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    • 77. 发明申请
    • Surface-spintronics device
    • 表面自旋电子器件
    • US20060186433A1
    • 2006-08-24
    • US10561616
    • 2004-06-23
    • Hideaki KasaiHiroshi NakanishiTomoya Kishi
    • Hideaki KasaiHiroshi NakanishiTomoya Kishi
    • H01L29/74
    • H01L43/08B82Y25/00G11C11/16H01F10/007
    • A surface-spintronic device operating on a novel principles of operations may be implemented as a spin conducting, a spin switching or a spin memory device. It includes a magnetic atom thin film (13) layered on a surface of a solid crystal (12) and a drain and a source electrodes (14) and (15) disposed at two locations on the magnetic atom thin film, respectively, whereby a spin splitting surface electronic state band formed in a system comprising said solid crystal (12) surface and said magnetic atom thin film (13) is utilized to obtain a spin polarized current flow. With electrons spin-polarized in a particular direction injected from the source electrode (15), controlling the direction of magnetization of the magnetic atom thin film (13) allows switching on and off the conduction of such injected electrons therethrough. Also, with the use of the magnetization holding function of the magnetic atom thin film (13), it is possible to realize a spin memory device that can operate to write information on controlling the direction of magnetization of the magnetic atom thin film (13) and that can operate to read information on detecting the state of conduction or nonconduction between the source and drain electrodes (15, 14).
    • 以新颖的操作原理操作的表面自旋电子器件可以被实现为自旋导通,自旋切换或自旋存储器件。 它包括分别在固体晶体(12)的表面上分层的磁性原子薄膜(13)和设置在磁性原子薄膜上的两个位置处的漏极和源极(14)和(15),由此 利用在包括所述固体晶体(12)表面和所述磁性原子薄膜(13)的系统中形成的旋转分裂表面电子状态带来获得自旋极化电流。 利用从源电极(15)注入的特定方向自旋极化的电子,控制磁性原子薄膜(13)的磁化方向允许这种注入的电子的导通和导通。 此外,通过使用磁性原子薄膜(13)的磁化保持功能,可以实现能够操作以写入关于控制磁性原子薄膜(13)的磁化方向的信息的自旋存储装置, 并且可以操作以读取关于检测源极和漏极(15,14)之间的导通或非导通状态的信息。
    • 80. 发明授权
    • Image pickup optical system
    • 摄像光学系统
    • US06278554B1
    • 2001-08-21
    • US09427742
    • 1999-10-27
    • Michiharu ArataniHiroshi Nakanishi
    • Michiharu ArataniHiroshi Nakanishi
    • G02B2714
    • G02B17/086G02B3/0087G02B17/0848
    • An image pickup optical system has an optical element of a transparent, optical material including an entrance surface, at least one reflective surface, and an exit surface. The optical element has an optical power, the image pickup optical system has an image pickup element including a plurality of pixels. On the image pickup element an image is formed by light from an object through the optical element. The optical material is a material having an index change amount &Dgr;n from an absolute dry condition at the temperature of 50° C. to saturation under a circumstance of the temperature being 50° C. and the humidity being 90%, the index change amount &Dgr;n satisfying the following condition: &Dgr;n≦F&dgr;r02/(2f2L) where F is the F-number of the image pickup optical system, f is the focal length of the image pickup optical system, &dgr; is the pitch of the pixels of the image pickup element, L is the optical path length of the optical element along the reference axis, and r0 is half of the length of the optical element along a direction perpendicular to a plane including the reference axis.
    • 摄像光学系统具有包括入射面,至少一个反射面和出射面的透明光学材料的光学元件。 光学元件具有光学功率,图像拾取光学系统具有包括多个像素的图像拾取元件。 在图像拾取元件上,通过光学元件从物体的光形成图像。 光学材料是在温度为50℃,温度为50℃,湿度为90%的情况下,从绝对干燥条件为50℃至饱和的折射率变化量DELTAn的材料,折射率变化量DELTAn 满足以下条件:DELTAn <= Fdeltar02 /(2f2L)其中F是摄像光学系统的F数,f是摄像光学系统的焦距,delta是图像拾取器的像素的间距 元素L是沿着基准轴的光学元件的光程长度,并且r0是沿着垂直于包括基准轴的平面的方向的光学元件的长度的一半。