Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325775 | Method for producing polyphenol derivative, polyphenol derivative, and polyphenol derivative-containing resin composition material | Yoshihito KOYAMA | 2025-06-10 |
| 11518886 | Modified lignin, modified polyphenol manufacturing method, and modified lignin-including resin composition material | Yoshihito KOYAMA | 2022-12-06 |
| 11505655 | Modified lignin manufacturing method, modified lignin, and modified lignin-including resin composition material | Yoshihito KOYAMA | 2022-11-22 |
| 8748659 | Method for producing alpha,beta-unsaturated carboxylic acid-N,N-disubstituted amide and method for producing 3-alkoxycarboxylic acid-N,N-disubstituted amide | Yasushi Shiraki, Makoto Kashima | 2014-06-10 |
| 7642094 | Method of measuring biodegradation rate of unnatural organic compound | Shinji Ito | 2010-01-05 |
| 5498735 | Process of producing .alpha.-olefin | Kunio Takeuchi, Takao Tamura | 1996-03-12 |