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1. 发明授权

US5915871A Ball-point pen cap 失效
标题翻译：圆珠笔帽
公开(公告)号：US5915871A
公开(公告)日：1999-06-29
申请号：US927361
申请日：1997-09-09
申请人： Seiichi Kobayashi , Kazuhiko Furukawa , Hiroaki Koyama , Toru Kitao
发明人： Seiichi Kobayashi , Kazuhiko Furukawa , Hiroaki Koyama , Toru Kitao
IPC分类号： B43K1/08 , B43K5/18 , B43K23/12 , B43K23/08
CPC分类号： B43K5/1818 , B43K1/086 , B43K1/088 , B43K23/12 , B43K23/122 , B43K5/18 , B43K5/1881
摘要： A pen cap having at least two engaging portions (59f, 59r) specifically adapted to engage a receiving-side engaging portion (51f) formed on the mouthpiece-side end (7) of a hollow barrel and a receiving-side engaging portion (51r) formed on the tail-plug-side end of the hollow barrel (9), respectively. The engaging portions on the cap are at different locations along the cap's longitudinal axis. Furthermore, the engaging portions on the cap have their engaging surfaces disposed radially outward at different distances relative to the cap's longitudinal axis.
摘要翻译：一种具有至少两个接合部分（59f，59r）的笔帽，其特别适于与形成在中空筒的接口侧端部（7）上的接收侧接合部分（51f）接合，以及接收侧接合部分（51r ）分别形成在中空筒（9）的尾塞侧端部。帽上的接合部分沿着帽的纵向轴线处于不同的位置。此外，盖上的接合部分具有相对于盖的纵向轴线以不同的距离径向向外设置的接合表面。

2. 发明授权

US5711626A Ball-point pen with back flow stop 失效
标题翻译：圆珠笔带回流挡
公开(公告)号：US5711626A
公开(公告)日：1998-01-27
申请号：US501077
申请日：1995-08-04
申请人： Seiichi Kobayashi , Kazuhiko Furukawa , Hiroaki Koyama , Toru Kitao
发明人： Seiichi Kobayashi , Kazuhiko Furukawa , Hiroaki Koyama , Toru Kitao
IPC分类号： B43K1/08 , B43K5/18 , B43K23/12 , B43M11/02
CPC分类号： B43K5/1818 , B43K1/086 , B43K1/088 , B43K23/12 , B43K23/122 , B43K5/18 , B43K5/1881
摘要： A ball-point pen capable of preventing back leakage of ink when the pen is used to write with the ball-point tip above the ink reservoir. The pen has a ball-point tip (15); an ink reservoir (17) and a joint (19) connecting the ink reservoir with the tip for delivering ink to the tip. The joint has a tip-side bore (37a) and reservoir-side bore (33a) connected by a communicating hole (45), for allowing ink to pass from the reservoir-side bore to the tip-side bore. The communicating hole (45) is composed of a large-diameter portion (45b) and a small-diameter portion (45s) connected to the tip-side bore and the reservoir-side bore, respectively, and is eccentric to both bores. A ball 49 having a greater diameter than the bore diameter of the small-diameter portion is disposed to be freely movably in at least a part of a space formed between the rear end of the tip and the large diameter portion when the tip is fitted into the tip-side bore. When the pen is used to write with the tip above the ink reservoir, the ball closes the communicating hole preventing ink from leaking back to the reservoir.
摘要翻译： PCT No.PCT / JP94 / 02040 Sec。 371日期：1995年8月4日 102（e）日期1995年8月4日PCT 1994年12月5日PCT公布。公开号WO95 / 15859 日期：1995年6月15日一种圆珠笔，当笔用于墨盒上方的圆珠笔尖时，能够防止油墨反向泄漏。笔具有圆珠笔尖（15）; 墨水储存器（17）和将储墨器与用于将墨水输送到末端的末端连接的接头（19）。接头具有通过连通孔（45）连接的前端侧孔（37a）和贮存器侧孔（33a），用于允许油墨从储存器侧孔口传送到顶端侧孔。连通孔45由分别连接到前端侧孔和储存器侧孔的大径部45b和小直径部45s构成，并且对于两个孔偏心。具有比小直径部分的孔直径大的直径的球49设置成当尖端被装配到尖端的后端和大直径部分之间形成的空间的至少一部分中时可自由移动尖端侧孔。当笔用墨水盒上方的笔尖写入时，球关闭连通孔，防止墨水泄漏回储存器。

