Masaho Hirota

KC Kato Spring Works Co.: 1 patents #1 of 6Top 20%

KT Kt: 1 patents #406 of 904Top 45%

Overall (All Time): #3,674,299 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5709700	Hole making device	—	1998-01-20