Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187209 | Colloidal metal dispersion, and a colloidal metal complex | Hidefumi Hirai, Makoto Komiyama | 1993-02-16 |
| 4888248 | Colloidal metal dispersion, and a colloidal metal complex | Hidefumi Hirai, Makoto Komiyama | 1989-12-19 |