, a function unit, a panel member, and a holding part. The function unit is arranged in a rear part of the toilet body. The panel member covers a side surface of the function unit. The holding part causes the toilet body and a side surface of the panel member to attract and hold to each other by using magnetic force. In a state where being attached to the toilet body, the panel member is formed to be curved toward the toilet body. The holding part is formed such that an attraction surface of a panel-side magnetic material that is provided to the panel member and an attraction surface of a body-side magnetic material that is provided to the toilet body are formed in plane-shaped.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: April 9, 2024
    Assignee: TOTO LTD.
    Inventors: Yusuke Tone, Masaaki Momoe, Eiji Shiohara
  • Patent number: 11950732
    Abstract: A toilet device includes an electric opening/closing unit including a motor and a transmission mechanism. The transmission mechanism includes an internal gear, a first transmission part and a second transmission part. The first transmission part transmits a rotational force of the motor. The second transmission part transmits a rotational force of the first transmission part. The first transmission part includes a first planetary gear and a first planetary carrier. The second transmission part includes a second planetary gear, a second planetary carrier, and a shaft part. The shaft part revolves around a rotation axis. The first planetary carrier includes a protrusion extends along a trajectory of the revolution of the shaft part. The shaft part contacts the protrusion. A gap is formed between the shaft part and a part of the first planetary carrier other than the protrusion.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: April 9, 2024
    Assignees: TOTO LTD., DAIICHI KASEI CO., LTD., YOKO INDUSTRY CO., LTD.
    Inventors: Hiroki Hata, Yuji Maruyama, Maya Teraoka, Haruki Suzuki, Toshihiko Shimizu
  • Patent number: 11946239
    Abstract: A flush toilet includes: a toilet body; a function unit arranged in a rear part of the toilet body; a panel member covering a side surface of the function unit and including a protruding part protruding toward the toilet body; and a holding part causing the toilet body and the panel member to hold to each other by magnetic force. The toilet body includes: a reception part arranged under the protruding part and receiving the protruding part in a state where the panel member is attached to the toilet body; and a protrusion part extending upward from the reception part. When the panel member is attached to the toilet body, the protrusion part is in a position where at least a part of the protrusion part is overlapped with the protruding part in a rear view when the toilet body is viewed from behind.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: April 2, 2024
    Assignee: TOTO LTD.
    Inventors: Yusuke Tone, Masaaki Momoe, Eiji Shiohara
  • Patent number: 11939678
    Abstract: A method of making a semiconductor manufacturing apparatus member includes a step of preparing an aluminum base having an alumite layer having a porous columnar structure at an upper surface thereof. The alumite layer is an anodic oxidation film, and a Young's modulus of the alumite layer is between 90 GPa and 120 GPa. The method also includes a step of forming a particle-resistant layer on the alumite layer by aerosol deposition, in which an aerosol containing fine particles of a brittle material dispersed in a gas is ejected from a nozzle to impact against a surface of the alumite layer, wherein the particle-resistant layer includes a polycrystalline ceramic; and wherein, when the resulting semiconductor manufacturing apparatus member is exposed to a plasma in a reference plasma resistance test, the particle-resistant layer has an arithmetic average height Sa of 0.060 or less after the reference plasma test is completed.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: March 26, 2024
    Assignee: TOTO LTD.
    Inventors: Yasutaka Nitta, Takuma Wada
  • Patent number: 11927004
    Abstract: The present invention provides a flush water tank device (4) that supplies flush water to an upper and lower spout port of a flush toilet (2) including; a flush water tank (10); a discharge valve (12); a first on-off valve (19) that performs switching between ejection and stopping of the flush water from the upper spout port; a first on-off valve driving mechanism (16) that is moved from a stopped position to an ejection position based on an user operation; a biasing mechanism (17) that causes the first on-off valve driving mechanism to move to the stopped position; a holding mechanism (20) that holds, at the ejection position, the first on-off valve driving mechanism at the ejection position against the bias force; and a releasing mechanism (21) that releases the holding of the first on-off valve driving mechanism, using the flush water flowing out from the first on-off valve.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: March 12, 2024
    Assignee: TOTO LTD.
