公开(公告)号：US11597122B2

公开(公告)日：2023-03-07

申请号：US16591634

申请日：2019-10-03

Applicant: FUJIFILM Corporation

Inventor： Ricardo Itiro Ori ,  Hiroki Yanagawa ,  Kozue Ikeda

IPC: B29C33/38 ,  A61M37/00 ,  B24B19/16 ,  B29C33/42 ,  A61K9/00 ,  B29L31/00

Abstract: Provided are a manufacturing method of a plate precursor having a plurality of needle-like protrusions and a manufacturing method of a microneedle array, which make it possible to manufacture a plate precursor within a short period of time.
A manufacturing method of a plate precursor having a needle-like protrusion includes: a preparation step of preparing a cutting tool including at least one blade conforming to an external shape of the needle-like protrusion, and a base material; and a cutting step of cutting the base material by rotating the cutting tool about a tool axis of the cutting tool and revolving the cutting tool around an axis of the needle-like protrusion to be formed on the base material to form the needle-like protrusion having a shape conforming to a shape of the cutting tool.