公开(公告)号：US20230311352A1

公开(公告)日：2023-10-05

申请号：US18002243

申请日：2021-05-28

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Kwang Choon RYU ,  Myoung Jin KIM

IPC分类号： B26B21/56 ,  B26B21/40

CPC分类号： B26B21/56 ,  B26B21/4031

摘要： A shaving blade is disclosed herein. An embodiment of the present disclosure provides a shaving blade including: a substrate including a cutting edge at which a sharp substrate tip is formed, wherein the substrate has a thickness T10 measured at a distance D10 that is 10 micrometers away from the substrate tip, the thickness T10 having a value between 3.18 micrometers and 3.66 micrometers, and a thickness T100 measured at a distance D100 that is 100 micrometers away from the substrate tip, the thickness T100 having a value between 14.82 micrometers and 18.85 micrometers.

公开(公告)号：US20230249371A1

公开(公告)日：2023-08-10

申请号：US18305250

申请日：2023-04-21

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Kwang Choon RYU ,  Min Joo PARK

IPC分类号： B26B21/60

CPC分类号： B26B21/60 ,  B26B21/56

摘要： According to one embodiment, a shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.

公开(公告)号：US20230166417A1

公开(公告)日：2023-06-01

申请号：US18058628

申请日：2022-11-23

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Shin Hwan PARK ,  Min Joo PARK

IPC分类号： B26B21/22 ,  B26B21/40

CPC分类号： B26B21/222 ,  B26B21/4031 ,  B26B21/443 ,  B26B21/4018

摘要： Provided is a razor cartridge including: a first blade having a first base portion and a first cutting edge formed therein; a second blade disposed in front of the first blade to be adjacent to the first blade, and having a second base portion and a sliding edge therein; and a blade housing supporting the first base portion to have at least a portion of the first cutting edge exposed, and supporting the second base portion to have at least a portion of the sliding edge exposed, and the second blade is formed so that a ratio t3/t4 of a thickness t3 of the sliding edge to a thickness t4 of the second base portion is less than 1 and greater than a ratio t1/t2 of a thickness t1 of the first cutting edge to a thickness t2 of the first base portion.

公开(公告)号：US20240316810A1

公开(公告)日：2024-09-26

申请号：US18733394

申请日：2024-06-04

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Hyun Kyu JUNG ,  Seung Ki LEE ,  Kwang Choon RYU ,  Min Joo PARK

IPC分类号： B26B21/56 ,  B26B21/60

CPC分类号： B26B21/56 ,  B26B21/60

摘要： A razor blade is proposed. The razor blade may include a substrate having a cutting edge formed at a tip. A thickness T4 of the substrate measured at a distance of 4 μm from the tip may be between 1.00 μm and 1.70 μm. A thickness T250 of the substrate measured at a distance of 250 μm from the tip may be between 44 μm and 60.56 μm, for example between 47.5 μm and 60.56 μm. A ratio of the T4 to the T250 may be 0.032 or less. A rate of increase in thickness in a first section in a region distanced 40 μm to 100 μm from the tip may be less than a rate of increase in thickness in a second section in a region distanced 100 μm or more from the tip.

公开(公告)号：US20240308094A1

公开(公告)日：2024-09-19

申请号：US18675637

申请日：2024-05-28

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Seung Ki LEE

IPC分类号： B26B21/56

CPC分类号： B26B21/56

摘要： A razor blade is proposed. The razor blade may include a substrate having a substrate edge with a substrate tip formed at an end portion. The substrate may include a first facet extending from the substrate tip to one side, a second facet extending from the substrate tip to the other side, a third facet extending from the first facet, and a fourth facet extending from the second facet. A slope of the first facet and a slope of the second facet may be different from each other. A first horizontal line perpendicular to the first vertical line may pass through a first point, and a second horizontal line perpendicular to the first vertical line may pass through a second point. A difference between a first vertical distance and a second vertical distance may be 10 micrometers to 30 micrometers.

公开(公告)号：US20240058978A1

公开(公告)日：2024-02-22

申请号：US18447102

申请日：2023-08-09

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Seung Ki LEE ,  Kwang Choon RYU ,  Min Joo PARK

IPC分类号： B26B21/56

CPC分类号： B26B21/56

摘要： A razor blade is proposed. The razor blade may include a substrate having a cutting edge formed at a tip. The substrate may include a plurality of first facets, and a plurality of second facets formed between the tip and the plurality of first facets. The substrate may also include a facet brake region having facet brake spots where the plurality of first facets and the plurality of second facets intersect. The substrate may further include a first facet region including the plurality of first facets but not including the plurality of second facets.

公开(公告)号：US20180200902A1

公开(公告)日：2018-07-19

申请号：US15918676

申请日：2018-03-12

申请人： DORCO CO,. LTD.

发明人： Hee Sung YANG ,  Jae Young LEE ,  Hyun Ju LEE

IPC分类号： B26B21/56 ,  B26B21/10 ,  B26B21/40

摘要： A double-edged razor blade, comprising: a first unit blade having a first cutting edge; a second unit blade having a second cutting edge; a first connecting portion connecting one side of the first unit blade with one side of the second unit blade; a second connecting portion connecting the other side of the first unit blade with the other side of the second unit blade; a pair of first notches forming a boundary between the first unit blade and the first and the second connecting portions, and guiding breakage of the first unit blade; and a pair of second notches forming a boundary between the second unit blade and the first and the second connecting portions, guiding breakage of the second unit blade.

公开(公告)号：US20210094199A1

公开(公告)日：2021-04-01

申请号：US16987298

申请日：2020-08-06

申请人： DORCO CO., LTD.

发明人： Hyun Ju LEE ,  Kwang Choon RYU ,  Min Joo PARK

IPC分类号： B26B21/60

摘要： A shaving blade is disclosed. According to one embodiment of the present disclosure, the shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.