Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
QP

Qiuyue Piao

KC Kohoku Kogyo Co.: 1 patents #1 of 3Top 35%
📍 Nagahama, JP: #4 of 10 inventorsTop 40%
Overall (2025): #248,745 of 469,880Top 55%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12404201 Preform for optical fiber and manufacturing method of optical fiber Katsuhiro Iwasaki, Yusuke Kinoshita 2025-09-02