Patents by Inventor Osamu Irisawa

Osamu Irisawa 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).

  • Production method of organic EL device and cleaning method of organic EL device production apparatus
    Patent number: 7690960
    Abstract: The object of the present invention is to provide a method of stably producing a high quality organic EL device by surely avoiding adverse influence due to organic matters and the like when an organic layer is formed on a surface of, for example, a substrate having an anode formed thereon. The means for resolution is characterized in that the inside of an organic EL device production apparatus equipped with an organic film-forming chamber for forming an organic layer on a surface of, for example, a substrate having an anode formed thereon is cleaned with an ozone gas, and the organic layer is then formed.
    Type: Grant
    Filed: May 31, 2004
    Date of Patent: April 6, 2010
    Assignee: ULVAC, Inc.
    Inventors: Natsuki Takahashi, Koichi Sakasegawa, Takeshi Igarashi, Yasuki Nishinobo, Masahiko Otomo, Osamu Irisawa, Kazuo Yamada
  • Production Method of Organic El Device and Cleaning Method of Organic El Device Production Apparatus
    Publication number: 20070254552
    Abstract: The object of the present invention is to provide a method of stably producing a high quality organic EL device by surely avoiding adverse influence due to organic matters and the like when an organic layer is formed on a surface of, for example, a substrate having an anode formed thereon. The means for resolution is characterized in that the inside of an organic EL device production apparatus equipped with an organic film-forming chamber for forming an organic layer on a surface of, for example, a substrate having an anode formed thereon is cleaned with an ozone gas, and the organic layer is then formed.
    Type: Application
    Filed: May 31, 2004
    Publication date: November 1, 2007
    Applicant: ULVAC, INC.
    Inventors: Natsuki Takahasi, Koichi Sakasegawa, Takeshi Igarashi, Yasuki Nishinobo, Masahiko Otomo, Osamu Irisawa, Kazuo Yamada