3. 发明授权

US06435747B1 Double ended direct-feed type writing implement 有权
公开(公告)号：US06435747B1
公开(公告)日：2002-08-20
申请号：US09779176
申请日：2001-02-08
申请人： Kazuhiko Furukawa , Hiroaki Koyama , Takeshi Kobayashi , Yojiro Sano , Yosuke Mito
发明人： Kazuhiko Furukawa , Hiroaki Koyama , Takeshi Kobayashi , Yojiro Sano , Yosuke Mito
IPC分类号： B43K2700
摘要： A direct-feed type writing implement having two ends includes an ink tank and a pair of writing points, arranged at opposite ends of the ink tank. An ink collector is provided for each writing point. An air/liquid exchanger adjusts the internal pressure inside the ink tank by use of capillarity. An ink feeder is provided for each writing point. Each ink feeder includes a center core for feeding ink to the writing point. Air is inhibited from flowing into the ink tank through the ink collector air/liquid exchanger located at one end while the pen is being used for writing at the opposite end.

4. 发明授权

US5871296A Clicking-type writing implement 失效
标题翻译：点击式书写工具
公开(公告)号：US5871296A
公开(公告)日：1999-02-16
申请号：US696352
申请日：1996-08-13
申请人： Kazuhiko Furukawa , Hiroaki Koyama
发明人： Kazuhiko Furukawa , Hiroaki Koyama
IPC分类号： B43K5/18 , B43K7/00 , B43K7/08 , B43K24/08 , B43K7/12 , B43K24/00
CPC分类号： B43K24/084 , B43K5/1881 , B43K7/005 , B43K7/08
摘要： A clicking-type writing implement includes a writing element having a writing portion at its distal end, a spring for urging the writing element toward the end, and a clicking rod loosely fitted interlocked with the writing element so as to project from a barrel cylinder. Upon depression of the clicking rod, the engaging rib of a rotor in the barrel cylinder and the engaging bead in the inner cylinder engage with each other, so that the writing element projects and stays projected from a front portion of the barrel cylinder. This clicking-type writing implement also has a so-called double clicking mechanism and a safety mechanism. According to the double clicking mechanism, the clicking rod is projected upon depression and is retracted upon further depression. According to the safety mechanism, when the engaging bead and the engaging rib engage with each other, the projecting state of the writing portion of the writing element is maintained, and when the engaging bead is lifted, the writing element is retracted. No cam surfaces are formed on the inner surface of the barrel cylinder. In the inner cylinder, a cam is formed on the front edge of a cylindrical portion inserted and fixed in the barrel cylinder.
摘要翻译：点击式书写工具包括在其远端具有书写部分的书写元件，用于向书写元件朝向端部推动的弹簧，以及与书写元件互锁并与筒体突出的松动配合的咔clicking杆。在按压咔嗒杆时，筒体中的转子的接合肋和内筒中的接合凸缘彼此接合，使得书写元件从筒体的前部伸出并保持突出。这种点击型书写工具也具有所谓的双击机制和安全机制。根据双击机构，咔嗒咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔咔根据安全机构，当接合凸缘和接合肋彼此接合时，保持书写元件的书写部分的突出状态，并且当接合凸起被提起时，书写元件缩回。在缸筒的内表面上没有形成凸轮表面。在内筒中，凸轮形成在插入并固定在筒体中的筒状部的前缘上。

5. 发明授权

US5655847A Ball-point pen 失效
标题翻译：圆珠笔
公开(公告)号：US5655847A
公开(公告)日：1997-08-12
申请号：US334182
申请日：1994-11-03
申请人： Seiichi Kobayashi , Kazuhiko Furukawa
发明人： Seiichi Kobayashi , Kazuhiko Furukawa
IPC分类号： B43K5/18 , B43K7/01 , B43K7/10 , B43K7/00
CPC分类号： B43K7/10 , B43K5/1881 , B43K7/01
摘要： A ball-point pen of the present invention is provided which includes: a ball-point pen refill being accommodated in the barrel cylinder and having: a tip with a tip ball held at the front end thereof; an ink reservoir which stores low-viscosity oily ink and has an ink follower provided in the rear end of the ink; and a joint disposed between the tip and the ink reservoir. The joint further includes: a valve chamber holding a ball valve in its inside and communicating with the rear end of the tip; and a ball valve seat disposed on the rear side of the valve chamber for the ball valve in order to prevent backward flow of ink. With this configuration, it is possible to provide a ball-point pen which, without need of any cap, can create dense writing traces free from blotting and unevenness even when a low viscosity oily ink is used.
摘要翻译：提供本发明的圆珠笔，其包括：圆珠笔笔芯，其容纳在所述圆柱滚筒中，并具有：尖端，其顶端保持在其前端; 存储低粘度油性墨水并具有设置在墨水后端的墨汁随动物的墨水储存器; 以及设置在尖端和墨水容器之间的接头。接头还包括：阀室，其内部保持有球阀，并与尖端的后端连通; 以及球阀座，其设置在球阀的阀室的后侧，以防止墨的反向流动。利用这种结构，即使使用低粘度的油性油墨，也可以提供一种不需要任何盖子的圆珠笔即可产生无印迹和不均匀的致密书写痕迹。

