Patents by Inventor Hiromasa Hattori

Hiromasa Hattori 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).

  • Woven glass cloth for printed wiring board and printed wiring products manufactured therefrom
    Patent number: 5837624
    Abstract: To enhance the tear strength without increasing the thickness, a woven glass cloth having a mass of 15 to 30 g/m.sup.2, for use as a base material for printed wiring board material, is characterized in that the weft or warp is provided by a 75 denier or more strand, thicker than the warp, and thread count of the thicker strand per unit length is set smaller than that of the other strand.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: November 17, 1998
    Assignees: Matsushita Electric Works, Ltd., Nitto Boseki Co., LTd.
    Inventors: Kozo Sakaguchi, Fumio Nagamine, Keita Miyasato, Hiromasa Hattori, Tatsuya Watanabe, Akinori Hibino