Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5538650 | Process for producing mixture of sulfurized alkaline earth metal salts of salicylic acid compound and phenol | Masato Goto, Yoshihiro Kojima, Sanae Ueda | 1996-07-23 |
| 5446202 | Over-based sulfurized alkaline earth metal phenate and process for producing the same | Masato Goto, Sanae Ueda | 1995-08-29 |
| 5292968 | Process for producing over-based alkaline earth metal phenate | Sanae Ueda, Yoshihiro Kojima, Shinji Yamaoka | 1994-03-08 |