Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6396641 | Projection lens system and projection image display apparatus using the same | Koji Hirata, Naoyuki Ogura, Shigeru Mori, Takahiro Yoshida | 2002-05-28 |
| 6342929 | Projection image display apparatus | Koji Hirata, Tomoharu Nakiri, Naoyuki Ogura, Chihiro Egawa | 2002-01-29 |