ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,664, issued on Nov. 18, was assigned to NIPPON ZOKI PHARMACEUTICAL Co. LTD. (Osaka, Japan).
"Medical sheet" was invented by Takafumi Konishi (Osaka, Japan), Mitsuru Naiki (Kato, Japan), Toshiko Ujita (Osaka, Japan) and Hitoshi Yamamoto (Ono, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A medical sheet has a cell infiltration suppressing action, including a nonwoven fabric formed of fiber containing an aliphatic polyester, and having a porosity of 50 to 90%. The sheet is very useful because it has an excellent neuroprotective and/or nerve regeneration promoting action, which protects nerves by suppressing the infiltration of inflammatory cell...