Patents by Inventor Naganori Dogami

Naganori Dogami 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).

  • MEMS type semiconductor gas detection element
    Patent number: 11977043
    Abstract: The MEMS type semiconductor gas detection element of the invention is a MEMS type semiconductor gas detection element 1 having a MEMS structure, for detecting hydrogen gas, comprising: a substrate 2; a gas sensitive portion 3 mainly made of a metal oxide semiconductor and provided to the substrate 2; a heating portion 4 for heating the gas sensitive portion 3; an inactive film 5 having hydrogen-permselective and formed outside the gas sensitive portion 3; a protective film 6 formed outside the inactive film 5, for suppressing deterioration of the gas sensitive portion 3.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 7, 2024
    Assignee: NEW COSMOS ELECTRIC CO., LTD.
    Inventors: Hirokazu Mitsuhashi, Naganori Dogami
  • MEMS TYPE SEMICONDUCTOR GAS DETECTION ELEMENT
    Publication number: 20210116405
    Abstract: The MEMS type semiconductor gas detection element of the invention is a MEMS type semiconductor gas detection element 1 having a MEMS structure, for detecting hydrogen gas, comprising: a substrate 2; a gas sensitive portion 3 mainly made of a metal oxide semiconductor and provided to the substrate 2; a heating portion 4 for heating the gas sensitive portion 3; an inactive film 5 having hydrogen-permselective and formed outside the gas sensitive portion 3; a protective film 6 formed outside the inactive film 5, for suppressing deterioration of the gas sensitive portion 3.
    Type: Application
    Filed: August 2, 2019
    Publication date: April 22, 2021
    Inventors: Hirokazu Mitsuhashi, Naganori Dogami