Patents by Inventor Kousuke Ihokura

Kousuke Ihokura 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).

  • Exhaust gas sensor and process for producing same
    Patent number: 4575441
    Abstract: A combustion gas sensor and material therefore responsive to changes in the composition of ambient atmospheres wherein the sensing element includes SnO.sub.2 crystals having a mean d of approximately 500-3200 .ANG. and having a surface area to mass ratio S of 1-8 m.sup.2 /g a process for making same. Preferably, the standard deviation of crystal size distribution is 0.2d.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: March 11, 1986
    Assignee: Figaro Engineering Inc.
    Inventors: Nobuaki Murakami, Katsuyuki Tanaka, Kousuke Ihokura
  • Gas sensor
    Patent number: 4459577
    Abstract: A combustion gas sensor and material therefore responsive to changes in the composition of ambient atmospheres wherein the sensing element includes SnO.sub.2 crystals having a means d of approximately 500-3200 .ANG. and having a surface area to mass ratio S of 1-8 m.sup.2 /g a process for making same. Preferably, the standard deviation of crystal size distribution is 0.2d.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: July 10, 1984
    Assignee: Figaro Engineering Inc.
    Inventors: Nobuaki Murakami, Katsuyuki Tanaka, Kousuke Ihokura