Patents by Inventor Masuaki Ota

Masuaki Ota 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).

  • Printed circuit board
    Patent number: 4694121
    Abstract: A printed circuit board having an electrically insulative substrate, an electroconductive layer formed on the electrically insulative substrate, and a resist layer formed on the electroconductive layer which has a row of openings whose distances between adjacent ones increase from one end to the other end of the row.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: September 15, 1987
    Assignee: Sony Corporation
    Inventor: Masuaki Ota