# US 10,483,800 B2 · Portable device, charging device for same, and charging system for portable device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,800 B2 - Document ID: US10483800B2 - Status: Granted - Kind: B2 - Application number: 14/767,689 - Filed: 2013-11-05 - Published: 2015-12-24 - Granted: 2019-11-19 - Earliest claimed: 2013-02-20 - Assignees: Nitto Denko Corporation - Applicants: Nitto Denko Corporation - Inventors: Takezo Hatanaka; Hisashi Tsuda - Web page: https://patentgrep.com/patent/US10483800B2 ## CPC - H02J 50/12: of the resonant type - H02J 7/04: Regulation of charging current or voltage - H02J 50/10: using inductive coupling - H04R 1/1025: Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof - G02C 11/06: Hearing aids (construction of electric hearing aids H04R25/00) - H04R 25/554: {using a wireless connection, e.g. between microphone and amplifier or using Tcoils} - H04R 2225/31: Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells - H04R 2460/17: Hearing device specific tools used for storing or handling hearing devices or parts thereof, e.g. placement in the ear, replacement of cerumen barriers, repair, cleaning hearing devices - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) ## Abstract A portable device has an outer wall member exposed outside, and a power-receiving module at least a portion of which is arranged along the surface shape of the outer wall member to receive power by way of the resonance phenomenon. The power-receiving module has a power-receiving resonance coil and a power-drawing coil. The portable device creates a space portion with a weak magnetic field at the inner position or the peripheral position of the power receiving module during power feeding using the resonance phenomenon so that an electronic device is arranged in the space. ## Claims ### Claim 1 A portable device, comprising: an outer wall member exposed to outside; and a power-receiving module at least partially arranged along a surface shape of the outer wall member, which receives power supplied by means of a resonance phenomenon, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; an electronic device disposed in a magnetic field space formed by the resonance phenomenon and having a magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of the power-receiving resonance coil, the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 2 (depends on 1) A charging device, comprising a power-supplying module configured to supply power to the power-receiving module of the portable device according to claim 1, by means of a resonance phenomenon. ### Claim 3 (depends on 1) A portable device charging system, comprising: the portable device according to claim 1; and a charging device having a power-supplying module configured to supply power to the power-receiving module of the portable device by means of a resonance phenomenon. ### Claim 4 A portable device, comprising: a housing having an outer wall member exposed to outside; a portable case configured to detachably accommodate therein the housing; and a power-receiving module at least partially arranged along at least either one of a surface shape of the outer wall member and a surface shape of the portable case, which receives power supplied by means of a resonance phenomenon, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; and an electronic device disposed in a magnetic field space formed by the resonance phenomenon and having a magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of the power-receiving resonance coil, the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 5 A human wearable device, comprising: an outer wall member exposed to outside; and a power-receiving module at least partially arranged along a surface shape of the outer wall member, which receives power supplied by means of a resonance phenomenon, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; an electronic device disposed in a magnetic field space formed by the resonance phenomenon and having a magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of the power-receiving resonance coil, the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 6 A hearing aid, comprising: a hearing aid main body attachable to a pinna; an ear mold to be abutted to or nearby an ear hole opening; a joint part joining the hearing aid main body and the ear mold; and a power-receiving module configured to receive power supplied by means of a resonance phenomenon, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; and an electronic component disposed in a magnetic field space formed by the resonance phenomenon and having a magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of the power-receiving resonance coil, the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 7 (depends on 6) The hearing aid according to claim 6, wherein the power-receiving resonance coil is formed by a solenoid coil disposed along an outline of the hearing aid main body. ### Claim 8 (depends on 6) The hearing aid according to claim 6, wherein the power-receiving resonance coil is formed by a planar coil arranged on an outer wall surface, on the inside of the outline of the hearing aid main body. ### Claim 9 (depends on 6) The hearing aid according to claim 6, wherein the power-receiving resonance coil is formed by a solenoid coil arranged to cross the outline of the hearing aid main body. ### Claim 10 (depends on 6) The hearing aid according to claim 6, wherein the power-receiving resonance coil is formed by a solenoid coil or a planar coil arranged in the periphery of an abutting portion of the ear mold to be abutted to or nearby the ear hole opening. ### Claim 11 (depends on 6) A charging device, comprising a power-supplying module configured to supply power to the power-receiving module of the hearing aid according to claim 6, by means of a resonance phenomenon. ### Claim 12 (depends on 6) A hearing aid charging system, comprising the hearing aid according to claim 6, and a charging device having a power-supplying module configured to supply power to the power-receiving module of the hearing aid by means of a resonance phenomenon. ### Claim 13 A hearing aid, comprising: a housing having a cylindrical shell part configured to abut a surface of an external auditory canal in a hear hole, a face plate part arranged on a pinna side of the shell part, a leading end part arranged on the inner ear side of the shell part; and a power-receiving module configured to receive power supplied by means of a resonance phenomenon, at least a part of the power-receiving module being disposed along at least one of a surface shape of the shell part or a surface shape of the face plate part, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; an electronic component disposed in a magnetic field space formed by the resonance phenomenon and having a magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of a power-receiving resonance coil, the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 14 (depends on 13) The hearing aid according to claim 13, wherein the power-receiving resonance coil is formed by a solenoid coil arranged along an outline of the shell part. ### Claim 15 (depends on 13) The hearing aid according to claim 13, wherein the power-receiving resonance coil is formed by a solenoid coil arranged along an outline of the face plate part. ### Claim 16 (depends on 13) The hearing aid according to claim 13, wherein the power-receiving resonance coil is formed by a solenoid coil arranged to cross the outlines of the shell part and the face plate part. ### Claim 17 A hearing aid, comprising: a frame including a pair of lenses configured to correct eyesight, a pair of rims for supporting the pair of lenses, respectively, a bridge for joining the rims, closing blocks provided to the rims, respectively, and temples to be worn on pinnae, which are supported by the closing blocks in such a manner as to be capable of moving rotationally; and a power-receiving module configured to receive power supplied by means of a resonance phenomenon, at least a part of the power-receiving module being disposed along a surface shape of the frame, the power-receiving module including a power-receiving resonance coil having an outer circumferential side and an inner circumferential side opposite the outer circumferential side; an electronic component disposed in a magnetic field space formed by the resonance phenomenon and having magnetic field strength weaker than that in nearby portions, the magnetic field space being located within a space defined by the power-receiving resonance coil on the inner circumferential side of the power-receiving resonance coil; and a magnetic member disposed between the electronic device and the power-receiving resonance coil and covering an inner circumferential surface of the power-receiving resonance coil the magnetic member configured to reduce a magnetic field generated on the inner circumferential side of the power-receiving resonance coil. ### Claim 18 (depends on 17) The hearing aid according to claim 17, wherein the power-receiving resonance coil is formed by a solenoid coil arranged along the outline of one of the temples and/or the outline of one of the rims. ### Claim 19 (depends on 17) The hearing aid according to claim 17, wherein the power-receiving resonance coil is formed by a solenoid coil arranged along an outlines of the pair of rims and the bridge. ### Claim 20 (depends on 17) The hearing aid according to claim 17, wherein the power-receiving resonance coil is formed by a solenoid coil arranged to cross the outline of the temples. ### Claim 21 (depends on 17) The hearing aid according to claim 17, wherein the power-receiving resonance coil is formed by a planar coil arranged on the outer wall surface, on the inside of the outline of at least one of the temples.