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公开(公告)号：US08599893B2
公开(公告)日：2013-12-03
申请号：US13225609
申请日：2011-09-06
Applicant: Namje Kim , Kyung Hyun Park , Young Ahn Leem , Hyunsung Ko , Sang-Pil Han , Chul-Wook Lee , Dong-Hun Lee
Inventor： Namje Kim , Kyung Hyun Park , Young Ahn Leem , Hyunsung Ko , Sang-Pil Han , Chul-Wook Lee , Dong-Hun Lee
IPC: H01S5/00
CPC classification number: H01S5/06258 , G02F1/3534 , G02F2/002 , G02F2203/13 , H01S5/026 , H01S5/1092 , H01S5/1215 , H01S5/1237 , H01S5/4087
Abstract: Disclosed is a terahertz wave generator which includes a dual mode semiconductor laser device configured to generate at least two laser lights having different wavelengths and to beat the generated laser lights; and a photo mixer formed on the same chip as the dual mode semiconductor laser device and to generate a continuous terahertz wave when excited by the beat laser light.
Abstract translation: 公开了一种太赫兹波发生器，其包括双模式半导体激光器装置，其被配置为产生具有不同波长的至少两个激光并且击发所产生的激光; 以及形成在与双模半导体激光器件相同的芯片上的光混合器，并且当由拍子激光激发时产生连续的太赫兹波。
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公开(公告)号：US08283080B2
公开(公告)日：2012-10-09
申请号：US11046131
申请日：2005-01-27
Applicant: Dong-Hun Lee , Kyu-Nam Han , Ho-Jin Kweon
Inventor： Dong-Hun Lee , Kyu-Nam Han , Ho-Jin Kweon
IPC: H01M8/06
CPC classification number: H01M8/04 , H01M8/0612 , H01M8/0662
Abstract: A fuel cell system includes at least one electricity generating unit for generating electric energy through an electrochemical reaction between oxygen and hydrogen, a reformer for reforming fuel to generate hydrogen gas to be supplied to the electricity generating unit, a fuel supply apparatus for absorbing a liquid fuel stored in a fuel reservoir and supplying the fuel to the reformer and an oxygen supply source for supplying oxygen to the electricity generating unit. The fuel supply apparatus employs an absorber with capillary channels in which osmotic pressure is produced due to a concentration differential caused by thermal energy. The osmotic pressure allows the fuel to flow.
Abstract translation: 燃料电池系统包括至少一个用于通过氧和氢之间的电化学反应产生电能的发电单元，用于重整燃料以产生供应给发电单元的氢气的重整器，用于吸收液体的燃料供应装置 存储在燃料储存器中并将燃料供给重整器的燃料和用于向发电单元供氧的供氧源。 燃料供给装置采用具有毛细通道的吸收器，其中由于由热能引起的浓度差异而产生渗透压。 渗透压允许燃料流动。
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公开(公告)号：US20120163821A1
公开(公告)日：2012-06-28
申请号：US13325076
申请日：2011-12-14
Applicant: Oh-Kee KWON , Chul-Wook Lee , Dong-Hun Lee , Young Ahn Leem , Yongsoon Baek
Inventor： Oh-Kee KWON , Chul-Wook Lee , Dong-Hun Lee , Young Ahn Leem , Yongsoon Baek
IPC: H04J14/02
CPC classification number: H04J14/02 , G02B6/12007 , G02B6/124 , G02B6/2813 , H01S5/026 , H01S5/0265 , H01S5/0268 , H01S5/1237 , H01S5/125 , H01S5/4012 , H01S5/4087 , H04B10/506
Abstract: Provided is a multi-wavelength optical source generator. The multi-wavelength optical source generator includes: a gain part generating a plurality of lights through a plurality of gain waveguides; a reflective part transmitting or reflecting lights provided from each of the plurality of gain waveguides according to a wavelength; and a multiplexing part multiplexing a plurality of lights transmitted and outputted through the reflective part.
