Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009128 | Passive matrix type display device | Hiroyuki Kishita, Tetsuya Katoh | 2011-08-30 |
| 6894685 | Driving method for luminous elements | Koji Ogusu, Tomohiro Kuno | 2005-05-17 |
| 6509885 | Device having multiple luminescent segments | Koji Ogusu, Shogo Kameyama, Kiyohito Narita, Naoki Matsumoto | 2003-01-21 |
| 6337542 | Organic electroluminescent display device having luminance degradation compensating function | Koji Ogusu, Naoki Matsumoto | 2002-01-08 |
| 6175193 | Electroluminescent display device | Hiroyuki Kishita, Masahiko Osada, Koji Ogusu, Naoki Matsumoto | 2001-01-16 |