KO

Keizo Ohtsuka

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #4,048,614 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4373376 Method and apparatus for diagnosing overheating of an electric machine Kiyoshi Narato, Sadahiko Niwa 1983-02-15