Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7585599 | Photomask, and method and apparatus for producing the same | Yoshikazu Nagamura, Kouji Tange, Kouki Hayashi | 2009-09-08 |
| 7582397 | Photomask, and method and apparatus for producing the same | Yoshikazu Nagamura, Kouji Tange, Kouki Hayashi | 2009-09-01 |
| 7441904 | Projection type display apparatus with ventilation | Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku | 2008-10-28 |
| 7404646 | Projection lens apparatus and rear projection type image display apparatus | Yuriko Inadachi, Shuji Kato, Naoyuki Ogura, Koji Hirata | 2008-07-29 |
| 7365907 | Rear projection image display apparatus | Koji Hirata, Shuji Kato, Masahiro Yamamoto, Masahiko Yatsu | 2008-04-29 |
| 7347566 | Projection lens unit and rear projection type image display system | Shuji Kato, Koji Hirata, Naoyuki Ogura | 2008-03-25 |
| 7342724 | Rear projection type image display device | Koji Hirata, Shuji Kato, Masahiro Yamamoto | 2008-03-11 |
| 7264905 | Photomask, and method and apparatus for producing the same | Yoshikazu Nagamura, Kouji Tange, Kouki Hayashi | 2007-09-04 |
| 7261420 | Projection optical unit and projection image display apparatus | Masahiko Yatsu, Koji Hirata | 2007-08-28 |
| 7244030 | Rear projection type image display device | Koji Hirata, Shuji Kato, Masahiro Yamamoto | 2007-07-17 |
| 7210797 | Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus | Koji Hirata, Shuji Kato, Masahiko Yatsu, Tsutomu Nakashima | 2007-05-01 |
| 7175284 | Projection type display apparatus | Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku | 2007-02-13 |
| 7172292 | Projection lens unit and rear projection type image display system | Shuji Kato, Koji Hirata, Naoyuki Ogura | 2007-02-06 |
| 7159988 | Projection optical unit and projection image display apparatus | Masahiko Yatsu, Koji Hirata | 2007-01-09 |
| 7142367 | Projection lens apparatus and projection type image display apparatus | Masahiko Yatsu, Koji Hirata, Junichi Ikoma | 2006-11-28 |
| 7081927 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Masahiko Yatsu | 2006-07-25 |
| 7021768 | Optical apparatus | Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku | 2006-04-04 |
| 6975460 | Projection lens apparatus and projection type image display apparatus | Masahiko Yatsu, Koji Hirata, Junichi Ikoma | 2005-12-13 |
| 6956624 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Masahiko Yatsu | 2005-10-18 |
| 6894729 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Masahiko Yatsu | 2005-05-17 |
| 6857749 | Projection type display apparatus | Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku | 2005-02-22 |
| 6768594 | Projection lens apparatus and rear projection type image display apparatus using the same | Daisuke Imafuku, Naoyuki Ogura, Kazunari Nakagawa, Koji Hirata, Shuji Kato | 2004-07-27 |
| 6573950 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Masahiko Yatsu | 2003-06-03 |
| 6560041 | Projection lens apparatus and projection type image display apparatus | Masahiko Yatsu, Koji Hirata, Junichi Ikoma | 2003-05-06 |
| 6431710 | Optical apparatus | Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku | 2002-08-13 |