US Patent Issued to KURARAY on Nov. 3 for "Carbonaceous material, method for producing same, electrode active material for electric double layer capacitors, electrode for electric double layer capacitors, and electric double layer capacitor" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,999, issued on Nov. 3, was assigned to KURARAY Co. LTD. (Kurashiki, Japan).

"Carbonaceous material, method for producing same, electrode active material for electric double layer capacitors, electrode for electric double layer capacitors, and electric double layer capacitor" was invented by Minoru Matsushita (Bizen, Japan), Mitsunori Hitomi (Bizen, Japan), Shushi Nishimura (Bizen, Japan), Hiroyuki Nishinami (Bizen, Japan) and Takayuki Yamada (Bizen, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a carbonaceous material having a silicon element content of less than 200 ppm, a powder conductivity of 10.0 to 22.0 S...