RH

Ryoji Hirai

HI Hitachi: 1 patents #867 of 2,942Top 30%
📍 Mobara, JP: #32 of 108 inventorsTop 30%
Overall (1997): #81,989 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5606217 Color cathode ray tube of shadow mask type Yuuichi Inoue 1997-02-25