Patents by Inventor Yoko Yoshikawa

Yoko Yoshikawa 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).

  • Fluorescent group-containing carbodiimide compound precursor, fluorescent group-containing carbodiimide compound and methods for producing them
    Patent number: 7176330
    Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: February 13, 2007
    Assignee: Nisshingo Industries, Inc.
    Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
  • Method of detecting a nucleic acid using a fluorescent group-containing carbodiimide as a label
    Patent number: 7135293
    Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: November 14, 2006
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
  • Fluorescent group-containing carbodiimide compound precursor, fluorescent group-containing carbodiimide compound and methods for producing them
    Publication number: 20040059111
    Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 25, 2004
    Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
  • Fluorescent group-containing carbodiimide compound precursor, fluorescent group-containing carbodiimide compound and methods for producing them
    Publication number: 20040049047
    Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 11, 2004
    Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
  • Fluorescent group-containing carbodiimide compound precursor, fluorescent group-containing carbodiimide compound and methods for producing them
    Patent number: 6642380
    Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: November 4, 2003
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa