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公开(公告)号：US20190193454A1
公开(公告)日：2019-06-27
申请号：US16327176
申请日：2017-08-24
摘要： To provide a writing instrument capable of further improving durability of a writing nib without impairing writing performance even when writing is performed with a heavy writing load. A writing instrument A having a writing part formed of at least a writing nib 30 made of a porous body and a retainer 40 made of a hard material, in which the protrusion amount of the distal end of the writing nib 30 from the retainer 40 is 0.65 mm or more and 1.05 mm or less and/or 40% or more and 65% or less of the thickness of the writing nib 30.
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公开(公告)号：US20210316566A1
公开(公告)日：2021-10-14
申请号：US17266368
申请日：2019-08-07
发明人： Toshimi KAMITANI
摘要： To provide a pen tip that can enhance its color brilliance and color distinctiveness as well as providing a writing tool having the pen tip. A pen tip A of the present invention is a pen tip equipped with a pen core 20 containing a concealing material, and is characterized in that the pen core has the lightness (L* value) of 80 or higher in the L*a*b* (CIELAB) color system. The writing tool, for example, includes a retention body 10 having a visible part allowing visual recognition of the writing direction and the pen tip A having the above configuration and attached with the retention body 10.
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公开(公告)号：US20150298489A1
公开(公告)日：2015-10-22
申请号：US14647925
申请日：2013-12-03
发明人： Toshimi KAMITANI , Satoru BANZAI , Yoshiharu NAMIKI , Yosuke SETAGAWA , Hitoshi KINO , Tooru NAKAJIMA , Takanori SUZUKI
CPC分类号： B43K23/12 , B43K5/18 , B43K7/01 , B43K7/02 , B43K7/03 , B43K7/08 , B43K7/10 , B43K8/026 , B43K8/03 , B43K8/04 , B43K8/06 , B43K8/143
摘要： Provided is a writing instrument suited to ballpoint pens, marking pens and the like in which a flow pressure of an ink applied to a pen tip is controlled to a fixed level to prevent an ink direct flow phenomenon reverse flow phenomenon. The above writing instrument comprises a pen tip disposed at a front part of an ink tank, an ink received in the ink tank, a follower filled at a rear part of the ink, and a capillary porous member provided with a capillary force, which is arranged at a space part between a rear part of the follower and a rear end part of the ink tank in a state in which the follower is filled, wherein the pen tip is sealed when a cap is put on the writing instrument.
摘要翻译： 提供了一种适用于圆珠笔，标记笔等的书写工具，其中施加到笔尖的油墨的流动压力被控制到固定水平以防止油墨直接流动现象逆流现象。 上述书写工具包括设置在墨罐前部的笔尖，容纳在墨水容器中的墨水，填充在墨水后部的随动件以及设置有毛细管力的毛细管多孔件， 布置在从动件的填充状态下从动件的后部与墨水罐的后端部之间的空间部分，其中当将盖子放在书写工具上时，笔尖被密封。
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公开(公告)号：US20240237806A1
公开(公告)日：2024-07-18
申请号：US18401841
申请日：2024-01-02
发明人： Toshimi KAMITANI , Kei OOMOTO , Akihiro NAKADA
CPC分类号： A45D34/04 , A61J1/1418 , A45D2200/1018
摘要： An applicator is provided with a container containing an application liquid, an inner plug arranged to close the mouth of the container and opens the valve against the biasing force of a spring member to allow the application liquid in the container to be discharged, and the application member arranged to cover an application liquid outlet of the inner plug and enable the application to the application surface by exuding the application liquid discharged through the inner plug. The application unit with the inner plug has a liquid flow passage that provides a flow resistance to the application liquid from inside the container to the application unit, and the total pressure loss per 1 m3/s in the liquid flow passage is equal to or more than 1×107 Pa·s and less than 1×1010 Pa·s or less.
