Patents by Inventor Roumiana Tsenkova

Roumiana Tsenkova 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: 11828654
    Abstract: A spectroscopic analyzer includes: an irradiator that irradiates a target measurement object with lights of a plurality of different wavelengths sequentially as a pre-irradiation, and, after the pre-irradiation, further irradiates the target measurement object with lights of a plurality of different wavelengths sequentially as a measurement-irradiation; a detector that, during the measurement-irradiation, detects reflected light, transmitted light, or a transmitted reflected light from the target measurement object at each of the plurality of different wavelengths of the measurement-irradiation and that outputs absorbance spectral data; a data analyzer that analyzes the absorbance spectral data; and a result display that displays analysis results related to components of the target measurement object.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 28, 2023
    Inventor: Roumiana Tsenkova
  • Publication number: 20220364920
    Abstract: A spectroscopic analyzer includes: an irradiator that irradiates a target measurement object with lights of a plurality of different wavelengths sequentially as a pre-irradiation, and, after the pre-irradiation, further irradiates the target measurement object with lights of a plurality of different wavelengths sequentially as a measurement-irradiation; a detector that, during the measurement-irradiation, detects reflected light, transmitted light, or a transmitted reflected light from the target measurement object at each of the plurality of different wavelengths of the measurement-irradiation and that outputs absorbance spectral data; a data analyzer that analyzes the absorbance spectral data; and a result display that displays analysis results related to components of the target measurement object.
    Type: Application
    Filed: September 18, 2019
    Publication date: November 17, 2022
    Inventor: Roumiana Tsenkova
  • Patent number: 7570357
    Abstract: A visible/near-infrared spectrometry and its device for determining the components of a sample and the characteristics of the components of the sample by using visible light and/or near-infrared light in the wavelength range from 400 nm to 2500 nm. This spectrometry and device enable measurement that has been conventionally difficult, including high-accuracy determination of many components, detection of components present in ultra-low concentrations, and real-time determination of component characteristics, including determination of the structure or function of bio-macromolecules and their variations. The spectrum of a sample is measured while exposing the sample to water-activating perturbations (WAP), thereby causing the response spectrum to change, and by detecting transitions of the response spectrum. With this, by conducting spectrum analysis and/or multivariate analysis, the components of the sample and/or the characteristics of the components can be determined.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: August 4, 2009
    Assignee: Kyokko Denki Kabushiki Kaisha
    Inventor: Roumiana Tsenkova
  • Publication number: 20080113337
    Abstract: The present invention provides a method and device of quantitatively or qualitatively examining and judging the presence of virus infection, such as HIV, or the presence of prion infection by: irradiating a sample derived from an examinee or other animal with light having a wavelength in a range of 400 nm to 2500 nm or a wavelength in part of the range; detecting reflected light, transmitted light, or transmitted and reflected light to obtain an absorption spectral data; and analyzing the absorbance at all measurement wavelengths or at specific wavelengths in the absorption spectral data by using an analytical model prepared beforehand. The analytical model can be prepared by carrying out spectral measurement, with a perturbation being provided, and carrying out a multivariate analysis that brings out perturbation effects.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 15, 2008
    Applicants: THE NEW INDUSTRY RESEARCH ORGANIZATION, OSAKA UNIVERSITY
    Inventors: Akikazu Sakudo, Roumiana Tsenkova, Kazuyoshi Ikuta, Takashi Onodera
  • Publication number: 20070211247
    Abstract: A visible/near-infrared spectrometry and its device for determining the components of a sample and the characteristics of the components of the sample by using visible light and/or near-infrared light in the wavelength range from 400 nm to 2500 nm. This spectrometry and device enable measurement that has been conventionally difficult, including high-accuracy determination of many components, detection of components present in ultra-low concentrations, and real-time determination of component characteristics, including determination of the structure or function of bio-macromolecules and their variations. The spectrum of a sample is measured while exposing the sample to water-activating perturbations (WAP), thereby causing the response spectrum to change, and by detecting transitions of the response spectrum. With this, by conducting spectrum analysis and/or multivariate analysis, the components of the sample and/or the characteristics of the components can be determined.
    Type: Application
    Filed: November 10, 2004
    Publication date: September 13, 2007
    Applicant: ZAIDANHOZIN SINSANGYOSOZOKENK YUKIKO
    Inventor: Roumiana Tsenkova
  • Patent number: 6793624
    Abstract: A method for diagnosing mastitis of cows, includes the steps of (1) irradiating visual light rays and/or near infrared rays in a wavelength range of 400 to 2500 nm into urine, raw milk or a mammary gland of a cow, (2) detecting an intensity of transmitted light rays, reflected light rays or transmitted and reflected light rays from said urine, raw milk or mammary gland, and (3) effecting multivariate analysis while using a classification model based on probability, separability or similarity, and (4) diagnosing the presence of the mastitis of the cow.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: September 21, 2004
    Assignee: Japan, as represented by President of Kobe University
    Inventor: Roumiana Tsenkova
  • Patent number: 6748251
    Abstract: A method for diagnosing mastitis of cows, includes the steps of (1) irradiating visual light rays and/or near infrared rays in a wavelength range of 400 to 2500 nm into urine, raw milk or a mammary gland of a cow, (2) detecting an intensity of transmitted light rays, reflected light rays or transmitted and reflected light rays from said urine, raw milk or mammary gland, and (3) effecting multivariate regression analysis, and (4) diagnosing the presence of the mastitis of the cow.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 8, 2004
    Assignee: Japan, as represented by President of Kobe University
    Inventors: Roumiana Tsenkova, Koichi Murayama
  • Publication number: 20020198441
    Abstract: A method for diagnosing mastitis of cows, includes the steps of (1) irradiating visual light rays and/or near infrared rays in a wavelength range of 400 to 2500 nm into urine, raw milk or a mammary gland of a cow, (2) detecting an intensity of transmitted light rays, reflected light rays or transmitted and reflected light rays from said urine, raw milk or mammary gland, and (3) effecting multivariate analysis while using a classification model based on probability, separability or similarity, and (4) diagnosing the presence of the mastitis of the cow.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 26, 2002
    Inventor: Roumiana Tsenkova
  • Publication number: 20020183600
    Abstract: A method for diagnosing mastitis of cows, includes the steps of (1) irradiating visual light rays and/or near infrared rays in a wavelength range of 400 to 2500 nm into urine, raw milk or a mammary gland of a cow, (2) detecting an intensity of transmitted light rays, reflected light rays or transmitted and reflected light rays from said urine, raw milk or mammary gland, and (3) effecting multivariate regression analysis, and (4) diagnosing the presence of the mastitis of the cow.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 5, 2002
    Inventors: Roumiana Tsenkova, Koichi Murayama