Patents by Inventor Z. Wang

Z. Wang 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).

  • Patent number: 7001151
    Abstract: A tip cap for a turbine blade. The tip cap may include a HS-188 sheet material with a thickness of less than about 0.079 inches (about 2 millimeters) and a number of holes positioned in the sheet material.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: February 21, 2006
    Assignee: General Electric Company
    Inventors: John Z. Wang, Mark J. Bailey, Robert R. Berry, Emilio Fernandez
  • Publication number: 20050014905
    Abstract: Polyolefin/clay nanocomposites with an exfoliated structure are prepared by a process which employs a specific chain end functionalized polyolefin that serves as the clay/polyolefin interfacial compatibilizer (or polymeric surfactant). The polyolefin contains a hydrophilic terminal functional group and an unperturbed hydrophobic high molecular weight polymer chain. The reaction may be carried out in a melt or solution process. Also disclosed are materials made by the process. Also disclosed are materials made by the process.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 20, 2005
    Inventors: T. Chung, E. Manias, Z. Wang
  • Patent number: 6815056
    Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: November 9, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang
  • Publication number: 20040094287
    Abstract: A core for a shell die used in casting a turbine bucket includes an elongated body shaped to create internal cooling passages in the bucket, the elongated body formed with at least one core support pin extending transversely of the elongated body and adapted to fix the core inside the shell die, at least one core support pin having an elliptical shape in cross-section. The invention also relates to a cast turbine bucket with at least one exit hole formed therein during casting. The exit hole and a plug for closing the hole are elliptical in cross-section.
    Type: Application
    Filed: August 19, 2003
    Publication date: May 20, 2004
    Applicant: General Electric Company
    Inventor: John Z. Wang
  • Publication number: 20040006601
    Abstract: An optimized persistent messaging method and system repeatedly attempts delivery of a message by alternate delivery services that are capable of delivering a message if delivery by an initial delivery service fails, until either delivery is successful or else attempted delivery by all the delivery services has failed. The optimized persistent messaging method and system also prioritizes delivery services that are capable of delivering a message according to prioritization criteria from a variety of possible sources. The optimized persistent messaging method and system repeatedly attempts delivery beginning with the highest ranked delivery service and descending down a prioritized list of delivery services, until either delivery is successful or else attempted delivery by all the delivery services has failed.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 8, 2004
    Inventors: David B. Bernstein, Jerry Z. Wang, Jian Wang, David R. Coelho
  • Publication number: 20030198280
    Abstract: The frequency hopping adaptation algorithm is an interference avoidance algorithm allowed by the U.S. FCC for ISM band spread spectrum systems. The frequency hopping adaptation algorithm is designed for ISM band frequency hopping systems such as IEEE 802.11 FH, HomeRF 2.0 (including wide band frequency hopping), Bluetooth and other frequency hopping systems.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Inventors: John Z. Wang, Dawn W. Close
  • Patent number: 6633817
    Abstract: A method and system for generating and searching a tree-structured index of window vectors that represent database sequences comprise a window vector generation module, a tree-structured index generation module, a query sequence partitioning module, and a retrieval component. The window vector generation module partitions a database sequence into a plurality of overlapping windows. Each window has a fixed length W comprising a fixed number of nucleotides, and the offset among windows is determined by a parameter &Dgr;. The window vector generation module then maps each database sequence window into a window vector. The database sequence window vector indicates the frequency of appearance of each k-tuple in the corresponding database sequence window. The tree-structured index generation module then generates a tree-structured index using the database sequence window vectors.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: October 14, 2003
    Assignee: Incyte Genomics, Inc.
    Inventors: Michael G. Walker, James Z. Wang, Eldar Y. Giladi
  • Publication number: 20030143469
    Abstract: A mask useable to direct an electron beam having a cone side and a grade side. The cone side includes a plurality of troughs that extend partially into the mask but do not extend to the grade side. Apertures are formed in the bottoms of the troughs that extend through to the grade side. The apertures are separated by both actual and virtual tie bars. In a preferred embodiment, some of the virtual tie bars extend from the grade side, through the trough to the cone side. The occurrence of these cone side virtual tie bars varies in concentration across the extent of the mask such that the concentration is heavy in areas where clipping is desired, and light in areas where clipping is not desired. In another preferred embodiment, the size, shape and location of the cone side virtual tie bars vary across the extent of the mask to accommodate for the angle of the electron beam travel and the necessity for localized clipping.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 31, 2003
    Inventors: Thomas R. Sage, Lance M. Benjamin, Jeffrey Z. Wang, Leo B. Kriksunov
  • Publication number: 20030069264
    Abstract: This invention is concerned with a method of determining the risk of a urologic event, particularly an event selected from BPH-related surgery and acute urinary retention in a man by measuring the man's serum PSA level. The present invention also provides for a method of reducing the risk of the urologic event in a man determined to be at risk by the present urologic event risk-determining method by administration to the man of a compound which inhibits 5&agr;-reductase. Also provided is a kit for determining the risk of a urologic event.
