Patents by Inventor Toshihiko Shimizui

Toshihiko Shimizui 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 manufacturing magneto-resistive effect type magnetic heads
    Publication number: 20020066177
    Abstract: Providing a method for manufacturing magneto-resistive effect type magnetic heads which can suppress the electrostatic destructions due to the ESD and EOS, and can properly manufacture magneto-resistive effect type magnetic heads without deteriorating characteristics. In a layered type magnetic head forming step S1, a short circuit pattern for making a short circuit in the element circuit of an MR head is formed. And the short circuit pattern is cut off before a fine polishing step S4, or at a wafer bar cutting off step S6.
    Type: Application
    Filed: July 5, 2001
    Publication date: June 6, 2002
    Applicant: SONY CORPORATION
    Inventors: Akio Takada, Katsuki Sasaki, Toshihiko Shimizui, Kohki Matsuki