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1. 发明授权

US6035980A Magnetic spring having damping characteristics and vibration mechanism having same 失效
标题翻译：磁性弹簧具有阻尼特性和振动机构
公开(公告)号：US6035980A
公开(公告)日：2000-03-14
申请号：US973929
申请日：1997-12-08
申请人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Seiji Kawasaki , Hiroki Honda , Yumi Ogura
发明人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Seiji Kawasaki , Hiroki Honda , Yumi Ogura
IPC分类号： F16F6/00 , F16F15/03 , B60N2/50
CPC分类号： F16F6/005 , F16F15/03
摘要： A magnetic spring has at least two permanent magnets (2 and 4) spaced from each other in a kinetic mechanism. At the time of input and at the time of output, the geometric dimensions between the two permanent magnets are changed by the kinetic mechanism or an external force. The change in geometric dimensions is converted into a repulsive force in the kinetic mechanism, thereby (1) making the repulsive force from a balanced position of the two permanent magnets greater at the time of output than at the time of input, or (2) deriving a damping term of the magnetic spring to provide nonlinear damping and spring characteristics.
摘要翻译： PCT No.PCT / JP97 / 01196 Sec。 371 1997年12月8日第 102（e）日期1997年12月8日PCT提交1997年4月8日PCT公布。公开号WO97 / 38242 日期1997年10月16日磁性弹簧在动力学机构中具有彼此间隔开的至少两个永磁体（2和4）。在输入时和输出时，通过动力学机构或外力来改变两个永磁体之间的几何尺寸。几何尺寸的变化在动力学机理中被转化为排斥力，从而（1）使输出时的两个永磁体的平衡位置的排斥力比输入时更大，或者（2）导出磁性弹簧的阻尼项以提供非线性阻尼和弹簧特性。

2. 发明授权

US06232689B1 Energy extracting mechanism having a magnetic spring 失效
标题翻译：能量提取机构具有磁性弹簧
公开(公告)号：US06232689B1
公开(公告)日：2001-05-15
申请号：US09050088
申请日：1998-03-30
申请人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Seiji Kawasaki
发明人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Seiji Kawasaki
IPC分类号： H02K706
CPC分类号： F16F15/03 , F16F6/005
摘要： An energy converting mechanism includes at least two permanent magnets spaced from each other with the same magnetic poles opposed to each other, and a magnetic spring formed by the at least two permanent magnets. The magnetic spring provides negative damping characteristics or changes static magnetic energy by changing an opposing area of the at least two permanent magnets so that an output is extracted from one of the at least two permanent magnets by applying an input to the other.
摘要翻译：能量转换机构包括至少两个彼此间隔相同磁极的永磁体和由至少两个永久磁铁形成的磁弹簧。磁性弹簧通过改变至少两个永磁体的相对面积来提供负阻尼特性或改变静态磁能，使得通过向另一个施加输入而从至少两个永磁体中的一个提取输出。

3. 发明授权

US07219923B2 Device for determining kind of load on seat, seat, and bio-signal detector 有权
标题翻译：用于确定座椅，座椅和生物信号探测器负载种类的装置
公开(公告)号：US07219923B2
公开(公告)日：2007-05-22
申请号：US10849325
申请日：2004-05-19
申请人： Etsunori Fujita , Hiroshi Nakahira , Yoshimi Enoki , Yumi Ogura
发明人： Etsunori Fujita , Hiroshi Nakahira , Yoshimi Enoki , Yumi Ogura
IPC分类号： B60R21/016
CPC分类号： B60N2/002
摘要： There is provided a bio-signal detector to detect a heart rate and a respiratory rate so that the determination of a kind of a seat load placed on a seat can be made. That is, whether the seat load is a human or an object is determined, and if it is the human, then the physique size is determined to be small or large (the level of the physique size is determined). Accordingly, as compared with the means based only on a weight of the seat load, the determination result is highly reliable. Besides, with the use of the bio-signal detector, the discrimination between the human and the object is ensured. Moreover, a structure additionally including a weight sensor allows the determination of the physique size in more accurate manner.
摘要翻译：提供了用于检测心率和呼吸频率的生物信号检测器，从而可以确定放置在座椅上的座椅负载的种类。也就是说，是否确定座椅负载是人体还是物体，并且如果是人体，则将身体尺寸确定为小或大（确定体质大小的水平）。因此，与仅基于座椅负载的重量的装置相比，确定结果是高度可靠的。此外，通过使用生物信号检测器，确保了人与物之间的辨别。此外，还包括重量传感器的结构允许以更准确的方式确定体格尺寸。

