IO

Isao Ohkawa

CC Copal Electronics Co.: 1 patents #11 of 20Top 60%
📍 Iruma, JP: #225 of 400 inventorsTop 60%
Overall (All Time): #3,682,875 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5746515 Dynamic-pressure gas bearing Akiyoshi Takahashi, Nakazo Ariyama, Hiroki Matsushita, Kachu Ishizuka 1998-05-05