Patents by Inventor Kejun Fan

Kejun Fan 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).

  • REAGENT FOR LATEX AGGREGATION REACTION AND METHOD FOR DETECTING TARGET SUBSTANCE
    Publication number: 20090029483
    Abstract: A reagent for latex aggregation reaction contains water-soluble polymer having a repeating unit presented by the following formula (1): wherein R1 and R2 each independently represents a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Applicant: JSR CORPORATION
    Inventors: Kejun FAN, Kouji Tamori
  • Process for producing particles for diagnostic reagent
    Patent number: 7282540
    Abstract: A process of producing particles for diagnostic reagent, including forming a matrix particle by mixing a nuclear particle having a CV value of 20% or less and a magnetic substance containing at least one of Fe2O3 and Fe3O4 and giving a shear force to the mixture to adsorb the magnetic substance on the surface of the nuclear particles; and polymerizing a polymerizable monomer in the presence of said matrix particle to form a polymer layer on the magnetic substance layer.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: October 16, 2007
    Assignee: JSR Corporation
    Inventors: Ichirou Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
  • Process for producing particles for diagnostic reagent
    Publication number: 20050065288
    Abstract: A process of producing particles for diagnostic reagent, including forming a matrix particle by mixing a nuclear particle having a CV value of 20% or less and a magnetic substance containing at least one of Fe2O3 and Fe3O4 and giving a shear force to the mixture to adsorb the magnetic substance on the surface of the nuclear particles; and polymerizing a polymerizable monomer in the presence of said matrix particle to form a polymer layer on the magnetic substance layer.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 24, 2005
    Applicant: JSR CORPORATION
    Inventors: Ichirou Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
  • Process for producing particles for diagnostic reagent
    Patent number: 6797782
    Abstract: A process of producing particles for diagnostic reagent, including a step of polymerizing a polymerizable monomer in the presence of a matrix particle having a magnetic substance layer containing at least one of Fe2O3 and Fe3O4 on the surface thereof and having a mean particle size of 0.4-200 &mgr;m to form a polymer layer on the magnetic substance layer.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 28, 2004
    Assignee: JSR Corporation
    Inventors: Ichiro Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
  • Nucleic acid-separating method and nucleic acid-extracting reagent
    Publication number: 20040029166
    Abstract: A method for purifying nucleic acids wherein objective nucleic acids are separated through solid-liquid separation by deposition of the nucleic acids onto a solid-phase carrier, via enzymatic treatment of a cell lysis solution, from a sample containing nucleated cells and the like, as well as a kit for carrying out the method.
    Type: Application
    Filed: July 28, 2003
    Publication date: February 12, 2004
    Applicant: JSR CORPORATION
    Inventor: Kejun Fan
  • Process for producing particles for diagnostic reagent
    Publication number: 20030181606
    Abstract: A process of producing particles for diagnostic reagent, including a step of polymerizing a polymerizable monomer in the presence of a matrix particle having a magnetic substance layer containing at least one of Fe2O3 and Fe3O4 on the surface thereof and having a mean particle size of 0.4-200 &mgr;m to form a polymer layer on the magnetic substance layer.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 25, 2003
    Applicant: JSR CORPORATION
    Inventors: Ichiro Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata