Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974881 | Production method of 4,6-diaminoresorcin | Yukihiro Kumamoto, Masahiko Kusumoto, Hideki Mizuta, Masazumi Takaoka | 2005-12-13 |
| 6359180 | Production method of 4,6-diaminoresorcin | Yukihiro Kumamoto, Masahiko Kusumoto, Hideki Mizuta, Masazumi Takaoka | 2002-03-19 |