Patents by Inventor Akio Mikogami

Akio Mikogami 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).

  • Container for evaporation of metal
    Patent number: 4029466
    Abstract: Metal is evaporated in a container which comprises an electrically conductive ceramic base whose surface in contact with the molten metal is coated with a film comprising, a main component selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide, chromium carbide, molybdenum carbide, tungsten carbide, tungsten metal, tantalum metal and molybdenum metal.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: June 14, 1977
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaji Ishii, Akio Mikogami, Akira Miyai
  • Composition for diffusing phosphorus
    Patent number: 4025464
    Abstract: A phosphorus nitride-silicon oxide composition having good thermal stability and diffusion characteristics for use as a diffusant source of n-type impurities for a semi-conductor device.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: May 24, 1977
    Inventors: Mitsuo Yamashita, Akio Mikogami, Masashi Hasegawa, Hiroshi Oizumi
  • High temperature anticorrosive molded product
    Patent number: 4008183
    Abstract: A high temperature anticorrosive molded product produced by hot pressing a mixture comprising 1-10 weight parts of powdery aluminum and 100 weight parts of a powdery composition comprising an electric conductive refractory, boron nitride and aluminum nitride wherein said powdery composition is encompassed by the range electric conductive refractory : boron nitride : aluminum nitride as shown in the basal triangle of 40 : 20 : 40, 50 : 10 : 40, 70 : 10 : 20, 70 : 20 : 10 and 40 : 50 : 10 of FIG. 1.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: February 15, 1977
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaji Ishii, Akio Mikogami, Tetsuo Torigai
  • Composition for diffusing phosphorus
    Patent number: 3972838
    Abstract: A phosphorus nitride-silicon oxide composition having good thermal stability and diffusion characteristics for use as a diffusant source of n-type impurities for a semi-conductor device.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: August 3, 1976
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Mitsuo Yamashita, Akio Mikogami, Masashi Hasegawa, Hiroshi Oizumi
  • Composition for diffusing phosphorus
    Patent number: 3931039
    Abstract: A phosphorus nitride-silicon oxide composition having good thermal stability and diffusion characteristics for use as a diffusant source of n-type impurities for a semi-conductor device.
    Type: Grant
    Filed: November 1, 1973
    Date of Patent: January 6, 1976
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Mitsuo Yamashita, Akio Mikogami, Masashi Hasegawa, Hiroshi Oizumi