HY

Hirofumi Yamaguchi

NI Ngk Insulators: 1 patents #50 of 163Top 35%
TL Tokyo Electron Limited: 1 patents #52 of 216Top 25%
📍 Nirasaki, JP: #2 of 3 inventorsTop 70%
Overall (1997): #37,879 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5668071 Piezoelectric porcelain Toshikatsu Kashiwaya, Tadashi Otagiri 1997-09-16
5609689 Vacuum process apparaus Susumu Kato 1997-03-11