ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,487, issued on Feb. 10, was assigned to DKS Co. LTD. (Kyoto, Japan).
"Subcutaneous or submucosal expansion agent" was invented by Toshiyuki Morisawa (Nishinomiya, Japan), Takayuki Hayashi (Kyoto, Japan), Yosuke Goi (Kyoto, Japan) and Takazumi Tawa (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to provide a subcutaneous or submucosal expansion agent that not only has superior expansion properties to those of conventional agents, and maintains the expanded state for a relatively long period of time, but also ensures sufficient administration properties. The subcutaneous or submucosal expansion agent is injected into a subcut...