Patents by Inventor Jun Soo Chang
Jun Soo Chang 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: 20240051164Abstract: A razor cartridge is proposed. The razor cartridge may include a plurality of blades each including cutting edges, the plurality of blades including a first blade including a first cutting edge and a second blade including a second cutting edge. The razor cartridge may also include a blade housing longitudinally accommodating the plurality of blades to expose the cutting edge at least partially through an upper portion thereof, the blade housing including a first contact surface and a second contact surface respectively disposed in front and back of the cutting edge. The razor cartridge may further include an elastic arm elastically supporting the second blade. The first contact surface and the second contact surface may define a shaving plane. The first cutting edge may have a smaller exposure value than the second cutting edge with respect to the shaving plane while no external force acts.Type: ApplicationFiled: July 28, 2023Publication date: February 15, 2024Inventor: Jun Soo CHANG
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Publication number: 20230166422Abstract: The present disclosure in some embodiments provides a razor cartridge comprising: at least one shaving blade comprising a base portion and an edge portion including a cutting edge, at least a portion of the shaving blade having a bent area; a receiving base receiving the base portion; a cap covering at least a portion of the receiving base; and a plurality of comb elements, at least some of which are disposed in front of the at least one shaving blade, the comb elements extending toward a front of the receiving base, wherein the plurality of comb elements comprise a top surface configured to define a shaving plane.Type: ApplicationFiled: March 9, 2021Publication date: June 1, 2023Applicant: DORCO CO., LTD.Inventor: Jun Soo CHANG
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Publication number: 20230120418Abstract: The present disclosure in some embodiments provides a razor cartridge comprising: at least one shaving blade having a cutting edge; a receiving base receiving the at least one shaving blade arranged in a first direction; a cap covering at least a portion of the receiving base; and a plurality of comb elements, at least some of which are disposed in front of the at least one shaving blade, the comb elements extending toward a front of the receiving base in a second direction that is not perpendicular to the first direction, wherein the plurality of comb elements comprise a top surface configured to define a shaving plane.Type: ApplicationFiled: March 9, 2021Publication date: April 20, 2023Applicant: DORCO CO., LTD.Inventor: Jun Soo CHANG
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Patent number: 11518055Abstract: A razor handle includes a handle body including a head adapter and a grip portion extending from the head adapter; a connecting head configured to be coupled to a razor cartridge and coupled to the head adapter head so as to be pivotable around a rotational axis, the connecting head including a head side cam surface on one side thereof; and a plunger disposed on one side of the handle body and including a plunger side cam surface configured to perform a cam action with the head side cam surface, the plunger being configured to provide, through the cam action, recovery force to restore the connecting head to a rest position, wherein a contact area between the head side cam surface and the plunger side cam surface is smaller when the connecting head is deviated from the rest position than when the connecting head is in the rest position.Type: GrantFiled: July 6, 2020Date of Patent: December 6, 2022Assignee: DORCO CO., LTD.Inventor: Jun Soo Chang
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Publication number: 20220152855Abstract: An integral razor blade which is thin and has improved strength by shaping a geometrical structure of the razor blade and a razor cartridge using the same. The razor blade includes a base portion, a bent portion extending in a bent manner from one end of the base portion, and an edge portion extending from one end of the bent portion, a cutting edge being formed at one end of the edge portion. A first separation distance X between a straight line extending in a longitudinal direction from a front surface of the base portion and an end point of the cutting edge ranges from 0.3 mm to 1.0 mm.Type: ApplicationFiled: February 2, 2022Publication date: May 19, 2022Applicant: DORCO CO., LTD.Inventors: Ho Jun NOH, Jun Soo CHANG
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Patent number: 11267149Abstract: An integral razor blade which is thin and has improved strength by shaping a geometrical structure of the razor blade and a razor cartridge using the same. The razor blade includes a base portion, a bent portion extending in a bent manner from one end of the base portion, and an edge portion extending from one end of the bent portion, a cutting edge being formed at one end of the edge portion. A first separation distance X between a straight line extending in a longitudinal direction from a front surface of the base portion and an end point of the cutting edge ranges from 0.3 mm to 1.0 mm.Type: GrantFiled: July 2, 2019Date of Patent: March 8, 2022Assignee: DORCO CO., LTD.Inventors: Ho Jun Noh, Jun Soo Chang
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Patent number: 11034038Abstract: A razor handle assembly includes a gripping part gripped by a user, and a connecting part provided at one end of the gripping part to fix the cartridge. The connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder. The cartridge holder is coupled to surround the outer side of an end portion of the holder clip.Type: GrantFiled: May 18, 2018Date of Patent: June 15, 2021Assignee: DORCO CO., LTD.Inventors: Jun Soo Chang, Kyong Sik Lee, Nam Yoon Kong, Woo Gyeong Go
