# US 10,245,129 B2 · Tooth bleaching device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,129 B2 - Document ID: US10245129B2 - Status: Granted - Kind: B2 - Application number: 14/895,447 - Filed: 2014-06-04 - Published: 2016-05-19 - Granted: 2019-04-02 - Earliest claimed: 2013-06-07 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Masayoshi Nagayama; Risa Otsuka - Web page: https://patentgrep.com/patent/US10245129B2 ## CPC - A61C 17/0211: {specially adapted for rinsing the teeth of at least one jaw simultaneously (A61C17/20 takes precedence)} - A61C 17/022: Air-blowing devices {, e.g. with means for heating the air} - A61C 19/066: {Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) ## Abstract A tooth bleaching device provided with: a production device that produces an active component for bleaching a tooth; a mouthpiece in which a supply opening, through which the active component produced by the production device is supplied inside the oral cavity, is formed; and a connecting part that connects the production device and the mouthpiece. ## Claims ### Claim 1 A teeth whitening device comprising: a generator that generates a teeth whitening fluid which is a gas that contains electrically charged microparticle water; a mouthpiece having a shape configured to be held by one or more of teeth, gums, and lips of a user to keep the mouthpiece in the mouth of the user so that the user can use the teeth whitening device hands free; and a coupling portion that couples the generator and the mouthpiece to each other, wherein the mouthpiece includes a supply port that supplies the teeth whitening fluid generated by the generator into an oral cavity, an inlet-side passage, to which the coupling portion is connected, and an outlet-side passage, which does not include the supply port and guides gas flowing through the inlet-side passage to the supply port, wherein the generator is configured to generate condensed water by cooling and to atomize the condensed water by generating electric discharging so as to generate the electrically charged microparticle water, which includes radical species serving as teeth-whitening active ingredients, and wherein the teeth whitening device is configured to cause the gas that contains the electrically charged microparticle water flowing from the generator to the mouthpiece through the coupling portion. ### Claim 2 (depends on 1) The teeth whitening device according to claim 1, wherein the mouthpiece includes an outer curved element that guides the teeth whitening fluid supplied from the supply port into the mouth along the teeth. ### Claim 3 (depends on 1) The teeth whitening device according to claim 1, wherein the mouthpiece includes the supply port formed in a guiding surface that may be opposed to at least either one of upper teeth and lower teeth. ### Claim 4 (depends on 3) The teeth whitening device according to claim 3, wherein the guiding surface includes a portion that may be opposed to a gum, and a flange projecting from the portion that may be opposed to a gum. ### Claim 5 (depends on 1) The teeth whitening device according to claim 1, wherein the mouthpiece includes an occluded element configured to be arranged between upper teeth and lower teeth of a user. ### Claim 6 (depends on 1) The teeth whitening device according to claim 1, wherein the mouthpiece includes an occluded element configured to be arranged between upper teeth and lower teeth of a user, and the outlet-side passage is formed in the occluded element. ### Claim 7 (depends on 6) The teeth whitening device according to claim 6, wherein the supply port is formed in one or both of an upper surface and a lower surface of the occluded element. ### Claim 8 (depends on 1) The teeth whitening device according to claim 1, wherein the outlet-side passage and the inlet-side passage are formed so that a flow speed of teeth whitening fluid flowing through the outlet-side passage is lower than a flow speed of teeth whitening fluid flowing through the inlet-side passage. ### Claim 9 A teeth whitening device comprising: a generator that generates a gaseous teeth whitening fluid when activated; and a mouthpiece connected to the generator in a fluid-communicable manner via a coupling portion that couples the generator and the mouthpiece to each other, the mouthpiece having a shape configured to be held by one or more of teeth, gums, and lips of a user to keep the mouthpiece in the mouth of the user so that the user can use the teeth whitening device hands free, wherein the mouthpiece includes a U-shaped outer curved element, a supply port that supplies the gaseous teeth whitening fluid, an inlet-side passage, to which the coupling portion is connected, and an outlet-side passage, which does not include the supply port and guides the gaseous teeth whitening fluid flowing through the inlet-side passage to the supply port, wherein the generator is configured to generate condensed water on an atomization electrode by cooling the atomization electrode and to atomize the condensed water by generating electric discharging through the atomization electrode so as to generate the electrically charged microparticle water, which includes radical species serving as teeth-whitening active ingredients, wherein the gaseous teeth whitening fluid includes the electrically charged microparticle water dispersed in air, and wherein the teeth whitening device is configured to cause the gaseous teeth whitening fluid flowing from the generator to the mouthpiece through the coupling portion. ### Claim 10 (depends on 9) The teeth whitening device according to claim 9, wherein the outer curved element includes a curved guiding surface configured to guide the teeth whitening fluid discharged from the supply port. ### Claim 11 (depends on 10) The teeth whitening device according to claim 10, wherein the supply port opens in the curved guiding surface. ### Claim 12 (depends on 10) The teeth whitening device according to claim 10, wherein the mouthpiece further includes a spacer projection inwardly projecting from the U-shaped outer curved element. ### Claim 13 (depends on 12) The teeth whitening device according to claim 12, wherein the mouthpiece further includes an occluded element that inwardly projects from the U-shaped outer curved element, the supply port opens in one or both of an upper surface and a lower surface of the occluded element, and the spacer projection opposes the supply port. ### Claim 14 (depends on 9) The teeth whitening device according to claim 9, wherein the outlet-side passage of the mouthpiece includes an internal hollow located at an upstream side of the supply port to reduce a flow speed of the gaseous teeth whitening fluid supplied to the mouthpiece. ### Claim 15 (depends on 9) The teeth whitening device according to claim 9, further comprising an occluded element that inwardly projects from the U-shaped outer curved element. ### Claim 16 (depends on 15) The teeth whitening device according to claim 15, wherein the occluded element includes an internal hollow located at an upstream side of the supply port to reduce a flow speed of the gaseous teeth whitening fluid supplied to the mouthpiece. ### Claim 17 (depends on 15) The teeth whitening device according to claim 15, wherein the supply port opens in one or both of an upper surface and a lower surface of the occluded element. ### Claim 18 (depends on 9) The teeth whitening device according to claim 9, wherein the outlet-side passage and the inlet-side passage are formed so that a flow speed of the gaseous teeth whitening fluid flowing through the outlet-side passage is lower than a flow speed of the gaseous teeth whitening fluid flowing through the inlet-side passage.