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1. 发明授权

US11065907B2 Hand tools, cosmetic devices and writing instruments 有权
公开(公告)号：US11065907B2
公开(公告)日：2021-07-20
申请号：US16657371
申请日：2019-10-18
申请人： Kotobuki & Co., Ltd. , G4 DE MEXICO SA DE CV
发明人： Hidehei Kageyama , Takeshi Wakayama
IPC分类号： B43K24/06 , A45D40/20 , B43K7/00
摘要： A hand tool includes an outer barrel, an inner barrel housed in the outer barrel, and a rear barrel assembled to the outer barrel and the inner barrel. One of the outer barrel and the inner barrel includes a cam follower protruding in a radial direction of the hand tool, the other of the outer barrel and the inner barrel includes a cam groove engaging with the cam follower, and the cam follower is supported to be movable in a radial direction.

2. 外观设计

USD908796S1 Sleeve for a mechanical pencil 有权
公开(公告)号：USD908796S1
公开(公告)日：2021-01-26
申请号：US35508442
申请日：2019-06-07
申请人： Kotobuki & Co., Ltd.
设计人： Hidehei Kageyama , Takeshi Wakayama

3. 发明授权

US10293632B2 Writing instrument 有权
公开(公告)号：US10293632B2
公开(公告)日：2019-05-21
申请号：US15974059
申请日：2018-05-08
申请人： KOTOBUKI & CO., LTD.
发明人： Takeshi Wakayama , Yoshio Noguchi , Hidehei Kageyama
IPC分类号： B43K21/16 , B43K21/22
摘要： A writing instrument according to an embodiment of the invention including, a chuck that chucks a writing lead, wherein the chuck includes a first chuck pawl which comes into point contact or line contact with the writing lead to press the writing lead so as to apply first contact stress to the writing lead; and a second chuck pawl which presses the writing lead so as to apply, to the writing lead, second contact stress that is lower than the first contact stress, and the first contact stress is configured such that, when a prescribed impact is applied to the writing lead, a contact portion of the writing lead subjected to the first contact stress fractures and absorbs the prescribed impact.

4. 发明授权

US09738112B2 Mechanical pencil 有权
公开(公告)号：US09738112B2
公开(公告)日：2017-08-22
申请号：US14780226
申请日：2014-03-26
申请人： KOTOBUKI & CO., LTD
发明人： Hidehei Kageyama , Tadao Odaka
IPC分类号： B43K21/22 , B43K21/18 , B43K21/02
CPC分类号： B43K21/22 , B43K21/02 , B43K21/18
摘要： A mechanical pencil is including a tubular shaft, a chuck unit movably arranged in the shaft, a front rotary element adapted to be moved rearward as the unit is moved rearward, a rear rotary element adapted to be moved rearward as the front rotary element is moved rearward, a conversion means for causing the rear rotary element to rotate in a normal rotational direction as the rear rotary element is moved rearward and allowing the rear rotary element to rotate in a reverse rotational direction as the rear rotary element is moved forward, a normal directional rotation transmitting means for allowing the front rotary element to be rotated in the normal rotational direction and the rear rotary element to be idly rotated, and a reverse directional rotation restricting mechanism allowing the normal directional rotation of the front rotary element but preventing the reverse directional rotation of the front rotary element.

5. 发明授权

US08970560B2 Writing instrument 有权
标题翻译：书写工具
公开(公告)号：US08970560B2
公开(公告)日：2015-03-03
申请号：US13889174
申请日：2013-05-07
申请人： Kotobuki & Co., Ltd.
发明人： Tadashi Keda , Sachio Arai , Hidehei Kageyama
IPC分类号： G06F3/033 , G06F3/0354 , B43K23/12 , B43K24/08 , B43K29/02 , B43K29/08 , B43K29/20
CPC分类号： G06F3/03545 , B43K23/12 , B43K24/08 , B43K29/02 , B43K29/08 , B43K29/20
摘要： A writing instrument includes a cylindrical barrel and an end cover having a robust structure and attached to the cylindrical barrel. The end cover includes a cylindrical base attached to a rear end portion of the cylindrical barrel, a cover body fitted around an outer peripheral surface of the cylindrical base, a stopper ring fitted around an outer peripheral surface of at least a fitted portion between the cylindrical base and the cover body, and a cooperation structure for enhancing a holding force which is exerted on the cover body by the cylindrical base and the stopper ring and for joining the cylindrical base, the cover body, and the stopper ring together to form a joined unit which includes the cylindrical base, the cover body and the stopper ring.
摘要翻译：书写工具包括圆柱形筒和具有坚固结构并连接到圆柱形筒的端盖。所述端盖包括：圆柱形基座，其安装在所述圆柱形筒体的后端部;盖体，其围绕所述圆筒形基座的外周面安装;止动环，其围绕至少一个装配部分的外圆周表面，底座和盖体，以及用于增强由圆柱形基座和止动环施加在盖体上的保持力并用于将圆柱形基座，盖体和止动环接合在一起的接合结构，单元，其包括圆柱形基座，盖体和止动环。

