Patents by Inventor Chun Zhang

Chun Zhang 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: 20030064976
    Abstract: The present invention provides certain alpha-amino acids and derivatives thereof, such as, but not limited to, esters, amides and salts. The present invention also provides a novel method for the synthesis of alpha-amino acids and derivatives thereof.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 3, 2003
    Inventors: Sekar Alla, Seung-Yong Choi, Dale Dhanoa, Elso DiFranco, Galina Krokhina, Keqiang Li, Thiagarajan Balasubramanian, Wen-Chun Zhang
  • Patent number: 6532799
    Abstract: A system for in-situ and on-line monitoring of a preform layup process for liquid composite molding allows for gathering of permeability measurements of a fabric preform for use in a liquid composite molding process after situation of the preform within the mold wherein the molding process is to occur. The system uses a plurality of pressure sensors located within one of the mold sections of the liquid composite molding process mold. The sensors take pressure measurements which are processed to obtain a permeability profile of the preform. From such data, any local permeability variations that are caused from defects in the preform, deformation of the preform, or from mold misfit can be noted and acted upon before resin flow. The system is relatively simple to use and is easy to implement.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: March 18, 2003
    Assignee: Florida State University Research Foundation
    Inventors: Chun Zhang, Zhiyong Liang, Ben Wang, Chiang Shih
  • Patent number: 6437558
    Abstract: Passive solid-state magnetic sensors are based on the combination of magnetorestrictive materials and piezoelectric materials. Sensors have applications in motor speed detection, magnetic field detection, read heads, and MRAM, for example.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: August 20, 2002
    Assignee: Spinix Corporation
    Inventors: Yi-Qun Li, Robert C. O'Handley, Gerald F. Dionne, Chun Zhang
  • Publication number: 20020046596
    Abstract: A system for in-situ and on-line monitoring of a preform layup process for liquid composite molding allows for gathering of permeability measurements of a fabric preform for use in a liquid composite molding process after situation of the preform within the mold wherein the molding process is to occur. The system uses a plurality of pressure sensors located within one of the mold sections of the liquid composite molding process mold. The sensors take pressure measurements which are processed to obtain a permeability profile of the preform. From such data, any local permeability variations that are caused from defects in the preform, deformation of the preform, or from mold misfit can be noted and acted upon before resin flow. The system is relatively simple to use and is easy to implement.
    Type: Application
    Filed: January 18, 2001
    Publication date: April 25, 2002
    Inventors: Chun Zhang, Zhiyong Liang, Ben Wang, Chiang Shih
  • Publication number: 20020022608
    Abstract: A method of treating multiple sclerosis is disclosed. In one embodiment, the method comprises the step of treating a multiple sclerosis patient with a tetracycline derivative, wherein the multiple sclerosis symptoms of the patient are diminished.
    Type: Application
    Filed: May 3, 2001
    Publication date: February 21, 2002
    Inventors: Ian D. Duncan, Su-Chun Zhang
  • Publication number: 20010040450
    Abstract: Passive solid-state magnetic sensors are based on the combination of magnetorestrictive materials and piezoelectric materials. Sensors have applications in rotor speed detection, magnetic field detection, read heads, and MRAM, for example.
    Type: Application
    Filed: March 16, 2001
    Publication date: November 15, 2001
    Applicant: Spinix Corporation
    Inventors: Yi-Qun Li, Robert C. O'Handley, Gerald F. Dionne, Chun Zhang
  • Patent number: 6279406
    Abstract: Passive solid-state magnetic sensors are based on the combination of magnetorestrictive materials and piezoelectric materials. Sensors have applications in rotor speed detection, magnetic field detection, read heads, and MRAM, for example.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: August 28, 2001
    Inventors: Yi-Qun Li, Robert C. O'Handley, Gerald F. Dionne, Chun Zhang
  • Patent number: 5939013
    Abstract: An apparatus for use in the production of fiber reinforced polymer composite structures includes a mold having a mold surface and a fiber construction on the mold surface including at least one layer of resin absorbing fibrous lay up material. A stiffener on the fiber construction is constructed of a resin absorbing material. A flexible, resin impervious vacuum bag lays over the mold surface and is marginally sealed to the mold surface to define an enclosure for the fiber construction and stiffener. The vacuum bag has a resin inlet to permit introduction of a resin into the enclosure. A vacuum is drawn upon the enclosure to draw the vacuum bag against the fiber construction and stiffener. The stiffener spaces the vacuum bag from the fiber construction when the vacuum bag is drawn against the fiber construction and stiffener to facilitate the distribution of resin uniformly throughout the fiber construction. The stiffener is integrated with the fiber construction upon curing of the resin.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: August 17, 1999
    Assignee: Florida State University
    Inventors: Kerang Han, Chun Zhang, H. P Ben Wang