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    Porous ceramics body for in vivo or in vitro use
    7.
    发明授权
    Porous ceramics body for in vivo or in vitro use 失效
    用于体内或体外使用的多孔陶瓷体

    公开(公告)号：US06713420B2

    公开(公告)日：2004-03-30

    申请号：US09973079

    申请日：2001-10-10

    Applicant: Kohichi Imura ,  Takashi Umezawa ,  Akihiko Ichikawa ,  Katsuhiro Chaki

    Inventor： Kohichi Imura ,  Takashi Umezawa ,  Akihiko Ichikawa ,  Katsuhiro Chaki

    IPC: C07B2535

    CPC classification number: C04B35/447 ,  A61F2/28 ,  A61F2002/30011 ,  A61F2002/30968 ,  A61F2250/0023 ,  A61F2310/00293 ,  A61L24/0036 ,  A61L24/0042 ,  A61L24/0063 ,  C04B38/0064 ,  C04B38/062 ,  C04B2111/00836 ,  C04B38/0054 ,  C04B38/0058 ,  C04B38/0074

    Abstract: A porous ceramics body for in vivo or in vitro 1use in which a number of pores are closely distributed in three dimensional directions, adjoining pores thereof being partitioned by wall portions with respective communication ports to bring said adjoining pores into communication with each other such that a series of connected spherical pores are formed therewithin, said porous ceramics body being made of a sintered calcium phosphate body, characterized in that, within said sintered calcium phosphate body, pores each having a diameter of 5 microns (&mgr;m) or more account for 80% or more of all the pores in terms of volume whereas pores having a diameter of less than 5 microns (&mgr;m) account for less than 20% of all the pores in terms of volume as subjected to a mercury porosimeter measurement.

    Abstract translation: 一种用于体内或体外的多孔陶瓷体，其中多个孔在三维方向上紧密分布，其邻接的孔被壁部与相应的连通口隔开，以使所述相邻的孔彼此连通，使得 所述多孔陶瓷体由磷酸钙烧结体构成，其特征在于，在所述烧结磷酸钙体内，直径为5微米（以上）以上的孔为80％以上， 或更多的孔，而直径小于5微米（母体）的孔占经过水银孔隙率计测量的体积方面的所有孔的小于20％。

    Bi-directional optical communications subscriber transmission system using a single wavelength
    8.
    发明授权
    Bi-directional optical communications subscriber transmission system using a single wavelength 失效
    双向光通信用户传输系统采用单波长

    公开(公告)号：US6031645A

    公开(公告)日：2000-02-29

    申请号：US684814

    申请日：1996-07-22

    Applicant: Akihiko Ichikawa

    Inventor： Akihiko Ichikawa

    IPC: H04B10/00 ,  H04B10/2507 ,  H04B10/272 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04J14/02 ,  H04B10/24

    CPC classification number: H04B10/2503 ,  H04B10/272 ,  H04J14/0298

    Abstract: With regard to an optical communications system, in a system using a single optical fiber cable between subscribers and an exchange and in which bi-directional transmission is performed using the same 1.3-.mu.m wavelength, the exchange-to-subscriber signal is a high-speed, wideband signal which is bandwidth limited by means of a lowpass filter, and the subscriber-to-exchange signal is a carrier having a frequency higher than the upper limit of the exchange-to-subscriber signal and which is modulated with a low-speed, narrowband signal.

    Abstract translation: 关于光通信系统，在使用用户和交换机之间的单个光纤线路的系统中，并且使用相同的1.3μm波长执行双向传输的交换机到用户信号是高的 通过低通滤波器限制带宽的宽带信号，并且用户到交换信号是具有高于交换机到用户信号的上限的频率的载波，并且以低的速率被调制 速度，窄带信号。

    Light signal remote control apparatus and light signal level controlling method
    9.
    发明授权
    Light signal remote control apparatus and light signal level controlling method 失效
    光信号遥控器和光信号电平控制方式

