Katunari Konishi

YC Yamato Kogyo Co.: 2 patents #3 of 20Top 15%

📍 Himeji, JP: #724 of 1,500 inventorsTop 50%

Overall (All Time): #2,243,347 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6138958	Spring rail frog	Takaaki Irie	2000-10-31
5782437	Spring rail frog having bendable rail with modified cross-section	Takaaki Irie	1998-07-21