6. 发明授权

US5709493A Ballpoint pen having a backflow preventing mechanism 失效
标题翻译：圆珠笔具有防回流机构
公开(公告)号：US5709493A
公开(公告)日：1998-01-20
申请号：US613896
申请日：1996-03-11
申请人： Seiichi Kobayashi , Kazuhiko Furukawa
发明人： Seiichi Kobayashi , Kazuhiko Furukawa
IPC分类号： B43K5/18 , B43K7/00 , B43K7/10
CPC分类号： B43K5/1881
摘要： A ballpoint pen for use with ink having thixotropic (shear viscosity decreasing properties) and a joint for regulating the flow of the ink to the pen's tip through an entrance in the tip. The joint includes a valve chamber which is disposed in an approximately middle portion of the joint with respect to the axial direction thereof for holding a ball therein with play and has a ball seat in the rear part thereof, a cavity in front of the valve chamber and a conduit communicating with an ink reservoir. In this arrangement, in order to allow the ball to fit on the ball seat to prevent ink from flowing backward when the ballpoint pen is oriented upward and in order to ensure an ink flow when oriented downward, the joint portion is constructed such that an axis of path holding the ball valve with play, defined by the top surfaces of the ribs formed on the peripheral wall of the valve chamber, is made eccentric to the axis of the entrance and a channel is provided by the ribs on one side of the valve chamber space for the ink to flow therethrough.
摘要翻译：一种用于具有触变性（剪切粘度降低性）的油墨的圆珠笔和用于通过尖端的入口调节墨水流到笔尖的接头。该接头包括：阀室，其相对于其轴向方向设置在接头的大致中间部分，用于将球保持在其中，并且在其后部具有球座;在阀室前面的空腔以及与墨水容器连通的导管。在这种布置中，为了允许球装配在球座上，以防止当圆珠笔向上取向时油墨向后流动，为了确保当向下定向时油墨流动，关节部分构造成使得轴线由形成在阀室的周壁上的肋的顶表面限定的具有游隙的球阀的路径被制成偏心于入口的轴线，并且通道由阀门的一侧上的肋提供墨水流经的腔室。

7. 发明申请

US20100104347A1 WRITING IMPLEMENT 有权
标题翻译：书面实施
公开(公告)号：US20100104347A1
公开(公告)日：2010-04-29
申请号：US12449055
申请日：2007-11-29
申请人： Kazuhiko Furukawa , Masanobu Kiritake , Kengo Nagaoka
发明人： Kazuhiko Furukawa , Masanobu Kiritake , Kengo Nagaoka
IPC分类号： B43K24/02
CPC分类号： B43K7/12 , B43K24/084
摘要： A writing implement is provided including a knock mechanism, in which, without obstruction of normal operation, impact can be cushioned by a damper space that is sealed off from the outside. The writing implement (10) including the knock mechanism capable of advancing a writing tip (11) by push-out operation, includes: a holding section (12) for holding the writing tip (11); a shaft tube (20) for containing the holding section (12); a knock section (30) for covering a rear end portion of the shaft tube (20); a push-out section (13) for pressing the holding section (12) toward a front end in operative association with push-out operation of the knock section (30); and the damper space (40) provided between the knock section (30) and the shaft tube (20), being sealed off from the outside, and changing its volume by push-out operation of the knock section (30).
摘要翻译：提供了一种书写工具，其包括敲击机构，其中，在不妨碍正常操作的情况下，可以通过与外部密封的阻尼空间来缓冲冲击。包括能够通过推出操作使笔尖（11）前进的敲击机构的书写工具（10）包括：用于保持书写笔尖（11）的保持部（12）; 用于容纳所述保持部（12）的轴管（20）; 用于覆盖所述轴管（20）的后端部的敲击部（30）; 推压部（13），用于将所述保持部（12）朝向前端按压，与所述敲击部（30）的推出操作相关联。以及设置在所述敲击部（30）与所述轴管（20）之间的所述减震空间（40），从所述外部密封，并且通过所述敲击部（30）的推出操作来改变其体积。