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公开(公告)号：US20240051329A1
公开(公告)日：2024-02-15
申请号：US18264849
申请日：2022-02-09
摘要： Provided is a writing implement that maximizes the effective area of a viewer portion allowing visual recognition in the writing direction and that facilitates writing at a high level, at the same time. This writing implement is a writing implement A, including for example, a pen tip 20 that feeds ink from a writing implement body 10 and has a viewer portion 33 allowing visual recognition in the writing direction. The pen tip 20 is comprised of, at least, a writing part 25 and a retainer 30 having the viewer portion 33, an ink feeder portion 26 for feeding the ink from the writing implement body 10 to the writing part 25. The minimum width X of the viewer portion 33 is 3.7 mm or greater and a length Y of the viewer portion 33 is 7.4 mm or greater. The ink feeder portion 26 is arranged on one side of the viewer portion 33. Specifically, the ink feeder portion 26 is preferably adapted to be positioned on a near side during writing (on such a side that the pen tip 20 is located on an obtuse angle side of the ink feeder portion 26).
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公开(公告)号：US20210237502A1
公开(公告)日：2021-08-05
申请号：US17059365
申请日：2019-05-28
IPC分类号： B43K8/04
摘要： Provided is a writing implement having a pen tip that can achieve excellent ink outflow performance and an increase in the effective area of a viewer portion allowing recognition of the writing direction, relative to the whole pen tip. The writing implement is a writing implement A which includes a pen tip 20 feeding ink from a writing implement body 10 and having a viewer portion through which the writing direction can be recognized, and is characterized in that the pen tip 20 is configured of, a least, a writing part 30 and a holding body 40 having a viewer portion 43, and the holding portion 40 has a sheet-shaped ink feeder 25 formed with slits or bumps on the surface and inside thereof to produce a capillary action.
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7.发明公开公开(公告)号：US20230406029A1
公开(公告)日：2023-12-21
申请号：US18248089
申请日：2021-10-07
摘要： Provided is a fiber-bundled part for writing instruments having excellent strength and durability, as well as a pen tip and a writing instrument using the fiber-bundled part, which can be suitably used for pen tips, ink feed cores and relay cores of writing instruments such as marking pens and felt-tip pens. The fiber-bundled part for writing instruments of the present disclosure is used for the ink feed core leading to the pen tip or a writing pen core, and comprises a multifilament of long fibers having different melting points, and the multifilament at least contain crimped fibers.
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公开(公告)号：US20220324250A1
公开(公告)日：2022-10-13
申请号：US17633751
申请日：2020-08-03
发明人： Hirotake IZAWA , Toshimi KAMITANI
摘要： Provided is a writing implement having a pen tip with a viewer part where the effective area for allowing visual recognition of the writing direction relative to the entire pen tip is maximized without impairing ink discharge. The pen tip feeds ink from the writing implement body, and the writing direction can be recognized through the viewer part. The pen tip has a holding body with the viewer part and a writing part that attaches a writing core having a U-shaped or L-shaped configuration to the holding body. The part of the writing core in contact with the side surface of the holding body is formed to have a square cross-section.
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公开(公告)号：US20150367672A1
公开(公告)日：2015-12-24
申请号：US14816314
申请日：2015-08-03
摘要： In order to provide a writing instrument applicable to an applicator, in which a writing or applying direction can be visually recognized in a broad range at a visual part of a tip, the writing instrument is endowed with a constitution in which a tip 40 is equipped with a porous member 45 as a writing part and a holding member 55 holding the above porous member 45 and having at least one liquid guiding part 50 for feeding an liquid to the writing or applying part, which comprises a relay porous member 30 for feeding a liquid contained in a instrument main body 10 to the liquid guiding part 50 provided in the holding member 55 and in which the holding member 55 is a visible part enabling to visually recognize a writing or an applying direction, wherein an area ratio of the above visible part on the front or side face is 40% or more of the tip 40 protruding from a tip part of the instrument main body.
摘要翻译： 为了提供适用于施用器的书写工具，其中书写或施加方向可以在尖端的视觉部分的宽范围内被视觉识别，书写工具被赋予具有尖端40的构造 具有作为书写部分的多孔构件45和保持上述多孔构件45的保持构件55，并具有用于将液体供给到书写或施加部分的至少一个液体引导部50，该液体引导部50包括用于馈送 仪器主体10中的液体被提供到设置在保持构件55中的液体引导部50，并且保持构件55是能够视觉识别书写或施加方向的可见部分，其中上述可见的面积比 前端或侧面的一部分是从仪器主体的前端突出的尖端40的40％以上。
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