Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979137 | Coupling ring | Miyoshi Kimura, Tatsuya Hayashi, Yuji Yamaguchi, Kazuhiro Oya | 2015-03-17 |
| 8965714 | Diagnostic mechanism | Yuji Yamaguchi, Masao Yamaguchi, Kentaro Nagai | 2015-02-24 |