Abstract translation: 提供了一种多波长光源发生器。 多波长光源发生器包括：通过多个增益波导产生多个光的增益部分; 根据波长从多个增益波导中的每一个提供的发射或反射光的反射部分; 以及多路复用部分，复用通过反射部分传输和输出的多个光。
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公开(公告)号：US20120098990A1
公开(公告)日：2012-04-26
申请号：US13240670
申请日：2011-09-22
Applicant: Wun-Ki JUNG , Seung-Hyun Lim , Dong-Hun Lee , Kwi-Sung Yoo , Min-Ho Kwon , Chi-Ho Hwang
Inventor： Wun-Ki JUNG , Seung-Hyun Lim , Dong-Hun Lee , Kwi-Sung Yoo , Min-Ho Kwon , Chi-Ho Hwang
CPC classification number: H04N5/378 , H03M1/162 , H03M1/56 , H04N5/3575 , H04N5/374
Abstract: An analog-to-digital converter includes a comparison signal generation unit and a control unit. The comparison signal generation unit determines a logic level of a comparison signal by comparing an input signal with a selected reference signal based on a switch control signal in a first comparison mode, and by comparing a difference voltage with a ramp signal based on the switch control signal in a second comparison mode. The difference voltage is generated based on the input signal and the selected reference signal such that a level of the difference voltage is lower than a fine voltage level corresponding to a voltage level of the selected reference signal in the second comparison mode. The control unit generates the switch control signal based on the comparison signal and a mode selection signal.
Abstract translation: 模数转换器包括比较信号生成单元和控制单元。 比较信号生成单元通过在第一比较模式中基于开关控制信号比较输入信号与所选择的参考信号，并且通过基于开关控制将差分电压与斜坡信号进行比较来确定比较信号的逻辑电平 信号在第二比较模式。 基于输入信号和所选择的参考信号产生差分电压，使得差分电压的电平低于与第二比较模式中所选参考信号的电压电平相对应的精细电压电平。 控制单元基于比较信号和模式选择信号产生开关控制信号。
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公开(公告)号：US08149890B2
公开(公告)日：2012-04-03
申请号：US12980907
申请日：2010-12-29
Applicant: Kyung Hyun Park , Namje Kim , Young Ahn Leem , Sang-Pil Han , Hyunsung Ko , Chul-Wook Lee , Dong-Hun Lee , Jaeheon Shin , Eundeok Sim , Yongsoon Baek
Inventor： Kyung Hyun Park , Namje Kim , Young Ahn Leem , Sang-Pil Han , Hyunsung Ko , Chul-Wook Lee , Dong-Hun Lee , Jaeheon Shin , Eundeok Sim , Yongsoon Baek
IPC: H01S5/00
CPC classification number: H01S5/06258 , B82Y20/00 , H01S5/0265 , H01S5/0612 , H01S5/1017 , H01S5/1064 , H01S5/1231 , H01S5/227 , H01S5/34306
Abstract: Provided is a multiple distributed feedback laser device which includes a first distributed feedback region, a modulation region, a second distributed feedback region, and an amplification region. An active layer is disposed on the substrate of the first distributed feedback region, the modulation region, the second distributed feedback region, and the amplification region. A first diffraction grating is disposed in the first distributed feedback region to be coupled to the active layer in the first distributed feedback region. A second diffraction grating is disposed in the second distributed feedback region to be coupled to the active layer in the second distributed feedback region. The multiple distributed feedback laser device further includes a first micro heater configured to supply heat to the first diffraction grating and a second micro heater configured to supply heat to the second diffraction grating.
