Patents by Inventor Eiichi Shoji

Eiichi Shoji 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: 8029654
    Abstract: An object of the present invention is to provide a complex material in which an ion conduction film is curved and deformed when a potential difference is applied, which is operated at small electric power, has a large deformation amount, quick response performances, large degree of freedom in shape, and is easy in control of deformation, while having strength and durability necessary for practical use and being excellent in an economical aspect. A conductive cloth (preferably having stretchability), which is made conductive through plating of metal on a cloth or metal complex implantation, is joined as an electrode to both surfaces of the ion conduction film (the film in which an ion exchange film or ion liquid is immersed) made of a fluororesin and the like. When the potential difference is applied, the ion conduction film is deformed.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: October 4, 2011
    Assignee: Seiren Co., Ltd.
    Inventors: Susumu Takagi, Masakazu Nomura, Eiichi Shoji, Kazuyuki Murase
  • Publication number: 20070209915
    Abstract: An object of the present invention is to provide a complex material in which an ion conduction film is curved and deformed when a potential difference is applied, which is operated at small electric power, has a large deformation amount, quick response performances, large degree of freedom in shape, and is easy in control of deformation, while having strength and durability necessary for practical use and being excellent in an economical aspect. A conductive cloth (preferably having stretchability), which is made conductive through plating of metal on a cloth or metal complex implantation, is joined as an electrode to both surfaces of the ion conduction film (the film in which an ion exchange film or ion liquid is immersed) made of a fluororesin and the like. When the potential difference is applied, the ion conduction film is deformed.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 13, 2007
    Inventors: Susumu Takagi, Masakazu Nomura, Eiichi Shoji, Kazuyuki Murase
  • Patent number: 6797152
    Abstract: Sensor systems and sensing methods for detecting one or more analytes in a fluid. A sensor includes a polymer capable of undergoing a proton-coupled redox reaction. The polymer includes a plurality of reactive substituents capable of undergoing a reaction with an analyte. Upon exposure of the sensor to a fluid containing the analyte, a response is detected based on a change in the pKa of the polymer.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: September 28, 2004
    Assignee: California Institute of Technology
    Inventors: Michael S. Freund, Eiichi Shoji
  • Patent number: 6737504
    Abstract: A method for preparing a wide range of substituted poly(aniline)s from a single precursor is described. The method uses a variety of reactions, including a boron activation/electrophilic displacement reaction resulting in ipso-substitution. The ability to tune the properties of poly(aniline) through the generation of new structures is useful in numerous fields ranging from polymer-based electronics to sensors.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: May 18, 2004
    Assignee: California Institute of Technology
    Inventors: Michael S. Freund, Eiichi Shoji
  • Publication number: 20030055212
    Abstract: A method for preparing a wide range of substituted poly(aniline)s from a single precursor is described. The method uses a variety of reactions, including a boron activation/electrophilic displacement reaction resulting in ipso-substitution. The ability to tune the properties of poly(aniline) through the generation of new structures is useful in numerous fields ranging from polymer-based electronics to sensors.
    Type: Application
    Filed: July 29, 2002
    Publication date: March 20, 2003
    Inventors: Michael S. Freund, Eiichi Shoji
  • Publication number: 20020029979
    Abstract: Sensor systems and sensing methods for detecting one or more analytes in a fluid. A sensor includes a polymer capable of undergoing a proton-coupled redox reaction. The polymer includes a plurality of reactive substituents capable of undergoing a reaction with an analyte. Upon exposure of the sensor to a fluid containing the analyte, a response is detected based on a change in the pKa of the polymer.
    Type: Application
    Filed: July 31, 2001
    Publication date: March 14, 2002
    Inventors: Michael S. Freund, Eiichi Shoji