ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,988, issued on May 20, was assigned to TATSUTA ELECTRIC WIRE &CABLE Co. LTD. (Osaka, Japan).
"Electromagnetic wave shield film" was invented by Kouji Takami (Kyoto, Japan), Kenji Kamino (Kyoto, Japan) and Masahiro Watanabe (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic wave shielding film includes: a protective layer; a shield layer laminated on the protective layer; and an adhesive layer laminated on the shield layer. Conductive bumps are formed on a side of the adhesive layer of the shield layer. The conductive bumps are positioned on a tessellation of one kind of polygon at vertices of respective polygons, and the...