Abstract translation: 提供了一种多分布反馈激光装置，其包括第一分布反馈区域，调制区域，第二分布反馈区域和放大区域。 有源层设置在第一分布反馈区域，调制区域，第二分布反馈区域和放大区域的衬底上。 第一衍射光栅设置在第一分布反馈区域中，以耦合到第一分布反馈区域中的有源层。 第二衍射光栅设置在第二分布反馈区域中，以耦合到第二分布反馈区域中的有源层。 多分布式反馈激光装置还包括被配置为向第一衍射光栅供应热量的第一微加热器和被配置为向第二衍射光栅供热的第二微加热器。
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Patent Agency Ranking
公开(公告)号：US20110090932A1
公开(公告)日：2011-04-21
申请号：US12980907
申请日：2010-12-29
Applicant: Kyung Hyun PARK , Namje Kim , Young Ahn Leem , Sang-Pil Han , Hyunsung Ko , Chul-Wook Lee , Dong-Hun Lee , Jaeheon Shin , Eundeok Sim , Yongsoon Baek
Inventor： Kyung Hyun PARK , Namje Kim , Young Ahn Leem , Sang-Pil Han , Hyunsung Ko , Chul-Wook Lee , Dong-Hun Lee , Jaeheon Shin , Eundeok Sim , Yongsoon Baek
CPC classification number: H01S5/06258 , B82Y20/00 , H01S5/0265 , H01S5/0612 , H01S5/1017 , H01S5/1064 , H01S5/1231 , H01S5/227 , H01S5/34306
Abstract: Provided is a multiple distributed feedback laser device which includes a first distributed feedback region, a modulation region, a second distributed feedback region, and an amplification region. An active layer is disposed on the substrate of the first distributed feedback region, the modulation region, the second distributed feedback region, and the amplification region. A first diffraction grating is disposed in the first distributed feedback region to be coupled to the active layer in the first distributed feedback region. A second diffraction grating is disposed in the second distributed feedback region to be coupled to the active layer in the second distributed feedback region. The multiple distributed feedback laser device further includes a first micro heater configured to supply heat to the first diffraction grating and a second micro heater configured to supply heat to the second diffraction grating.
Abstract translation: 提供了一种多分布反馈激光装置，其包括第一分布反馈区域，调制区域，第二分布反馈区域和放大区域。 有源层设置在第一分布反馈区域，调制区域，第二分布反馈区域和放大区域的衬底上。 第一衍射光栅设置在第一分布反馈区域中，以耦合到第一分布反馈区域中的有源层。 第二衍射光栅设置在第二分布反馈区域中，以耦合到第二分布反馈区域中的有源层。 多分布式反馈激光装置还包括被配置为向第一衍射光栅供应热量的第一微加热器和被配置为向第二衍射光栅供热的第二微加热器。
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公开(公告)号：US07745028B2
公开(公告)日：2010-06-29
申请号：US11044049
申请日：2005-01-28
Applicant: Dong-Hun Lee , Ho-Jin Kweon , Seong-Jin An
Inventor： Dong-Hun Lee , Ho-Jin Kweon , Seong-Jin An
CPC classification number: H01M8/04089 , H01M8/04156 , H01M8/04208 , H01M8/0612 , H01M8/1011 , Y02E60/523
Abstract: A fuel cell system comprising a fuel tank, a stack generating electrical energy using fuel and an oxidizer supplied thereto, and a pressure reducing unit supplying the fuel from a fuel tank to the stack while maintaining the pressure of the stack lower than the atmospheric pressure is provided.
Abstract translation: 一种燃料电池系统，包括燃料箱，使用燃料产生电能的堆叠和供给其的氧化剂，以及将燃料从燃料箱供应到堆叠的减压单元，同时保持堆的压力低于大气压力， 提供。
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公开(公告)号：US07691516B2
公开(公告)日：2010-04-06
申请号：US11066658
申请日：2005-02-25
Applicant: Dong-Hun Lee , Ho-Jin Kweon , Hyoung-Juhn Kim , Seong-Jin An , Jun-Won Suh , Jong-Man Kim , Hae-Kwon Yoon , Sung-Yong Cho , Yeong-Chan Eun
Inventor： Dong-Hun Lee , Ho-Jin Kweon , Hyoung-Juhn Kim , Seong-Jin An , Jun-Won Suh , Jong-Man Kim , Hae-Kwon Yoon , Sung-Yong Cho , Yeong-Chan Eun
IPC: H01M2/00
CPC classification number: H01M8/026 , H01M8/0263
Abstract: A fuel cell system optimizing the ratio of width of a channel to a width of a rib forming a passage for supplying fuel and air, the ratio of width thereof to a height of a channel, and the number of passages, thereby improving the fuel diffusing performance and reducing a pressure drop therein is provided. The fuel cell system includes at least one stack for generating electrical energy by an electrochemical reaction between hydrogen and oxygen, a fuel supply portion for supplying fuel to the stack, and an oxygen supply portion for supplying oxygen to the stack. The stack is formed into a stacked configuration having a plurality of membrane electrode assemblies separated by separators. The separators have ribs which closely contact the adjacent membrane electrode assemblies and form channels through which the oxygen and hydrogen flow. The ratio of the width of a channel to the height of the same is between about 0.6 and about 0.8.
