Patent assignee · JP · UNIVERSITY

Nagoya University and Research Development Corporation of Japan

1Patents
0Active
1Granted
25Portfolio score

Filing activity: Feb 26, 1990 → Feb 26, 1990

Most-cited patents

PatentTitleAreaCited byStatus
US5122845A Substrate for growing gallium nitride compound-semiconductor device and light emitting diode Electricity 137 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.