Patents by Inventor Yong Cheng

Yong Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040050212
    Abstract: A method of separating nickel, cobalt or both from other cations contained in a leach solution, the method including the steps of subjecting the leach solution to separate solvent extraction steps using an organophosphinic acid, a carboxylic acid and an organophosphinic acid.
    Type: Application
    Filed: September 17, 2003
    Publication date: March 18, 2004
    Inventors: Chu Yong Cheng, Martin Houchin
  • Patent number: 6664389
    Abstract: Highly resistant granular starches may be produced which have unique and useful properties, including high enzyme resistance, dietary fiber, a unique molecular weight distribution, a high melting temperature and a high heat of gelatinization (Delta H) indicative of excellent processing tolerance. These starches may be prepared for example by heating a high amylose starch having at least 40% by weight amylose content and at a percent moisture and temperature insufficient to destroy the granular nature of the starch, and digesting the amorphous regions using alpha-amylase or a chemical reagent.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: December 16, 2003
    Assignee: National Starch and Chemical Investment Holding Coporation
    Inventors: Yong-Cheng Shi, Roger Jeffcoat
  • Publication number: 20030219520
    Abstract: This patent pertains to a slowly digestible starch prepared by debranching low amylose starches, particularly by isoamylase. Such slowly digestible starches are useful in edible products, including nutritional supplements.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 27, 2003
    Inventors: Yong-Cheng Shi, Xiaoyuan Cui, Anne M. Birkett, Michael G. Thatcher
  • Publication number: 20030215561
    Abstract: This patent pertains to a resistant starch prepared by fully debranching a low amylose starch using isoamylase. Such resistant starch is useful in edible products, including nutritional supplements.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Inventors: Yong-Cheng Shi, Xiaoyuan Cui, Anne M. Birkett, Michael G. Thatcher
  • Publication number: 20030215562
    Abstract: This patent pertains to a slowly digestible starch prepared by debranching amylose-containing starches, particularly by pullulanase or isoamylase. Such slowly digestible starches are useful in edible products, including nutritional supplements.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Inventors: Yong-Cheng Shi, Xiaoyuan Cui, Anne M. Birkett, Michael G. Thatcher
  • Publication number: 20030215499
    Abstract: This patent pertains to a tablet comprising as a binder a low amylose starch, which has been fully debranched using isoamylase and the method of making such tablet. Such binders are useful in any tabletting method, including direct compression, and can be used as a replacement for microcrystalline cellulose.
    Type: Application
    Filed: November 18, 2002
    Publication date: November 20, 2003
    Inventors: Yong-Cheng Shi, Xiaoyuan Cui, Sibu Chakrabarti
  • Patent number: 6580741
    Abstract: An integrated optically pumped vertical cavity surface emitting laser (VCSEL) is formed by integrating an electrically pumped in-plane semiconductor laser and a vertical cavity surface emitting laser together with a beam steering element formed with the in-plane semiconductor laser. The in-plane semiconductor laser can be a number of different types of in-plane lasers including an edge emitting laser, an in-plane surface emitting laser, or a folded cavity surface emitting laser. The in-plane semiconductor laser optically pumps the VCSEL to cause it to lase. The in-plane semiconductor laser is designed to emit photons of relatively short wavelengths while the VCSEL is designed to emit photons of relatively long wavelengths. The in-plane semiconductor laser and the VCSEL can be coupled together in a number of ways including atomic bonding, wafer bonding, metal bonding, epoxy glue or other well know semiconductor bonding techniques. The beam steering element can be an optical grating or a mirrored surface.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: June 17, 2003
    Assignee: E2O Communications, Inc.
    Inventors: Wenbin Jiang, Hsing-Chung Lee, Yong Cheng
  • Publication number: 20030099744
    Abstract: The present invention relates to a method for glazing a food comprising applying a solution of a glaze base containing a converted starch to the food and drying the food; a process for preparing the starch; the starch prepared therefrom; and a glaze comprising the glaze bases thereof.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 29, 2003
    Inventors: Yong-Cheng Shi, Chung-Wai Chiu, David P. Huang, Danuta Janik
  • Publication number: 20030084545
    Abstract: A lightweight cement trowel handle with preferred tightness and safe grip, comprises a handle interlocked by aligning two shell-shaped bottom seat and top cover through high frequency pressure and sheathed by a soft TPR material as the external layer; wherein, the bottom seat and the upper cover not only have reinforcing ribs disposed on the inner sides, but also have clamp frames with several double diameter holes disposed in the front aspect; a ring seat is disposed at the distal end of the bottom seat; an insert end of the said top cover is forced into an insert slot of the ring seat for mutual alignment and interlock; a blade piece is clamped between the clamp frames of the handle, penetrated by a screw and fastened by a nut; thereby the said hexagon nut is fitly received and fixed inside the double diameter hole of the top cover.
