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Hyun Jong Shin Patents
Inventor:
Shin; Hyun Jong
Address:
Gwangju, KR
No. of patents:
17
Patents:




Patent Number Title Of Patent Date Issued
7365228 Method for producing unsaturated fatty acids April 29, 2008
Disclosed is a method for producing unsaturated fatty acids from unsaturated aldehydes by means of fixed-bed catalytic partial oxidation in a shell-and-tube reactor, characterized in that the reactor includes a reaction zone for producing unsaturated fatty acids, the reaction zone ha
7341974 Method for preparing a catalyst for partial oxidation of propylene March 11, 2008
The present invention relates to a method for preparing a catalyst for partial oxidation of propylene, particularly a method for preparing a catalyst for preparing an acrylic acid, using an organic acid such as a citric acid, maleic acid and oxalic acid. The complex oxide catalyst ac
7326389 Method of producing unsaturated aldehyde and/or unsaturated acid February 5, 2008
Disclosed is a shell-and-tube reactor that may be used in a method for producing unsaturated aldehydes and/or unsaturated acids from olefins by means of fixed-bed catalytic partial oxidation. The reactor includes at least one reaction zone of a first-step reaction zone for producing
7305470 Method for displaying web user's authentication status in a distributed single login network December 4, 2007
The invention provides a system and method for automatically displaying a user's logged-in status across an Internet based network of affiliated Web sites via a visual indicator such as a toolbar to help the user to be certain about his logged-in status when he stays with one or switches
7285514 Method for preparing catalyst for partial oxidation of acrolein October 23, 2007
The present invention relates to a method for preparing a catalyst for partial oxidation of acrolein, particularly to a method for preparing a catalyst for partial oxidation of acrolein that has a superior acrolein conversion rate, acrylic acid activity, selectivity, and yield, by in
7265250 Method of producing unsaturated aldehyde and/or unsaturated fatty acid September 4, 2007
Disclosed is a method for producing unsaturated aldehydes or unsaturated fatty acids from at least one compound selected from the group consisting of propylene, propane, (meth)acrolein, isobutylene, t-butyl alcohol, methyl-t-butyl ether and o-xylene by means of fixed-bed catalytic partia
6344877 Image sensor with dummy pixel or dummy pixel array February 5, 2002
Disclosed is an image sensor including one or more dummy pixels that produce a reference signal which is used to compensate for errors within the devices of the main pixel cells. In one embodiment, at least one dummy pixel is used in conjunction with other circuitry to correct for no
6275259 Digital automatic gain control circuit for image system August 14, 2001
The present invention relates to an automatic gain control circuit in which the automatic gain control function is performed entirely in the digital domain. In an illustrative embodiment, the digital automatic gain control circuit for an image sensor having associated therewith an analog
6115066 Image sensor with direct digital correlated sampling September 5, 2000
A CMOS image sensor is provided in which correlated double sampling is performed entirely in the digital domain. In an exemplary embodiment, the image sensor includes a plurality of imager cells arranged in rows and columns, where the imager cells of a particular column are coupled to a
6046230 Stable injection formulation containing paclitaxel April 4, 2000
This invention relates to a stable injection paclitaxel formulation having polyoxyethylene sorbitol oleic polyester as a main solubilizer, and appears to have less toxicity and greater stability compared to polyethoxylated castor oil-containing formulation which is clinically used al
5920274 Image sensor employing non-uniform A/D conversion July 6, 1999
Disclosed is an image sensor having A/D conversion circuitry coupled to column data lines of an image sensor array. The A/D conversion circuitry digitizes analog signals on the column data lines, each representing intensity of light incident upon an active imager cell. Higher resolution
5898168 Image sensor pixel circuit April 27, 1999
Disclosed is an image sensing device having a reduced number of transistors within each imager cell as compared to prior art devices. Each imager cell includes a photosensitive element providing a photocharge responsive to incoming light, and first, second and third transistors. The firs
5877715 Correlated double sampling with up/down counter March 2, 1999
Disclosed is a circuit for performing correlated double sampling entirely in the digital domain. In an exemplary embodiment, the circuit includes a plurality of comparators, each having a first input coupled to an associated data line for receiving first and second signals in first and
5872733 Ramp-up rate control circuit for flash memory charge pump February 16, 1999
An apparatus for controlling the ramp-up rate of a charge pump having an output providing an output voltage and an output current. In one embodiment, the apparatus comprises a current bleeder circuit having an input, an output adapted for connection to ground potential and at least o
5736891 Discharge circuit in a semiconductor memory April 7, 1998
A discharge circuit for a semiconductor memory includes a first node, a second node for receiving a control signal having first and second states, and a circuit connected between the first node and ground potential and to the second node. The circuit couples the first node to ground pote
5721485 High performance on-chip voltage regulator designs February 24, 1998
High performance on-chip voltage regulator designs are disclosed which have settling times which are fast enough to meet today's microprocessor/microcontroller requirements when they are entering an active mode from a passive mode. A first preferred embodiment provides a circuit in w
5703532 Fully differential self-biased signal receiver December 30, 1997
A self-biased, fully differential, complementary receiver apparatus and method is presented. The receiver accepts differential inputs that can vary over the full rail-to-rail common mode voltage range. It produces double-ended complementary outputs swinging rail-to-rail useful in signal


 
 
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