Patents by Inventor Tasuhiko Akiyama

Tasuhiko Akiyama 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 MAGNETIC MEMORY CHIP DEVICE
    Publication number: 20100120176
    Abstract: A method for manufacturing a magnetic memory chip device is provided with a step of writing information on a plurality of magnetic memory chips formed on a silicon wafer; a step of adhering a high permeability plate, which is composed of a material having permeability higher than that of silicon and has a thickness of 50 ?m or more, on the rear surface of a silicon wafer after writing the information; and a step of dicing the silicon wafer into magnetic memory chips after adhering the high permeability plate.
    Type: Application
    Filed: February 21, 2008
    Publication date: May 13, 2010
    Inventors: Kazuyuki Misumi, Masahiro Shimizu, Tsuyoshi Koga, Tasuhiko Akiyama, Tomohiro Murakami