Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7946592 | Bearing seal | Hiroshi Yamamoto, Masato Miyake, Kazuhiro Hatake, Toru Matsuyama | 2011-05-24 |
| 7914209 | Bearing seal and swing device | Hiroshi Yamamoto, Ryuusuke Komura | 2011-03-29 |