ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,275, issued on April 22, was assigned to Nippon Steel Engineering Co. Ltd. (Tokyo).
"Carbon material and production method therefor" was invented by Eiichiroh Mori (Tokyo), Kenichi Sekimoto (Tokyo), Sugura Takeda (Tokyo) and Yukio Kowaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A biomass-derived carbon material is provided, the carbon material having a carbon content of 60 to 75% by weight and an integrated heat of oxidation reaction of 5 kJ/kg or less when maintained in air at 107deg C. for 20 minutes. A method for producing a carbon material is provided, the method including: a carbonization step of obtaining biomass chars having a car...