    Type: Application
    Filed: November 2, 2001
    Publication date: May 8, 2003
    Inventor: Chun-Yong Cheng
  • Patent number: 6526088
    Abstract: The alignment-free solid laser of the invention is characterized in that, an orientation prism having three inner surfaces perpendicular to one another, a bottom of equilateral triangle or circle shape, a corner apex located on the axis of the active material is located in front of one end of the active material and is used as a total reflective mirror of the resonant cavity, the other end of the active material is coated with a transitive-reflective film and is used as an output mirror, such that a laser resonant cavity is formed. This alignment-free solid laser has a simple structure, strong ability of misalignment-resistance, high stability, improved beam quality and reduced damage. Besides, it is easy to be operated and is easy to be standardized and modularized. It can be extensively used in military, industrial processing, medical and scientific research fields.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 25, 2003
    Inventors: Yong Cheng, Huisheng Wang, Zhihuai Wang, Xiaobing Wang, Liangqing Han, Jiangbai Zhang
  • Publication number: 20030029588
    Abstract: The present invention relates to an environmentally friendly process for the selective oxidation of carbohydrates. The process comprises the addition of a hydroperoxide, including hydrogen peroxide, to a carbohydrate having primary alcohol groups, particularly including polysaccharides, wherein said carbohydrate is contact with a nitroxyl radical mediator and the process is catalyzed by a peroxidase enzyme in the presence of halide ions.
    Type: Application
    Filed: May 8, 2001
    Publication date: February 13, 2003
    Inventors: Xiaoyuan Cui, A. Levent Cimecioglu, Yong-Cheng Shi
  • Patent number: 6513199
    Abstract: A handle of a trowel, comprising a penetrating hole disposed longitudinally within, with one end rim thereof extending to form an arcuate bearing piece permitting a narrow rod of a blade to insert in the penetrating hole and to press against onto a concaved arc-plane on the front rim of the bearing piece, is characterized that the circumferential side of the penetrating hole of the handle is disposed longitudinally with a plurality of ribs to enable the inserted narrow rod at the distal end of the blade to have preferred tightness; a disposed sealing cover and the bearing piece have corresponding shapes, both interlock correspondingly by means of a concave and a convex fastening members to sheath and firmly seal the narrow rod of the blade.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: February 4, 2003
    Inventor: Chun-Yong Cheng
  • Publication number: 20030007538
    Abstract: An integrated optically pumped vertical cavity surface emitting laser (VCSEL) is formed by integrating an electrically pumped in-plane semiconductor laser and a vertical cavity surface emitting laser together with a beam steering element formed with the in-plane semiconductor laser. The in-plane semiconductor laser can be a number of different types of in-plane lasers including an edge emitting laser, an in-plane surface emitting laser, or a folded cavity surface emitting laser. The in-plane semiconductor laser optically pumps the VCSEL to cause it to lase. The in-plane semiconductor laser is designed to emit photons of relatively short wavelengths while the VCSEL is designed to emit photons of relatively long wavelengths. The in-plane semiconductor laser and the VCSEL can be coupled together in a number of ways including atomic bonding, wafer bonding, metal bonding, epoxy glue or other well know semiconductor bonding techniques. The beam steering element can be an optical grating or a mirrored surface.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 9, 2003
    Inventors: Wenbin Jiang, Hsing-Chung Lee, Yong Cheng
  • Publication number: 20020197373
    Abstract: This invention relates to a process for preparing cereal grain having increased dietary fiber and/or resistant starch content and the process tolerant grain prepared thereby. Further, this invention provides high amylose grain with unusually high dietary fiber and resistant starch content. In particular, this invention involves the preparation of the improved grain by a combination of moisture and temperature conditions and further to use of the grain in the preparation of products containing starch.
