Patents by Inventor Taneaki Okuda

Taneaki Okuda 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).

  • Composition in a liquid used for removing a photoresist film and method therefor
    Patent number: 5544776
    Abstract: The invention provides a method for removing a photoresist from a material comprising the steps of removing the photoresist from the material by use of remover composition comprising a solvent selected from the group consisting of 4-methoxy-1-buanol, 3-methoxy-1-butanol and a mixture thereof and propylene carbonate and rinsing the remover remaining on the device by use of water.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: August 13, 1996
    Assignee: NEC Corporation
    Inventors: Taneaki Okuda, Arata Toyoda
  • Process and apparatus for the decomposition of organochlorine solvent contained in water
    Patent number: 5330661
    Abstract: An organochlorine solvent contained in water is decomposed by adding at least one of hydrogen peroxide and ozone to the water and then radiating ultraviolet rays to the water. According to the invention, a catalytic amount of a water-insoluble barium titanate substance is caused to co-exist in the water.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: July 19, 1994
    Assignee: NEC Corporation
    Inventors: Taneaki Okuda, Kazuo Tateishi