Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5895777 | Petroleum additive having excellent storage stability and heat stability comprising an alkaline earth metal salt of aromatic hydroxycarboxylic acid or a sulfurized mixture thereof | Sanae Ueda, Jun Imai | 1999-04-20 |
| 5292968 | Process for producing over-based alkaline earth metal phenate | Sanae Ueda, Yoshihiro Kojima, Makoto Nishishita | 1994-03-08 |