Patents by Inventor Tosihide KUMAZAKI

Tosihide KUMAZAKI 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).

  • Signal processing apparatus for gas sensor
    Patent number: 10288526
    Abstract: A signal processing apparatus for a gas sensor is applied to a gas sensor that is disposed on an exhaust passage of an engine to detect a concentration of a specific component in exhaust gas flowing through the exhaust passage. The signal processing apparatus includes a filtering means that attenuates exhaust pulsation noise included in a detection signal of the gas sensor, and a filter characteristic setting means that variably sets filter characteristics of the filtering means based on engine speed.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 14, 2019
    Assignee: DENSO CORPORATION
    Inventors: Katsuhide Akimoto, Tosihide Kumazaki, Takahito Masuko
  • SIGNAL PROCESSING APPARATUS FOR GAS SENSOR
    Publication number: 20170307477
    Abstract: A signal processing apparatus for a gas sensor is applied to a gas sensor that is disposed on an exhaust passage of an engine to detect a concentration of a specific component in exhaust gas flowing through the exhaust passage. The signal processing apparatus includes a filtering means that attenuates exhaust pulsation noise included in a detection signal of the gas sensor, and a filter characteristic setting means that variably sets filter characteristics of the filtering means based on engine speed.
    Type: Application
    Filed: September 18, 2015
    Publication date: October 26, 2017
    Applicant: DENSO CORPORATION
    Inventors: Katsuhide AKIMOTO, Tosihide KUMAZAKI, Takahito MASUKO