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.

公开(公告)号：US11420347B2

公开(公告)日：2022-08-23

申请号：US16977710

申请日：2019-02-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shigetoshi Sakon ,  Kazuhiro Morisugi

IPC: B26B19/06 ,  B26B19/38

Abstract: Trimmer blade includes stationary blade that includes a plurality of first unit blades, and movable blade that includes a plurality of second unit blades and slides relative to stationary blade. A leading end of first unit blade includes projection that projects from first sliding surface of first unit blade. A leading end face of one of the plurality of second unit blades touches projection.

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：US11440208B2

公开(公告)日：2022-09-13

申请号：US17116172

申请日：2020-12-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shigetoshi Sakon ,  Kazuhiro Morisugi

IPC: B26B19/38 ,  B26B19/06 ,  B26B19/20

Abstract: A blade of a hair removal device according to the present disclosure includes a fixed blade having a fixed blade bar and a fixed blade groove, and a movable blade having a movable blade bar and a movable blade groove. The movable blade bar is formed such that a bar width in a reciprocating sliding direction is larger than a groove width of the fixed blade groove in the reciprocating sliding direction. In the fixed blade bar, a bar width in the reciprocating sliding direction is larger than a groove width of the movable blade groove in the reciprocating sliding direction. In the fixed blade groove and the movable blade groove, a blade groove angle at least on an opening side is a positive angle with an intersection positioned on a depth side. This configuration provides a blade of a hair removal device capable of suppressing deformation.

公开(公告)号：US10751893B2

公开(公告)日：2020-08-25

申请号：US15891046

申请日：2018-02-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shoki Okura ,  Hiroaki Shimizu ,  Shintaro Matsuo ,  Shigetoshi Sakon ,  Hiroki Inoue

IPC: B26B19/14 ,  B26B19/40 ,  B26B19/42 ,  B26B19/38

Abstract: An outer blade for a hair cutting device, the outer blade being mounted to an end of a main body of the hair cutting device, includes bars that each have a shape of a rectangular stick and are arranged at predetermined intervals. The outer blade also includes, at a skin-surface-contact-side first face of each of the bars, an agent holding part configured to hold an agent that is a substance having a predetermined effect on a skin surface, the agent holding part being a surrounded recess heading from the skin-surface-contact-side first face of the bar toward an inner-blade-side second face of the bar. Thus, the agent such as foam or gel can be held by the agent holding part at the skin-surface-side face of the outer blade, and friction can be reduced between the outer blade and the skin surface by the agent held by the agent holding part.