Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48187 | Grease composition for rolling bearing | Atsushi Yokouchi, Youichiro Sugimori, Yasunobu Fujita, Michiharu Naka, Atsushi Shibayama +1 more | 2020-09-01 |
| 6482779 | Lubricating grease composition and rolling apparatus comprising same | Michiharu Naka, Atsushi Yokouchi, Koichi Hachiya, Toru Takamizawa, Yasunobu Fujita +3 more | 2002-11-19 |
| 6482780 | Grease composition for rolling bearing | Atsushi Yokouchi, Youichiro Sugimori, Yasunobu Fujita, Michiharu Naka, Atsushi Shibayama +1 more | 2002-11-19 |
| 5922654 | Lubricant composition | Masahiko Yamazaki, Kenichi Iso, Atsushi Yokouchi, Michiharu Naka | 1999-07-13 |