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    • 11. 发明申请
    • Optical communication device and laminated optical communication module
    • 光通信设备和层叠光通信模块
    • US20050180681A1
    • 2005-08-18
    • US11108842
    • 2005-04-19
    • Nobuhiro UmebayshiHideo DaimonTetsuhiko SambeiAkito Sakemoto
    • Nobuhiro UmebayshiHideo DaimonTetsuhiko SambeiAkito Sakemoto
    • G02B6/12G02B6/122G02B6/124G02B6/125G02B6/34G02B6/42G02B6/26
    • G02B6/12002G02B6/122G02B6/124G02B6/125G02B6/29328G02B6/4214
    • It is an object of the invention to supply an optical communication device and an optical communication module that are provided with a substrate, a vertical waveguide that is formed in the substrate and that is for transmitting light in a thickness direction of the substrate, a horizontal waveguide that is formed in the substrate and that is for transmitting light in a planar direction of the substrate, and a light bending portion for optically coupling the vertical waveguide and the horizontal waveguide. The substrate is a laminated body including a first substrate in whose surface a groove is formed and in which a reflective mirror is disposed on at least one end of the groove, and a second substrate layered to the surface of the first substrate in which the groove is formed and in which a through hole located in opposition to the portion of the groove in which the reflective mirror is disposed is formed. The horizontal waveguide includes a cavity formed by the groove and a reflective film that covers the wall surfaces of the cavity, and transmits light through its cavity. The vertical waveguide include a cavity formed by the through hole and a reflective film that covers the wall surfaces of the cavity, and transmits light through its cavity. The light bending portion includes the reflective mirror, and due to reflection at the surface of the reflective mirror, the light transmission direction is changed from the thickness direction to the planar direction of the substrate or from the planar direction to the thickness direction of the substrate.
    • 本发明的目的是提供一种光通信装置和光通信模块,该光通信装置和光通信模块设置有基板,形成在基板中并用于在基板的厚度方向上透射光的垂直波导,水平 形成在基板中并且用于在基板的平面方向上透射光的波导,以及用于光学耦合垂直波导和水平波导的光弯曲部。 基板是层叠体,其具有第一基板,其表面形成有凹槽,并且反射镜设置在凹槽的至少一端,第二基板层叠到第一基板的表面,第二基板的凹槽 并且其中形成有与设置有反射镜的凹槽部分相对的通孔。 水平波导包括由凹槽形成的空腔和覆盖空腔的壁表面的反射膜,并透过其空腔。 垂直波导包括由通孔形成的空腔和覆盖空腔的壁表面的反射膜,并且透过其空腔。 光弯曲部分包括反射镜,并且由于在反射镜的表面处的反射,光传输方向从基板的厚度方向改变到平面方向或从基板的平面方向到厚度方向 。
    • 20. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US6027801A
    • 2000-02-22
    • US54491
    • 1998-04-03
    • Tsuyoshi MaroKazuyoshi AdachiNaoki KitagakiOsamu IshizakiHideo Daimon
    • Tsuyoshi MaroKazuyoshi AdachiNaoki KitagakiOsamu IshizakiHideo Daimon
    • G11B5/73G11B5/66
    • G11B5/7325Y10S428/90Y10T428/26Y10T428/265
    • The present invention provides a magnetic recording medium with distinguished SNR and mechanical characteristics, which comprises an underlayer, a ferromagnetic thin film metallic layer and a protective film layer successively and continuously laminated on a non-magnetic resin substrate, where (A) at least one layer selected from the group consisting of an Si layer, an Si.sub.w N.sub.x C.sub.y O.sub.z layer and an Al.sub.w N.sub.x C.sub.y O.sub.z layer and (B) at least one layer selected from the group consisting of silicides, nitrides, oxides or their mixtures of Ti, Ta, Mo, V, Zr and their alloys are laminated on the non-magnetic resin substrate in the order of (A) and (B) or (i) a layer composed of at least one material selected from the group consisting of Ti, Ta, Mo, V, Zr, Nb and their alloys, (ii) at least one layer selected from the group consisting of an Si layer, an Si.sub.w N.sub.x C.sub.y O.sub.z layer and an Al.sub.w N.sub.x C.sub.y O.sub.z layer (where w+x+y+z=100 at. %, w.gtoreq.30 at. %, 0 .ltoreq.z.ltoreq.50 at. % and x+y.gtoreq.20 at. %), and (iii) a layer composed of at least one material selected from the group consisting of Ti, Ta, Mo, V, Zr and their alloys are laminated on the non-magnetic resin substrate in the order of (i), (ii) and (iii), between the non-magnetic resin substrate and the underlayer.
    • 本发明提供了具有卓越的SNR和机械特性的磁记录介质,其包括在非磁性树脂基板上连续层压的底层,铁磁薄膜金属层和保护膜层,其中(A)至少一个 选自Si层,SiwNxCyOz层和AlwNxCyOz层的层,以及(B)选自由Ti,Ta,Mo,V,Zr的硅化物,氮化物,氧化物或它们的混合物组成的组中的至少一个层 并且以(A)和(B)的顺序将它们的合金层叠在非磁性树脂基板上,或者(i)由选自Ti,Ta,Mo,V,Zr中的至少一种材料构成的层 ,Nb及其合金,(ii)至少一层选自Si层,SiwNxCyOz层和AlwNxCyOz层(其中w + x + y + z = 100原子%,w> / = 30 在%,0≤z≤50at。%和x + y> / = 20 at。%),和(iii)至少由 在非磁性树脂基板上以(i),(ii)和(iii)的顺序将非磁性材料选自Ti,Ta,Mo,V,Zr及其合金中的一种材料, 树脂基材和底层。