Patents by Inventor Tammy Y. Oshiro

Tammy Y. Oshiro 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).

  • Gold nanoparticle aggregates and their applications
    Patent number: 9297801
    Abstract: The invention is drawn to a method of using nanoparticle aggregates to form sensors and optical filters. Properly sized (60 and 200 nm) nanoparticle aggregates with cores having a sulfur-oxygen molecular species and a shell with a surface in contact with the core are obtained. Those nanoparticle aggregates have a first resonance profile to wavelengths between 350 nm and 1075 nm. A modified resonance profile for those nanoparticle aggregates is determined. The nanoparticle aggregates are then selectively sized by irradiating them with electromagnetic energy at sufficient intensity and spectral content to modify the first resonance profile towards the modified resonance profile. The resulting nanoparticle aggregates can be used as sensors or optical filters at a selected wavelength.
    Type: Grant
    Filed: September 3, 2011
    Date of Patent: March 29, 2016
    Assignee: The Regents of the University of California
    Inventors: Jin Zhang, Adam Schwartzberg, Thaddeus Norman, Tammy Y. Oshiro, Christian D. Grant, Rebecca Sutphen, Leo Seballos, Yi Zhang, Claire Gu
  • Novel gold nanoparticle aggregates and their applications
    Publication number: 20120142119
    Abstract: The invention is drawn to a method of using nanoparticle aggregates to form sensors and optical filters. Properly sized (60 and 200 nm) nanoparticle aggregates with cores having a sulfur-oxygen molecular species and a shell with a surface in contact with the core are obtained. Those nanoparticle aggregates have a first resonance profile to wavelengths between 350 nm and 1075 nm. A modified resonance profile for those nanoparticle aggregates is determined. The nanoparticle aggregates are then selectively sized by irradiating them with electromagnetic energy at sufficient intensity and spectral content to modify the first resonance profile towards the modified resonance profile. The resulting nanoparticle aggregates can be used as sensors or optical filters at a selected wavelength.
    Type: Application
    Filed: September 3, 2011
    Publication date: June 7, 2012
    Inventors: Jin Zhang, Adam Schwartzberg, Thaddeus Norman, Tammy Y. Oshiro, Christian D. Grant, Rebecca Sutphen, Leo Seballos, Yi Zhang, Claire Gu
  • Novel gold nanoparticle aggregates and their applications
    Publication number: 20080166706
    Abstract: The invention is drawn to novel gold nanoparticles that are used in a dual optical method for sensitive and selective detection of antigens. The gold nanoparticle aggregates are synthesized from gold hydrochloride and sulfur salts in an aqueous solution. The aggregates can be selectively sized using a spectral notch filter that results in an improved product with versatile uses. The gold nanoparticles can also be used in improved optical communications devices.
    Type: Application
    Filed: March 30, 2006
    Publication date: July 10, 2008
    Inventors: Jin Zhang, Adam Schwartzberg, Thaddeus Norman, Tammy Y. Oshiro, Christian D. Grant, Rebecca Sutphen, Leo Seballos, Yi Zhang, Claire Gu