Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8877355 | Monoamine compound, charge-transporting material, and organic electroluminescent device | Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Tomoyuki Ogata | 2014-11-04 |
| 8427046 | Monoamine compound, charge-transporting material, and organic electroluminescent device | Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Tomoyuki Ogata | 2013-04-23 |
| 8178215 | Organic compound containing at least two carbazolyl-substituted phenyl structures; charge-transporting material and organic el element containing the compound | Masayoshi Yabe, Hideki Sato, Masayo Fugono, Koichiro Iida | 2012-05-15 |
| 8168307 | Organic compound, charge transport material and organic electroluminescent device | Koichiro Iida, Hideki Sato, Masayoshi Yabe | 2012-05-01 |
| 8022617 | Organic compound, charge-transporting material, composition for charge-transporting material and organic electroluminescent device | Koichiro Iida, Yuichiro Kawamura, Tomoyuki Ogata, Masayoshi Yabe, Misako Okabe +1 more | 2011-09-20 |
| 7777043 | Compound, charge transporting material and organic electroluminescent element | Masayoshi Yabe, Hideki Sato, Masayo Fugono, Takeshi Shioya | 2010-08-17 |
| 5721084 | Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it | Hitoshi Ono, Noriaki Takahashi, Osamu Ando | 1998-02-24 |
| 5629124 | Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it | Hitoshi Ono, Noriaki Takahashi, Osamu Ando | 1997-05-13 |
| 5545502 | Electrostatic image-developing toner | Hitoshi Ono, Noriaki Takahashi, Osamu Ando, Hirofumi Oda | 1996-08-13 |
| 5385799 | Toner for development of electrostatic image | Hitoshi Ono, Osamu Ando | 1995-01-31 |
| 5231173 | Disazo metal chelate compounds for optical recording media | Tetsuo Murayama, Shuichi Maeda, Satoru Imamura, Takumi Nagao | 1993-07-27 |
| 5200288 | Electrostatic developing toner with hydroxyaromatic carboxylic acid additive | Osamu Ando, Hitoshi Ono, Toshiyuki Sueyoshi, Shigenori Hayakawa | 1993-04-06 |
| 5166030 | Electrostatic image-developing toner containing a quaternary ammonium charge controlling agent | Hitoshi Ono, Osamu Ando | 1992-11-24 |