Patents by Inventor Teruaki Katube

Teruaki Katube 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).

  • Method of manufacturing an electrode for measuring pH
    Patent number: 5573798
    Abstract: This invention relates to a pH measuring electrode having a sensor film which is sensitive to a hydrogen ion (H.sup.+) in the solution. The pH measuring electrode of this invention has a sensor film of a metal oxide deposited on an electrically insulative ceramics substrate so that the sensor film can be very miniaturized in its size. Therefore, the entire pH measuring electrode can be made considerably small and simple in construction. Also, this invention provides another pH measuring electrode which further includes a porous film of an insulation material coated on the surface of the metal oxide sensor film so that the sensor film is not affected by any coexistent substances.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 12, 1996
    Assignee: Toa Electronics Ltd.
    Inventors: Akihiko Kato, Masaharu Yamasato, Tomio Taguchi, Yoshiki Yanagida, Teruaki Katube
  • Electrode for measuring PH
    Patent number: 5480534
    Abstract: This invention relates to a pH measuring electrode having a sensor film which is sensitive to a hydrogen ion (H.sup.+) in the solution. The pH measuring electrode of this invention has a sensor film of a metal oxide deposited on an electrically insulative ceramics substrate so that the sensor film can be very miniaturized in its size. Therefore, the entire pH measuring electrode can be made considerably small and simple in construction. Also, this invention provides another pH measuring electrode which further includes a porous film of an insulation material coated on the surface of the metal oxide sensor film so that the sensor film is not affected by any coexistent substances.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: January 2, 1996
    Assignee: Toa Electronics Ltd.
    Inventors: Akihiko Kato, Masaharu Yamasato, Tomio Taguchi, Yoshiki Yanagida, Teruaki Katube
  • Electrode for measuring pH
    Patent number: 5320735
    Abstract: This invention relates to a pH measuring electrode having a sensor film which is sensitive to a hydrogen ion (H+) in the solution and method of manufacturing the same. The pH measuring electrode of this invention has a sensor film of a metal oxide deposited on an electrically conductive support so that the sensor film can be very miniaturized in its size. Therefore, the entire pH measuring electrode can be made considerably small and simple in construction. Also, this invention provides another pH measuring electrode which further includes a porous film of an insulation material coated on the surface of the metal oxide sensor film so that the sensor film is not affected by any coexistent substances.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: June 14, 1994
    Assignee: Toa Electronics Ltd.
    Inventors: Akihiko Kato, Masaharu Yamasato, Tomio Taguchi, Yoshiki Yanagida, Teruaki Katube