Masahiro Kusayama

YK Ykk: 1 patents #19 of 50Top 40%

📍 Kurobe, JP: #7 of 12 inventorsTop 60%

Overall (2011): #225,501 of 364,097Top 65%

Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7870649	Waterproof slide fastener	Ryo Mikuma	2011-01-18