Issued Patents 2005
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975460 | Projection lens apparatus and projection type image display apparatus | Hidehiro Ikeda, Masahiko Yatsu, Junichi Ikoma | 2005-12-13 |
| 6956624 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Naoyuki Ogura, Masahiko Yatsu, Hidehiro Ikeda | 2005-10-18 |
| 6945651 | Optical unit and projection type projector apparatus using the same | Masahiko Yatsu, Futoshi Yamasaki | 2005-09-20 |
| 6905213 | Projection apparatus and projection-type image display apparatus | Masahiko Yatsu, Futoshi Yamasaki | 2005-06-14 |
| 6894729 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Naoyuki Ogura, Masahiko Yatsu, Hidehiro Ikeda | 2005-05-17 |
| 6869184 | Polarized-light converting unit and projector using the same | Masahiko Yatsu, Naoyuki Ogura | 2005-03-22 |
| 6863418 | Light source for projector and projection type image display apparatus using thereof | Nobuo Masuoka, Ryuji Kurihara, Yoshie Kodera | 2005-03-08 |