JO

Jiro Ohta

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Canon: 1 patents #14,899 of 19,416Top 80%
Overall (All Time): #2,331,280 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4838710 Static pressure gas bearing assembly Sadamu Tozawa, Koichi Matsushita, Yutaka Maruyama 1989-06-13
4639190 Tubular water wheel — 1987-01-27