Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11254890 | Lubricant composition | Ryuji Maruyama, Kenji Ohara, Keiichi Moriki, Misato Kishi, Kotaro Hiraga +1 more | 2022-02-22 |
| 11220651 | Reciprocating-type compressor oil | Mai Kitagawa, Hiroshi Kaneko | 2022-01-11 |
| 10920165 | Lubricating oil composition for hydraulic actuator equipped with electronic control device | Hiroyuki Tazaki, Hiroshi Kaneko, Mai Kitagawa | 2021-02-16 |
| 10597600 | Lubricating oil composition | Hiroshi Kaneko, Hiroyuki Tazaki | 2020-03-24 |
| 6114288 | Lubricating oil composition for internal combustion engines | Takashi Fujitsu, Koichi Kubo | 2000-09-05 |