Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10087389 | Lubricating oil composition | Shingo MATSUKI, Go Tatsumi, Hironori Isoh, Masaaki Itou | 2018-10-02 |
| 8415283 | Lubricating oil composition for diesel engine | Mineo Kagaya | 2013-04-09 |
| 7612025 | Lubricating oil composition | Kazuhiro Yagishita, Shouzaburou Konishi | 2009-11-03 |
| 6704386 | Fuel channel box and a method of manufacturing the same | Michio Nakayama, Takehiro Seto, Tatsuo Seki | 2004-03-09 |
| 6642189 | Engine oil compositions | Jinichi Igarashi, Kiyoshi Inoue | 2003-11-04 |