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    • 1. 发明授权
    • Semiconductor light emitting element
    • 半导体发光元件
    • US4361887A
    • 1982-11-30
    • US125779
    • 1980-02-29
    • Michiharu NakamuraMotohisa HiraoShigeo YamashitaTadashi FukuzawaJunichi Umeda
    • Michiharu NakamuraMotohisa HiraoShigeo YamashitaTadashi FukuzawaJunichi Umeda
    • H01L29/80H01L21/338H01L27/095H01L27/15H01L29/812H01S5/00H01S5/026H01S5/042H01S3/19
    • H01S5/0265
    • A semiconductor laser light emitting element comprises a semiconductor substrate, a laminate region of semiconductor layers having at least a first, a second and a third semiconductor layer formed over the substrate and having a p-n junction defined therein. The first and third semiconductor layers have smaller refractive indices and greater forbidden band gaps than the second semiconductor layer and are opposite in conductivity type to each other. Provided are on the substrate a field effect transistor section having first and second electrodes and a gate electrode disposed between the first and second electrodes, a means for serving as an optical resonator for emitting light in the lengthwise direction of the p-n junction. A means is formed on one surface of the laminate region for injecting current into the third semiconductor layer, the current injection means is short-circuited with the first electrode of the field transistor section and a means is formed on the substrate for receiving the current injected from the current injecting means.
    • 半导体激光发光元件包括半导体衬底,半导体层的层叠区域,其至少形成在衬底上并具有限定在其中的p-n结的第一,第二和第三半导体层。 第一和第三半导体层具有比第二半导体层更小的折射率和更大的禁带宽度,并且与导电类型相反。 在基板上设置有具有第一和第二电极的场效应晶体管部分和设置在第一和第二电极之间的栅电极,用作用于在p-n结的长度方向上发光的光谐振器的装置。 在层叠区域的一个表面上形成用于将电流注入到第三半导体层中的装置,电流注入装置与场晶体管部分的第一电极短路,并且在基板上形成用于接收注入电流的装置 从目前的注射手段。
    • 4. 发明授权
    • Semiconductor laser device
    • 半导体激光器件
    • US4257011A
    • 1981-03-17
    • US929013
    • 1978-07-28
    • Michiharu NakamuraShigeo YamashitaTakao KurodaJun-ichi Umeda
    • Michiharu NakamuraShigeo YamashitaTakao KurodaJun-ichi Umeda
    • H01S5/12H01S5/223H01S3/19
    • H01S5/12H01S5/2232H01S5/2234
    • A semiconductor laser device has stabilized longitudinal and transverse modes without excess optical noise for a modulated signal generated by mode interaction. The fundamental construction of the semiconductor laser device comprises a structure wherein a first semiconductor layer is sandwiched between second and third semiconductor layers which have a greater band gap and lower index of refraction than the first semiconductor layer. That region of at least one of the second and third semiconductor layers which is remote from the first semiconductor layer corresponds substantially to a radiation region and serves as a light non-absorptive region in the shape of a stripe. A semiconductor layer has portions lying on both sides of the semiconductor layer remote from the first semiconductor layer and has an effective complex refractive-index for laser light discontinuous at both ends of the semiconductor layer remote from the first semiconductor layer. Periodic corrugations which intersect orthogonally to the lengthwise direction of the stripe-shaped light non-absorptive region are formed in at least one interface of the semiconductor layers in a manner to include at least a region corresponding to the light non-absorptive region.
    • 半导体激光器件对于通过模式相互作用产生的调制信号具有稳定的纵向和横向模式而没有过多的光学噪声。 半导体激光器件的基本结构包括其中第一半导体层夹在具有比第一半导体层更大的带隙和较低的折射率的第二和第三半导体层之间的结构。 远离第一半导体层的第二和第三半导体层中的至少一个的区域基本上对应于辐射区域,并且用作条纹形状的光非吸收区域。 半导体层具有位于远离第一半导体层的半导体层的两侧的部分,并且对于远离第一半导体层的半导体层的两端处的不连续的激光具有有效的复合折射率。 以至少包括对应于光非吸收区域的区域的方式,在半导体层的至少一个界面中形成与条形光非吸收区域的长度方向垂直相交的周期波纹。
    • 6. 发明授权
    • Mixing method, mixing structure, micromixer and microchip having the mixing structure
    • 混合方法,混合结构,具有混合结构的微混合器和微芯片
    • US06851846B2
    • 2005-02-08
    • US10171920
    • 2002-06-14
    • Yasuhisa FujiiShigeo YamashitaYasuhiro SandoKoji YamamotoShunichi Hayamizu
    • Yasuhisa FujiiShigeo YamashitaYasuhiro SandoKoji YamamotoShunichi Hayamizu
    • G01N37/00B01F3/08B01F5/00B01F5/04B01F13/00B01L3/00B01F15/02B81B7/04
    • B01F13/0062B01F5/0453B01F5/0458B01F13/0066B01F13/0093B01F2215/0431B01L3/5027Y10T137/87652
    • Disclosed herewith is a microchip having a micromixer therein. The mixromixer employs a mixing or extracting structure having (1) a first flow pass provided at a first level of the microchip; (2) a second flow pass provided at a second level of the microchip, which is different from the first level; (3) a third flow pass having a plurality of sub flow passes separately layered at the first level and each having a first end and second end thereof, each sub flow pass being connected to one of the first and second flow passes at the first end thereof; and (4) a fourth flow pass, provided at the first level, connected to the second ends of the sub flow passes so that, at least connecting portions between the fourth flow pass and the sub flow passes of the third flow pass, an extending direction of the fourth flow pass is substantially identical to those of the sub flow passes. By allowing the first liquid to flow from the first flow pass to the fourth flow pass through the third flow pass while the second liquid to flow from the second flow pass to the fourth flow pass through the third flow pass, the first and second liquids are mixed at the fourth flow pass.
