ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,833, issued on May 20, was assigned to ORGANO Corp. (Tokyo).

"Reverse osmosis membrane treatment system and reverse osmosis membrane treatment method" was invented by Yuki Nakamura (Tokyo) and Akihiro Takada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reverse osmosis membrane treatment system is provided with a first reverse osmosis membrane treatment device wherein water to be treated is passed through a first reverse osmosis membrane to obtain first permeate water and first concentrated water, and at least a second reverse osmosis membrane treatment device, wherein the first permeate water is passed through a second reverse osmosis mem...