Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5584308 | Permanent wave method and apparatus | — | 1996-12-17 |
| 5493033 | Process for purifying tetrachlorophthalic anhydride | Kyoichi Tomita, Zentaro Ueda | 1996-02-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5584308 | Permanent wave method and apparatus | — | 1996-12-17 |
| 5493033 | Process for purifying tetrachlorophthalic anhydride | Kyoichi Tomita, Zentaro Ueda | 1996-02-20 |