    Inventors: Hideki Tanimoto, Koki Shinohara, Kenji Hatama, Makoto Abe, Seika Tatsuoka
  • Patent number: 11913208
    Abstract: A flush toilet includes a toilet main body made of ceramics, a control unit, a supply source that enables water supply or power supply to the control unit, and a flexible elongated member connecting the supply source and the control unit. The toilet main body includes a rear storage configured to store at least a part of the control unit. The rear storage includes an upper storage region, a lower region, and a lower communication region. The flexible elongated member extends from an upper connecting end portion toward a lower connecting end portion, to be inserted from the upper storage region into the lower communication region, and then extends from inside of the lower communication region to outside of the toilet main body, without extending through the lower region.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: February 27, 2024
    Assignee: TOTO LTD.
    Inventors: Yusuke Eto, Takahiro Maruyama, Wataru Ishimi, Taketo Okubo, Seiya Nakashima
  • Publication number: 20240057982
    Abstract: A plurality of color sensing sections are attached to a toilet seat so as to test a health state or a fecal occult blood portion every time by capturing the feces surface color during defecation. Before feces which have been excreted from a body sink into a water-seal portion, the circumference of the feces is optically captured to detect the color of the surface of the feces. By monitoring changes in color, the health state of the defecator is monitored. In particular, by checking the presence/absence of an occult blood portion, the present invention assists in early detection of colorectal cancer and allows a fecal occult blood test to be performed in a hygienic manner without burdening the user.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 22, 2024
    Applicants: SETECH CO., LTD., TOTO LTD.
    Inventor: Hirokazu SEKINE
  • Patent number: 11891785
    Abstract: The object of the present invention is to provide a faucet apparatus in which both the area for the air inlet port and the area for the babble-water flow discharge port are secured, without excessively increasing sizes of a faucet aerator cap and a faucet apparatus. The air inlet port is provided in a lateral surface of the faucet aerator cap. The flow channel of the spout is provided with a communication port for guiding air between the outside wall and the flow channel toward the air inlet port.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: February 6, 2024
    Assignee: TOTO LTD.
    Inventors: Yutaro Ohara, Hiroshi Mizoguchi
  • Patent number: 11885109
    Abstract: In a washdown flush toilet, a water discharge trap conduit includes: an inlet pipe part connected to a bowl part receiving waste; a trap ascending pipe part connected to the inlet pipe part and forming an ascending flow channel; and a trap descending pipe part connected to the trap ascending pipe part and forming a descending flow channel. With regard to a cross section perpendicular to a flow direction of the ascending flow channel, a portion on a downstream side of the ascending flow channel is provided with an enlarged part having a cross section area larger than that on an upstream side of the ascending flow channel. A downstream end of the ascending flow channel and/or an upstream side of the descending flow channel is provided with a shrunk part having a cross section area smaller than that on the upstream side of the ascending flow channel.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: January 30, 2024
    Assignee: TOTO LTD.
    Inventor: Shoko Imaizumi
  • Patent number: 11885110
    Abstract: A flush toilet of the present invention includes: a bowl including a waste receiving surface, a rim and a shelf surface formed between the waste receiving surface and the rim, the shelf surface of the bowl including linear portions provided on a right side and a left side, a front arc portion connected to front ends of the linear portions, and a rear arc portion connected to rear ends of the linear portions; a rim spout portion spouting flush water from a rim spout port to the shelf surface to form a circulating flow; and the like. Flush water is spouted backward from the rim spout port along the linear portions of the shelf surface; and the shelf surface located on an upstream side of the rim spout port has a sloped surface ascending toward the rim spout port.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: January 30, 2024
    Assignee: TOTO LTD.
    Inventor: Wataru Ishimi
  • Patent number: 11852251
    Abstract: The cylinder body is affected by a rotational operation of the first operation part in such a manner that a rotational position of the cylinder body is changed while an axial position of the cylinder body is not changed, and is affected by a rotational operation of the second operation part in such a manner that the axial position of the cylinder body is changed while the rotational position of the cylinder body is not changed. A communication amount between the cold water supply channel and the cold water inlet hole, a communication amount between the hot water supply channel and the hot water inlet hole, and/or a communication amount between the mixed water outlet hole and the mixed water outlet channel are/is changed depending on the axial position and the rotational position of the cylinder body in order to achieve both a temperature regulation and a flow rate regulation.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 26, 2023
    Assignee: TOTO LTD.
