知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.019 seconds)

    Thermochromic writing instrument
    21.
    发明授权
    Thermochromic writing instrument 有权

    公开(公告)号：US10017004B2

    公开(公告)日：2018-07-10

    申请号：US15461282

    申请日：2017-03-16

    Applicant: Dong-A Pencil Co., Ltd.

    Inventor： Hak Jae Kim

    IPC: 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.

    Ballpoint pen
    23.
    外观设计
    Ballpoint pen 有权

    公开(公告)号：USD996522S1

    公开(公告)日：2023-08-22

    申请号：US29760700

    申请日：2020-12-03

    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 ball point pen which form no part of the claimed design.

    THERMOCHROMIC MICRO PARTICLES AND THERMOCHROMIC INK COMPOSITION, WRITING APPARATUS AND SMART WINDOW USING THE SAME
    28.
    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：US20160376457A1

    公开(公告)日：2016-12-29

    申请号：US15186253

    申请日：2016-06-17

    Applicant: Dong-A Pencil Co., Ltd.

    Inventor： Hak Jae KIM

    IPC: C09D11/50 ,  C09D163/00 ,  E06B9/24 ,  C09D11/17

    CPC classification number: C09D11/50 ,  B41M5/284 ,  B41M5/287 ,  B41M5/3333 ,  B41M5/3335 ,  B43K7/02 ,  B43K8/03 ,  C09D11/17 ,  C09D163/00 ,  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 and a dye, the phase change material including a phenol-based compound containing an aliphatic functional group having a carbon number of 6 or more; 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和染料的核心部分，所述相变材料包括含有碳数为6以上的脂肪族官能团的酚类化合物; 以及包含聚合物树脂的壳层。

Patent Agency Ranking