Patents by Inventor Kazuhito Hoshino

Kazuhito Hoshino 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: 7400705
    Abstract: Disclosed herein is a method of evaluating the performance of an ion-exchange film. In the method, small-angle scattering curves for the ion-exchange film at different humidities are obtained by an X-ray measuring apparatus that can detect X-rays scattered at small angles with respect to the axis of an X-ray applied to the ion-exchange film. From the positions of the peaks on the small-angle scattering curves and the X-ray intensities at these peaks, the change in the characteristic of the film, which accompanies change in the molecular structure (hence, ion-exchanging ability) of the ion-exchange film due to the change in humidity, is evaluated. The humidity ambient to the ion-exchange film can be adjusted by a humidity-adjusting device that comprises a vapor source, gas source, gas mixer and gas-introducing pipe.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: July 15, 2008
    Assignee: Rigaku Corporation
    Inventors: Kazuhito Hoshino, Yoshio Iwasaki
  • Patent number: 6993113
    Abstract: Disclosed herein is a method of evaluating the performance of an ion-exchange film. In the method, small-angle scattering curves for the ion-exchange film are obtained by an X-ray measuring apparatus that can detect X-rays scattered at small angles with respect to the axis of an X-ray applied to film. From the positions of the peaks on the small-angle scattering curves and the X-ray intensities at these peaks, the molecular structure of the ion-exchange film is determined, thereby to evaluate the performance of the ion-exchange film.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: January 31, 2006
    Assignee: Rigaku Corporation
    Inventors: Kazuhito Hoshino, Yoshio Iwasaki
  • Patent number: 6937695
    Abstract: Provided are an analyzing apparatus and an analyzing method for analyzing a sample by performing measurements using X-rays and measuring a gas generated from the sample.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 30, 2005
    Assignee: Rigaku Corporation
    Inventor: Kazuhito Hoshino
  • Publication number: 20040066895
    Abstract: An analyzing apparatus comprising an small-angle X-ray scattering device, a mass spectrometer, a sample holder, a sample temperature control device, and a control device. The scattering device applies an X-ray to a sample and detects an X-ray generated from the sample. The mass spectrometer analyzes the gas generated from the sample. The sample holder holds the sample at a position common to the scattering device and the mass spectrometer. The sample temperature control device controls the temperature of the sample. The control device controls the scattering device and the mass spectrometer, making them to perform measuring processes at the same time. The scattering device and the mass spectrometer can measure the sample in the same condition because the sample remains at the same position while they are operating. Therefore, the scattering device and the mass spectrometer acquire data items at the same time about the same sample that remains in the same condition.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 8, 2004
    Applicant: RIGAKU CORPORATION
    Inventor: Kazuhito Hoshino
  • Publication number: 20040008815
    Abstract: Disclosed herein is a method of evaluating the performance of an ion-exchange film. In the method, small-angle scattering curves for the ion-exchange film at different humidities are obtained by an X-ray measuring apparatus that can detect X-rays scattered at small angles with respect to the axis of an X-ray applied to the ion-exchange film. From the positions of the peaks on the small-angle scattering curves and the X-ray intensities at these peaks, the change in the characteristic of the film, which accompanies change in the molecular structure (hence, ion-exchanging ability) of the ion-exchange film due to the change in humidity, is evaluated. The humidity ambient to the ion-exchange film can be adjusted by a humidity-adjusting device that comprises a vapor source, gas source, gas mixer and gas-introducing pipe.
    Type: Application
    Filed: June 9, 2003
    Publication date: January 15, 2004
    Applicant: Rigaku Corporation.
    Inventors: Kazuhito Hoshino, Yoshio Iwasaki
  • Publication number: 20040008816
    Abstract: Disclosed herein is a method of evaluating the performance of an ion-exchange film. In the method, small-angle scattering curves for the ion-exchange film are obtained by an X-ray measuring apparatus that can detect X-rays scattered at small angles with respect to the axis of an X-ray applied to film. From the positions of the peaks on the small-angle scattering curves and the X-ray intensities at these peaks, the molecular structure of the ion-exchange film is determined, thereby to evaluate the performance of the ion-exchange film.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 15, 2004
    Applicant: Rigaku Corporation.
    Inventors: Kazuhito Hoshino, Yoshio Iwasaki