    Type: Application
    Filed: September 2, 1999
    Publication date: April 10, 2003
    Inventors: ELIZABETH STONER, DANIEL Z. WANG, JOANNE WALDSTREICHER
  • Publication number: 20030022020
    Abstract: The present invention includes methods for fabricating polymer light emitting devices by screen-printing. These light emitting devices use silver paste as the top electrode, eliminating the use of evaporated low work function metal. This is made possible by the presence of a buffer layer such as the sulfonated polyaniline layer in the structure of SCALE devices. These devices allow a very inexpensive and fast means to form stable top electrodes for large-scale polymer light emitting device fabrication.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 30, 2003
    Applicant: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Z. Wang
  • Publication number: 20030021972
    Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.
    Type: Application
    Filed: September 23, 2002
    Publication date: January 30, 2003
    Inventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang
  • Publication number: 20020155265
    Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.
    Type: Application
    Filed: February 19, 1998
    Publication date: October 24, 2002
    Inventors: HYUNG-CHUL CHOI, ROBERT L. JONES, PRADNYA V NAGARKAR, WILLIAM K SMYTH, XIAOJIA Z WANG, YEE HO CHIA
  • Patent number: 6464822
    Abstract: An antireflection coating includes one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: October 15, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang, Yee Ho Chia
  • Patent number: 6268377
    Abstract: The present invention provides for the combined use of 5&agr;-reductase inhibitors together with calcium channel blockers for the treatment of benign prostatic hyperplasia (BPH), prostate cancer, prostatitis, hematuria, and other androgen related disorders, including prostatitis and the prevention of prostate cancer. This invention provides a method of treatment which is useful in the treatment of benign prostatic hyperplasia, prostatitis, and/or the prevention and treatment of prostatic cancer, as well as in the treatment of prostatitis and hematuria. This invention also provides a pharmaceutical composition which is useful in the treatment of benign prostatic hyperplasia, prostatitis, hematuria and/or the prevention and treatment of prostatic cancer, wherein the pharmaceutical composition comprises the combination of a 5&agr;-reductase inhibitor and a calcium channel blocking agent.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: July 31, 2001
    Assignee: Merck & Co., Inc.
    Inventors: Joanne Waldstreicher, Daniel Z. Wang
  • Patent number: 6132870
    Abstract: A composite including an elastomer of low unsaturation, a coated reinforcing fiber, an adhesive composition that bonds the elastomer to the coated reinforcing fiber including a halogenated polyolefin, a nitroso compound, a maleimide, the maleimide present in an amount of at least 50% by weight of the halogenated polyolefin.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: October 17, 2000
    Assignee: Lord Corporation
    Inventors: James R. Halladay, Douglas H. Mowrey, Michael Z. Wang
  • Patent number: 5942335
    Abstract: An ink jet recording sheet comprises a support carrying an ink-receiving layer, this layer comprising a hydrophilic polymer, preferably poly(vinyl alcohol) and a poly(vinylpyridine). The images formed using this sheet display good water fastness.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 24, 1999
    Assignee: Polaroid Corporation
    Inventors: Yung T. Chen, Gerald P. Harwood, Jr., Shawn P. Lambert, Kenneth J. McCarthy, Richard J. Murphy, Michael S. Viola, Xiaojia Z. Wang
  • Patent number: 5861230
    Abstract: There is described a novel process of polymerizing 4-vinyl pyridine monomer in an aqueous polymerization system which comprises preparing an aqueous solution of polyvinyl alcohol, and contacting said aqueous solution of a polyvinyl alcohol with less than about 10% by weight of 4-vinyl pyridine monomer and a water-soluble initiator capable of decomposing to give free radicals.The resultant dispersion of the novel polymerization process comprises a homogeneous, i.e., weight average molecular weight and particle size, poly-4-vinylpyridine, with no appreciable residual 4-vinyl pyridine monomer.The resultant dispersion may be used to coat image- and ink-receiving layers of image-recording materials and ink jet recording sheets, respectively.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: January 19, 1999
    Assignee: Polaroid Corporation
    Inventors: Shawn P. Lambert, Xiaojia Z. Wang
  • Patent number: 5824584
    Abstract: A non-volatile memory having a control gate (14) and a sidewall select gate (28) is illustrated. The sidewall select gate (28) is formed in conjunction with a semiconductor doped oxide (20) to form a non-volatile memory cell (7). The semiconductor element used to dope the oxide layer (20) will generally include silicon or germanium. The non-volatile memory cell (7) is programmed by storing electrons in the doped oxide (20), and is erased using band-to-band tunneling.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: October 20, 1998
    Assignee: Motorola, Inc.
    Inventors: Wei-Ming Chen, Lee Z. Wang, Kuo-Tung Chang, Craig Swift
  • Patent number: 5636050
    Abstract: An optical streak camera includes an optical collimator, an all optical deflector, a detector and a display.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: June 3, 1997
    Assignee: Research Foundation of City College of New York
    Inventors: Robert R. Alfano, Ping-Pei Ho, Lina Yang, Quan Z. Wang
  • Patent number: 5574517
    Abstract: A visual aid for individuals with color vision deficiencies comprises a pair of optical elements shaped to be placed in front of an individual's eyes. An interference coating is applied to one surface of each element, preferably the back surface. The interference coating comprises a stack of dielectric film of selected structure. The stack of interference films is structured to give the optical elements pre-selected spectral transmission curves. An anti-reflection coating may be applied to the front surface of each element.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: November 12, 1996
    Assignee: Top One Optic Technology Inc.
    Inventors: Francis K. W. Pang, Andrew K. T. Pang, Jia Z. Wang, Shu Y. Zheng