Patents by Inventor Shin Hwan PARK
Shin Hwan PARK has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230211516Abstract: A razor assembly includes a razor cartridge comprising at least one shaving blade, and a blade housing configured to receive the at least one shaving blade in a first direction; a cartridge connector coupled to the razor cartridge such that the razor cartridge is rotatable with respect to the cartridge connector about a rotational axis parallel to the first direction; and a razor handle, wherein the cartridge connector further comprises: at least two first cantilevers configured to provide a recovering force to the razor cartridge to restore the razor cartridge to a rest position; at least one second cantilever coupled to at least a part of the razor handle; and an upper wall covering the at least one second cantilever, wherein the at least one second cantilever is not exposed to an outside by the upper wall when viewed from a bottom side of the blade housing.Type: ApplicationFiled: March 10, 2023Publication date: July 6, 2023Applicant: DORCO CO., LTD.Inventors: Jae Joon LEE, Sung Hee SON, Shin Hwan PARK, Sang Hun PARK
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Publication number: 20230166417Abstract: 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.Type: ApplicationFiled: November 23, 2022Publication date: June 1, 2023Inventors: Hyun Ju LEE, Shin Hwan PARK, Min Joo PARK
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Publication number: 20230150156Abstract: A shaver according to an embodiment of the present invention for resolving issues comprises: a handle for gripping by a user; a power generation unit, attached to the handle, for generating rotational power; a power transmission unit which rotates by means of the rotational power generated in the power generation unit; a cartridge comprising a blade housing in which one or more blades are seated; and a power reception unit, on one surface of the cartridge so as to allow contact with the power transmission unit, for moving the blade housing linearly in accordance with the rotation of the power transmission unit, wherein the cartridge is coupled to the handle so as to allow pivoting around the pivot axis which is perpendicular to the rotational axis of the rotational power generated by the power generation unit, and the pivot axis is established so as to penetrate the power transmission unit.Type: ApplicationFiled: January 13, 2023Publication date: May 18, 2023Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK
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Patent number: 11628580Abstract: The present invention relates to a razor including a handle, a frame coupled to the handle, a spacer, a top cap, a first blade secured between the frame and the spacer, and a second blade secured between the spacer and the top cap, wherein the first blade is supported by a portion of a top surface of the frame and a portion of a bottom surface of the spacer such that a first profile of the first blade is convexly curved upward, and wherein the second blade is supported by a portion of a top surface of the spacer and a portion of a bottom surface of the top cap such that a second profile of the second blade comprises a curved central region that is convexly curved upward and a pair of curved side regions that are concavely curved downward on opposite sides of the central region.Type: GrantFiled: November 13, 2017Date of Patent: April 18, 2023Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park
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Patent number: 11613036Abstract: A razor assembly includes a razor cartridge including at least one shaving blade and a blade housing configured to receive the at least one shaving blade such that the at least one shaving blade extends in a first direction corresponding to a width direction of the razor cartridge. The razor assembly includes a cartridge connector coupled to the razor cartridge such that the razor cartridge is rotatable with respect to the cartridge connector about a rotational axis parallel to the first direction, the cartridge connector including at least two first cantilevers and at least one second cantilever. The razor assembly includes a razor handle coupled to the cartridge connector. The razor cartridge is configured such that when the razor cartridge rotates with respect to the cartridge connector, the two first cantilevers contact one side of the razor cartridge, and the second cantilever does not contact the razor cartridge.Type: GrantFiled: July 2, 2020Date of Patent: March 28, 2023Assignee: DORCO CO., LTD.Inventors: Jae Joon Lee, Sung Hee Son, Shin Hwan Park, Sang Hun Park
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Patent number: 11577416Abstract: A razor is provided, including a handle to be gripped by a user, a power generation unit disposed in the handle and configured to provide rotational power, a drive transmission unit coupled to the power generation unit and configured to be rotated by the rotational power, a cartridge including a blade housing on which one or more blades are seated, and a drive receiving unit formed at one side of the cartridge and configured to be in contact with the drive transmission unit to cause the blade housing to perform a linear movement in response to rotation of the drive transmission unit, wherein the cartridge is coupled to the handle such that the cartridge is pivotable about a pivot axis perpendicular to a rotational axis of the power generation unit, and wherein the pivot axis intersects the drive transmission unit.Type: GrantFiled: November 21, 2016Date of Patent: February 14, 2023Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park
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Patent number: 11383397Abstract: A razor assembly includes a razor cartridge, a connector and a recovering force provider. The razor cartridge includes at least one shaving blade having a cutting edge, and a blade housing configured to receive the at least one shaving blade in a transverse direction. The connector is configured to extend in parallel with the transverse direction, and to be coupled to the blade housing so as to be pivotable around a pivot axis movable between a first rest position and a first position spaced apart from the first rest position in a first shaving direction. The recovering force provider includes a first recovering member configured to provide the connector with a recovering force for recovering the pivot axis to the first rest position when the pivot axis is located between the first rest position and the first position.Type: GrantFiled: December 11, 2019Date of Patent: July 12, 2022Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park
