Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916851 | Lubricating oil for internal combustion engine comprising oxymolybdenum dithiocarbamate sulfide | Yasushi Naitoh, Toru Imori, Kouichi Nakamura | 1999-06-29 |
| 5049742 | Apparatus for detecting deterioration of engine oil | Yasushi Naito, Ryoichi Inada | 1991-09-17 |
| 4925596 | Lubricating oil composition containing molybdenum and zinc compounds for internal combustion engine | Yoshihiro Maeda, Keiichi Tamura | 1990-05-15 |
| 4513155 | Lubricating oil for diesel engines | Kunimitsu Tamura | 1985-04-23 |