Weihua Wang
Weihua Wang, Baton Rouge, LA US
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20080261315 | Colorimetric and Fluorometric Determination of Homocysteine and Cysteine - Colorimetric and fluorometric methods are disclosed for the rapid, accurate, selective, and inexpensive detection of homocysteine, or of homocysteine and cysteine, or of cysteine. The methods may be employed with materials that are readily available commercially. The novel methods are selective for homocysteine, for cysteine, or for total homocysteine and cysteine, and do not cross-react substantially with chemically-related species such as glutathione. The homocysteine-selective method does not have substantial cross-reactivity to the very closely related species cysteine. The cysteine-selective method does not have substantial cross-reactivity to the very closely related species homocysteine. The methods may be used, for example, in a direct assay of human blood plasma for homocysteine levels. | 10-23-2008 |
20100291689 | Lanthanide Complexes as Fluorescent Indicators for Neutral Sugars and Cancer Diagnosis - A group of water-soluble salophene-lanthanide complexes and other salophene-metal complexes are useful for purposes including: (i) detecting neutral carbohydrates at physiologically-relevant pH, (ii) the selective detection of gangliosides, and (iii) the selective detection of lysophosphatidic acid (LPA) in the presence of phosphatidic acid. The selective detection of LPA is useful in diagnosing ovarian and other cancers. | 11-18-2010 |
Weihua Wang, Aurora, IL US
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20100118139 | Portable Device to Detect the Spin of Table Tennis Ball - A portable device to detect the spin of table tennis ball is invented. The device helps a user to figure out the spin of a coming table tennis ball during a table tennis game. It is composed of a camera lens to acquire sequential images, an image processing chip to extract features of the table tennis ball and to calculate the direction and strength of the spin, and a mechanism to inform the user about the spin through certain methods. | 05-13-2010 |
Weihua Wang US
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20090009423 | Variable size electronic display based on slide-out and slide-in mechanism - The size of an electronic display is increased when display panels are slide-out from a stack beneath the top display panel. The slide-out display panels and the top display panel form one larger rigid and smooth display. The slide-out display panels can be slide back into the stack under the top display panel. A device bearing the above display works with different sizes of the display (caused by display panels slide-out and slide-in). Display panels not slide-out may not have power in order to save energy. | 01-08-2009 |
20090135132 | Electronic display system to show large size visual content on a small size display device - A portable display system for an electronic device is invented, which consists of a portable display and a pair of eye glasses. The size of the display is small for easy carrying, for example, the display can fit in to a hand. The resolution of the display is changeable, for example, it can be lower than one hundred by one hundred for normal cell phone usage. It can be as high as thousands by thousands to show HDTV, movie, and web browsing. When the display is in its low resolution mode, naked eyes can see the display content without problem. When the display is in its high resolution mode, the pair of glasses, which enlarges the display content a few times, is needed. There may be, depending of application, multiple resolution modes between the lowest and the highest. | 05-28-2009 |
20100012003 | Safes without weak parts - The security class or burglary resistant capability of a safe is determined by the safe's weakest parts: combinations lock, key lock, keyboard, LCD screen, card reader, fingerprint scanner, etc (referred as weak parts below). The results of an attack to the safe include opening safe door, digging holes on safe door or body, or dysfunction of the above weak parts. The corresponding consequences are: Objects deposited inside the safe are stolen or destroyed. Even if those objects stay intact, the safe owner is no longer able to operate the safe. A new design method about safe is disclosed in this invention. The new safe has no weak parts on its surface. It's obvious that weak parts are easier to destroy than safe door and body, which is why they are called weak parts. For safes without weak parts on their surface, these weak parts (in user's hand or inside safe) are not so easy to be attacked on. The GSA class or UL Certification is improved for the new safe. Users will find the new safe is more secure and convenient to use. The design method applies to other security containers and doors. | 01-21-2010 |
