Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8173588 | Iminocarboxylic acid salt-containing solid composition and production method thereof | Yasutaka Sumida | 2012-05-08 |
| 6504054 | Amino acid derivative and producing method thereof | Yasutaka Sumida, Mitsuhiro Kitajima | 2003-01-07 |