4. 发明授权

US06366190B1 Magneto-spring structure 有权
标题翻译：磁弹结构
公开(公告)号：US06366190B1
公开(公告)日：2002-04-02
申请号：US09739964
申请日：2000-12-20
申请人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Eiji Sugimoto , Shigeki Wagata , Hideyuki Yamane , Shigeyuki Kojima , Kazuyoshi Chizuka
发明人： Etsunori Fujita , Yoshimi Enoki , Hiroshi Nakahira , Eiji Sugimoto , Shigeki Wagata , Hideyuki Yamane , Shigeyuki Kojima , Kazuyoshi Chizuka
IPC分类号： H02K709
CPC分类号： F16F6/005 , F16F2230/0052
摘要： A magneto-spring structure includes a lower frame and an upper frame vertically movably mounted on the lower frame via a link mechanism. The upper and lower frames have respective permanent magnets secured thereto, with like magnetic pole opposed to each other. The link mechanism includes a plurality of links and a connecting member for rotatably connecting them via a bearing. The links are made of non-magnetic material, while the bearing is made of ferromagnetic material.
摘要翻译：磁弹簧结构包括下框架和通过连杆机构垂直地可移动地安装在下框架上的上框架。上框架和下框架具有固定到其上的相应的永磁体，具有相似的磁极。连杆机构包括多个连杆和用于通过轴承可旋转地连接它们的连接件。链节由非磁性材料制成，而轴承由铁磁材料制成。

5. 发明授权

US06652783B2 Magnet unit and method of production thereof 有权
公开(公告)号：US06652783B2
公开(公告)日：2003-11-25
申请号：US10016292
申请日：2001-10-30
申请人： Etsunori Fujita , Yoshimi Enoki , Hiroki Oshimo
发明人： Etsunori Fujita , Yoshimi Enoki , Hiroki Oshimo
IPC分类号： E04B116
CPC分类号： F16F15/03 , B60G2202/16 , B60G2206/40 , F16F6/00
摘要： The object of the present invention is to improve the production efficiency by making its bonding process unnecessary to simplify the production process. The method of production comprises the step of integrally incorporating a magnetic material when the stationary holders 21 and 22 of the stationary member and the movable holder 31 of the movable member 30 are molded with a non-magnetic material such as a plastic material and the like. Therefore, a magnet unit in which the stationary magnets 23 and 24 or the movable magnet 32 is integrally incorporated into the stationary holders 21 and 22 or the movable holder 31 can be provided only by giving magnetization treatment on the magnetic material without using a bonding process.

6. 发明授权

US06588554B2 Vibration damping apparatus using magnetic circuit 失效
公开(公告)号：US06588554B2
公开(公告)日：2003-07-08
申请号：US10006906
申请日：2001-11-08
申请人： Etsunori Fujita , Yoshimi Enoki , Hiroki Oshimo
发明人： Etsunori Fujita , Yoshimi Enoki , Hiroki Oshimo
IPC分类号： F16F1503
CPC分类号： F16F6/005 , F16F2222/12 , F16F2228/063
摘要： The object of the present invention is to provide a vibration damping apparatus having 6 degrees of freedom using a magnetic circuit. Vibration transfer can be isolated by a vibration damping mechanism to set the spring constant utilizing a relative displacement of a movable magnet 37 to a stationary magnet 27 in an axial direction, and an elastic force of a metal spring 50 substantially to be zero. The displacement is quickly restored to an original position by a rubber 24a and the metal spring 50 composing a device to restore the displacement due to vibration not only in an axial direction (Z axis direction) but also in a horizontal direction (X or Y axis direction), in a rotational direction around each axis, or in a twisting direction which is an overlapping direction of these directions and is damped as a vibration in an axial direction. Accordingly, a vibration having 6 degrees of freedom can be controlled with a simple structure.

7. 发明申请

US20140001814A1 CUSHION MEMBER AND SEAT STRUCTURE 有权
标题翻译：建筑会员和座椅结构
公开(公告)号：US20140001814A1
公开(公告)日：2014-01-02
申请号：US14005276
申请日：2012-03-23
申请人： Etsunori Fujita , Yumi Ogura , Seiji Kawasaki , Yuki Arita
发明人： Etsunori Fujita , Yumi Ogura , Seiji Kawasaki , Yuki Arita
IPC分类号： B60N2/64
CPC分类号： B60N2/64 , A47C7/18 , A47C7/287 , A47C27/22 , A47C31/006
摘要： A cushion member includes an intermediate layer, and an upper layer and lower layer stacked and fixed thereto. The cushion member is fixed to a frame by bending an end part of the cushion member so that the upper layer comes to the front side and the lower layer comes to the back side. The intermediate layer is subjected to shear force and the upper layer and the lower layer are subjected to compressive and tensile stress. With the spring characteristic of the intermediate layer, residual stress of the tension and compression is applied to the upper and lower layers from the intermediate layer. Thus, the cushion member can have a restoring property, generation of creases during no load application can be reduced, permanent setting is made less likely, and a compression characteristic in the thickness direction is increased.
摘要翻译：缓冲构件包括中间层，以及堆叠并固定在其上的上层和下层。缓冲构件通过弯曲缓冲构件的端部而固定到框架，使得上层进入前侧，下层到达后侧。中间层承受剪切力，上层和下层受到压缩和拉伸应力。随着中间层的弹簧特性，拉伸和压缩的残余应力从中间层施加到上层和下层。因此，缓冲构件可以具有恢复特性，可以减少无负荷施加期间的折痕的产生，使永久性设定变得不太可能，并且厚度方向上的压缩特性增加。

