Panasonic Japanese patent publication covers shared-electrode beauty device
Source publication date
Site published
The original title is 美容器具. The applicant is Panasonic Intellectual Property Management Co., Ltd. Japanese application 2022-013466 was published as JP2023111559A and subsequently as JP7867211B2.
Granted claim 1 covers a handheld body and a skin-contact head with at least three parallel electrodes. A pair spaced closer than the end electrodes receives a first-frequency output; a farther-spaced pair receives a lower-frequency second output. At least one electrode is shared between pairs carrying different-frequency outputs. The body has at least one electrode contacting the user when gripped. A third output is applied between at least some head electrodes and the body electrode: the selected head electrodes have the same polarity, opposite to the body electrode.
The ranges 1–5 MHz and 1 Hz–10 kHz appear in dependent claims 5 and 4, respectively, rather than claim 1.
Summary
JP7867211B2 describes different frequencies across closer and farther electrode pairs, with shared electrodes in a beauty-device head.
Editorial view
The design combines electrode spacing, frequency selection and electrode sharing to integrate multiple outputs in a compact head.
Evidence and limitations
Reviewed through Google’s reproduction of the publication. Current enforceability, product implementation and clinical efficacy were not verified. Published and granted claims differ; this is not a novelty or infringement opinion.