Patent assignee · JP · COMPANY

NEC Corporation and the Tokyo Electric Power Company, Incorporated

1Patents
0Active
1Granted
20Portfolio score

Filing activity: Dec 21, 1989 → Dec 21, 1989

Most-cited patents

PatentTitleAreaCited byStatus
US4992725A Meter for accurately measuring integrated electric power Physics 10 Expired

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