Patents by Inventor Kyosuke Katsuyama

Kyosuke Katsuyama 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: 7977955
    Abstract: A particulate matter sensor which may be used as an onboard particulate matter diagnostic sensor includes an insulating base that has at least a pair of opposing plane surfaces, an electrode nucleus that is formed on one of the pair of opposing plane surfaces of the base, and forms an electrode when a conductive substance adheres to the plane surface, and an electrode that is disposed parallel to the electrode nucleus and is provided on the other of the pair of opposing plane surfaces, or provided on a side surface of the base that is adjacent to the pair of opposing plane surfaces, or provided inside the base.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 12, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Kyosuke Katsuyama, Kenshin Kitoh, Takeshi Sakuma, Yukio Miyairi, Junichi Suzuki
  • Patent number: 7772855
    Abstract: There are disclosed an instrument for measuring the concentration of particulates in a fluid, which is capable of determining the concentration of the particulates in the fluid with high accuracy. The instrument for measuring the concentration of the particulates in the fluid includes particulate collecting means, temperature measuring means, flow rate measuring means, impedance measuring means, time measuring means, constant determining means for determining an impedance change per unit time-particulate concentration constant from temperature and flow rate, impedance change per unit time computing means for computing the change of an impedance per unit time, and particulate concentration determining means for determining the concentration of the particulates from the change of the impedance per unit time computed by the impedance change per unit time computing means.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: August 10, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Takeshi Sakuma, Kyosuke Katsuyama, Kenshin Kitoh
  • Publication number: 20090315569
    Abstract: An impedance measuring instrument of a fine particle collector comprising a fine particle collection body for collecting fine particles in a fluid, a conductive can body for containing the fine particle collection body, and a buffering body disposed between the fine particle collection body and the conductive can body, wherein two or more electrodes are arranged on the fine particle collection body, at least one of the electrodes is connected with an AC power supply, at least the other electrode is connected with an ammeter, the AC power supply and the ammeter are interconnected and further connected with the conducive can body, and the conducive can body is grounded.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 24, 2009
    Applicant: NGK Insulators, Ltd.
    Inventors: Kyosuke Katsuyama, Kenshin Kitoh, Takeshi Sakuma
  • Publication number: 20090309571
    Abstract: A particulate matter sensor (1) which may be used as an onboard particulate matter diagnostic sensor includes an insulating base (2) that has at least a pair of opposing plane surfaces, an electrode nucleus (3) that is formed on one of the pair of opposing plane surfaces of the base (2), and forms an electrode when a conductive substance adheres to the plane surface, and an electrode (4) that is disposed parallel to the electrode nucleus (3) and is provided on the other of the pair of opposing plane surfaces, or provided on a side surface of the base (2) that is adjacent to the pair of opposing plane surfaces, or provided inside the base (2).
    Type: Application
    Filed: August 20, 2009
    Publication date: December 17, 2009
    Applicant: NGK Insulators, Ltd.
    Inventors: Kyosuke KATSUYAMA, Kenshin Kitoh, Takeshi Sakuma, Yukio Miyairi, Junichi Suzuki
  • Publication number: 20090284271
    Abstract: There are disclosed an instrument for measuring the concentration of particulates in a fluid, which is capable of determining the concentration of the particulates in the fluid with high accuracy. The instrument for measuring the concentration of the particulates in the fluid includes particulate collecting means, temperature measuring means, flow rate measuring means, impedance measuring means, time measuring means, constant determining means for determining an impedance change per unit time-particulate concentration constant from temperature and flow rate, impedance change per unit time computing means for computing the change of an impedance per unit time, and particulate concentration determining means for determining the concentration of the particulates from the change of the impedance per unit time computed by the impedance change per unit time computing means.
    Type: Application
    Filed: July 21, 2009
    Publication date: November 19, 2009
    Applicant: NGK Insulators, Ltd.
    Inventors: Takeshi Sakuma, Kyosuke Katsuyama, Kenshin Kitoh
  • Publication number: 20080229931
    Abstract: There is provided a honeycomb structure capable of suitably be used for a filter for trapping particulate matter, such as a diesel particulate filter (DPF) and capable of detecting an accumulation amount of particulate matter easily with high accuracy when the honeycomb structure is used for a filter for trapping particulate matter. The honeycomb structure 1 has a plurality of cells functioning as gas passages and partitioned and formed by the porous partition walls and has two or more electrodes therein.
    Type: Application
    Filed: May 29, 2008
    Publication date: September 25, 2008
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kyosuke KATSUYAMA, Takeya MIYASHITA, Kenshin KITOH, Yukio MIYAIRI