    Type: Application
    Filed: March 26, 2001
    Publication date: December 26, 2002
    Inventors: Yong-Cheng Shi, Yayun Liu
  • Patent number: 6424669
    Abstract: An integrated optically pumped vertical cavity surface emitting laser (VCSEL) is formed by integrating an electrically pumped in-plane semiconductor laser and a vertical cavity surface emitting laser together with a beam steering element formed with the in-plane semiconductor laser. The in-plane semiconductor laser can be a number of different types of in-plane lasers including an edge emitting laser, an in-plane surface emitting laser, or a folded cavity surface emitting laser. The in-plane semiconductor laser optically pumps the VCSEL to cause it to lase. The in-plane semiconductor laser is designed to emit photons of relatively short wavelengths while the VCSEL is designed to emit photons of relatively long wavelengths. The in-plane semiconductor laser and the VCSEL can be coupled together in a number of ways including atomic bonding, wafer bonding, metal bonding, epoxy glue or other well know semiconductor bonding techniques. The beam steering element can be an optical grating or a mirrored surface.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: July 23, 2002
    Assignee: E20 Communications, Inc.
    Inventors: Wenbin Jiang, Hsing-Chung Lee, Yong Cheng
  • Patent number: 6277186
    Abstract: The present invention is directed to a process of preparing thermally inhibited starches using the low molecular weight carbohydrates to improve the rate of inhibition. The resulting starch/low molecular weight carbohydrate blends have improved cold storage stability and may be used in a variety of products, particularly food products.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: August 21, 2001
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yong-Cheng Shi, Jennifer Goodall, Roger Jeffcoat
  • Patent number: 6096524
    Abstract: High solids maltodextrin syrups, some of which are useful as the base for remoistenable adhesives, are prepared by a high solids alpha amylase enzyme conversion process. They are characterized by their high solids content (at least 55 wt. %) and light color. A granular chemically derivatized, optionally converted, starch having a degree of substitution of greater than about 0.01 and less than about 0.5 is used as the starting material. The maltodextrins have a reducing sugar content of about 5-19 dextrose equivalent and a distinct polymodal molecular weight distribution. When a granular highly esterified starch (D.S. of 0.5-1.8) is used as the starting material in the high solids process, the resulting enzyme-converted, esterified maltodextrins are characterized by their improved water dispersibility.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 1, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yong-Cheng Shi, James L. Eden, James J. Kasica
  • Patent number: 6054302
    Abstract: A high solids, enzyme conversion process for preparing an enzyme-converted starch is carried out by adding to a modified or unmodified starch, preferably a granular starch, water and an enzyme in an amount sufficient to produce a single phase powdered mixture without a visible free water phase. The enzyme is activated by heating while maintaining a substantially constant moisture content in the mixture. The enzyme converted starch is recovered as a syrup, a granular converted starch, or mixtures thereof, or as a powder obtained by drying the syrup.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: April 25, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yong-Cheng Shi, James L. Eden, James J. Kasica, Roger Jeffcoat
  • Patent number: 5932639
    Abstract: The present invention is directed to remoistenable and non-remoistenable adhesives which contain at least about 50 wt % of a maltodextrin syrup having a reducing sugar content of about 5-19 dextrose equivalent and solids content of about 60-80 % water, and an effective amount of other conventional adhesive additives. When the adhesive is a remoistenable adhesive, a chemically derivatized starch having an amylose content of 40 % or less and a D.S. of about 0.01 to less than about 0.50 is used. A preferred remoistenable adhesive also contains polyvinyl acetate and/or ethylene vinyl acetate in an amount from about 15-90 wt. % The maltodextrin syrup is prepared from a converted or a non-converted, chemically derivatized or underivatized granular starch, by a high solids, single phase enzyme conversion process. When derivatized, the maltodextrin has (i) substituents in an amount sufficient to provide a degree of substitution between greater than about 0.01 and less than about 0.50.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 3, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: James L. Eden, Yong-Cheng Shi, Russell J. Nesiewicz, Joseph Wieczorek, Jr.
  • Patent number: 5907422
    Abstract: An optical receiver communication system converts optical signals modulated by analog or digital waveforms to RF signals. The optical receiver contains an automatic level control circuit to adjust the electronic gain of the system across a broad bandwidth spectrum. Two impedance matching circuits are designed using broad band matching technique to expand the bandwidth for increasing the maximum receivable frequencies to 1 GHz. A RLC impedance matching circuit forms a resonant combination to maintain .+-.1 dB fluctuation between the low-and-high-frequency limits of the bandwidth, and a 75.OMEGA. impedance matching circuit creates a 180.degree. phase shift between outgoing and incoming signals to ensure low return loss.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: May 25, 1999
    Assignee: Qualop Systems Corp.
    Inventors: Ching Ho, Yue-Syan Jou, Chun-Meng Su, Peter Wang, Yong Cheng Tu