Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9638850 | Polarizer, process for preparing the same, optical member and liquid crystal displaying apparatus | Yoshiki Matsuoka | 2017-05-02 |
| 8518474 | Method for producing iodine type polarizing film | Koji Matsumoto, Nobuyuki Kurata | 2013-08-27 |
| 8012383 | Method for producing polarizing film | Koji Matsumoto, Nobuyuki Kurata | 2011-09-06 |
| 7450305 | Polarizing plate and liquid crystal display device using the same | Hideki Hayashi | 2008-11-11 |
| 7276268 | Poly-azo compound, and polarization film having said compound | Toru Ashida | 2007-10-02 |
| 7136225 | Polarizing plate and method for producing the same | Koji Matsumoto, Tomoo Ueta | 2006-11-14 |
| 7070715 | Disazo compound or salt thereof and polarizing film using the same | Toru Ashida, Yoshiteru Ohta | 2006-07-04 |
| 6965473 | Polarizing plate and liquid crystal display device using the same | Hideki Hayashi | 2005-11-15 |
| 6699976 | Polyazo compound or salt thereof and dye-based polarization film containing the same | Toru Ashida, Yoshiteru Ohta | 2004-03-02 |
| 6606136 | Iodine-type polarizing plate enables neutral white in white display and neutral black in black display | Koji Matsumoto | 2003-08-12 |
| 6583929 | Light-polarizing film | — | 2003-06-24 |
| 6522468 | Light-polarizing film | — | 2003-02-18 |
| 6399752 | Polyazo compound or salt thereof and dye-based polarization film containing the same | Yoshiteru Ohta, Toru Ashida | 2002-06-04 |
| 6277966 | Azo-compounds and dye polarizing films containing them | Yutaka Kayane, Akihiro Taguma | 2001-08-21 |
| 6235064 | Dye containing polarizing film | Kazuya Ogino, Setsuko Yamamoto, Takashi Omura | 2001-05-22 |
| 6204903 | Reflector, reflective polarizing plate and reflective liquid crystal display | Nobuyuki Kurata | 2001-03-20 |
| 6166793 | Reflective liquid crystal display with angularly selective light diffuser directly on reflector | Nobuyuki Kurata | 2000-12-26 |
| 5700296 | Azo compound and a polarizing film containing the same | Kazuya Ogino, Kaneo Yokoyama, Takashi Omura, Setsuko Yamamoto | 1997-12-23 |
| 5659020 | Tetrakisazo compound and a polarizing film containing the same | Kazuya Ogino, Kaneo Yokoyama, Takashi Omura | 1997-08-19 |
| 5480977 | Disazo dyes having aminobenzoylamino group | Kazuya Ogino, Takashi Omura | 1996-01-02 |