Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12222344 | Method for using lubricating oil composition and method for evaluating degradation | Moritsugu Kasai | 2025-02-11 |
| 11034908 | Lubricant composition | Ikuko NAKAYA | 2021-06-15 |
| 10793803 | Gasoline engine lubricant oil composition and manufacturing method therefor | — | 2020-10-06 |
| 10301570 | Lubricating oil composition for internal combustion engine | Motoharu Ishikawa, Shinji Suzuki | 2019-05-28 |
| 8975354 | Polypropylene resin composition | Yoshio Sugimoto, Mitsuru Fujisawa | 2015-03-10 |