Patents Represented by Attorney Piper Rudnick LLP
  • Patent number: 6859176
    Abstract: The present invention relates to a dual-band omnidirectional antenna for wireless LANs. The antenna has a planar dielectric substrate, and first and second conductive patterns. The planar dielectric substrate has two parallel surfaces. The first conductive pattern is arranged on one surface of the substrate, and is provided with a first feeder line arranged on a longitudinal central line of the substrate and a plurality of radiating elements connected to the first feeder line and designed such that some of them operate in a high frequency band (4.9 to 5.85 GHz frequency band), and others thereof operate in a low frequency band (2.4 to 2.5 GHz frequency band).
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: February 22, 2005
    Assignees: Institute Information Technology Assessment
    Inventor: Jong-In Choi
  • Patent number: 6858077
    Abstract: The present invention relates to a single crystalline silicon ingot, a single crystalline wafer, and a producing method thereof in accordance with the Czochralski method which enables reduction of a large defect area while increasing a micro-vacancy defect area in an agglomerated vacancy point area, which is the area between a central axis and an oxidation-induced stacking fault ring, by providing uniform conditions of crystal ingot growth and cooling and by adjusting a pulling rate for growing an ingot to grow, thus the oxidation-induced stacking fault ring exists only at an edge of the ingot radius.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: February 22, 2005
    Assignee: Siltron Inc.
    Inventors: Hong-Woo Lee, Joon-Young Choi, Hyon-Jong Cho, Hak-Do Yoo
  • Patent number: 6856332
    Abstract: Disclosed are a picture adjustment method and apparatus for a video display appliance that can prevent an unskillful user from deteriorating a picture display state due to misadjustment of picture adjustment menus that cannot be easily adjusted and retrieved to the original state among a plurality of picture adjustment menus. According to the method and apparatus, a specified user selects and determines whether a plurality of picture adjustment OSDs, each of which includes a small number of picture adjustment menus, are accessible. A command for picture adjustment inputted through the picture adjustment OSDs that have been determined to be accessible only is processed to be effective, but a command for picture adjustment inputted through the picture adjustment OSDs that have been determined to be unaccessible is ignored. Thus, the misadjustment of the picture adjustment menus by an unskillful user can be prevented.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: February 15, 2005
    Assignee: LG Electronics Inc.
    Inventor: Byung Han Kim
  • Patent number: 6855604
    Abstract: The present invention relates to a method for fabricating a metal-oxide semiconductor (MOS) transistor having a gate electrode with a stack structure of a polysilicon layer, a tungsten nitride barrier layer and a tungsten layer. According to the present invention, a depth from a lastly deposited nitride layer to a bottom surface of a trench is shallower, and thereby decreasing incidences of a void generation. Also, the present invention provides an advantage of an elaborate manipulation of well and channel dopings by performing ion-implantations with two different approaches. Furthermore, it is possible to enhance device characteristics by decreasing gate induced drain leakage (GIDL) currents and improving a capability of driving currents. This decrease of the GIDL currents and the improved driving current capability are obtained by forming the gate oxide layer with different thicknesses.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: February 15, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Sang-Don Lee
  • Patent number: 6856011
