专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20070076773A1 Buried ridge waveguide laser diode 有权
标题翻译：埋脊波导激光二极管
公开(公告)号：US20070076773A1
公开(公告)日：2007-04-05
申请号：US11633739
申请日：2006-12-05
申请人： Su Hwan Oh , Ki Kim , Oh Kee Kwon , Yong Baek
发明人： Su Hwan Oh , Ki Kim , Oh Kee Kwon , Yong Baek
IPC分类号： H01S5/00
CPC分类号： H01S5/2231 , B82Y20/00 , H01S5/1039 , H01S5/2222 , H01S5/3211 , H01S5/3213 , H01S5/34306
摘要： Provided is a buried ridge waveguide laser diode that has improved temperature characteristics and can reduce optical loss by a leakage current. The buried ridge waveguide laser diode includes: a ridge region that extends vertically with a constant width and is composed of a selective etching layer and a first compound layer formed of a first conductive type material on a portion of the clad layer; and a p-n-p current blocking layer that has a thickness identical to the depth of the ridge region on the clad layer outside the ridge region and includes a second compound layer formed of a second conductive type material opposite to the first conductive type material. At this time, the current blocking layer includes the first compound layer extending on the second compound layer.
摘要翻译：提供了具有改善的温度特性并且可以通过漏电流来减少光学损耗的埋脊式波导激光二极管。掩埋脊波导激光二极管包括：以恒定宽度垂直延伸的脊区域，并且由包层的一部分上的选择性蚀刻层和由第一导电型材料形成的第一复合层构成; 以及p-n-p电流阻挡层，其厚度与脊区域外的包覆层上的脊区域的深度相同，并且包括由与第一导电类型材料相对的第二导电类型材料形成的第二化合物层。此时，电流阻挡层包括在第二化合物层上延伸的第一化合物层。

52. 发明申请

US20060051030A1 Planar lightwave circuit type optical transceiver module 有权
标题翻译：平面光波电路式光收发模块
公开(公告)号：US20060051030A1
公开(公告)日：2006-03-09
申请号：US11188302
申请日：2005-07-25
申请人： Jong Lee , Sun Park , Joon Ahn , Yong Baek
发明人： Jong Lee , Sun Park , Joon Ahn , Yong Baek
IPC分类号： G02B6/42 , G02B6/28 , G02B6/26
CPC分类号： G02B6/4246 , G02B6/12007 , G02B2006/12109
摘要： Provided is a planar lightwave circuit (PLC) type optical transceiver module, in which for a diplex optical transceiver module that uses different wavelengths in upstream and downstream, an optical waveguide connected to a light-receiving unit is a multi-mode waveguide and an optical waveguide connected to the light-emitting unit is a single mode waveguide, and further, for a triplex optical transceiver module that uses one upstream wavelength and more than two different downstream wavelengths, an optical waveguide connected to the light-receiving unit, which is a waveguide-type photo diode, is a multi-mode waveguide and an optical waveguide connected to the light-emitting unit is a single mode waveguide, whereby even when there is an alignment error of a thin film filter due to irregularity provided in forming a trench, the optical waveguide connected to the light-receiving unit is formed wider than the optical waveguide connected to the light-emitting unit so that the loss during transmission of the optical signal to the light-receiving unit is minimized.
摘要翻译：提供了一种平面光波回路（PLC）型光收发模块，其中对于在上游和下游使用不同波长的双工光收发模块，连接到光接收单元的光波导是多模波导和光连接到发光单元的波导是单模波导，并且对于使用一个上行波长和多于两个不同下游波长的三重光收发器模块，连接到光接收单元的光波导是波导型光电二极管是多模波导，连接到发光单元的光波导是单模波导，即使当形成沟槽时由于不规则性而导致薄膜滤光器的取向误差连接到光接收单元的光波导形成为比连接到发光单元的光波导宽，从而在tra期间的损耗对光接收单元的光信号的保持最小化。