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Publication number: 20210008744Abstract: A razor handle includes a handle body including a head adapter and a grip portion extending from the head adapter; a connecting head configured to be coupled to a razor cartridge and coupled to the head adapter head so as to be pivotable around a rotational axis, the connecting head including a head side cam surface on one side thereof; and a plunger disposed on one side of the handle body and including a plunger side cam surface configured to perform a cam action with the head side cam surface, the plunger being configured to provide, through the cam action, recovery force to restore the connecting head to a rest position, wherein a contact area between the head side cam surface and the plunger side cam surface is smaller when the connecting head is deviated from the rest position than when the connecting head is in the rest position.Type: ApplicationFiled: July 6, 2020Publication date: January 14, 2021Applicant: DORCO CO., LTD.Inventor: Jun Soo CHANG
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Patent number: 10780598Abstract: A razor cartridge includes a housing, a guard, a cap and a plurality of razor blades installed between the guard and cap in the housing, each blade including a base portion, a bent portion extending from an end of the base portion, and an edge portion extending from an end of the bent portion with a cutting edge formed at an end of the edge portion, wherein a first distance between a straight line extending from the front of the base portion and an end point of the cutting edge is in the range of 0.3 to 1.0 mm, wherein an overlap size defined as a distance by which the first distance of one of the razor blades is overlapped by an adjacent razor blade located behind the razor blade when the adjacent razor blade is projected in the vertical direction is less than or equal to 0.5 mm.Type: GrantFiled: November 3, 2016Date of Patent: September 22, 2020Assignee: DORCO CO., LTD.Inventors: Young Ho Park, Sung Hee Son, Jun Soo Chang
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Publication number: 20190321995Abstract: An integral razor blade which is thin and has improved strength by shaping a geometrical structure of the razor blade and a razor cartridge using the same. The razor blade includes a base portion, a bent portion extending in a bent manner from one end of the base portion, and an edge portion extending from one end of the bent portion, a cutting edge being formed at one end of the edge portion. A first separation distance X between a straight line extending in a longitudinal direction from a front surface of the base portion and an end point of the cutting edge ranges from 0.3 mm to 1.0 mm.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Applicant: DORCO CO., LTD.Inventors: Ho Jun NOH, Jun Soo CHANG
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Patent number: 10369714Abstract: An integral razor blade which is thin and has improved strength by shaping a geometrical structure of the razor blade and a razor cartridge using the same. The razor blade includes a base portion, a bent portion extending in a bent manner from one end of the base portion, and an edge portion extending from one end of the bent portion, a cutting edge being formed at one end of the edge portion. A first separation distance X between a straight line extending in a longitudinal direction from a front surface of the base portion and an end point of the cutting edge ranges from 0.3 mm to 1.0 mm.Type: GrantFiled: February 24, 2016Date of Patent: August 6, 2019Assignee: DORCO Co., Ltd.Inventors: Ho Jun Noh, Jun soo Chang
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Publication number: 20180264667Abstract: A razor handle assembly includes a gripping part gripped by a user, and a connecting part provided at one end of the gripping part to fix the cartridge. The connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder. The cartridge holder is coupled to surround the outer side of an end portion of the holder clip.Type: ApplicationFiled: May 18, 2018Publication date: September 20, 2018Applicant: DORCO CO,. LTD.Inventors: Jun Soo CHANG, Kyong Sik LEE, Nam Yoon KONG, Woo Gyeong GO
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Publication number: 20170136639Abstract: A razor cartridge includes a housing, a guard, a cap; and a plurality of razor blades which are installed between the guard and cap in the housing and each includes a base portion, a bent portion extending from an end of the base portion to be bent, and an edge portion extending from an end of the bent portion, having a cutting edge formed at an end of the edge portion, a first distance between a straight line extending from the front of the base portion and an end point of the cutting edge is in the range of 0.3 to 1.0 mm, wherein an overlap size defined as a distance by which the first distance of a razor blade is overlapped by an adjacent razor blade located behind the razor blade when the adjacent razor blade is projected in the vertical direction ranges less than or equal to 0.5 mm.Type: ApplicationFiled: November 3, 2016Publication date: May 18, 2017Applicant: DORCO CO., LTD.Inventors: Young Ho PARK, Sung Hee SON, Jun Soo CHANG
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Publication number: 20160167242Abstract: An integral razor blade which is thin and has improved strength by shaping a geometrical structure of the razor blade and a razor cartridge using the same. The razor blade includes a base portion, a bent portion extending in a bent manner from one end of the base portion, and an edge portion extending from one end of the bent portion, a cutting edge being formed at one end of the edge portion. A first separation distance X between a straight line extending in a longitudinal direction from a front surface of the base portion and an end point of the cutting edge ranges from 0.3 mm to 1.0 mm.Type: ApplicationFiled: February 24, 2016Publication date: June 16, 2016Applicant: DORCO Co., Ltd.Inventors: Ho Jun NOH, Jun soo CHANG
