Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6329327 | Lubricant and lubricating composition | Noriyoshi Tanaka, Aritoshi Fukushima, Kazuhisa Morita, Kazuhiro Umehara, Yoko Saito | 2001-12-11 |
| 6268316 | Lubricating composition | Noriyoshi Tanaka, Aritoshi Fukushima, Kazuhisa Morita, Yoko Saito | 2001-07-31 |
| 6245725 | Lubricating compositions | Noriyoshi Tanaka, Yukio Tatsumi, Yoko Saito | 2001-06-12 |