AO

Akira Osaka

HI Hitachi: 2 patents #339 of 2,942Top 15%
Overall (1997): #46,431 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5612523 Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof Yoshimi Hakamata, Toru Tanimizu, Katsuhiro Komuro 1997-03-18
5594224 Vacuum circuit interrupter Toru Tanimizu, Yoshimi Hakamata, Masato Kobayashi, Katsuhiro Komuro 1997-01-14