Patents by Inventor Haruya Shimura

Haruya Shimura 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).

  • I-V characteristic measuring apparatus and I-V characteristic measuring method for solar cell, and recording medium recorded with program for I-V characteristic measuring apparatus
    Patent number: 9176182
    Abstract: To provide an I-V characteristic measuring apparatus that can, even though a solar simulator of a flash light type is used, accurately measure a true I-V characteristic of a solar cell that exhibits a different I-V characteristic depending on a sweep direction when a sweep time of applied voltage is short, an internal division ratio calculation part that, at each voltage value, calculates an internal division ratio at which a current value of a dark state stationary I-V characteristic internally divides a gap between a current value of a dark state forward I-V characteristic and a current value of a dark state reverse I-V characteristic; and a light state stationary I-V characteristic estimation and calculation part that, on the basis of the internal division ratio, a light state forward I-V characteristic, and a light state reverse I-V characteristic, estimates and calculates a light state stationary I-V characteristic are provided.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 3, 2015
    Assignees: National Institute of Advanced Industrial Science and Technology, KYOSHIN ELECTRIC CO., LTD.
    Inventors: Yoshihiro Hishikawa, Haruya Shimura, Kohei Kamatani, Hajime Kondo, Akio Shimono
  • I-V CHARACTERISTIC MEASURING APPARATUS AND I-V CHARACTERISTIC MEASURING METHOD FOR SOLAR CELL, AND RECORDING MEDIUM RECORDED WITH PROGRAM FOR I-V CHARACTERISTIC MEASURING APPARATUS
    Publication number: 20140354323
    Abstract: To provide an I-V characteristic measuring apparatus that can, even though a solar simulator of a flash light type is used, accurately measure a true I-V characteristic of a solar cell that exhibits a different I-V characteristic depending on a sweep direction when a sweep time of applied voltage is short, an internal division ratio calculation part that, at each voltage value, calculates an internal division ratio at which a current value of a dark state stationary I-V characteristic internally divides a gap between a current value of a dark state forward I-V characteristic and a current value of a dark state reverse I-V characteristic; and a light state stationary I-V characteristic estimation and calculation part that, on the basis of the internal division ratio, a light state forward I-V characteristic, and a light state reverse I-V characteristic, estimates and calculates a light state stationary I-V characteristic are provided.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 4, 2014
    Applicants: KYOSHIN ELECTRIC CO., LTD., National Institute of Advanced Industrial Science and Technology
    Inventors: Yoshihiro Hishikawa, Haruya Shimura, Kohei Kamatani, Hajime Kondo, Akio Shimono