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Patent number: 7859041Abstract: A gate structure of a semiconductor device comprising a silicon substrate having a field oxide film, a plurality of gates formed by sequentially stacking a first gate dielectric film, a first gate conductive film, and a gate silicide film on the silicon substrate. a thermal oxide film formed on a side of the first gate conductive film, a plurality of trenches formed between the gates, a second gate oxide film formed on an interior wall of each trench; and a second conductive film formed in a spacer shape on a predetermined region of the second gate oxide film, and on a side of the first gate conductive film, the gate silicide film and the thermal oxide film.Type: GrantFiled: June 16, 2009Date of Patent: December 28, 2010Assignee: Hynix Semiconductor Inc.Inventors: Young Bog Kim, Jun Soo Chang, Min Yong Lee, Yong Seok Eun
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Patent number: 7688570Abstract: A capacitor with nanotubes and a method for fabricating the same are provided. The capacitor includes: a lower electrode including a patterned conductive layer and a plurality of nanotubes formed on the patterned conductive layer in the shape of whiskers without using a catalytic layer; a dielectric layer formed on the lower electrode; and an upper electrode formed on the dielectric layer. The method includes the steps of: forming a conductive layer for forming a lower electrode; forming a nanotube array including a plurality of nanotubes formed on the conductive layer without using a catalytic layer; forming a dielectric layer on the nanotube array; and forming an upper electrode on the dielectric layer.Type: GrantFiled: October 24, 2008Date of Patent: March 30, 2010Assignee: Hynix Semiconductor Inc.Inventors: Eun-A Lee, Ho-Jin Cho, Young-Dae Kim, Jun-Soo Chang, Su-Jin Chae, Hai-Won Kim
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Publication number: 20090256209Abstract: A gate structure of a semiconductor device comprising a silicon substrate having a field oxide film, a plurality of gates formed by sequentially stacking a first gate dielectric film, a first gate conductive film, and a gate silicide film on the silicon substrate. a thermal oxide film formed on a side of the first gate conductive film, a plurality of trenches formed between the gates, a second gate oxide film formed on an interior wall of each trench; and a second conductive film formed in a spacer shape on a predetermined region of the second gate oxide film, and on a side of the first gate conductive film, the gate silicide film and the thermal oxide film.Type: ApplicationFiled: June 16, 2009Publication date: October 15, 2009Applicant: HYNIX SEMICONDUCTOR INC.Inventors: Young Bog Kim, Jun Soo Chang, Min Yong Lee, Yong Seok Eun
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Patent number: 7563673Abstract: Disclosed herein is a method for forming a gate structure of a semiconductor device. The method comprises forming a plurality of gates including a first gate dielectric film, a first gate conductive film, and a gate silicide film sequentially stacked on a silicon substrate having a field oxide film, forming a thermal oxide film on a side of the first gate conductive film, etching the silicon substrate exposed between the plurality of gates to a predetermined depth to form a plurality of trenches, forming a second gate oxide film on the interior wall of the trenches, and forming a second gate conductive film in a spacer shape on a predetermined region of the second gate oxide film, and on a side of the first gate conductive film, the gate silicide film, and the thermal oxide film.Type: GrantFiled: November 8, 2005Date of Patent: July 21, 2009Assignee: Hynix Semiconductor Inc.Inventors: Young Bog Kim, Jun Soo Chang, Min Yong Lee, Yong Seok Eun
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Publication number: 20090140385Abstract: A capacitor with nanotubes and a method for fabricating the same are provided. The capacitor includes: a lower electrode including a patterned conductive layer and a plurality of nanotubes formed on the patterned conductive layer in the shape of whiskers without using a catalytic layer; a dielectric layer formed on the lower electrode; and an upper electrode formed on the dielectric layer. The method includes the steps of: forming a conductive layer for forming a lower electrode; forming a nanotube array including a plurality of nanotubes formed on the conductive layer without using a catalytic layer; forming a dielectric layer on the nanotube array; and forming an upper electrode on the dielectric layer.Type: ApplicationFiled: October 24, 2008Publication date: June 4, 2009Inventors: Eun-A Lee, Ho-Jin Cho, Young-Dae Kim, Jun-Soo Chang, Su-Jin Chae, Hai-Won Kim
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Patent number: 7463476Abstract: A capacitor with nanotubes and a method for fabricating the same are provided. The capacitor includes: a lower electrode including a patterned conductive layer and a plurality of nanotubes formed on the patterned conductive layer in the shape of whiskers without using a catalytic layer; a dielectric layer formed on the lower electrode; and an upper electrode formed on the dielectric layer. The method includes the steps of: forming a conductive layer for forming a lower electrode; forming a nanotube array including a plurality of nanotubes formed on the conductive layer without using a catalytic layer; forming a dielectric layer on the nanotube array; and forming an upper electrode on the dielectric layer.Type: GrantFiled: June 7, 2005Date of Patent: December 9, 2008Assignee: Hynix Semiconductor Inc.Inventors: Eun-A Lee, Ho-Jin Cho, Young-Dae Kim, Jun-Soo Chang, Su-Jin Chae, Hai-Won Kim