Tohru Tsubaki

HI Hitachi: 1 patents #814 of 2,935Top 30%

Overall (1989): #47,933 of 140,708Top 35%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4890193	Gas-insulated switchgear equipment	—	1989-12-26