Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829031 | Liquid crystal display apparatus and optical device for use therein | Toru Numata, Yasuo Otsuka, Mikio Shiraishi, Koji Hirata, Shigeru Inaoka +3 more | 2004-12-07 |
| 6801366 | Projection lens system and projection image display apparatus using the same | Koji Hirata, Shigeru Mori, Takahiro Yoshida, Kazunari Nakagawa | 2004-10-05 |
| 6768594 | Projection lens apparatus and rear projection type image display apparatus using the same | Daisuke Imafuku, Kazunari Nakagawa, Koji Hirata, Hidehiro Ikeda, Shuji Kato | 2004-07-27 |