KS

Kazuo Sawahata

HI Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #89,811 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4884427 Method of producing helical internal gear Hisanobu Kanamaru 1989-12-05