    • 本文公开的是其中具有微混合器的微芯片。 混合混合器采用混合或提取结构,其具有(1)设置在微芯片的第一级的第一流动通道; (2)设置在不同于第一级的微芯片的第二级的第二流程; (3)第三流程,其具有在第一水平处分开层叠的多个子流通道,每个具有第一端和第二端,每个子流通道在第一端连接到第一和第二流动通道之一 的; 和(4)设置在第一级的第四流道,连接到副流通道的第二端,使得至少第四流通和次流之间的连接部分通过第三流道,延伸 第四流程的方向基本上与副流程相同。 通过使第一液体从第一流通流动到第三流动通道,而第二液体从第二流量流动到第四流动通过第三流动通道,第一和第二液体是 在第四个流程中混合。
    • 7. 发明授权
    • Semiconductor laser device
    • 半导体激光器件
    • US4506366A
    • 1985-03-19
    • US393313
    • 1982-06-29
    • Naoki ChinoneYasutoshi KashiwadaShigeo YamashitaKunio Aiki
    • Naoki ChinoneYasutoshi KashiwadaShigeo YamashitaKunio Aiki
    • H01S5/00H01S5/16H01S5/22H01S5/40H01S3/19
    • H01S5/16H01S5/2203H01S5/4043
    • A semiconductor laser device including at least a laminated region of first, second, third and fourth semiconductor layers on a predetermined semiconductor substrate, wherein the third semiconductor layer has a refractive index smaller than that of the second semiconductor layer; the first and fourth semiconductor layers have a refractive index smaller than that of the second and third semiconductor layers and have a conductivity type opposite that of the second and third semiconductor layers; the forbidden band gap of the first and third semiconductor layers is greater than that of the second semiconductor layer; and at least the second and third semiconductor layers are bent so that the laser light generated inside the second semiconductor layer in the proximity of the laser light-emitting facets generates optical coupling in the third semiconductor layer and is emitted from the crystal facets of the third semiconductor layer. The device of the present invention is effective for increasing the output of semiconductor laser devices.
    • 一种半导体激光装置,其特征在于,在规定的半导体基板上至少具有第一,第二,第三,第四和第四半导体层的层叠区域,其中,所述第三半导体层的折射率小于所述第二半导体层的折射率; 第一和第四半导体层的折射率小于第二和第三半导体层的折射率,并且具有与第二和第三半导体层相反的导电类型; 第一和第三半导体层的禁带宽大于第二半导体层的禁带宽; 并且至少第二和第三半导体层被弯曲,使得在激光发射面附近在第二半导体层内部产生的激光在第三半导体层中产生光耦合,并从第三半导体层的晶面发射 半导体层。 本发明的器件对于增加半导体激光器件的输出是有效的。
    • 10. 发明授权
    • Dynamic focus adjusting voltage generating circuit
    • 动态聚焦调整电压发生电路
    • US5043638A
    • 1991-08-27
    • US436714
    • 1989-11-15
    • Shigeo Yamashita
    • Shigeo Yamashita
    • H04N3/26
    • H04N3/26
    • A dynamic focus adjusting voltage generating circuit for generating a dynamic focus adjusting voltage to be applied to a CRT for displaying images. The circuit includes a horizontal output circuit for supplying a sawtooth wave current to the horizontal deflection coil of the CRT, and a series circuit connected in parallel with the terminals of the horizontal output circuit and consisting of a capacitor and an inductance coil connected in series with each other. An electric potential developed at a node between the capacitance and the inductance coil is used as the dynamic focus adjusting voltage.
    • 一种动态聚焦调整电压产生电路,用于产生要施加到用于显示图像的CRT的动态聚焦调节电压。 该电路包括用于向CRT的水平偏转线圈提供锯齿波电流的水平输出电路,以及与水平输出电路的端子并联连接的串联电路,由电容器和电感线圈串联连接 彼此。 在电容和电感线圈之间的节点处产生的电位用作动态焦点调整电压。