公开(公告)号：US12220167B2

公开(公告)日：2025-02-11

申请号：US17773778

申请日：2020-08-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideki Kasugai ,  Kenji Narita

IPC: A61B18/20 ,  A45D26/00 ,  A61B17/00 ,  A61B18/00 ,  A61B18/22

Abstract: A hair cutting device of the present disclosure comprises an optical waveguide and a holding member that holds the optical waveguide. The optical waveguide comprises a light irradiator. The light irradiator irradiates hair protruding from skin with light to cut the hair. The holding member holds the optical waveguide in such a way that the light irradiator is exposed from at least one surface. As a result, even when the hair or the skin comes in contact with the light irradiator, misalignment or the like of the optical waveguide hardly occurs. This results in the improved hair cutting device being provided.

公开(公告)号：US10543608B2

公开(公告)日：2020-01-28

申请号：US15620452

申请日：2017-06-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shigetoshi Sakon ,  Shintaro Matsuo ,  Kenji Narita ,  Shigeru Tatsuta

IPC: B26B19/04 ,  B26B19/42 ,  B26B19/06 ,  B26B19/28

Abstract: An outer blade of an electric shaver has slits. Each of the slits includes: a first slit portion; a second slit portion positioned in a displaced manner from the first slit portion in a length direction of the outer blade; and a connecting slit portion connecting the first slit portion to the second slit portion. A displacement width in the length direction of the outer blade between the first slit portion and the second slit portion is set equal to or larger than at least one of widths of connecting portions of the first slit portion and the second slit portion connected to the connecting slit portion.

公开(公告)号：US12122058B2

公开(公告)日：2024-10-22

申请号：US17796191

申请日：2020-11-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiaki Kanamori ,  Kenji Narita

IPC: B26B19/48 ,  A61N1/04 ,  A61N1/32 ,  A61N1/36

CPC classification number: B26B19/48 ,  A61N1/0428 ,  A61N1/0476 ,  A61N1/328 ,  A61N1/3603

Abstract: A beauty instrument according to the present disclosure comprises a skin electrode disposed in a head, a grip electrode disposed in a grip, a voltage application circuit for applying a voltage between the skin electrode and the grip electrode to cause a current to flow between the skin electrode and the grip electrode through a human body, and a controller that controls the voltage application circuit. The controller comprises a touch detector that detects touch of a skin surface of the human body with the skin electrode. Before the touch detector detects the touch, the voltage application circuit is controlled to apply a first voltage having a relatively high frequency, and after the touch detector detects the touch, the voltage application circuit is controlled to apply a second voltage having a relatively low frequency.

公开(公告)号：US10315320B2

公开(公告)日：2019-06-11

申请号：US14426059

申请日：2013-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenji Narita ,  Shigeru Tatsuta ,  Shigetoshi Sakon ,  Satoshi Nakayama

IPC: B26B19/04 ,  B26B19/12 ,  B26B19/14

Abstract: This electric shaver has outer blades, inner blades, an inner-blade joint component, and skin-entry prevention parts. The outer blades have outer-blade holes. The inner blades have main inner-blade walls, multiple blade pieces, inner-blade holes, and internal inner-blade spaces. The inner blades move back and forth relative to the outer blades so as to cut hair that has entered through the outer-blade holes. The main inner-blade walls are connected to the inner-blade joint component. The internal inner-blade spaces are bounded by the main inner-blade walls and the multiple blade pieces. The skin-entry prevention parts are located inside the internal inner-blade spaces, at positions that correspond to the inner-blade holes, and are structured so as to contact skin that has entered the internal inner-blade spaces via the inter-blade holes.