Weihua Wang, Fremont, CA US
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20090212021 | COMPOSITIONS AND METHODS FOR SELECTIVE REMOVAL OF METAL OR METAL ALLOY AFTER METAL SILICIDE FORMATION - An aqueous metal etching composition useful for removal of metals such as nickel, cobalt, titanium, tungsten, and alloys thereof, after formation of metal silicides via rapid thermal annealing during complementary metal-oxide-semiconductor (CMOS) transistor fabrication. The aqueous metal etching composition is also useful for selective removal of metal silicides and/or metal nitrides for wafer re-work. In one formulation, the aqueous metal etching composition contains oxalic acid, and a chloride-containing compound, and in other formulations, the composition contains an oxidizer, such as hydrogen peroxide, and a fluoride source, e.g., borofluoric acid. The composition in another specific formulation contains borofluoric acid and boric acid for effective etching of nickel, cobalt, titanium, tungsten, metal alloys, metal silicides and metal nitrides, without attacking the dielectric and the substrate. | 08-27-2009 |
20090215659 | COMPOSITION USEFUL FOR REMOVAL OF POST-ETCH PHOTORESIST AND BOTTOM ANTI-REFLECTION COATINGS - An aqueous-based composition and process for removing hardened photoresist and/or bottom anti-reflective coating (BARC) material from a microelectronic device having same thereon. The aqueous-based composition includes at least one chaotropic solute, at least one alkaline base, and deionized water. The composition achieves high-efficiency removal of hardened photoresist and/or BARC material in the manufacture of integrated circuitry without adverse effect to metal species on the substrate, such as copper, and without damage to low-k dielectric materials employed in the microelectronic device architecture. | 08-27-2009 |
Weihua Wang, San Jose, CA US
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20090116152 | MULTILAYER STITCHED YOKE FOR A HIGH DATA RATE PERPENDICULAR WRITE HEAD - A magnetic write head for perpendicular magnetic data recording having a write pole that is sandwiched between first and second magnetic shaping layers. The split shaping layers allow a laminated shaping layer structure allows a manufacturable laminated shaping layer to be constructed for improved data rate. One of the magnetic shaping layers can be formed as a laminated structure while that other can be a single layer of electroplated magnetic material. The shaping layers can be separated from the write pole by a thin layer of non-magnetic material to form a laminated interface between the write pole and the shaping layers. These features reduce magnetic domains and also reduce eddy currents which advantageously improves data rate. | 05-07-2009 |
Weihua Wang, Qingdao CN
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20130059350 | CONSTRUCTS AND METHODS FOR INCREASING YIELD OF FATTY ALCOHOLS IN CYANOBACTERIA - A construct containing a gene operably linked to a promoter having activity in cyanobacteria, and vector and cyanobacterium comprising such construct for increasing the yield of fatty alcohols in cyanobacterium is provided. | 03-07-2013 |
Weihua Wang, Shanghai CN
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20140160809 | SYSTEMS AND METHODS FOR PEAK CURRENT ADJUSTMENTS IN POWER CONVERSION SYSTEMS - System and method for regulating an output of a power conversion system. An example system controller includes a signal generator and a modulation and drive component. The signal generator is configured to receive at least a first signal indicating a magnitude of an input voltage received by a primary winding of a power conversion system and receive a second signal indicating a magnitude of a primary current flowing through the primary winding, and generate a third signal. The modulation and drive component is configured to receive at least the third signal, generate a drive signal based on at least information associated with the third signal, and output the drive signal to a switch to affect the primary current. | 06-12-2014 |
20140250360 | Visual merge utility - A system and method include receiving multiple modified versions of a parent document, wherein the parent document and each of the modified versions contain code to display or define underlying information therein. The system and method also include comparing each of the multiple modified versions to the parent document to determine changes made to resulting information of the parent document by modified versions, and displaying to a user the changes made to the resulting information in an end-user type display. | 09-04-2014 |