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    • 51. 发明授权
    • Key switch
    • 钥匙开关
    • US5512722A
    • 1996-04-30
    • US160960
    • 1993-12-02
    • Kumio OzekiFumio WatanabeHaruo YoshidaOsam KamishimaYosuke Sakai
    • Kumio OzekiFumio WatanabeHaruo YoshidaOsam KamishimaYosuke Sakai
    • H01H13/14H01H13/20H01H13/705H01H13/712H01H13/12
    • H01H13/705H01H13/20H01H2215/02H01H2229/064H01H2233/074H01H2235/002H01H2235/026H01H2235/03
    • A membrane switch is actuated by pressure transmitted from a movable key member through two coaxial springs connected end-to-end. A first of the two springs is held by the key member in a partially strained state requiring an initial force to strain it further. The second spring, smaller in diameter and stiffer than the first, has a free end at which force is applied to the membrane switch. As a top of the key member is pressed, the free end of the second spring moves toward, touches, then presses the membrane switch. Force builds rapidly with displacement in the small spring until it reaches the initial force under which the first spring is retained. This initial force is made roughly equal to the force required to actuate the membrane switch. After that point, the force-displacement characteristic is that of the two-spring combination, which is less stiff than the second spring alone. Thus, long key travel is permitted while the actuation force is reached early in the displacement of the key member. In one embodiment, a resilient boot, covering a key stem of the key switch, buckles when the key is pressed to provide a click-like feedback to an operator.
    • 薄膜开关通过从可移动键构件通过端对端连接的两个同轴弹簧传递的压力致动。 两个弹簧中的第一弹簧由部件处于部分应变状态下被保持,需要初始力使其进一步变形。 第二弹簧的直径小于第一弹簧,比第一弹簧更硬,具有向膜开关施加力的自由端。 当按压按键部件的顶部时,第二弹簧的自由端朝向接触,然后按压薄膜开关。 力在小弹簧中随着位移快速建立,直到达到保持第一弹簧的初始力。 该初始力大致等于致动薄膜开关所需的力。 此后,力 - 位移特性是双弹簧组合的力 - 位移特性,其刚度比单独的第二弹簧硬。 因此,在键构件的移动早期达到致动力的同时允许长键行程。 在一个实施例中,覆盖钥匙开关的钥匙杆的弹性护套在按下钥匙时弯曲,以向操作者提供点击状反馈。
    • 52. 发明授权
    • Objective with large aperture ratio
    • 目的是大孔径比
    • US5299065A
    • 1994-03-29
    • US20770
    • 1993-02-22
    • Fumio Watanabe
    • Fumio Watanabe
    • G02B13/16G02B9/62
    • G02B13/16
    • An objective lens comprising, respectively from the object: a first element of a positive lens, at the object end thereof, having a convex surface; a second element of a positive meniscus lens, at the object end thereof, having a convex surface; a third element of a negative lens, at the image end thereof, having a concave surface; a fourth element of a single lens or a cemented lens, at the object end thereof, having a convex surface, wherein the cemented lens includes two or three lenses; a fifth element of a negative lens, at the object end thereof, having a concave surface; and a sixth element of a positive lens, at the object end thereof, having a convex surface. The objective lens satisfies the following three conditional equations, assuming that "f" designates the focal distance of the entire lens system:0.44f
    • 1.一种物镜,其特征在于,具有:凸面;所述物镜分别具有凸面; 正弯月透镜的第二元件在其物体端具有凸面; 负透镜的第三元件在其图像端具有凹面; 单个透镜或胶合透镜的第四个元件在其目标端具有凸面,其中胶合透镜包括两个或三个透镜; 负透镜的第五元件在其目标端具有凹面; 以及正透镜的第六元件,在其目的端具有凸面。 假设“f”表示整个透镜系统的焦距,物镜满足以下三个条件方程:0.44f
    • 57. 发明授权
    • Vacuum measurement device with ion source mounted
    • 带离子源的真空测量装置
    • US08729465B2
    • 2014-05-20
    • US13496005
    • 2010-09-28
    • Fumio Watanabe
    • Fumio Watanabe
    • H01J27/20H01J49/14H01J3/26
    • G01L21/32
    • A vacuum measurement device includes a grid (10) and an electron source (20) provided inside a vacuum vessel, and an ion beam (100) extracted outside the grid is captured by an ion collector (40) and is converted into a current signal. The grid (10) is a grid-shaped cylinder, and an ion outlet (11) is opened and elongated in the longitudinal direction along the side surface of the grid (10). The vacuum measurement device includes a primary ion collector (40) capturing specific ions and a secondary ion collector (50) capturing other ions. The gas molecule density of the ion source is obtained from a total current of the primary and secondary ion collectors, and a ratio of the gas molecule density of the specific ions relative to the gas molecule density is obtained from a ratio of the current of the primary ion collector (40) relative to the total current.
