Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4233414 | Polyhydric phenol coester stabilizers | William E. Leistner, Motonobu Minagawa, Yutaka Nakahara | 1980-11-11 |
| 4226991 | Process for preparing 3-alkylthiopropionic acid esters | Yutaka Nakahara, Kenji Tazima | 1980-10-07 |
| 4219463 | Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, .beta.-thioalkyl propionic acid ester and phenol | Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata | 1980-08-26 |