8. 发明授权

US07631933B2 Seat 有权
标题翻译：座位
公开(公告)号：US07631933B2
公开(公告)日：2009-12-15
申请号：US11660670
申请日：2005-08-25
申请人： Etsunori Fujita , Seiji Kawasaki , Yasuhide Takata
发明人： Etsunori Fujita , Seiji Kawasaki , Yasuhide Takata
IPC分类号： B60R21/00 , B60N2/427
CPC分类号： B60N2/42745 , B60N2/4228 , B60N2/888 , B60N2/986
摘要： A seat includes a back part frame which is elastically deformable in a direction such that right and left side part frames are brought closer to, or moved away from, each other, and a tensile structural element which is stretched between the right and left side part frames so as to configure a backrest. Further, a headrest is provided at an upper part of the back part frame. In addition, the tensile structural element is stretched over the back part frame so as to configure a backrest, and is configured such that the back part frame is deformed so that the headrest is moved forward due to a tensile force resulting from a load imparted on the backrest.
摘要翻译：座椅包括后部框架，该后部框架可以使得左右侧部框架彼此靠近或远离的方向弹性变形，并且在右侧部分和左侧部分之间被拉伸的拉伸结构元件框架以配置靠背。此外，在后部框架的上部设置头枕。此外，拉伸结构元件在后部框架上被拉伸以构成靠背，并且被构造成使得后部框架变形，使得头枕由于施加的载荷引起的拉力而向前移动靠背

9. 发明授权

US07600821B2 Seat 有权
标题翻译：座位
公开(公告)号：US07600821B2
公开(公告)日：2009-10-13
申请号：US10187990
申请日：2002-07-03
申请人： Eiichi Yasuda , Shunichi Doi , Kazukata Takei , Etsunori Fujita , Yumi Ogura , Seiji Kawasaki
发明人： Eiichi Yasuda , Shunichi Doi , Kazukata Takei , Etsunori Fujita , Yumi Ogura , Seiji Kawasaki
IPC分类号： A47C7/02
CPC分类号： A47C1/02 , A47C7/40 , B60N2/5891 , B60N2/64 , B60N2/68 , B60N2/70 , B60N2/7094
摘要： A seat provides a band-like support for the body sides of a user so as to reduce the supporting pressure on the user's lumbar and to hold the user's upper body stably. In this seat, the center of a load to be received in regions symmetrically divided to a vertical central line of the seat are positioned outside of a back region defined by left and right angulus inferior scapulae and by the upper ends of iliac bones. Moreover, the load ratios in the individual regions are not more than 25% in the region corresponding to a region extended downward from the back region.
摘要翻译：座椅为用户的身体侧面提供带状支撑，以便减少用户腰部的支撑压力并稳定地保持使用者的上身。在这个座位上，要被接纳在对称地分为座椅的垂直中心线的区域中的负载的中心位于由左，右肩下肩肩和髂骨的上端限定的后区域的外侧。此外，在与从后部区域向下延伸的区域对应的区域中，各个区域中的负载比不大于25％。

10. 发明申请

US20070013217A1 Seat 有权
标题翻译：座位
公开(公告)号：US20070013217A1
公开(公告)日：2007-01-18
申请号：US11485729
申请日：2006-07-13
申请人： Etsunori Fujita , Kazuyoshi Chizuka , Seiji Kawasaki , Yumi Ogura , Yasuhide Takata
发明人： Etsunori Fujita , Kazuyoshi Chizuka , Seiji Kawasaki , Yumi Ogura , Yasuhide Takata
IPC分类号： A47C7/46
CPC分类号： B60N2/42709 , B60N2/42736 , B60N2/42754 , B60N2/72
摘要： A seat cushion of a vehicle seat has a base seat whose front end is anchored to a front frame of a frame for a sitting portion, and whose rear end is connected to a rear frame of the frame for a sitting portion via helical tension springs. A supporter, supported via helical tension springs at a pair of left and right side frames of the frame for a sitting portion, is disposed at a lower side of the base seat so as to support a femoral region of a seated person. The supporter and the helical tension springs structure an auxiliary vibration system whose mass element is a femoral region of a seated person. The auxiliary vibration system is made to function as a dynamic vibration absorber with respect to up-down vibrations of a main vibration system whose mass element is an upper body of a seated person.
摘要翻译：车座的座垫具有基座，其前端被锚定到用于坐姿的框架的前框架，并且其后端通过螺旋拉伸弹簧连接到用于座位的框架的后框架。在座椅的框架的一对左右侧框架处通过螺旋拉伸弹簧支撑的支撑件设置在基座的下侧，以支撑就座者的股骨区域。支撑器和螺旋拉伸弹簧构成辅助振动系统，其质量元素是坐在人的股骨区域。辅助振动系统相对于主体振动系统的上下振动起到动力吸振器的作用，其主体振动系统的质量元件是就座人的上身。

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