KO

Keizou Ohtsuka

HI Hitachi: 1 patents #311 of 1,214Top 30%
Overall (1982): #48,670 of 81,411Top 60%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4364032 Method and apparatus for diagnosing local overheating in a rotary electric machine Kiyoshi Narato, Sadahiko Niwa 1982-12-14