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    Pen
    1.
    外观设计
    Pen 有权

    公开(公告)号：USD1046966S1

    公开(公告)日：2024-10-15

    申请号：US29783055

    申请日：2021-05-11

    Applicant: DONG-A PENCIL CO., LTD.

    Designer： Hakjae Kim

    Abstract: FIG. 1 is a perspective view of the pen of the present invention;
    FIG. 2 is a front view thereof;
    FIG. 3 is a rear view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a right side view thereof;
    FIG. 6 is top view thereof; and,
    FIG. 7 is a bottom view thereof.
    The broken lines in the figures depict portions of the pen which form no part of the claimed design.

    Ballpoint pen
    2.
    外观设计
    Ballpoint pen 有权

    公开(公告)号：USD1039048S1

    公开(公告)日：2024-08-13

    申请号：US29813003

    申请日：2021-10-26

    Applicant: DONG-A PENCIL CO., LTD.

    Designer： Hakjae Kim

    Abstract: FIG. 1 is a perspective view of the ballpoint pen of the present invention;
    FIG. 2 is a front view thereof;
    FIG. 3 is a rear view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a right side view thereof;
    FIG. 6 is top view thereof; and,
    FIG. 7 is a bottom view thereof.
    The broken lines in the figures depict portions of the ballpoint pen which form no part of the claimed design.

    METHOD OF PREPARING COATED PIGMENT AND WATER-BASED INK COMPOSITION CONTAINING COATED PIGMENT PREPARED THEREBY
    3.
    发明公开
    METHOD OF PREPARING COATED PIGMENT AND WATER-BASED INK COMPOSITION CONTAINING COATED PIGMENT PREPARED THEREBY 审中-公开

    公开(公告)号：US20240218187A1

    公开(公告)日：2024-07-04

    申请号：US18353273

    申请日：2023-07-17

    Applicant: DONG-A PENCIL CO., LTD.

    Inventor： Jin Hee SHIN ,  Jungju EOM ,  Nara JO ,  Jung Gul AN

    IPC: C09C3/08 ,  C09D11/17 ,  C09D11/18

    CPC classification number: C09C3/08 ,  C09D11/17 ,  C09D11/18

    Abstract: Proposed are a method of preparing a coated pigment, which includes: preparing a pigment dispersion by mixing and dispersing first and second surfactants with a pigment in water; and coating the pigment by adding and mixing an emulsion obtained by mixing and emulsifying a monomer, a cross-linker, and a polymerizable surfactant, to and with the pigment dispersion, a water-based ink composition containing a monovalent cationic metal ion thickener and the coated pigment prepared thereby, and a water-based writing instrument including the ink composition. When preparing the coated pigment by the above method, there are advantages of improving pigment dispersion stability and adsorption stability of a coating layer and controlling strength according to the use of the cross-linker. In addition, when using the coated pigment as an ink pigment, adhesiveness and lubricity can be improved while providing a better writing experience.

    Knock type pen
    5.
    发明授权
    Knock type pen 有权

    公开(公告)号：US10525761B2

    公开(公告)日：2020-01-07

    申请号：US15857130

    申请日：2017-12-28

    Applicant: DONG-A PENCIL CO., LTD.

    Inventor： Hakjae Kim

    IPC: B43K24/04 ,  B43K7/12 ,  B43K24/08 ,  B43K24/06 ,  B43K24/02

    Abstract: A knock type pen includes a body in which a lead and a spring which provides an elastic force to the lead are received, and a knock section which is coupled to a rear end of the body and includes a knock body and a rotary cam to push the lead out of a tip of the body or receive the lead inside, wherein the knock type pen includes a cutout groove which extends in one direction along an axial direction of the body, a slit hole which extends along a downward direction from an upper end of the cutout groove, an insert hole which is formed in a direction perpendicular to the slit hole from the upper end of the cutout groove, and a locking section which moves up and down along the slit hole.

    KNOCK TYPE PEN
    6.
    发明申请
    KNOCK TYPE PEN 审中-公开

    公开(公告)号：US20190160852A1

    公开(公告)日：2019-05-30

    申请号：US15857227

    申请日：2017-12-28

    Applicant: DONG-A PENCIL CO., LTD.

