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    • 2. 发明授权
    • Magnet apparatus suitable for magnetic resonance imaging
    • 适用于磁共振成像的磁铁设备
    • US5291171A
    • 1994-03-01
    • US991225
    • 1992-12-16
    • Nobutaka KobayashiKen OhashiKoji Miyata
    • Nobutaka KobayashiKen OhashiKoji Miyata
    • A61B5/055G01R33/20G01R33/383H01F5/00H01F7/02H01F3/00
    • H01F7/0278G01R33/383
    • The invention relates to an apparatus for producing a magnetic field in a space between two oppositely arranged permanent magnet discs, which is suitable for use in magnetic resonance imaging (MRI). An object of the invention is to reduce the size and weight of the yoke connecting the two permanent magnet discs without causing magnetic saturation of the yoke in view of the fact that magnetic saturation of the yoke leads to the appearance of leakage flux and consequential lowering of the uniformity of the magnetic field. The object is accomplished by regulating the cross-sectional area of the whole magnetic path in the yoke, A.sub.y, such that the following equation holds: A.sub.y =1/a.times.A.sub.m B.sub.m /B.sub.ys, where A.sub.m is the cross-sectional area of magnetic path in each permanent magnet disc, B.sub.m is the magnetic flux density in each permanent magnet disc at normal temperature, B.sub.ys is the saturation magnetic flux density of the yoke at normal temperature, and a is a coefficient the value of which is not larger than 1 and not smaller than 0.6.
    • 本发明涉及一种用于在两个相对布置的永磁体盘之间的空间中产生磁场的装置,其适用于磁共振成像(MRI)。 发明内容本发明的目的是为了减小连接两个永久磁铁盘片的磁轭的尺寸和重量,而不会引起磁轭的磁饱和,因为磁轭的磁饱和导致漏磁通的出现,并导致降低 磁场的均匀性。 该目的是通过调节磁轭Ay中的整个磁路的横截面积来实现的,使得以下等式成立:Ay = 1 / a * AmBm / Bys,其中Am是磁路的横截面积 在每个永久磁铁盘中,Bm是常温下每个永久磁铁盘中的磁通密度,Bys是磁轭在常温下的饱和磁通密度,a是其值不大于1的系数, 不小于0.6。
    • 6. 发明授权
    • Water-activating particle casing with an annular float
    • 具有环形浮子的水活化颗粒套管
    • US5211689A
    • 1993-05-18
    • US801799
    • 1991-12-02
    • Nobutaka Kobayashi
    • Nobutaka Kobayashi
    • D06F35/00D06F39/00D06F39/02A24F25/00F17C13/00
    • D06F39/024D06F39/007
    • The invention is a water-activating particle casing with an annular float. The casing has openings to allow washing water to flow in and out from the casing and contact the water-activating particles contained therein, thereby increasing the cleaning capability of the washing water circulating in a washing vessel. The annular float is made of closed cell rubber, and surrounds a portion of the body of the casing, thereby permitting the casing to float and ride on the swirling circulation of washing water in the washing vessel. Thus, the water-activating particles can be effectively exposed to circulating washing water to permit their surface activities to be used to their limit in washing.
