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    • 103. 发明授权
    • Optical head including an active polymer film for switching voltage during recording and reproducing processes
    • 光头包括用于在记录和再现过程中切换电压的活性聚合物膜
    • US07113472B2
    • 2006-09-26
    • US10096674
    • 2002-03-12
    • Hidenori WadaSeiji NishinoShin-ichi KadowakiHiroaki YamamotoDaisuke Ogata
    • Hidenori WadaSeiji NishinoShin-ichi KadowakiHiroaki YamamotoDaisuke Ogata
    • G11B7/00
    • G11B7/128G02F1/061G02F2203/07G11B7/1369
    • An optical head for recording or reproducing a signal with respect to an optical recording medium, which includes an optical element disposed between a light source and an optical recording medium. The optical element has an optically active polymer film in which an optical rotation property changes with respect to an applied voltage, a pair of conductive transparent thin films for applying a voltage to the optically active polymer film, and a transmittance polarization anisotropic part having a different transmittance with respect to a polarization direction, which is disposed on one of the conductive transparent thin films. By changing the applied voltage to the optically active polymer film, a light quantity of a linearly polarized light transmitted through the optical element can be changed substantially instantaneously. Therefore, the power of light reaching the optical recording medium can be switched substantially instantaneously at the time when switched between recording and reproduction.
    • 一种用于记录或再现关于光学记录介质的信号的光学头,其包括设置在光源和光学记录介质之间的光学元件。 光学元件具有光学旋转特性相对于施加电压发生变化的光学活性聚合物膜,用于向光学活性聚合物膜施加电压的一对导电透明薄膜和具有不同的透射率偏振各向异性部分 相对于偏振方向的透射率,其设置在导电透明薄膜之一上。 通过将施加的电压改变为光学活性聚合物膜,可以基本上瞬时地改变透过光学元件的线偏振光的光量。 因此,到达光记录介质的光的功率可以在记录和再现之间切换时基本瞬时切换。
    • 104. 发明授权
    • Carbonyl reductases, polynucleotides comprising DNA encoding the same, methods for producing the same, and methods for producing optically active alcohol utilizing the same
    • 羰基还原酶,包含编码该DNA的多核苷酸,其制备方法和利用其制备光学活性醇的方法
    • US07083962B2
    • 2006-08-01
    • US10826081
    • 2004-04-15
    • Norihiro KimotoHiroaki YamamotoTakanori Nakajima
    • Norihiro KimotoHiroaki YamamotoTakanori Nakajima
    • C12N9/02C12N1/18C12N15/74C12P21/04C07H21/04
    • C12N9/0006C12P7/22
    • An objective of the present invention is to provide methods for efficiently producing (S)-1-(3,4-dimethoxyphenyl)-2-propanol at a high optical purity. Another objective is to provide novel reductases which reduce 3,4-dimethoxyphenylacetone, using NADPH as a coenzyme, to produce (S)-1-(3,4-dimethoxyphenyl)-2-propanol with a high optical purity.The inventors found that a 3,4-dimethoxyphenylacetone-reducing enzyme present in Torulaspora delbrueckii is a novel carbonyl reductase that reduces various carbonyls. This novel enzyme reduces 3,4-dimethoxyphenylacetone in a reduction reaction to produce (S)-1-(3,4-dimethoxyphenyl)-2-propanol with a high optical purity and at a high yield. Furthermore, the inventors isolated a DNA that encodes the present enzyme, and generated a recombinant bacterium which highly expresses the present enzyme. Thus, the present inventors established a simple and highly economical method of obtaining optically active alcohols with a high optical purity and at a high yield.
    • 本发明的目的是提供以高光学纯度有效生产(S)-1-(3,4-二甲氧基苯基)-2-丙醇的方法。 另一个目标是提供使用NADPH作为辅酶还原3,4-二甲氧基苯丙酮的新型还原酶,以产生具有高光学纯度的(S)-1-(3,4-二甲氧基苯基)-2-丙醇。 本发明人发现存在于Torulaspora delbrueckii中的3,4-二甲氧基苯丙酮还原酶是一种可以还原各种羰基的新型羰基还原酶。 这种新型的酶在还原反应中还原3,4-二甲氧基苯丙酮,得到具有高光学纯度和高收率的(S)-1-(3,4-二甲氧基苯基)-2-丙醇。 此外,本发明人分离出编码本发明酶的DNA,并生成高表达本发明酶的重组细菌。 因此,本发明人建立了以高光学纯度和高收率获得光学活性醇的简单和高效的方法。
    • 106. 发明申请
    • Wireless communication system
    • 无线通信系统
    • US20060045054A1
    • 2006-03-02
    • US10530651
    • 2003-10-17
    • Kuniaki UtsumiHiroaki YamamotoKouichi MasudaTsutomu NiihoMariko NakasoHiroyuki Sasai
    • Kuniaki UtsumiHiroaki YamamotoKouichi MasudaTsutomu NiihoMariko NakasoHiroyuki Sasai
    • H04Q7/24
    • H04W4/18H04B10/25754H04W84/12H04W88/04H04W92/02
    • A SW (70) receives an Ethernet® signal from an outside of areas E and F. The SW (70) selects and outputs the obtained Ethernet® signal to any one of APs (91a to 91e) in accordance with a network structure managed by the SW (70). The AP (91a to 91e) converts the Ethernet® signal to an electrical signal type wireless LAN signal, which is in turn output to a main station (10). The main station (10) frequency-multiplexes the signal output from each of the APs (91a to 91e), and converts the signal to an optical signal, which is in turn output to sub-stations (20a and 20b) The sub-station (20a and 20b) transmits the signal transmitted from the main station (10) to a terminal in the form of a wireless radio wave. Thereby, when a plurality of communication areas are present, the accommodation capacity of an AP can be effectively utilized in each communication area.
    • SW(70)从区域E和F的外部接收以太网(R)信号.SW(70)根据以下的方式选择并将获得的以太网(R)信号输出到任何一个AP(91a至91e) 具有由SW(70)管理的网络结构。 AP(91a至91e)将以太网(R)信号转换为电信号型无线LAN信号,该电信号型无线LAN信号又输出到主站(10)。 主站(10)对从每个AP(91a至91e)输出的信号进行频率复用,并将该信号转换为光信号,该光信号又输出到子站(20a和20b) 子站(20A和20b)以无线电波的形式将从主站(10)发送的信号发送到终端。 因此,当存在多个通信区域时,可以在每个通信区域中有效地利用AP的容纳能力。