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Patent number: 11292143Abstract: The present disclosure provides a razor cartridge including at least one shaving blade having a cutting edge, a blade housing configured to accommodate the at least one shaving blade aligned in a transverse direction, a heated area formed at the blade housing, and comprising at least one heating pattern made of a conductive material, and a non-heated area formed at the blade housing made of a material different from the heated area, wherein the conductive material included in the at least one heating pattern is a conductive plastic or metallic material, and wherein the heated area is configured to generate heat by receiving electric power from a power supply.Type: GrantFiled: May 14, 2020Date of Patent: April 5, 2022Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park
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Patent number: 11273564Abstract: A razor assembly includes a guide housing; a drive receiving member disposed on one side of the guide housing and movable in a first direction with respect to the guide housing; a blade housing disposed on another side of the guide housing; at least one shaving blade disposed at the blade housing; a razor handle extending from the guide housing; and a drive transmission member configured to transmit a driving force to the drive receiving member. The blade housing is configured to be moved with respect to the guide housing in a second direction that is not parallel to the first direction in response to movement of the drive receiving member in the first direction. The drive receiving member is further configured to be moved in the first direction with respect to the guide housing by the driving force transmitted from the drive transmission member.Type: GrantFiled: April 14, 2020Date of Patent: March 15, 2022Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park, Sang Hun Park
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Publication number: 20220063120Abstract: A razor cartridge is disclosed. The present disclosure in at least one embodiment provides a razor cartridge including a blade housing and a lubrication member providing unit, wherein the blade housing is configured to accommodate at least one first shaving blade having a cutting edge and at least one second shaving blade having a cutting edge to lie in a longitudinal direction, the lubrication member providing unit is configured to provide a lubrication member, and the lubrication member providing unit is coupled to the blade housing so that the lubrication member is positioned between the first shaving blade and the second shaving blade.Type: ApplicationFiled: August 12, 2021Publication date: March 3, 2022Applicant: DORCO CO., LTD.Inventors: Da Woon Han, Shin Hwan Park
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Patent number: 10899028Abstract: A razor cartridge and a method for assembling a razor cartridge are disclosed. A razor cartridge includes: a blade housing including a seat configured to receive at least one blade; a pair of side caps respectively disposed at opposite ends of the blade housing, wherein each side cap is configured to be engaged with a corresponding end of the blade housing; and a plurality of bridges, wherein one or more bridges are disposed at each end of the blade housing and configured to provide a moveable connection between the side cap and the corresponding end of the blade housing, wherein the blade housing, the pair of side caps, and the one or more bridges are integrally formed, and wherein each side cap is configured to secure the at least one blade to the blade housing when the side cap is engaged with the corresponding end of the blade housing.Type: GrantFiled: June 13, 2017Date of Patent: January 26, 2021Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park, Sang Hun Park
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Publication number: 20210008743Abstract: A razor assembly includes a razor cartridge including at least one shaving blade and a blade housing configured to receive the at least one shaving blade such that the at least one shaving blade extends in a first direction corresponding to a width direction of the razor cartridge; a cartridge connector coupled to the razor cartridge such that the razor cartridge is rotatable with respect to the cartridge connector about a rotational axis parallel to the first direction, the cartridge connector including at least two first cantilevers and at least one second cantilever; and a razor handle coupled to the cartridge connector, wherein the razor cartridge is configured such that when the razor cartridge rotates with respect to the cartridge connector, the at least two first cantilevers contact one side of the razor cartridge, and the at least one second cantilever does not contact the razor cartridge.Type: ApplicationFiled: July 2, 2020Publication date: January 14, 2021Applicant: DORCO CO., LTD.Inventors: Jae Joon LEE, Sung Hee SON, Shin Hwan PARK, Sang Hun PARK
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Publication number: 20200361105Abstract: The present disclosure provides a razor cartridge including at least one shaving blade having a cutting edge, a blade housing configured to accommodate the at least one shaving blade aligned in a transverse direction, a heated area formed at the blade housing, and comprising at least one heating pattern made of a conductive material, and a non-heated area formed at the blade housing made of a material different from the heated area, wherein the conductive material included in the at least one heating pattern is a conductive plastic or metallic material, and wherein the heated area is configured to generate heat by receiving electric power from a power supply.Type: ApplicationFiled: May 14, 2020Publication date: November 19, 2020Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK
