ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,500, issued on April 29, was assigned to KONICA MINOLTA INC. (Tokyo).
"Hydrogel particle and method for producing same, cell or cell structure each enclosing hydrogel particle therein, method for evaluating activity of cell using hydrogel particle, and use of hydrogel particle as sustained release preparation" was invented by Makoto Mochizuki (Tokyo), Chie Inui (Tokyo), Natsumi Hirayama (Kyoto, Japan), Akihiro Maezawa (Tokyo) and Yasuhiko Tabata (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention addresses the problem of providing: a hydrogel particle which can be taken into a cell by the action of the cell and can cont...