    Inventors: Kenichi Hashimoto, Makoto Hatakeyama, Masanobu Kanashiro
  • Patent number: 11830755
    Abstract: An electrostatic chuck includes a ceramic dielectric substrate and a base plate. The ceramic dielectric substrate includes a first major surface, a second major surface, a groove part, and a plurality of cooling gas holes. The groove part includes first and second circumferential grooves, and first and second radial-direction grooves. The plurality of cooling gas holes includes first and second holes. The first hole overlaps the first radial-direction groove. The second hole overlaps the second radial-direction groove. The base plate includes a gas inlet path that supplies the cooling gas to the first and second holes. The first circumferential groove includes first and second end portions. The second circumferential groove includes third and fourth end portions. The third end portion and the fourth end portion do not overlap the first end portion in the radial direction.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: November 28, 2023
    Assignee: Toto Ltd.
    Inventors: Akihito Ono, Jumpei Uefuji, Tomoki Umetsu, Tatsuya Hayakawa
  • Patent number: 11828051
    Abstract: A flush toilet is capable of suppressing water from splashing from a bowl at a time when water is discharged rearward inside the bowl from one rim spout port portion formed in a rim portion. A rim spout portion of the flush toilet forms a rim water passage where flush water that is supplied flows through, and forms, on a downstream end of the rim water passage, a rim spout port portion that discharges the flush water rearward. The rim spout port portion, which is one in number, is formed in the rim portion, and the rim spout port portion in the linear portion is formed to discharge water rearward in the bowl in a direction extending the linear portion.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 28, 2023
    Assignee: TOTO LTD.
    Inventor: Wataru Ishimi
  • Patent number: 11821186
    Abstract: Summary Problem: To provide a spout apparatus in which sagging of the mesh structure portion in the flow-conditioning member due to water pressure can be suppressed even if the flow-conditioning member is formed by a fine diameter mesh structure, and the flow-conditioning member can be compactly constituted and flow velocity distribution made uniform. Solution Means: The embodiment of the invention is a spout apparatus 2, including a spout apparatus main unit 6, a flow-conditioning member 12, and a spray member 16; wherein the flow-conditioning member 12 is formed by a mesh structure in which numerous fine holes are formed, and the mesh structure is layered and formed three dimensionally, such that the mesh structure portion of at least a portion of the mesh structure extends in a direction parallel to the direction of water flowing into the flow-conditioning member.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: November 21, 2023
    Assignee: TOTO LTD.
    Inventors: Rie Onodera, Ryohei Yaita, Shunji Yoshino
  • Patent number: 11819198
    Abstract: A plurality of color sensing sections are attached to a toilet seat so as to test a health state or a fecal occult blood portion every time by capturing the feces surface color during defecation. Before feces which have been excreted from a body sink into a water-seal portion, the circumference of the feces is optically captured to detect the color of the surface of the feces. By monitoring changes in color, the health state of the defecator is monitored. In particular, by checking the presence/absence of an occult blood portion, the present invention assists in early detection of colorectal cancer and allows a fecal occult blood test to be performed in a hygienic manner without burdening the user.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 21, 2023
    Assignees: SETECH CO., LTD., TOTO LTD.
    Inventor: Hirokazu Sekine
  • Patent number: 11821193
    Abstract: A sanitary washing device includes a casing, a nozzle, and a nozzle drive unit. The nozzle drive unit advances and retracts the nozzle between a storage position and an advanced position. The nozzle drive unit includes a supporter, a gear, and a cable rack. The supporter includes a rail allowing the nozzle to slide. The gear applies a drive force to advance and retract the nozzle. The cable rack is connected with the nozzle and meshes with the gear. The cable rack includes a nozzle connection part connected with the nozzle. The gear and the cable rack mesh at a meshing part. The meshing part is positioned at a same position in a longitudinal direction as the nozzle connection part or further frontward than the nozzle connection part when the nozzle is at the storage position.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: November 21, 2023
    Assignee: TOTO LTD.
    Inventors: Katsuya Nagata, Yuki Ko, Junki Hamada
  • Patent number: D1004752
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 14, 2023
    Assignee: TOTO Ltd.
    Inventors: Bowen Peng, Atsushi Toyohara, Rina Ogata, Takanori Shimazoe