    Abstract: A semiconductor chip package and a method of fabricating a semiconductor chip package provide a reduced chip size package. The semiconductor chip package includes a semiconductor chip; a plurality of pads disposed on an upper surface of the semiconductor chip; a thermosetting resin formed on the upper surface of the semiconductor chip such that through-holes in the thermosetting resin expose the pads; a multi-layer wiring pattern formed on the thermosetting resin; a connecting unit electrically connecting the multi-layer wiring pattern with the pads; a solder resist on the thermosetting resin, the multi-layer wiring pattern and the connecting unit, such that at least one through-hole in the solder resist exposes a portion of the multi-layer wiring pattern; and a solder ball mounted on the through-hole of the solder resist in contact with the exposed portion of the metal pattern.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: February 15, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kwang Sung Choi
  • Patent number: 6855592
    Abstract: A method for manufacturing a semiconductor device is disclosed, in which characteristics of the semiconductor device and an operation speed are improved. In forming sidewall spacers at both sides of a gate electrode, a semiconductor substrates is partially removed at both sides of the sidewall spacer by controlling an etch gas, and then a process for forming a silicide layer is performed, thereby increasing a distance between the silicide layer and a channel. Accordingly, it is possible to decrease a resistance material between the silicide layer and the channel region.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: February 15, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Wan Gyu Lee
  • Patent number: 6855347
    Abstract: The present invention relates to a novel synergistic herbal composition for the treatment of gastric ulcer, a method for preparing said synergistic herbal composition and a process for the treatment of gastric ulcer using said composition and more particularly, the present invention relates to a novel synergistic herbal composition which is effective against pyloric ligation induced ulcer model and histamine induced ulcer model.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: February 15, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Upparapalli Sampathkumar, Boggavarapu Subrahmanya Sastry, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan, Gautam Palit, Deepak Rai, Panniyampally Madhavankutty Varier, Trikovil Sankaran Muraleedharan, Kollath Muraleedharan
  • Patent number: 6853588
    Abstract: In a first-in first-out memory circuit using a standard cell library memory, a memory block includes N number of memories (N>1). A read pointer designates read addresses of the N number of memories. A write pointer designates write addresses of the N number of memories. A memory controller selects one from the N number of memories based on the read/write addresses, generates n number of read/write clock signals by demultiplying a clock signal by n (n=N, n>1) and sends the n number of read/write clock signals having a 1/n cycle difference to the N number of memories thereby inputting/outputting data.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: February 8, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Youngwoo Kim, Jae Sung Lee, Kyoung Park, Sang Man Moh, Yong Youn Kim, Myung-Joon Kim, Kee-Wook Rim
  • Patent number: 6852507
    Abstract: Recombinant baculovirus used as an expression vector in the production of immunoglobulins with an insect cell. The invention is characterized by a first expression cassette comprising a first sequence coding for at least one portion of an immunoglobulin heavy chain, wherein the sequence is transcriptionally controlled by a first baculovirus promoter, and a second expression cassette comprising a second sequence coding for at least one portion of an immunoglobulin light chain, said second sequence being transcriptionally controlled by a second baculovirus promoter. The first and second promoters are two different promoters or derivatives of different promoters, the first and second promoters residing at different loci.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 8, 2005
    Assignees: Le Centre National de la Recherche Scientifique
    Inventors: Martine Cerutti, Hassan Chaabihi, Gerard Devauchelle, Laurent Gauthier, Michel Kaczorek, Marie-Paule LeFranc, Marie-Alix Poul
  • Patent number: 6851148
    Abstract: A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: February 8, 2005
    Assignee: Chart Inc.
