ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,136, issued on June 16, was assigned to FUJIFILM Corp. (Tokyo).
"Filtering device, purification device, and method for manufacturing chemical liquid" was invented by Tadashi Omatsu (Shizuoka, Japan), Tetsuya Kamimura (Shizuoka, Japan), Tetsuya Shimizu (Shizuoka, Japan) and Satomi Takahashi (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filtering device is for obtaining a chemical liquid by purifying a liquid to be purified, and the filtering device has an inlet portion, an outlet portion, a filter A, at least one filter B different from the filter A, and a flow path which includes the filter A and the filter B arranged in series a...