Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9695935 | Sealing device | Yusaku Nakazono, Yasuhisa Arita | 2017-07-04 |
| 9194498 | Sealing device | Akira Yoshino | 2015-11-24 |
| 8851480 | Lip type seal | Hideyuki Murakami, Yusaku Nakazono | 2014-10-07 |
| 7467797 | Lip-type seal | Yasuhiro Ikeda, Hajime Ichiyasu, Ichiro Miyai, Takeshi Yamada, Masami Osako | 2008-12-23 |