Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613947 | Method of measuring color difference of dyestuffs | Masakazu Suzuka, Hiromu Ohashi, Yukio Murata | 1986-09-23 |
| 4597670 | Method of measuring color difference of dyestuffs | Hiromu Ohashi, Masakazu Suzuka, Yukio Murata | 1986-07-01 |