Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12304973 | Polysaccharide derivative production method and lignin derivative production method | Daisuke Hirose, Samuel Budi Wardhana Kusuma, Naoki Wada, Kenji Takahashi | 2025-05-20 |
| 9303174 | Black ink composition | Minharu Kanaya | 2016-04-05 |
| 9023140 | Ink jet ink set and ink jet recording system | Hiromi Iseki, Kiyohiko Takemoto, Tomohiro Aruga | 2015-05-05 |
| 8960877 | Black ink composition | Miharu Kanaya | 2015-02-24 |
| 8362107 | Ink set and recording method using the same | Miharu Kanaya, Daisuke Ishihara, Ayako Nishiki | 2013-01-29 |
| 8133314 | Ink composition, recording method using the same, and recorded matter | Daisuke Ishihara, Miharu Kanaya, Masaru Kumagai | 2012-03-13 |