6. 外观设计

USD1010733S1 Mechanical pencil 有权
公开(公告)号：USD1010733S1
公开(公告)日：2024-01-09
申请号：US29735216
申请日：2020-05-19
申请人： MITSUBISHI PENCIL COMPANY, LTD. , KOTOBUKI & CO., LTD.
设计人： Hiroaki Kondo , Hidehei Kageyama , Takaaki Nakata , Tadao Odaka , Takeshi Wakayama
摘要： FIG. 1 is a perspective view of a mechanical pencil, showing our new design;
FIG. 2 is a front view of the mechanical pencil;
FIG. 3 is a rear view of the mechanical pencil;
FIG. 4 is a top view of the mechanical pencil;
FIG. 5 is a bottom view of the mechanical pencil;
FIG. 6 is a left side view of the mechanical pencil;
FIG. 7 is a right side view of the mechanical pencil; and,
FIG. 8 is an enlarged bottom view of the mechanical pencil.
The parts shown in broken lines are portions of the mechanical pencil that form no part of the claimed design.

7. 发明授权

US11090969B2 Mechanical pencil 有权
公开(公告)号：US11090969B2
公开(公告)日：2021-08-17
申请号：US16725646
申请日：2019-12-23
申请人： Kotobuki & Co., Ltd. , Pica-Marker Vermögens GmbH & Co. KG
发明人： Hidehei Kageyama , Tadao Odaka , Toshikazu Sasaki
IPC分类号： B43K21/22 , B43K24/08
摘要： A mechanical pencil includes a writing lead, a chuck that chucks the writing lead and feeds the writing lead forward, and a shaft tube for housing the writing lead and the chuck. When a click operation for feeding the chuck forward is performed, a jet stream flowing forward is generated inside the shaft tube.

8. 发明申请

US20210162797A1 WRITING INSTRUMENT AND METHOD FOR MANUFACTURING WRITING INSTRUMENT 有权
公开(公告)号：US20210162797A1
公开(公告)日：2021-06-03
申请号：US17169771
申请日：2021-02-08
申请人： Kotobuki & Co., Ltd.
发明人： Hidehei Kageyama , Takeshi Wakayama
IPC分类号： B43K21/16 , B43K21/00 , B43K29/02 , B43K21/22
摘要： A method for manufacturing a writing instrument includes inject molding a cushion spring of the writing instrument to form the cushion spring as one piece, and axially pushing out the cushion spring from a molding die set. The cushion spring elastically supports a tip of the writing instrument in an axial direction to a barrel of the writing instrument. The forming of the cushion spring includes forming a plurality of apertures in the cushion spring, one of the apertures being relatively arranged with another one of the apertures by rotations of angles at 90 degrees about the axial direction on an outer peripheral surface thereof, and forming a plurality of displacement regulating protrusions, one of the protrusions being relatively arranged with another one of the protrusions by rotations of angles at 90 degrees about the axial direction.

9. 外观设计

USD871502S1 Sleeve with cushion spring for mechanical pencil 有权
公开(公告)号：USD871502S1
公开(公告)日：2019-12-31
申请号：US35506243
申请日：2018-06-19
申请人： KOTOBUKI & CO., LTD.
设计人： Hidehei Kageyama , Takeshi Wakayama
摘要： 1.-2. Sleeve with cushion spring for mechanical pencil
1.1 : Perspective
1.2 : Front
1.3 : Top
1.4 : Right
1.5 : Left
1.6 : Cross-sectional
1.7 : Cross-sectional
1.8 : View showing state of use
1.9 : Enlarged view showing state of use
2.1 : Perspective
2.2 : Front
2.3 : Top
2.4 : Right
2.5 : Left
2.6 : Cross-sectional
2.7 : Cross-sectional
2.8 : View showing state of use
2.9 : Enlarged view showing state of use
Each article is a sleeve formed with a cushion spring is disposed in a mechanical pencil; when a writing lead is loaded with a writing pressure, the cushion spring is compressed, and an excessive writing pressure is released to prevent the writing lead from breaking; parts shown by broken lines do not constitute a claimed design; thin lines represent contours showing shadows only, and do not represent ornamentations nor decorations; views 1.8, 1.9, 2.8 and 2.9 form no part of the claimed design; back views are omitted because they are mirror images of the front views; bottom views are omitted because they are identical to the top views; cross-sectional views 1.6, 1.7, 2.6, and 2.7 show the cross-sections of views 1.2, 1.3, 2.2 and 2.3, respectively.

10. 外观设计

USD895729S1 Mechanical pencil 有权
公开(公告)号：USD895729S1
公开(公告)日：2020-09-08
申请号：US29678476
申请日：2019-01-29
申请人： Kotobuki & Co., Ltd.
设计人： Hidehei Kageyama , Takeshi Wakayama
摘要： FIG. 1 is a perspective view of a mechanical pencil, showing my new design;
FIG. 2 is a front view of the mechanical pencil of FIG. 1 (the back view being a mirror image of the front view shown in FIG. 2);
FIG. 3 is a top view of the mechanical pencil of FIG. 1;
FIG. 4 is a bottom view of the mechanical pencil of FIG. 1;
FIG. 5 is a left side view of the mechanical pencil of FIG. 1;
FIG. 6 is a right side view of the mechanical pencil of FIG. 1; and,
FIG. 7 is an enlarged view of a portion 7 shown in FIG. 5.

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