Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10126667 | Quinone derivative and electrophotographic photosensitive member | Hideki Okada, Fumio Sugai | 2018-11-13 |
| 9964869 | Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive member | Kensuke Okawa, Hideki Okada, Jun Azuma, Fumio Sugai | 2018-05-08 |