Patents by Inventor Yuchiro Numasawa

Yuchiro Numasawa 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 for fabricating a semiconductor device
    Patent number: 5202280
    Abstract: In a method for fabricating a semiconductor device according to the invention, a tantalum oxide layer is formed on a semiconductor substrate, titanium ions are injected into the tantalum oxide layer, and the tantalum oxide layer is heated to be fined.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: April 13, 1993
    Assignee: NEC Corporation
    Inventors: Satoshi Kamiyama, Yuchiro Numasawa