8. 发明申请

US20050079001A1 Gas-pressurization type writing utensil and writing utensil refill 有权
标题翻译：气体加压型书写用具和书写用具补充剂
公开(公告)号：US20050079001A1
公开(公告)日：2005-04-14
申请号：US10502742
申请日：2003-01-30
申请人： Kazuhiko Furukawa , Kiyoshi Fujisawa
发明人： Kazuhiko Furukawa , Kiyoshi Fujisawa
IPC分类号： B43K7/03 , B43K7/08 , A46B5/02
CPC分类号： B43K7/03 , B43K7/08
摘要： A gas-pressurized writing instrument simply constructed so that a compressed gas will not escape to the outside by providing a writing point assembly (10) at the front end (14a) of a tube member (14), storing an ink (12) to be fed to the writing point assembly (10) in the tube member (14), encasing at least part of the tube member (10) by a casing cylinder (18) formed of a material that presents low gas permeability or gas impermeability so as to form a space (16) communicating with the rear opening of tube member (14), sealing a compressed gas inside the space (16) so that the compressed gas will push the ink out to writing point assembly (10) to secure the writing performance, and covering the outer periphery of the casing cylinder (18) with an exterior member having thermal resistance or/and moisture resistance greater than that of the casing cylinder so that the casing cylinder can present low gas permeability or gas impermeability.
摘要翻译：一种气体加压书写工具，简单地构造成使得压缩气体不会通过在管构件（14）的前端（14a）处设置书写点组件（10）而逸出到外部，将墨水（12）存储到被馈送到管构件（14）中的书写点组件（10），通过由具有低气体渗透性或气体不透性的材料形成的套筒（18）包住管构件（10）的至少一部分，从而形成与管构件（14）的后开口连通的空间（16），密封空间（16）内的压缩气体，使得压缩气体将墨水推出到书写点组件（10）以确保书写性能，并且利用具有比套管筒的耐热性或/或耐湿性更大的外部构件覆盖套筒（18）的外周，使得套筒可以呈现低气体渗透性或气体不渗透性。

9. 发明授权

US06681091B2 Development method and image formation apparatus 失效
公开(公告)号：US06681091B2
公开(公告)日：2004-01-20
申请号：US10141973
申请日：2002-05-10
申请人： Kazuhiko Furukawa , Tadashi Iwamatsu , Hiroyuki Hirakawa , Tetsuro Toyoshima
发明人： Kazuhiko Furukawa , Tadashi Iwamatsu , Hiroyuki Hirakawa , Tetsuro Toyoshima
IPC分类号： G03G1506
CPC分类号： G03G15/08 , G03G2215/0648
摘要： The increasing ratio of development density to increase in potential difference between a photoreceptor and a development roller differs between the region where the potential difference is small and the region where the potential difference is large. The increasing ratio of development density at the region where the potential difference is small is smaller than the increasing ratio of development density at the region where the potential difference is large. Development is conducted under the developing characteristics in which the upper limit of the development density at the region where the increasing ratio of development density is small is at least 0.3.

10. 发明授权

US6132124A Ink follower for aqueous ballpoint pen using gel-like material and solid piece 失效
标题翻译：水性圆珠笔的墨水随动器使用凝胶状材料和实心片
公开(公告)号：US6132124A
公开(公告)日：2000-10-17
申请号：US654766
申请日：1996-05-29
申请人： Norio Ogura , Kazuhiko Furukawa , Katsuhiko Shiraishi
发明人： Norio Ogura , Kazuhiko Furukawa , Katsuhiko Shiraishi
IPC分类号： B43K7/02 , B43K7/01 , B43K7/08 , C09K3/00
CPC分类号： B43K7/01 , B43K7/08
摘要： The present invention provides an ink follower for an aqueous ballpoint pen having an ink reservoir for directly preserving an ink, and this ink follower comprises at least a gel-like material having a predominantly viscous response and comprising a less volatile solvent having a viscosity of 5 Pa.multidot.sec or less and a hydrophobic thickening agent, and a solid piece having a specific gravity of 0.80 to 1.10. In addition, the present invention provides a ballpoint pen using this ink follower.The ink follower of the present invention is characterized by using the gel-like material having a high flowability and the solid piece for dispersing and absorbing impact. This ink follower has a strong drop impact resistance, in contrast to a conventional gel-like ink control plug. The aqueous ballpoint pen using this ink follower does not lose its function, even when it is dropped from a shelf at a height of 1.5 m.
摘要翻译：本发明提供了一种用于水性圆珠笔的油墨随动体，其具有用于直接保存油墨的油墨储存器，并且该油墨随动体至少包含具有主要粘性响应的凝胶状材料，并且包含粘度为5的较不挥发性溶剂 Paxsec以下，疏水性增稠剂，比重为0.80〜1.10的固体片。此外，本发明提供一种使用该墨水随动体的圆珠笔。本发明的墨汁随动体的特征在于使用具有高流动性的凝胶状材料和固体片用于分散和吸收冲击。与常规的凝胶状墨水控制塞相比，该墨水随动体具有强的耐滴落冲击性。使用该墨水随动体的水性圆珠笔即使在从1.5m高度的架子上落下时也不失去功能。

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