Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8993799 | Method for producing a purified naphthalene dicarboxylic acid | Masayoshi Hayashi, Akio Hashimoto, Ryuusuke Shigematsu | 2015-03-31 |
| 8039650 | Process for producing tetraglycidylamino compound | Tsutomu Numoto, Jyunichi Hisae | 2011-10-18 |
| 5900491 | Preparation process and purification process of cyclic ester | Yasushi Higuchi, Masahiro Kurokawa | 1999-05-04 |