Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305046 | Ink jet ink composition and ink jet printing method | Kei Hiruma, Mitsunobu NAKATANI, Tomoyuki Ushiyama | 2025-05-20 |
| 12291641 | Metal pigment composition and coloring method | Hiroaki Kida, Shintaro ASAI, Kei Hiruma, Tomoyuki Ushiyama, Mitsunobu NAKATANI | 2025-05-06 |
| 12264250 | Coloring composition and coloring method | Shintaro ASAI, Hiroaki Kida, Kei Hiruma, Tomoyuki Ushiyama, Mitsunobu NAKATANI | 2025-04-01 |