ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,892, issued on Nov. 11, was assigned to TERUMO K.K. (Tokyo).
"Method for evaluating covering state of silicone compound" was invented by Takeshi Sato (Kanagawa, Japan) and Renjo Takama (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A covering state of a coating layer containing a silicone compound on an inner surface of hollow fiber membranes is evaluated by dissolving the silicone compound and a dyeing agent in an organic solvent and causing the coating solution to pass through the hollow fiber membranes. The covering state of the silicone compound or a crosslinked product is determined by observing a dyed state of a hollow fiber m...