INTERNATIONAL PATENT: SHIGAKI YOSHIFUMI, 紫垣 由文 FILES APPLICATION FOR "METHOD FOR USING ABALONE SHELL TO PRODUCE PERFECTLY SPHERICAL NUCLEATED PERFECTLY ROUND CULTURED PEARL"

GENEVA, April 28 -- SHIGAKI Yoshifumi (4-22-16, Nameshi, Nagasaki-shi, Nagasaki8528061), 紫垣　由文 (長崎県長崎市滑石４丁目２２－１６) filed a patent application (PCT/JP2025/013431) for "METHOD FOR USING ABALONE SHELL TO PRODUCE PERFECTLY SPHERICAL NUCLEATED PERFECTLY ROUND CULTURED PEARL" on Apr 01, 2025. With publication no. WO/2026/083619, the details related to the patent application was published on Apr 23, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): SHIGAKI ...