    Inventors: A. Duane Preston, Jon R. Turner, Charles Svoboda
  • Patent number: 6853662
    Abstract: The invention includes an electrically pumped polycrystalline ZnO laser and it's fabrication procedure. A film of ZnO is grown on a suitably adapted polycrystalline underlayer in which the grains are surrounded by electrically insulating boundaries.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: February 8, 2005
    Inventor: David J. Rogers
  • Patent number: 6852548
    Abstract: Chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature, represented by the formulas I or II: wherein T is:
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: February 8, 2005
  • Patent number: 6853575
    Abstract: A cell array of a NAND type ferro-dielectric memory is disclosed. The cell array of ferro-dielectric memory system, including: a plurality of unit cell strings coupled to one bit line; and a plurality of string selectors between each of the unit cell strings and the bit line, wherein only one unit cell string is connected to the bit line through one string selectors. The present invention can decrease a size of cell by eliminating a bit line contact formed in cells and controls a bit line capacitance by using selection transistor, therefore, the present invention can control optimum bit line capacitance by gaining the maximum sense margin.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: February 8, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Eung-Youl Kang
  • Patent number: 6853480
    Abstract: The present invention relates to a main wavelength band of a pump light source capable of improving the pump efficiency while using 1.6 ?m fluorescence emitted from Ho3+:5I5?5I7 transition as an optical amplifier, and an assistant pump wavelength band capable of accomplishing population inversion between 5I5 level and 5I7 level to improve the signal gain characteristics of such amplifier. The optical amplifier using optical materials to which holmium or holmium and terbium, holmium and europium, holmium and neodymium or holmium and dysprosium, etc. are doped can be pumped using a light source that emits light of 11,200˜11,500 cm?1 or a light source that emits light of 6,000˜6,500 cm?1.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: February 8, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Gyu Choi, Bong Je Park, Hong Seok Seo, Doo Hee Cho, Kyong Hon Kim, Tae Hoon Lee, Jong Heo
  • Patent number: 6853888
    Abstract: A train control system and method uses signal information from a next block to change a restrictive signal in a block currently occupied by the train to a less restrictive signal if it can be ascertained that the condition causing the more restrictive signal has changed. This may be accomplished by receiving signal information from the next block while still in the current block and, if the signal information from the next block is no more restrictive than the signal information in the current block, and the signal in the current block is of a type that can safely be modified, allowing the train to operate as if the signal information for the current block were less restrictive than the actual, previously received signal information for the current block.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: February 8, 2005
    Assignee: Quantum Engineering Inc.
    Inventors: Mark Edward Kane, James Francis Shockley, Harrison Thomas Hickenlooper
  • Patent number: 6850823
    Abstract: A system for executing diagnosis of vehicle performance using satellite telemetry technology includes a diagnostic unit for compiling telemetry data, transmitted in real-time, of an engine and various parts of a vehicle, comparing the telemetry data with specific values of the engine and various parts to determine if there are any abnormalities in vehicle performance, and monitoring diagnostic results of vehicle performance; and a communications unit for performing communications in real-time through a network with an external user requesting vehicle performance diagnostic results of the diagnostic unit. Accordingly, the driver or external user may easily determine if there are abnormalities in vehicle performance, take steps to cope with vehicle malfunctions before they occur, and know the precise location of any abnormal areas of vehicle performance.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: February 1, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong-Won Eun, Seong-Pal Lee, Cheol-Oh Jeong, Jae-Woo Park, Cheon-Sig Sin, Moon-Hee You, Dae-In Park
  • Patent number: 6851025
    Abstract: A cache management system includes a main memory for storing instructions and information for identifying cache control instructions, a central processing unit (CPU) for executing the instructions, an instruction identifier for identifying that an instruction stored the main memory is a cache control instruction, a cache controller for predicting a next instruction to be executed by the CPU and for reading a corresponding program information in advance when the cache control instruction is identified by the instruction identifier, and a cache memory for storing executable instructions and data from the main memory and for supplying the executable instructions to the CPU under the control of the cache controller.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: February 1, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Soung Hwi Park
  • Patent number: 6849532
    Abstract: The present invention relates to a method of manufacturing a transistor in a semiconductor device. In order to increase an upper area of a gate electrode in which a silicide layer will be formed, an upper portion of the gate electrode consisting of the polysilicon layer is formed to be wider than a lower portion while maintaining the channel length. Therefore, a sheet resistance characteristic of the silicide layer and the uniformity of the sheet resistance can be improved to this improve an electrical characteristic of a device.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: February 1, 2005
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hyung Sik Kim
  • Patent number: D501930
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: February 15, 2005
    Assignee: Esencia Co., Ltd.
    Inventor: Choong-Sik Shin
  • Patent number: D502266
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: February 22, 2005
    Assignee: ESENCIA Co., Ltd.
    Inventor: Choong-Sik Shin