TO

Tadashi Ookawa

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Funabashi, JP: #699 of 1,104 inventorsTop 65%
Overall (All Time): #3,948,828 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4733070 Rotational information output device Hiroyuki Tomita, Masataka Yahara, Masaharu Muramatu, Sumio Kobayashi, Hiroshi Sugai +1 more 1988-03-22