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    • 7. 发明申请
    • Wave Retardation Plate and Optical Pickup Device Has Them
    • 波导板和光学拾取器具有它们
    • US20080043328A1
    • 2008-02-21
    • US11571607
    • 2004-11-16
    • Yong-Shig ShimSung-Min ChoJae-Wan Jeong
    • Yong-Shig ShimSung-Min ChoJae-Wan Jeong
    • G11B7/135G02B5/30
    • G11B7/1353G11B7/1365G11B2007/0006
    • The present invention relates to a phase retardation plate including a thin organic film with a phase retardation function due to birefringence and a fixed substrate bonded to at least one surface of the thin organic film using an adhesive, and to an optical pickup device having the phase retardation plate. In the phase retardation plate and the optical pickup device using the same, a liner thermal expansion coefficient (L1) of the thin organic film, a liner thermal expansion coefficient (L2) of the adhesive and a liner thermal expansion coefficient (L3) of the fixed substrate satisfy a relationship of L1>L2>L3; and the thin organic film retards the phase of incident light with a wavelength in a range of 400 to 800 nm by π/2 or π, the thin organic film having a phase retardation value between 0 and π. Accordingly, there is provided a phase retardation plate and an optical pickup device using the same, wherein fixation between materials is securely kept against a change in temperature over a long period of time, thereby improving reliability of products and obtaining a desired amount of phase retardation for incident light of a wide wavelength band.
    • 本发明涉及一种相位延迟板,该相位延迟板包括由于双折射而具有相位延迟功能的薄有机膜和使用粘合剂粘合到有机薄膜的至少一个表面上的固定基板,以及具有相位的光学拾取装置 延迟板 在相位延迟板和使用其的光学拾取装置中,有机薄膜的衬里热膨胀系数(L 1),粘合剂的衬里热膨胀系数(L 2)和衬里热膨胀系数(L 3 )满足L 1> L 2> L 3的关系; 并且薄的有机膜将波长在400至800nm范围内的入射光的相位延迟π/ 2或π,薄的有机膜的相位延迟值介于0和pi之间。 因此,提供了一种相位延迟板和使用该相位延迟板的光拾取装置,其中材料之间的牢固地保持长时间的温度变化,从而提高产品的可靠性并获得期望的相位延迟量 对于宽波段的入射光。
    • 8. 发明申请
    • Direct methanol fuel cell having reduced crossover of methanol and comprising a layer of material for controlling the diffusion rate of fuel
    • 直接甲醇燃料电池具有降低的甲醇交换并且包括用于控制燃料扩散速率的材料层
    • US20070026286A1
    • 2007-02-01
    • US11394650
    • 2006-03-31
    • Chan-Hwa ChungWoo-Jae KimHoo-Gon ChoiYoung-Kwan LeeSung-Min ChoJae-Do Nam
    • Chan-Hwa ChungWoo-Jae KimHoo-Gon ChoiYoung-Kwan LeeSung-Min ChoJae-Do Nam
    • H01M8/02H01M8/10
    • H01M8/1011H01M8/04186H01M8/04197H01M8/04208H01M2250/30Y02B90/18Y02E60/523
    • The present invention relates to a direct methanol fuel cell having reduced methanol crossover, which comprises a layer of material for controlling the diffusion rate of fuel. More particularly, it relates to a direct methanol fuel cell in which the material for controlling the diffusion rate of fuel is interposed between an anode and a fuel reservoir or positioned within the fuel reservoir, and thus, the diffusion rate of methanol is reduced even when using high concentration methanol fuel, such that the injected methanol is completely reacted in a catalyst layer so as to fundamentally reduce unreacted methanol, thereby suppressing the methanol crossover phenomenon and exhibiting high power density. In the inventive direct methanol fuel cell, the diffusion rate of fuel is controlled using the fuel diffusion rate-controlling material so as to suppress the methanol crossover phenomenon, thereby increasing energy density and output density. Also, since a high methanol concentration of aqueous methanol fuel is used in the inventive fuel cell, the fuel cell can be used for a long period of time even with a small amount of fuel, and the volume of the fuel reservoir can be reduced, thus making it easy to miniaturize the fuel cell. According to the invention, the performance of all kinds of direct methanol fuel cells can be improved and the fuel cells can be used as electric power sources for small-sized portable electronic products, such as portable phones, PDAs, and notebook computers.
    • 本发明涉及具有降低的甲醇交叉的直接甲醇燃料电池,其包括用于控制燃料扩散速率的材料层。 更具体地说,本发明涉及一种直接甲醇燃料电池,其中用于控制燃料扩散速率的材料介于阳极和燃料容器之间或者位于燃料储存器内,因此即使当甲醇燃料电池的扩散速率 使用高浓度甲醇燃料,使得注入的甲醇在催化剂层中完全反应,从根本上减少未反应的甲醇,从而抑制甲醇交叉现象并表现出高的功率密度。 在本发明的直接甲醇燃料电池中,使用燃料扩散速率控制材料控制燃料的扩散速率,以抑制甲醇交叉现象,从而增加能量密度和输出密度。 此外,由于在本发明的燃料电池中使用高甲醇浓度的甲醇水溶液,所以即使使用少量的燃料也能够长时间使用燃料电池,并且可以减少燃料容积的体积, 从而容易使燃料电池小型化。 根据本发明,可以提高各种直接甲醇燃料电池的性能,并且燃料电池可以用作便携式电话,PDA和笔记本电脑等小型便携式电子产品的电力来源。
    • 9. 发明授权
    • Method of outputting a list of information in a portable cellular telephone using a single function key
    • 使用单个功能键输出便携式蜂窝电话中的信息列表的方法
    • US06751469B1
    • 2004-06-15
    • US09538145
    • 2000-03-29
    • Sung-Min Cho
    • Sung-Min Cho
    • H04M100
    • H04M1/274525H04M1/72519
    • Disclosed is a method of outputting a list of information stored in a memory of a portable cellular telephone, comprising the steps of: determining if a list key arranged in a key input section of the portable cellular telephone is depressed; and outputting the information stored in the memory in such a fashion that the information is listed when the list key is depressed. The portable cellular telephone for implementing the method according to the present invention provides an advantage that once a user depresses only one list key arranged on the key input section of the portable cellular telephone, as a list of telephone number information is simply and easily outputted in order, thereby offering convenience to the user in use of the portable cellular telephone.
    • 公开了一种输出存储在便携式蜂窝电话的存储器中的信息列表的方法,包括以下步骤:确定布置在便携式蜂窝电话的键输入部分中的列表键是否被按下; 以及当按下列表键时以这样的方式列出存储在存储器中的信息。 用于实现根据本发明的方法的便携式蜂窝电话提供的优点是,一旦用户仅按下布置在便携式蜂窝电话的键输入部分上的一个列表键,就可以简单且容易地输出电话号码信息列表 从而为使用便携式蜂窝电话的用户提供方便。