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Publication number: 20200346358Abstract: A razor assembly includes a guide housing; a drive receiving member disposed on one side of the guide housing and movable in a first direction with respect to the guide housing; a blade housing disposed on another side of the guide housing; at least one shaving blade disposed at the blade housing; a razor handle extending from the guide housing; and a drive transmission member configured to transmit a driving force to the drive receiving member. The blade housing is configured to be moved with respect to the guide housing in a second direction that is not parallel to the first direction in response to movement of the drive receiving member in the first direction. The drive receiving member is further configured to be moved in the first direction with respect to the guide housing by the driving force transmitted from the drive transmission member.Type: ApplicationFiled: April 14, 2020Publication date: November 5, 2020Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK, Sang Hun PARK
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Patent number: 10723031Abstract: The present disclosure relates to a razor cartridge with variable blade span(s), the razoar cartridge including a plurality of blades; a plurality of blade housings extended in a first direction and having seats configured to support the plurality of blades; a cartridge frame having one or more rails configured to support the plurality of blade housings such that the plurality of housings are movable along the one or more rails in a second direction perpendicular to the first direction; and a span adjusting shifter coupled to the plurality of blade housings and configured to cause the plurality of blade housings to move along the one or more rails in the second direction.Type: GrantFiled: April 12, 2019Date of Patent: July 28, 2020Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Jae Joon Lee, Sung Hee Son, Shin Hwan Park
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Publication number: 20200180178Abstract: A razor assembly includes a razor cartridge, a connector and a recovering force provider. The razor cartridge includes at least one shaving blade having a cutting edge, and a blade housing configured to receive the at least one shaving blade in a transverse direction. The connector is configured to extend in parallel with the transverse direction, and to be coupled to the blade housing so as to be pivotable around a pivot axis movable between a first rest position and a first position spaced apart from the first rest position in a first shaving direction. The recovering force provider includes a first recovering member configured to provide the connector with a recovering force for recovering the pivot axis to the first rest position when the pivot axis is located between the first rest position and the first position.Type: ApplicationFiled: December 11, 2019Publication date: June 11, 2020Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK
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Publication number: 20190381681Abstract: A razor cartridge and a method for assembling a razor cartridge are disclosed. A razor cartridge includes: a blade housing including a seat configured to receive at least one blade; a pair of side caps respectively disposed at opposite ends of the blade housing, wherein each side cap is configured to be engaged with a corresponding end of the blade housing; and a plurality of bridges, wherein one or more bridges are disposed at each end of the blade housing and configured to provide a moveable connection between the side cap and the corresponding end of the blade housing, wherein the blade housing, the pair of side caps, and the one or more bridges are integrally formed, and wherein each side cap is configured to secure the at least one blade to the blade housing when the side cap is engaged with the corresponding end of the blade housing.Type: ApplicationFiled: June 13, 2017Publication date: December 19, 2019Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK, Sang Hun PARK
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Publication number: 20190315009Abstract: The present disclosure relates to a razor cartridge with variable blade span(s), the razoar cartridge including a plurality of blades; a plurality of blade housings extended in a first direction and having seats configured to support the plurality of blades; a cartridge frame having one or more rails configured to support the plurality of blade housings such that the plurality of housings are movable along the one or more rails in a second direction perpendicular to the first direction; and a span adjusting shifter coupled to the plurality of blade housings and configured to cause the plurality of blade housings to move along the one or more rails in the second direction.Type: ApplicationFiled: April 12, 2019Publication date: October 17, 2019Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK
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Publication number: 20190315006Abstract: A razor is provided, including a handle to be gripped by a user, a power generation unit disposed in the handle and configured to provide rotational power, a drive transmission unit coupled to the power generation unit and configured to be rotated by the rotational power, a cartridge including a blade housing on which one or more blades are seated, and a drive receiving unit formed at one side of the cartridge and configured to be in contact with the drive transmission unit to cause the blade housing to perform a linear movement in response to rotation of the drive transmission unit, wherein the cartridge is coupled to the handle such that the cartridge is pivotable about a pivot axis perpendicular to a rotational axis of the power generation unit, and wherein the pivot axis intersects the drive transmission unit.Type: ApplicationFiled: November 21, 2016Publication date: October 17, 2019Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK
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Publication number: 20190299439Abstract: The present invention relates to a razor including a handle, a frame coupled to the handle, a spacer, a top cap, a first blade secured between the frame and the spacer, and a second blade secured between the spacer and the top cap, wherein the first blade is supported by a portion of a top surface of the frame and a portion of a bottom surface of the spacer such that a first profile of the first blade is convexly curved upward, and wherein the second blade is supported by a portion of a top surface of the spacer and a portion of a bottom surface of the top cap such that a second profile of the second blade comprises a curved central region that is convexly curved upward and a pair of curved side regions that are concavely curved downward on opposite sides of the central region.Type: ApplicationFiled: November 13, 2017Publication date: October 3, 2019Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Jae Joon LEE, Sung Hee SON, Shin Hwan PARK