Patents by Inventor Midori Shibata

Midori Shibata 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).

  • Multilayered air-fuel ratio sensor
    Patent number: 7824531
    Abstract: A multilayered air-fuel ratio sensor consists of a plurality of substrate layers. At least one heterogeneous boundary layer is interposed between the plurality of substrate layers. The heterogeneous boundary layer has a thickness in a range of 10 to 100 ?m. The heterogeneous boundary layer absorbs thermal shocks or any other stresses acting on the substrate layers and stops the growth of cracks.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: November 2, 2010
    Assignee: Denso Corporation
    Inventors: Tomio Sugiyama, Hiromi Sano, Masahiro Shibata, Midori Shibata, legal representative, Natsumi Shibata, legal representative, Raina Shibata, legal representative, Syuichi Nakano
  • Composite gas sensor
    Publication number: 20020038761
    Abstract: A composite gas sensor comprises a pump cell, a NOx sensor cell and an oxygen sensor cell. The NOx sensor cell is connected to a first ammeter and a constant power source to measure the NOx concentration of a sample gas. The pump cell is connected to a second ammeter and a variable power source to measure an air-fuel ratio of the sample gas. The oxygen sensor cell is connected to a voltmeter. A controller adjusts the variable power source to produce a constant value from the voltmeter.
    Type: Application
    Filed: December 10, 2001
    Publication date: April 4, 2002
    Inventors: Tomio Sugiyama, Naoto Miwa, Masahiro Shibata, Hiromi Sano, Akio Tanaka, Midori Shibata