53. 发明授权

US6101342A Apparatus and method for measuring developer contamination of printer 有权
标题翻译：测量打印机显影剂污染的仪器和方法
公开(公告)号：US6101342A
公开(公告)日：2000-08-08
申请号：US427725
申请日：1999-10-27
申请人： Yoon-seop Eom , Won-hyung Lee , Yong-baek Yoo
发明人： Yoon-seop Eom , Won-hyung Lee , Yong-baek Yoo
IPC分类号： G01N21/47 , G01N21/59 , G03G15/00 , G03G15/01 , G03G15/10 , G03G15/11 , G03G21/00 , G03G13/10
CPC分类号： G03G15/0121 , G01N21/59 , G03G15/104
摘要： A developer contamination measuring apparatus of a printer includes a first pipe portion having a first gap and a second pipe portion having a second gap, a light emitting unit radiating light to the first pipe portion and the second pipe portion, a light detecting unit detecting light reflected or transmitted from the first pipe portion and the second pipe portion to output first and second light receiving signals, respectively, and a developer contamination measuring unit controlling the light emitting unit, and calculating the degree of a contamination due to mixing of other developing materials with the developer from the first and the second light receiving signals. Thus, the degree of contamination of a developer mixed with other developing materials can be precisely calculated, and the developer can be replaced, when the calculated amount of contamination exceeds a predetermined allowable contamination level, to thereby prevent deterioration of print quality.
摘要翻译：打印机的显影剂污染物测量装置包括具有第一间隙的第一管部分和具有第二间隙的第二管部分，向第一管部分和第二管部分照射光的发光单元，检测光分别从第一管部分和第二管部分反射或透射以输出第一和第二光接收信号，以及控制发光单元的显影剂污染测量单元，以及计算由于其他显影材料的混合引起的污染程度来自第一和第二光接收信号的显影剂。因此，可以精确地计算出与其他显影材料混合的显影剂的污染程度，并且当计算出的污染物量超过预定的允许污染水平时可以更换显影剂，从而防止打印质量的劣化。

54. 发明授权

US5970289A Apparatus for eliminating excess ions of a developer for liquid electrophotographic printer 有权
标题翻译：用于消除液体电子照相打印机的显影剂的过量离子的装置
公开(公告)号：US5970289A
公开(公告)日：1999-10-19
申请号：US255717
申请日：1999-02-23
申请人： Yong-baek Yoo
发明人： Yong-baek Yoo
IPC分类号： G03G15/10
CPC分类号： G03G15/104
摘要： An apparatus for eliminating excess ions in a developer used for a liquid electrophotographic printer, including a photoreceptor medium, a laser scan unit for forming an electrostatic latent image by emitting a laser beam to the photoreceptor medium, and a developing unit for developing an electrostatic latent image area of the photoreceptor medium using a developer which is a mixture of a toner and a liquid carrier. The apparatus includes: a settling unit provided at one side of the developing unit for settling the toner of the developer supplied from the developing unit in a short time using an electrical force; a developer input/output controller installed between the developing unit and the settling unit for selectively controlling the input/output of the developer; and an excess ion eliminating unit for eliminating excess ions included in the developer in an upper portion of the settling unit. Thus, in the apparatus for eliminating excess ions in a developer, the developer flows sporadically in the settling tank from the developing unit during operation of a printer. The toner in the developer flowed in is settled in a short time by applying a bias voltage to upper and lower electrode plates of the settling unit. Then, the excess ions included in the developer disposed in the upper portion of the settling tank where the settlement of toner is sufficiently made are eliminated. Thus, in a liquid electrophotographic printer adopting the above apparatus according to the present invention, a decrease in the concentration of toner on an image can be prevented.
摘要翻译：一种用于消除用于液体电子照相打印机的显影剂中的过量离子的装置，包括感光体介质，用于通过向感光体介质发射激光而形成静电潜像的激光扫描单元和用于显影静电潜像的显影单元使用作为调色剂和液体载体的混合物的显影剂的感光体介质的图像区域。该装置包括：设置在显影单元的一侧的沉降单元，用于使用电力在短时间内沉淀从显影单元供应的显影剂的调色剂; 安装在显影单元和沉降单元之间的显影剂输入/输出控制器，用于选择性地控制显影剂的输入/输出; 以及过量的离子消除单元，用于消除沉淀单元的上部中包含在显影剂中的过量离子。因此，在用于消除显影剂中的过量离子的装置中，显影剂在打印机的操作期间从显影单元偶然地在沉淀槽中流动。流入的显影剂中的调色剂通过向沉降单元的上下电极板施加偏压而在短时间内稳定。然后，消除了包含在设置在沉淀池上部的显影剂中的过量离子，其中调色剂的沉降充分地形成。因此，在采用根据本发明的上述装置的液体电子照相打印机中，可以防止图像上调色剂浓度的降低。

