US Patent Issued to OJI HOLDINGS on March 31 for "Polypropylene film, polypropylene film integrated with metal layer, and film capacitor" (Japanese Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,195, issued on March 31, was assigned to OJI HOLDINGS Corp. (Tokyo).

"Polypropylene film, polypropylene film integrated with metal layer, and film capacitor" was invented by Tatsuji Ishida (Tokyo), Takeshi Tominaga (Tokyo) and Tadakazu Ishiwata (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polypropylene film having a high dielectric breakdown strength at high temperatures. Provided is a polypropylene film in which a polypropylene resin constituting the polypropylene film has a molecular-weight distribution (Mw/Mn) of the weight-average molecular weight Mw to the number-average molecular weight Mn of has a Z-average molecular w...