Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5621424 | Head mount display apparatus allowing easy switching operation from electronic image to external field image | Naoto Shimada, Toshiro Okamura, Seiichiro Tabata, Satoshi Imai, Koh Mohri +1 more | 1997-04-15 |
| 5596433 | Head-mounted image display apparatus having a prism with an aspherical surface | — | 1997-01-21 |