RN

Riichi NAGAO

HI Hitachi: 2 patents #111 of 1,215Top 10%
Overall (2018): #109,420 of 503,207Top 25%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10153109 Gas circuit breaker Masanao Terada, Hiroaki Hashimoto, Yu Hasegawa, Takashi Iida 2018-12-11
9870884 Gas circuit breaker Masanao Terada, Hajime Urai, Daisuke Ebisawa, Hiroaki Hashimoto 2018-01-16