YH

Yoshimi Hakamata

HI Hitachi: 4 patents #68 of 2,942Top 3%
Overall (1997): #5,133 of 185,788Top 3%
4
Patents 1997

Issued Patents 1997

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5697150 Method forming an electric contact in a vacuum circuit breaker Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Yoshio Koguchi, Toru Tanimizu +1 more 1997-12-16
5691521 Vacuum circuit breaker with improved contact assembly Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Shunkichi Endoo, Tooru Tanimizu +1 more 1997-11-25
5612523 Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof Toru Tanimizu, Akira Osaka, Katsuhiro Komuro 1997-03-18
5594224 Vacuum circuit interrupter Toru Tanimizu, Masato Kobayashi, Akira Osaka, Katsuhiro Komuro 1997-01-14