KH

Koji Hirata

HI Hitachi: 2 patents #339 of 2,942Top 15%
📍 Kyoto, JP: #22 of 57 inventorsTop 40%
Overall (1997): #32,882 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5613748 Rear projection type image display apparatus and transmission type screen used therein Takahiko Yoshida, Atsuo Ohsawa, Kiyoshi Wada, Hiroki Yoshikawa 1997-03-25
5590943 Rear projection type image display apparatus and transmission type screen used therein Takahiko Yoshida, Atsuo Osawa, Kiyoshi Wada, Hiroki Yoshikawa 1997-01-07