Issued Patents All Time
Showing 51–71 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6559911 | Polarization light splitting film, backlight system and liquid crystal display having particular diffusion layer under optical rotation selection layer | Fumihiro Arakawa | 2003-05-06 |
| 6560023 | Optical lamination sheet | Fumihiro Arakawa | 2003-05-06 |
| 6504589 | Backlight device and liquid crystal display device | Fumihiro Arakawa | 2003-01-07 |
| 6417831 | Diffused light controlling optical sheet, back light device and liquid crystal display apparatus | — | 2002-07-09 |
| 6333817 | Optical lamination sheet | Fumihiro Arakawa | 2001-12-25 |
| 6259496 | Backlight device and light transmission type display apparatus | — | 2001-07-10 |
| 6147804 | Optical sheet lamination | Fumihiro Arakawa | 2000-11-14 |
| 6147734 | Bidirectional dichroic circular polarizer and reflection/transmission type liquid-crystal display device | — | 2000-11-14 |
| 6104455 | Back light device and liquid crystal display apparatus | — | 2000-08-15 |
| 5995288 | Optical sheet optical sheet lamination light source device, and light-transmissive type display apparatus | Fumihiro Arakawa | 1999-11-30 |
| 5735590 | Backlighting device with a transparent sheet having straight ridges | Naoki Yoshida, Taiji Yamamoto, Yukio Inagaki | 1998-04-07 |
| 5730518 | Backlighting device | Naoki Yoshida, Osamu Shoji, Eiichi Yanagi, Takumi Fukunishi | 1998-03-24 |
| 5688035 | Backlighting device free of a bright line | Naoki Yoshida | 1997-11-18 |
| 5647655 | Back lighting device | Naoki Yoshida | 1997-07-15 |
| 5618095 | Backlighting device | Mitsuru Fukamachi, Naoki Yoshida | 1997-04-08 |
| 5521797 | Backlighting device | Yukio Inagaki, Naoki Yoshida | 1996-05-28 |
| 5442523 | Backlighting device | Naoki Yoshida, Osamu Shoji, Eiichi Yanagi, Takumi Fukunishi | 1995-08-15 |
| 5392199 | Back lighting device | Naoki Yoshida | 1995-02-21 |
| 5289351 | Backlighting device | Osamu Shoji, Naoki Yoshida | 1994-02-22 |
| 5262928 | Back lighting device | Naoki Yoshida, Osamu Shoji | 1993-11-16 |
| 5093765 | Back lighting device for a panel | Naoki Yoshida, Osamu Shoji, Eiichi Yanagi, Takumi Fukunishi | 1992-03-03 |