Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12419812 | Film-forming composition containing surfactant or surfactant and salt as whitening agent | Takahisa Takubo, Hitomi Doi | 2025-09-23 |
| 12384920 | Azo iron complex dye, ink composition containing same, and method for producing azo iron complex dye | Masakazu Taniguchi, Keigo Kanbara, Hayato Inaba | 2025-08-12 |
| 12303575 | Film-forming composition containing surfactant or surfactant and salt as whitening agent | Takahisa Takubo, Hitomi Doi | 2025-05-20 |