    • 本发明是具有环形浮子的水活化颗粒壳体。 壳体具有允许洗涤水从壳体流入和流出并且与其中包含的水激活颗粒接触的开口,从而增加在洗涤容器中循环的洗涤水的清洁能力。 环形浮子由闭孔橡胶制成,并且围绕壳体的一部分,从而允许壳体漂浮并骑在洗涤容器中的洗涤水的旋转循环。 因此,水活化颗粒可以有效地暴露于循环的洗涤水中,以使它们的表面活性被用于其洗涤极限。
    • 7. 发明授权
    • Laser beam machining device
    • 激光束加工装置
    • US06984802B2
    • 2006-01-10
    • US10495781
    • 2002-11-13
    • Tadashi KuroiwaKenichi IjimaNobutaka Kobayashi
    • Tadashi KuroiwaKenichi IjimaNobutaka Kobayashi
    • B23K26/06
    • B23K26/0608B23K26/067B23K26/382B23K2101/42B23K2103/50
    • A laser material processing apparatus for processing a workpiece (22) in such a way as to separate one laser light (26) into two laser beams (26a, 26b) via first polarizer (25), one laser beam being passed via the mirrors (24), the other laser beam being scanned biaxially by a first galvano scanner (29), and conduct two laser beams (26a, 26b) to a second polarizer (27) for scanning via a second galvano scanner (30), wherein an optical path is constituted such that the laser beam (26b) transmitted through the first polarizer (25) is reflected by the second polarizer (27), and the laser beam (26a) reflected by the first polarizer (25) is transmitted through the second polarizer (27).
    • 一种激光材料处理装置,用于通过第一偏振器(25)将一个激光束(26a)分离为两个激光束(26a,26b),一个激光束经由 反射镜(24),另一激光束由第一电流扫描器(29)双轴扫描,并将两个激光束(26a,26b)传导到第二偏振器(27),用于经由第二电流扫描器(30)扫描, 其特征在于,构成为使通过所述第一偏振片(25)透射的激光束(26b)被所述第二偏振片(27)反射的光路,由所述第一偏振片(25)反射的所述激光束(26a) 透射通过第二偏振器(27)。
    • 9. 发明授权
    • Position indication device, and information storage medium
    • 位置指示装置和信息存储介质
    • US06926610B2
    • 2005-08-09
    • US10069172
    • 2001-06-27
    • Masatoshi KobayashiNobutaka KobayashiNobuaki Arai
    • Masatoshi KobayashiNobutaka KobayashiNobuaki Arai
    • G06F3/033G06F3/037G06F3/038G06F3/041G06F3/042A63B67/00
    • A63F13/219A63F13/04A63F13/213A63F13/245A63F13/837A63F2300/1043A63F2300/1062A63F2300/8076G06F3/03542G06F3/0386
    • The objective is to prevent erroneous operation of an optical sensor while removing restrictions on the degree of freedom of design. In a handgun-shaped controller comprising a lens for focusing light that is incident on a muzzle and an optical sensor 18 for detecting the thus-focused light, a light-proof case 50 is provided to cover the lens and optical sensor in such a manner that external light other that from a muzzle is not incident thereon. The light-proof case covers the entire surface of the optical sensor and the portion of the board on which the optical sensor is mounted. Cut-out portions 54A and 54B for through-holes for signal terminals 19 are provided in a connection portion between parts 50A and 50B that form the light-proof case. A protuberant portion is provided on the connection portion of one part 50A and a fit portion thereof is provided in the connection of another part 50B. A protuberant portion is provided so as to deform when a board 70 is pressed into slits 52A and 52B, sealing the gaps between the slits and the board. The configuration could be such that the entirety of the board is covered by the light-proof case and the optical sensor is attached directly within the light-proof case.
    • 目的是防止光学传感器的错误操作,同时消除对设计自由度的限制。 在包括用于聚焦入射在枪口上的光的透镜和用于检测如此聚焦的光的光学传感器18的手枪形状的控制器中,提供了一种以这种方式覆盖透镜和光学传感器的防光壳体50 枪口外的外部光线不在其上。 防光外壳覆盖光学传感器的整个表面和安装有光学传感器的板的部分。 用于信号端子19的通孔的切口部分54A和54B设置在形成防光外壳的部件50A和50B之间的连接部分中。 在一部分50A的连接部分上设置突起部分,并且其一部分设置在另一部分50B的连接中。突出部分设置成当板70被压入狭缝52A和 52B,密封狭缝和板之间的间隙。 该配置可以是整个板被遮光罩覆盖,光学传感器直接安装在防光外壳内。