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公开(公告)号：US20170361478A1
公开(公告)日：2017-12-21
申请号：US15620452
申请日：2017-06-12
Inventor： Shigetoshi SAKON , Shintaro MATSUO , Kenji NARITA , Shigeru TATSUTA
CPC classification number: B26B19/42 , B26B19/042 , B26B19/063 , B26B19/282 , B26B19/384 , B26B19/3846
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.
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公开(公告)号：US20230000554A1
公开(公告)日：2023-01-05
申请号：US17773778
申请日：2020-08-28
Inventor： Hideki KASUGAI , Kenji NARITA
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.
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Patent Agency Ranking
公开(公告)号：US20180229383A1
公开(公告)日：2018-08-16
申请号：US15886367
申请日：2018-02-01
Inventor： Shintaro MATSUO , Shigetoshi SAKON , Kenji NARITA
CPC classification number: B26B19/3846 , B26B19/042 , B26B19/10 , B26B19/146 , B26B19/382
Abstract: An outer blade for an electric shaver has slits. With bars extending along an outer-blade width direction, each of the slits is defined by respective ends of the bars, the respective ends being positioned side by side along an outer-blade length direction, and is defined continuously from one end to another end in the outer-blade width direction. At least one of two bars that define the slit is provided with a lifter that lifts hair by contact. The lifter is formed partway along the slit and extends between edges of the slit along the outer-blade length direction when viewed along the outer-blade width direction.
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公开(公告)号：US20230074850A1
公开(公告)日：2023-03-09
申请号：US17796180
申请日：2020-11-19
Inventor： Yoshiaki KANAMORI , Kenji NARITA
Abstract: An electric razor comprises a head, a grip, a blade unit disposed in the head for cutting hair, a skin electrode disposed in the head, and a grip electrode disposed in the grip. The electric razor further comprises 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.
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公开(公告)号：US20230071286A1
公开(公告)日：2023-03-09
申请号：US17796191
申请日：2020-11-19
Inventor： Yoshiaki KANAMORI , Kenji NARITA
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.
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公开(公告)号：US20220387104A1
公开(公告)日：2022-12-08
申请号：US17773786
申请日：2020-08-28
Inventor： Hideki KASUGAI , Kenji NARITA
IPC: A61B18/20
Abstract: A hair cutting device according to the present disclosure comprises an optical waveguide. The optical waveguide comprises a light irradiator. The light irradiator irradiates hair protruding from the skin with light to cut the hair. The refractive index of the light irradiator is smaller than the refractive index of the surface of the skin. As a result, options such as the material of the optical waveguide and the like can be increased. Furthermore, for example, when the skin is appropriately irradiated with light from the light irradiator, an action on the skin such as sterilization or activation can also be expected.
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公开(公告)号：US20220378167A1
公开(公告)日：2022-12-01
申请号：US17774041
申请日：2020-08-28
Inventor： Hideki KASUGAI , Kenji NARITA
IPC: A45D26/00
Abstract: A hair cutting device according to the present disclosure comprises an optical waveguide. The optical waveguide comprises a light irradiator for irradiating hair protruding from a skin with light to cut the hair. At least at a time of cutting the hair, a power density of light passing through the optical waveguide is more than or equal to 50 kW/cm2. This makes it easy to efficiently cut hair with light with which the light irradiator irradiates the hair. That is, it is possible to apply sufficient light energy for cutting the hair from the optical waveguide to the hair, and it is possible to cut the hair in a relatively short time. Therefore, for example, a width increases such as a thickness or hardness of hair that can be cut.
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