    公开(公告)号：US5706112A

    公开(公告)日：1998-01-06

    申请号：US724447

    申请日：1996-10-01

    Applicant: Takayoshi Morita ,  Akihiko Ichikawa

    Inventor： Takayoshi Morita ,  Akihiko Ichikawa

    IPC: H04B10/00 ,  H04B10/03 ,  H04B10/07 ,  H04B10/071 ,  H04B10/077 ,  H04B10/079 ,  H04B10/40 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/60 ,  H04M3/00 ,  H04Q9/00

    CPC classification number: H04B10/564 ,  H04B10/503

    Abstract: A remote light signal control apparatus is disclosed wherein the level of the light output thereof is fixed with a high degree of accuracy and, even when an ALC loop is opened, a laser diode can emit light at a stable level to assure a high degree of reliability of the laser diode. A first control section is provided in one of a light reception section and a light transmission section. The light transmission section includes a second light detection section for detecting a light emitting condition of a light source, a second control section for outputting, in response to light detection information detected by the second light detection section, a light control signal for controlling the state of a light signal from the light source, and a switch section for selectively outputting to the light source one of the light control signal from the first control section and the light control signal from the second control section with which the level of the light signal from the light source is controlled lower than that with the other.

    Abstract translation: 公开了一种远程光信号控制装置，其中其光输出的电平以高精度固定，并且即使当ALC回路打开时，激光二极管可以以稳定的水平发光，以确保高度的 激光二极管的可靠性。 第一控制部分设置在光接收部分和光传输部分之一中。 光传输部分包括用于检测光源的发光状态的第二光检测部分，响应于由第二光检测部分检测的光检测信息而输出用于控制状态的光控制信号的第二控制部分 来自光源的光信号;以及开关部分，用于选择性地向光源输出来自第一控制部分的光控制信号中的一个和来自第二控制部分的光信号的光控制信号， 光源被控制得比另一个低。

    Method or apparatus for recovering micromaterial
    10.
    发明授权
    Method or apparatus for recovering micromaterial 有权
    用于回收微材料的方法或装置

    公开(公告)号：US07824854B2

    公开(公告)日：2010-11-02

    申请号：US10508639

    申请日：2003-01-14

    Applicant: Fumihito Arai ,  Toshio Fukuda ,  Akihiko Ichikawa ,  Tohoru Katsuragi

    Inventor： Fumihito Arai ,  Toshio Fukuda ,  Akihiko Ichikawa ,  Tohoru Katsuragi

    IPC: C12Q1/68 ,  C12M1/00 ,  C12M1/34 ,  C12M3/00

    CPC classification number: B01L3/502761 ,  B01J2219/00495 ,  B01J2219/00527 ,  B01J2219/00644 ,  B01L3/502753 ,  B01L2200/0668 ,  B01L2300/0816 ,  B01L2300/1827 ,  B01L2300/1861 ,  B01L2300/1872 ,  B01L2400/0677 ,  C40B60/14 ,  G01N15/1463 ,  G01N2001/282 ,  G01N2001/284 ,  G01N2001/2886 ,  G01N2015/1497

    Abstract: A substance (for example, methylcellulose) that undergoes a reversible gel to sol phase transition is utilized in a recovery method for specific micromaterials such as DNA molecules, cells, microorganisms and the like, approximately several μm in size, from a mixture containing other micromaterials, and a micromaterial is accurately and conveniently recovered. The present invention is a method of recovering a desired micromaterial in a system comprising a medium that undergoes a reversible phase transition between a sol and a gel, a support material and micromaterials, comprising the steps of converting the medium surrounding the micromaterial to be recovered into a gel locally to immobilize said micromaterial on said support along with the gelled medium, removing the medium and micromaterials not immobilized on said support material and converting the gelled medium to a sol to recover the micromaterial.

    Abstract translation: 使用经历可逆凝胶以溶胶相变的物质（例如甲基纤维素），用于从含有其它微材料的混合物的混合物中回收大分子数μm的特定微材料如DNA分子，细胞，微生物等 ，并精确方便地回收微量材料。 本发明是一种在包括在溶胶和凝胶，载体材料和微材料之间经历可逆相变的介质的系统中回收所需的微材料的方法，包括以下步骤：将要回收的微材料周围的介质转化为 将凝胶局部固定在所述载体上与胶凝介质一起固定，除去未固定在所述载体材料上的介质和微材料，并将凝胶介质转化为溶胶以回收微量材料。

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