    • 真空测量装置包括设置在真空容器内部的格栅(10)和电子源(20),并且离子束收集器(40)捕获离网格外提取的离子束(100),并将其转换成电流信号 。 格栅(10)是格子状的圆柱体,离子出口(11)沿着网格(10)的侧面在长度方向上打开和拉长。 真空测量装置包括捕获特定离子的一次离子收集器(40)和捕获其它离子的二次离子收集器(50)。 离子源的气体分子密度是从初级和次级离子收集器的总电流获得的,并且特定离子的气体分子密度相对于气体分子密度的比率可从 初级离子收集器(40)相对于总电流。
    • 58. 发明申请
    • Laser energy measuring unit and laser machining apparatus
    • 激光能量测量单元和激光加工设备
    • US20080239300A1
    • 2008-10-02
    • US12071357
    • 2008-02-20
    • Fumio WatanabeKatsurou Bukawa
    • Fumio WatanabeKatsurou Bukawa
    • G01J1/10B23K26/38
    • G01J1/0455B23K26/705G01J1/04G01J1/4257
    • There is provided a laser energy measuring unit whose laser energy measuring range is widened. The laser energy measuring unit has a filter provided within an optical path of laser to attenuate energy of the laser, a calculating section for measuring the energy of the laser passing through the filter and a condenser lens provided on one side of the filter for condensing the laser. The filter has a shading portion for blocking a center part of the laser beam from transmitting through the filter at position coincident with the center of the laser. The center part of the laser where its energy is large is cut by the shading portion and the calculating section measures the part where its energy is not so large. Thereby, it is possible to widen the laser energy measuring range.
    • 提供了激光能量测量范围扩大的激光能量测量单元。 激光能量测量单元具有设置在激光器的光路内的滤光器,用于衰减激光的能量,用于测量穿过滤光器的激光的能量的计算部分和设置在滤光器一侧的聚光透镜,用于冷凝 激光。 滤光器具有用于阻挡激光束的中心部分的遮蔽部分,以在与激光器的中心重合的位置处透过滤光器。 其能量大的激光器的中心部分被遮光部分切割,并且计算部分测量其能量不是很大的部分。 由此,能够扩大激光能量的测量范围。
    • 59. 发明申请
    • Transmission method
    • 传输方式
    • US20080225927A1
    • 2008-09-18
    • US12148084
    • 2008-04-15
    • Noriaki MiyazakiToshinori SuzukiFumio Watanabe
    • Noriaki MiyazakiToshinori SuzukiFumio Watanabe
    • H04B1/707H04L27/10
    • H04J13/12H04J11/00H04J13/004H04L5/0021H04L27/206H04L27/2626
    • In a transmission method of the present invention, when transmitting an information bit from a transmitter to a receiver, an encoder of the transmitter firstly inputs and encodes the information bit, and a modulator then modulates the encoded information bit to create a modulation symbol. A spreader spreads the obtained modulation symbol using a rotation orthogonal code having a rotation angle that is appropriate to a combination of the modulation method and the coding rate, and transmits it to a transmission path. The receiver performs a reverse operation of the transmitter, and decodes the information bit. In QPSK modulation where the coding rate of an error-correction code is ½, when a rotation angle that obtains a same signal point as OFDM is 0°, spreading is performed using a rotation orthogonal code having a rotation angle of between 17° and 45°, or between −17° and −45°, thereby reducing bit error and enabling highly-reliable communication to be achieved.
    • 在本发明的传输方法中,当从发射机向接收机发送信息比特时,发射机的编码器首先对信息比特进行编码,然后调制编码的信息比特以产生调制符号。 扩展器使用具有适于调制方法和编码率的组合的旋转角度的旋转正交码扩展获得的调制符号,并将其发送到传输路径。 接收机执行发射机的反向操作,并对信息位进行解码。 在纠错码的编码率为1/2的QPSK调制中,当获得与OFDM相同的信号点的旋转角为0°时,使用旋转角度为17°〜45°的旋转正交码进行扩频 °或-17°至-45°之间,从而减少位误差并实现高度可靠的通信。
    • 60. 发明申请
    • Zoom lens and projection display device using the zoom lens
    • 变焦镜头和投影显示设备使用变焦镜头
    • US20060056043A1
    • 2006-03-16
    • US11172851
    • 2005-07-05
    • Kimiaki NakazawaFumio Watanabe
    • Kimiaki NakazawaFumio Watanabe
    • G02B15/14
    • G02B13/22G02B15/177
    • A zoom lens for a projection display device includes, in order from the enlarging side, a first lens group having negative refractive power and that is stationary during zooming, second and third lens groups having positive refractive power, a fourth lens group that has refractive power that is much weaker in absolute value than the refractive powers of the other lens groups, and a fifth lens group having positive refractive power and that is stationary during zooming. The second, third, and fourth lens groups move with coordinated movements continuously toward the enlarging side during zooming from the wide-angle end to the telephoto end of the zoom range. The zoom lens satisfies certain conditions related to focal lengths of the zoom lens and lens groups and distances along the optical axis. A projection display device uses the zoom lens.
    • 用于投影显示装置的变焦透镜从放大侧依次包括具有负折光力并且在变焦期间是静止的第一透镜组,具有正屈光力的第二透镜组和第三透镜组,具有屈光力的第四透镜组 其绝对值比其他透镜组的折射力弱得多,并且具有正屈光力并且在变焦期间是静止的第五透镜组。 第二,第三和第四透镜组在从变焦范围的广角端到望远端变焦期间,以协调的运动连续地朝向放大侧移动。 变焦镜头满足与变焦镜头和镜头组的焦距以及沿着光轴的距离有关的某些条件。 投影显示装置使用变焦镜头。