    Inventor： Hakjae Kim

    IPC: B43K24/04 ,  B43K24/08 ,  B43K7/12

    Abstract: The present disclosure relates to a knock type pen including a housing in which a lead storing ink is received, a knock element which is placed moveably up and down in the housing, and has a button section protruding from an open upper side of the housing in an upper end part and a toothed protrusion coupled to a lower end part, and a rotary cam which is disposed between the lead and the knock element and rotatably placed in the housing, and has a guide protrusion which comes into contact with the toothed protrusion.

    THERMOCHROMIC WRITING INSTRUMENT
    7.
    发明申请
    THERMOCHROMIC WRITING INSTRUMENT 有权

    公开(公告)号：US20170274700A1

    公开(公告)日：2017-09-28

    申请号：US15461282

    申请日：2017-03-16

    Applicant: Dong-A Pencil Co., Ltd.

    Inventor： Hak Jae KIM

    IPC: B43K24/03

    CPC classification number: B43K24/03 ,  B43K29/02

    Abstract: The present invention relates to relates to a thermochromic writing instrument that may use thermochromic ink and erase a written content by generating heat with a frictional member provided thereat.An exemplary embodiment of the present invention provides a thermochromic writing instrument including: a body configured to be provided with a knock mechanism that exposes a thermochromic writing part to the outside or accommodates the thermochromic writing part; a rib configured to be provided at an inner circumferential surface of the body to protrude in a central line direction of the body; a moving member configured to move along the inside of the body; a frictional member configured to be provided at one side of the moving member to protrude out of the body; a weight configured to be provided at the other side of the moving member to contact or to not contact the knock mechanism according to movement of the moving member; and a guide configured to be disposed between the outside of the moving member and the inside of the body to move along the inside of the body and to be spaced apart from an outer circumferential surface of the moving member by a predetermined interval.

    THERMOCHROMIC MICRO PARTICLES AND THERMOCHROMIC INK COMPOSITION, WRITING APPARATUS AND SMART WINDOW USING THE SAME
    8.
    发明申请
    THERMOCHROMIC MICRO PARTICLES AND THERMOCHROMIC INK COMPOSITION, WRITING APPARATUS AND SMART WINDOW USING THE SAME 有权
    热敏微粒和热变色墨水组合物，书写装置和使用其的SMART窗口

    公开(公告)号：US20160376458A1

    公开(公告)日：2016-12-29

    申请号：US15190090

    申请日：2016-06-22

    Applicant: Dong-A Pencil Co., Ltd.

    Inventor： Hak Jae KIM

    IPC: C09D11/50 ,  B43K7/02 ,  B43K8/03 ,  C09D11/17 ,  E06B9/24

    CPC classification number: C09D11/50 ,  B41M5/284 ,  B41M5/287 ,  B41M5/3333 ,  B41M5/3335 ,  B43K7/02 ,  B43K8/03 ,  C09D11/17 ,  C09K9/02 ,  E06B9/24 ,  E06B2009/2417

    Abstract: The present invention relates to thermochromic micro particles capable of stably implementing a high chromogenic property and a decolorization property and having an improved erasing property, thermal resistance, and chemical resistance, and a thermochromic ink composition, a writing apparatus, and a smart window using the same. The thermochromic micro particles comprise a core part including a phase change material, a dye, and a developer, the phase change material including at least one selected from the group consisting of at least one chain hydrocarbon having a carbon number of 8 or more, a hydrated inorganic salt, alcohol having a carbon number of 3 or more, and polyalkyleneglycol; and a shell layer including a polymer resin.

    Abstract translation: 本发明涉及能够稳定地实现高显色性和脱色性能并且具有改善的擦除性，耐热性和耐化学性的热致变色微粒子，以及热变色油墨组合物，书写装置和智能窗，其使用 相同。 所述热致变色微粒包括包含相变材料，染料和显色剂的核心部分，所述相变材料包括选自碳数为8以上的至少一种链烃的至少一种， 水合无机盐，碳数为3以上的醇和聚亚烷基二醇; 以及包含聚合物树脂的壳层。

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