Yuichiro Nakadai

TC The Sailor Pen Co.: 1 patents #1 of 1Top 100%

Overall (2025): #155,095 of 469,880Top 35%

Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
12285967	Writing instrument and pen tip part	—	2025-04-29