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    • 54. 发明授权
    • Golf club head
    • 高尔夫球杆头
    • US07946931B2
    • 2011-05-24
    • US12007009
    • 2008-01-04
    • Hitoshi Oyama
    • Hitoshi Oyama
    • A63B53/04
    • A63B53/0466A63B2053/0408A63B2053/0412A63B2053/0416A63B2053/0458A63B2209/00
    • In a golf club head, a horizontal direction oriented from the toe side toward the heel side is defined as an X direction, while a vertical upward direction is defined as a Y direction; and the coordinate of the center of the hit face is defined as (0, 0); the coordinate of the sweet spot is defined as (x1, y1); and the coordinate of the maximum resilience point on the hit face is defined as (x2, y2). In this golf club head, x1 is +3 mm or greater and +8 mm or less, and x2 is −5 mm or greater and +2 mm or less. Preferably, the shortest distance D1 between the axis line of the shaft hole and the center of gravity G of the head is 33 mm or greater and 44 mm or less. Preferably, when the face member is divided into a toe portion and a heel portion by a plane that passes the center of the hit face along the Y direction, the area mean thickness Tt of the toe portion is smaller than the area mean thickness Th of the heel portion.
    • 在高尔夫球杆头中,从脚趾侧朝向脚后侧的水平方向被定义为X方向,而垂直向上方向被定义为Y方向; 并且命中面的中心坐标定义为(0,0); 甜点的坐标定义为(x1,y1); 并且命中面上最大弹性点的坐标定义为(x2,y2)。 在该高尔夫球杆头中,x1为+ 3mm以上且+8mm以下,x2为-5mm以上且+2mm以下。 优选地,轴孔的轴线与头部的重心G之间的最短距离D1为33mm以上且44mm以下。 优选地,当面部构件通过沿着Y方向通过击打面的中心的平面被分割成脚趾部分和脚后跟部分时,脚趾部分的面积平均厚度Tt小于 脚跟部分。
    • 55. 发明授权
    • Golf club head
    • 高尔夫球杆头
    • US07691008B2
    • 2010-04-06
    • US11699489
    • 2007-01-30
    • Hitoshi Oyama
    • Hitoshi Oyama
    • A63B53/04
    • A63B53/0466A63B60/02A63B2053/0408A63B2053/0412A63B2053/0416A63B2053/042A63B2053/0433A63B2053/0437A63B2053/0491A63B2209/00A63B2209/023
    • A golf club head has a hollow shell structure comprising: a main frame provided with three independent openings which are a front opening, a top opening and a bottom opening; a face plate covering the front opening; a crown plate covering the top opening; and a sole plate covering the bottom opening. The specific gravity Gc of the crown plate, the specific gravity Gf of the face plate and the specific gravity Gs of the sole plate are each smaller than the specific gravity Gm of the main frame. Preferably, the specific gravity Gc is smaller than the specific gravity Gf and smaller than the specific gravity Gs, and the main frame is made of a metal material. Therefore, the freedom of designing the center of gravity the club head can be increased.
    • 高尔夫球杆头具有中空的外壳结构,包括:主框架,设有三个独立的开口,它们是前开口,顶部开口和底部开口; 覆盖前开口的面板; 覆盖顶部开口的冠状板; 以及覆盖底部开口的底板。 冠板的比重Gc,面板的比重Gf和底板的比重Gs均小于主框架的比重Gm。 优选地,比重Gc小于比重Gf并且小于比重Gs,并且主框架由金属材料制成。 因此,可以增加设计球杆头重心的自由度。
    • 59. 发明授权
    • Golf club shaft
    • 高尔夫球杆杆
    • US06863623B2
    • 2005-03-08
    • US10307325
    • 2002-12-02
    • Hitoshi Oyama
    • Hitoshi Oyama
    • A63B53/10B29C70/16B29L31/52A63B53/12
    • A63B53/10A63B60/06A63B60/08A63B60/10A63B2209/02
    • A golf club shaft formed by winding prepregs of an angular layer and those of a straight layer around a mandrel (10) having a steeply tapered part (10B) formed at a tip side thereof and a gently tapered part (10C) formed, at a butt side thereof, continuously with the steeply tapered part (10B). Prepregs (17, 18) of the angular layer are disposed at the tip side of the mandrel (10). Butt-side ends (17a, 18a) of the prepregs (17, 18) of the angular reinforcing layer at the tip side of the mandrel (10) are disposed at the butt side of the mandrel (10) with respect to a boundary position (P2) disposed at a boundary between the steeply tapered part (10B) and the gently tapered part (10C). A distance from the butt-side ends (17a, 18a) of the prepregs (17, 18) of the angular reinforcing layer at the tip side of the mandrel (10) to the boundary position (P2) is not less than 5% nor more than 30% of a whole length of the shaft.
    • 一种高尔夫球杆杆,其通过将倾斜层的预浸料和围绕形成在其尖端侧的具有陡峭锥形部分(10B)的心轴(10)绕成直角层而形成,并且形成在其上形成的轻轻的锥形部分(10C) 对接侧与陡锥形部分(10B)连续。 角层的预浸料(17,18)设置在心轴(10)的末端侧。 在心轴(10)的前端侧的角加固层的预浸料坯(17,18)的对接端部(17a,18a)相对于边界位置设置在心轴(10)的对接侧 (P2)设置在陡峭锥形部分(10B)和轻轻锥形部分(10C)之间的边界处。 与心轴(10)的前端侧的角加固层的预浸料坯(17,18)的对接端(17a,18a)的距离不小于5% 超过轴的整个长度的30%。
    • 60. 发明授权
    • Method and apparatus for controlling fluid pressure
    • 用于控制流体压力的方法和装置
    • US06247765B1
    • 2001-06-19
    • US09153080
    • 1998-09-15
    • Hitoshi Oyama
    • Hitoshi Oyama
    • B60T700
    • B60T8/3665B60T8/4225B60T8/5037B60T8/5093B60T15/028G05D16/2013Y10T137/86622
    • In controlling the fluid pressure applied to a load using a proportional fluid pressure control valve or a flow control valve, responsiveness of control is improved in a pressure region where the consumption of fluid is larger than in other regions. In this method, if there is a pressure region where the consumption of fluid is greater than in other regions, overshoot control is carried out to increase fluid pressure in such a pressure region by adding a predetermined pressure to a target pressure for a predetermined time, or undershoot control is carried out to reduce fluid pressure in such a pressure region by subtracting a predetermined pressure from a target pressure for a predetermined time. It is thus possible to increase and reduce fluid pressure quickly to a target pressure even in a pressure region where the consumption of fluid is large.
    • 在使用比例流体压力控制阀或流量控制阀来控制施加到负载的流体压力时,在流体消耗大于其它区域的压力区域中提高了控制的响应性。 在该方法中,如果存在流体的消耗量大于其他区域的压力区域,则进行超调控制,以通过在预定时间内向目标压力添加预定压力来增加这种压力区域中的流体压力, 或者进行下冲控制,以通过从目标压力减去预定压力达预定时间来减小这种压力区域中的流体压力。 因此,即使在流体消耗量大的压力区域中,也可以将流体压力快速地增加并降低到目标压力。