55. 发明授权

US5828927A Method of preventing back side of paper from contamination in electrophotography printer 失效
标题翻译：防止电子照相打印机中纸张背面受污染的方法
公开(公告)号：US5828927A
公开(公告)日：1998-10-27
申请号：US874131
申请日：1997-06-12
申请人： Yong-Baek Yoo , Moon-Sik Lee , Tagoku Izumi
发明人： Yong-Baek Yoo , Moon-Sik Lee , Tagoku Izumi
IPC分类号： G03G15/00 , G03G15/16 , G03G21/00
CPC分类号： G03G15/1675 , G03G2215/1652
摘要： A back side of a paper is protected from contamination during an operation of the electrophotographic printer. A light scanning unit is warmed up as the main motor operates. This should minimize the potential difference on the surface of the photosensitive drum. A zero or a less than zero voltage is applied to its transfer roller to prevent the toner from adhering to the transfer roller before a paper reaches the transfer roller. This protects the back side of the paper from contamination due to the toner.
摘要翻译：在电子照相打印机的操作期间，纸的背面被保护免受污染。随着主电机的运行，光扫描单元被加热。这应使感光鼓表面的电位差最小化。在其转印辊上施加0或小于零的电压，以防止在纸张到达转印辊之前调色剂粘附到转印辊上。这样可以保护纸张的背面免受由于调色剂的污染。

56. 发明授权

US5758225A Method and device for supplying a variable bias voltage to a developing roller 失效
标题翻译：向显影辊供给可变偏置电压的方法和装置
公开(公告)号：US5758225A
公开(公告)日：1998-05-26
申请号：US351015
申请日：1994-12-08
申请人： Yong-Baek Yoo , Duk-Soo Kim
发明人： Yong-Baek Yoo , Duk-Soo Kim
IPC分类号： G03G15/00 , G03G15/06 , G03G15/08
CPC分类号： G03G15/065
摘要： A method and a device for supplying a developing bias voltage capable of minimizing toner consumption by reducing wasted toner during a printing operation in the image forming apparatus. The image forming apparatus comprises a photosensitive drum for forming an electrostatic latent image, a charger for providing a predetermined charging voltage to the photosensitive drum such that different bias voltages are supplied to image and non-image areas, an exposure unit for forming the electrostatic latent image on the photosensitive drum by providing image data, a developing unit for developing the electrostatic latent image formed on the photosensitive drum by toner, a transfer unit for transferring the developed toner to a printing paper, and a developing bias controller.
摘要翻译：一种用于通过在图像形成装置中的打印操作期间减少浪费的调色剂来提供能够最小化调色剂消耗的显影偏压的方法和装置。图像形成装置包括用于形成静电潜像的感光鼓，用于向感光鼓提供预定充电电压的充电器，使得向图像和非图像区域提供不同的偏置电压，用于形成静电潜像的曝光单元通过提供图像数据在感光鼓上的图像，用于通过调色剂显影形成在感光鼓上的静电潜像的显影单元，用于将显影的调色剂转印到打印纸上的转印单元和显影偏压控制器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式