HH

Hirotsugu Hamaoka

NT Ntn: 1 patents #814 of 1,364Top 60%
📍 Kasai, JP: #3,639 of 5,842 inventorsTop 65%
Overall (All Time): #3,869,766 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4992111 Bearing race member and method of fabrication Hiroshi Yamada, Hirokazu Nakajima, Noriyuki Tsushima 1991-02-12