Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321789 | Projection display apparatus, and light guide tube/light valve for use in the same | Hiroshi Kida, Masahiro Usui, Eiichi Toide, Mitsushige Kondo | 1994-06-14 |
| 5285287 | Projecting method for picture display apparatus | — | 1994-02-08 |