Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11332687 | Friction adjusting agent and lubricating oil composition | Kazushige MATSUBARA, Hiroaki Koshima, Toshiaki Iwai | 2022-05-17 |
| 9587200 | Lubricant composition for internal combustion engine | Toshimasa Utaka | 2017-03-07 |
| 9309481 | Lubricant composition | Masashi Kaji | 2016-04-12 |
| 8841242 | Anti-wear agent, additive composition for lubricant, and lubricant composition | Hiroaki Koshima | 2014-09-23 |
| 8748358 | Lubricating oil additive, lubricating oil composition containing the same, various low-friction sliding members, rolling bearing, and sliding bearing | Hiroaki Koshima | 2014-06-10 |
| 8722595 | Lubricating oil compositions | Junichi Yagi, Hideto Kamimura | 2014-05-13 |
| 8367591 | Lubricating oil composition | — | 2013-02-05 |
| 8349775 | Lubricant composition | Kazuhiro Teshima | 2013-01-08 |
| 8338342 | Lubricant composition | — | 2012-12-25 |
| 8309499 | Lubricant composition for internal combustion engine | — | 2012-11-13 |
| 8071515 | Lubricating oil composition | Kazuhiro Teshima | 2011-12-06 |
| 7960318 | Lubricating oil composition for internal combustion engine | Motoharu Ishikawa, Kazuhiro Teshima | 2011-06-14 |
| 6159904 | Pyrazole derivatives | Masashi Sakamoto, Hiroshi Yamamoto, Hidetsugu Ikeda | 2000-12-12 |
| 6037312 | Isoxazole derivatives | Yoriyuki Takashima, Masashi Sakamoto | 2000-03-14 |
| 5981439 | Cyclohexanedione derivatives and herbicides containing them | Ichiro Nasuno, Hiroshi Yamamoto, Kazuyoshi Koike | 1999-11-09 |
| 5801121 | Cyclohexanedione derivatives and herbicide containing them | Ichiro Nasuno, Hiroshi Yamamoto, Kazuyoshi Koike | 1998-09-01 |