Abstract translation: 一种燃料电池系统优化通道的宽度与形成用于供应燃料和空气的通道的肋的宽度的比率，其宽度与通道的高度的比率以及通道的数量，从而改善燃料扩散 提供了性能并降低其中的压降。 燃料电池系统包括用于通过氢和氧之间的电化学反应产生电能的至少一个堆叠，用于向堆叠供应燃料的燃料供应部分和用于向堆供给氧的氧气供应部分。 堆叠形成为具有由分离器隔开的多个膜电极组件的堆叠构造。 分离器具有与相邻膜电极组件紧密接触并形成通道的肋，氧气和氢气通过该通道流动。 通道的宽度与其高度的比率在约0.6和约0.8之间。
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公开(公告)号：US07674542B2
公开(公告)日：2010-03-09
申请号：US11054002
申请日：2005-02-08
Applicant: Kyu-Nam Han , Dong-Hun Lee
Inventor： Kyu-Nam Han , Dong-Hun Lee
CPC classification number: H01M8/04149 , H01M8/04097 , H01M8/04141 , H01M8/0618 , H01M8/1011 , H01M2008/1095 , Y02E60/523
Abstract: A fuel cell system includes a stack for generating electricity through an electrochemical reaction between hydrogen and oxygen, a fuel supply unit for supplying fuel to the stack, an air supply unit for supplying air to the stack, and a vaporizing unit connected with the stack and for vaporizing moisture discharged from the stack.
Abstract translation: 燃料电池系统包括通过氢和氧之间的电化学反应发电的堆，用于向堆提供燃料的燃料供应单元，用于向堆提供空气的空气供应单元，以及与堆叠连接的蒸发单元， 用于蒸发从堆叠排出的水分。
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公开(公告)号：US20090208788A1
公开(公告)日：2009-08-20
申请号：US12385510
申请日：2009-04-09
Applicant: Ju-Yong Kim , Hyoung-Juhn Kim , Dong-Hun Lee , Seong-Jin An , Sung-Yong Cho , Yeong-Chan Eun , Ho-Jin Kweon
Inventor： Ju-Yong Kim , Hyoung-Juhn Kim , Dong-Hun Lee , Seong-Jin An , Sung-Yong Cho , Yeong-Chan Eun , Ho-Jin Kweon
IPC: H01M8/06
CPC classification number: H01M8/0612 , C01B3/323 , C01B2203/0233 , C01B2203/0261 , C01B2203/0283 , C01B2203/044 , C01B2203/066 , C01B2203/0811 , C01B2203/1223 , C01B2203/1229 , C01B2203/1241 , H01M8/04007 , H01M8/04082 , H01M8/04097 , H01M8/04156 , H01M8/04186 , H01M8/04223 , H01M8/04225 , H01M8/0662
Abstract: A fuel cell system includes a reformer for generating hydrogen gas from fuel containing hydrogen using a chemical catalytic reaction and thermal energy. At least one electricity generator generates electrical energy by an electrochemical reaction of the hydrogen gas and oxygen. A fuel supply assembly supplies fuel to the reformer, and an oxygen supply assembly supplies oxygen to the at least one electricity generator. A heat exchanger is connected to the reformer and to the at least one electricity generator. The heat exchanger supplies thermal energy of the reformer, during initial operation of the system, to the at least one electricity generator so as to pre-heat the at least one electricity generator.
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